Staged publishing support

* Validate that projects use Changesets CLI v3 and direct Changesets CLI v2 users to `changesets/action@v1`

* better spy/mocking

* fmt

* shuffle

.babelrc

@@ -1,6 +0,0 @@
-{
-  "presets": [
-    ["@babel/preset-env", { "targets": { "node": 10 } }],
-    "@babel/preset-typescript"
-  ]
-}

.changeset/all-cars-grin.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Fix the computed publish plan path passed internally to `changeset pack` by the `/pack` subaction.

.changeset/bright-lions-check.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Validate that projects use Changesets CLI v3 and direct Changesets CLI v2 users to `changesets/action@v1`.

.changeset/calm-files-warn.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Allow custom publish scripts to complete without a Changesets output file, warning that GitHub releases and git tags cannot be created when that file is missing.

.changeset/chubby-geese-sink.md

@@ -0,0 +1,7 @@
+---
+"@changesets/action": major
+---
+
+Add a new `push-git-tags` option that complements `create-github-releases` to control specifically if git tags should be created but not GitHub releases.
+
+If `create-github-releases` was previously set to `false`, which also indirectly disabled git tag creation, git tags will now be created instead by default. If this is not desired, set `push-git-tags` to `false` explicitly.

.changeset/config.json

@@ -1,13 +1,14 @@
 {
-  "$schema": "https://unpkg.com/@changesets/config@1.6.2/schema.json",
-  "changelog": [
-    "@changesets/changelog-github",
-    { "repo": "changesets/action" }
-  ],
+  "$schema": "https://unpkg.com/@changesets/config@4.0.0-next.6/schema.json",
+  "changelog": "@changesets/changelog-github",
   "commit": false,
   "linked": [],
   "access": "restricted",
   "baseBranch": "main",
   "updateInternalDependencies": "patch",
-  "ignore": []
+  "ignore": [],
+  "privatePackages": {
+    "version": true,
+    "tag": true
+  }
 }

.changeset/eight-clocks-pull.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": minor
+---
+
+Add new `/select-mode`, `/version`, and `/publish` sub-actions to better control version and publish steps

.changeset/eighty-doors-swim.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": major
+---
+
+Removed compatibility support for old Changesets v1.

.changeset/eighty-parks-tickle.md

@@ -0,0 +1,17 @@
+---
+"@changesets/action": major
+---
+
+Rename the root action inputs and outputs to better match the sub-actions' conventions.
+
+Inputs:
+
+- `version` -> `version-script`
+- `publish` -> `publish-script`
+- `commit` -> `commit-message`
+- `title` -> `pr-title`
+- `branch` -> `pr-base-branch`
+
+Outputs:
+
+- `pull-request-number` -> `pr-number`

.changeset/fiery-toes-vanish.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": major
+---
+
+Remove support for passing custom GitHub token through the GITHUB_TOKEN environment variable. It should be passed to the `github-token` input instead.

.changeset/git-cli-auth-header.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Authenticate git CLI pushes with the configured GitHub token using Git extra headers instead of writing to a global `.netrc` file.

.changeset/git-cli-server-url.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Derive the Git server URL from the GitHub Actions context when configuring git CLI authentication to support GitHub Enterprise Server setups.

.changeset/lemon-turtles-itch.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": major
+---
+
+Remove `cwd` option for `changesets/action`. Use the step `working-directory` option instead to change the directory.

.changeset/pre.json

@@ -0,0 +1,20 @@
+{
+  "mode": "pre",
+  "tag": "next",
+  "changesets": [
+    "all-cars-grin",
+    "chubby-geese-sink",
+    "eight-clocks-pull",
+    "eighty-doors-swim",
+    "eighty-parks-tickle",
+    "fiery-toes-vanish",
+    "git-cli-auth-header",
+    "git-cli-server-url",
+    "lemon-turtles-itch",
+    "ready-mangos-boil",
+    "shaky-rings-type",
+    "shy-months-crash",
+    "silent-tips-dance",
+    "yellow-roses-fix"
+  ]
+}

.changeset/ready-mangos-boil.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Fixed usage of `--from-publish-plan` flag used by the `/pack` subaction

.changeset/shaky-rings-type.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": major
+---
+
+Update to Changesets v3 packages

.changeset/shy-months-crash.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": minor
+---
+
+Published packages detection done through stdout parsing was replaced with one based on the shared output file using `CHANGESETS_OUTPUT` environment variable. When using custom scripts this environment variable should always be passed down to the Changesets CLI invocations.

.changeset/silent-tips-dance.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": patch
+---
+
+Fix the `/version` subaction to not crash on missing `pr-base-branch` input. This input is meant to be optional.

.changeset/staged-publishing.md

@@ -0,0 +1,7 @@
+---
+"@changesets/action": minor
+---
+
+Add staged publishing support to the publish action and a GitHub release action
+that validates the staged handoff, verifies approved packages, and creates tags
+and releases idempotently.

.changeset/yellow-roses-fix.md

@@ -0,0 +1,5 @@
+---
+"@changesets/action": major
+---
+
+Rename the input and output names to kebab-case instead of camelCase to match the official GitHub actions pattern

.github/CODEOWNERS

@@ -0,0 +1,5 @@
+/.github/** @Andarist @bluwy @emmatown
+/action.yml @Andarist @bluwy @emmatown
+/scripts/bump.ts @Andarist @bluwy @emmatown
+/scripts/release.ts @Andarist @bluwy @emmatown
+/scripts/release-pr.ts @Andarist @bluwy @emmatown

.github/actions/ci-setup/action.yml

@@ -0,0 +1,24 @@
+name: Setup CI
+description: Setup CI
+
+inputs:
+  skip-cache:
+    description: "Whether to skip the cache"
+    required: false
+    default: "false"
+
+runs:
+  using: composite
+  steps:
+    - name: Set up pnpm
+      uses: pnpm/action-setup@8912a9102ac27614460f54aedde9e1e7f9aec20d # v6.0.5
+
+    - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+      with:
+        node-version-file: ".node-version"
+        package-manager-cache: ${{ inputs.skip-cache != 'true' }}
+        cache: ${{ inputs.skip-cache != 'true' && 'pnpm' || '' }}
+
+    - name: Install dependencies
+      shell: bash
+      run: pnpm install --frozen-lockfile

.github/actions/setup-bot-auth/action.yml

@@ -0,0 +1,44 @@
+name: Setup bot auth
+description: Create a GitHub App token and configure matching git identity
+
+inputs:
+  client-id:
+    description: GitHub App client ID
+    required: true
+  private-key:
+    description: GitHub App private key
+    required: true
+  permission-contents:
+    description: Contents permission for the GitHub App token
+    required: false
+    default: write
+  permission-pull-requests:
+    description: Pull requests permission for the GitHub App token
+    required: false
+
+outputs:
+  token:
+    description: GitHub App installation access token
+    value: ${{ steps.app-token.outputs.token }}
+
+runs:
+  using: composite
+  steps:
+    - uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
+      id: app-token
+      with:
+        client-id: ${{ inputs.client-id }}
+        private-key: ${{ inputs.private-key }}
+        permission-contents: ${{ inputs.permission-contents }}
+        permission-pull-requests: ${{ inputs.permission-pull-requests }}
+
+    - name: Setup Git user
+      shell: bash
+      run: |
+        app_user="$APP_SLUG[bot]"
+        app_id="$(gh api "/users/$app_user" --jq .id)"
+        git config user.name "$app_user"
+        git config user.email "$app_id+$app_user@users.noreply.github.com"
+      env:
+        APP_SLUG: ${{ steps.app-token.outputs.app-slug }}
+        GH_TOKEN: ${{ steps.app-token.outputs.token }}

.github/dependabot.yml

@@ -0,0 +1,32 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    cooldown:
+      default-days: 7
+    open-pull-requests-limit: 10
+    versioning-strategy: increase
+    groups:
+      production-dependencies:
+        dependency-type: "production"
+        update-types:
+          - minor
+          - patch
+      development-dependencies:
+        dependency-type: "development"
+        update-types:
+          - minor
+          - patch
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    cooldown:
+      default-days: 7
+    open-pull-requests-limit: 5
+    groups:
+      github-actions:
+        patterns:
+          - "*"

.github/workflows/ci.yml

@@ -1,24 +1,94 @@
-name: Node CI
+name: CI
 
-on: [pull_request]
+on:
+  pull_request:
+  # merge queue is required so all commits on target branches trigger this workflow
+  # despite lack of the push event trigger here
+  merge_group:
+    branches:
+      - main
+      - next
+      # merge group rulesets don't allow wildcards so in settings each maintenance branch needs to be added separately
+      - "maintenance/v*" # branch rulesets don't support v[0-9]+
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.sha }}
+  cancel-in-progress: true
 
 jobs:
-  build:
-    timeout-minutes: 20
-
+  lint-workflows:
+    name: Lint workflows
     runs-on: ubuntu-latest
-
+    permissions:
+      actions: read # only required in private repos
+      security-events: write # allow writing security events
     steps:
-      - name: Checkout Repo
-        uses: actions/checkout@v2
-
-      - name: Use Node.js 16
-        uses: actions/setup-node@v1
+      - name: Checkout repository
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
-          node-version: 16.x
+          persist-credentials: false
 
-      - name: Install Dependencies
-        run: yarn --frozen-lockfile
+      - name: Run zizmor
+        uses: zizmorcore/zizmor-action@5f14fd08f7cf1cb1609c1e344975f152c7ee938d # v0.5.6
+        with:
+          persona: pedantic
+          annotations: true
+          advanced-security: false
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/ci-setup
 
       - name: Test
-        run: yarn test
+        run: pnpm test
+
+  typecheck:
+    name: Typecheck
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/ci-setup
+
+      - name: Typecheck
+        run: pnpm typecheck
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/ci-setup
+
+      - name: Format
+        run: pnpm format
+
+  ci-ok:
+    name: CI OK
+    runs-on: ubuntu-latest
+    if: always()
+    needs: [lint-workflows, test, typecheck, lint]
+    steps:
+      - name: Exit with error if some jobs are not successful
+        run: exit 1
+        if: ${{ always() && (contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')) }}

.github/workflows/publish.yml

@@ -0,0 +1,114 @@
+name: Publish
+
+on:
+  push:
+    branches:
+      - main
+      - next
+      - "maintenance/v*" # branch rulesets don't support v[0-9]+
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+  queue: max
+
+permissions: {} # each job should define its own permission explicitly
+
+jobs:
+  select-mode:
+    name: Select mode
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    outputs:
+      mode: ${{ steps.select-mode.outputs.mode }}
+    permissions:
+      contents: read # to check out repo (actions/checkout)
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/ci-setup
+        with:
+          skip-cache: true # avoid cache poisoning attacks
+
+      - name: Build
+        run: pnpm build
+
+      - name: Select mode
+        id: select-mode
+        uses: ./select-mode
+
+  version:
+    name: Version
+    if: needs.select-mode.outputs.mode == 'version'
+    needs: select-mode
+    runs-on: ubuntu-latest
+    environment: version
+    timeout-minutes: 20
+    permissions:
+      contents: read # to check out repo (actions/checkout)
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/ci-setup
+        with:
+          skip-cache: true # avoid cache poisoning attacks
+
+      - name: Build
+        run: pnpm build
+
+      - uses: ./.github/actions/setup-bot-auth
+        id: bot-auth
+        with:
+          client-id: ${{ vars.APP_CLIENT_ID }}
+          private-key: ${{ secrets.APP_PRIVATE_KEY }}
+          permission-contents: write # to create version commits (changesets/action)
+          permission-pull-requests: write # to create pull request (changesets/action)
+
+      - name: Create or update release pull request
+        id: changesets
+        uses: ./version
+        with:
+          github-token: ${{ steps.bot-auth.outputs.token }}
+          setup-git-user: false
+          script: pnpm bump
+
+  publish:
+    name: Publish
+    if: needs.select-mode.outputs.mode == 'publish'
+    needs: select-mode
+    runs-on: ubuntu-latest
+    environment: marketplace
+    timeout-minutes: 20
+    permissions:
+      contents: write # to create release and have it authored by github-actions (changesets/action)
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/ci-setup
+        with:
+          skip-cache: true # avoid cache poisoning attacks
+
+      - name: Build
+        run: pnpm build
+
+      - uses: ./.github/actions/setup-bot-auth
+        id: bot-auth
+        with:
+          client-id: ${{ vars.APP_CLIENT_ID }}
+          private-key: ${{ secrets.APP_PRIVATE_KEY }}
+          permission-contents: write # to bypass branch and tag protection rules (release.ts)
+
+      - name: Publish to marketplace
+        uses: ./publish
+        with:
+          github-token: ${{ steps.bot-auth.outputs.token }}
+          script: pnpm release

.github/workflows/release-pr.yml

@@ -0,0 +1,246 @@
+name: Release PR
+
+on:
+  issue_comment:
+    types: [created]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.run_id }}
+  cancel-in-progress: true
+
+permissions: {}
+
+jobs:
+  release_check:
+    name: Validate release request
+    if: github.repository == 'changesets/action' && github.event.issue.pull_request && startsWith(github.event.comment.body, '/release-pr')
+    timeout-minutes: 5
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read # to inspect the pull request commit state (changesets/action)
+      issues: write # to add and remove reactions on the triggering comment (changesets/action)
+      pull-requests: read # to inspect the pull request head state (changesets/action)
+
+    steps:
+      - id: report_in_progress
+        run: |
+          in_progress_reaction_id=$(gh api "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions" -f content='eyes' --jq '.id')
+          echo "in_progress_reaction_id=$in_progress_reaction_id" >> "$GITHUB_OUTPUT"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+
+      - id: parse_command
+        run: |
+          if [[ "$COMMENT_BODY" =~ ^/release-pr[[:space:]]+([0-9a-fA-F]{7,40})[[:space:]]*$ ]]
+          then
+            echo "requested_sha=${BASH_REMATCH[1]}" >> "$GITHUB_OUTPUT"
+          else
+            echo "Expected '/release-pr <sha>' where <sha> is a 7-40 character commit SHA."
+            exit 1
+          fi
+        env:
+          COMMENT_BODY: ${{ github.event.comment.body }}
+
+      - id: check_authorization
+        run: |
+          if [[ "$AUTHOR_ASSOCIATION" == 'MEMBER' || "$AUTHOR_ASSOCIATION" == 'OWNER' || "$AUTHOR_ASSOCIATION" == 'COLLABORATOR' ]]
+          then
+            echo "User is authorized to release"
+          else
+            echo "User is not authorized to release"
+            exit 1
+          fi
+        env:
+          AUTHOR_ASSOCIATION: ${{ github.event.comment.author_association }}
+
+      - id: resolve_requested_sha
+        run: |
+          requested_sha=$(echo "$REQUESTED_SHA" | tr '[:upper:]' '[:lower:]')
+
+          mapfile -t matches < <(
+            gh api "/repos/$GH_REPO/pulls/$ISSUE_NUMBER/commits" --paginate --jq '.[].sha' |
+              awk -v sha="$requested_sha" 'index(tolower($0), sha) == 1 { print $0 }'
+          )
+
+          if [[ ${#matches[@]} -eq 0 ]]
+          then
+            echo "Requested SHA $REQUESTED_SHA is not part of this pull request."
+            exit 1
+          fi
+
+          if [[ ${#matches[@]} -gt 1 ]]
+          then
+            echo "Requested SHA $REQUESTED_SHA is ambiguous for this pull request."
+            exit 1
+          fi
+
+          resolved_sha="${matches[0]}"
+          pr_head_sha=$(gh pr view "$ISSUE_NUMBER" --json headRefOid --jq '.headRefOid')
+
+          if [[ "$resolved_sha" != "$pr_head_sha" ]]
+          then
+            echo "Requested SHA $resolved_sha is not the current PR head $pr_head_sha."
+            exit 1
+          fi
+
+          echo "resolved_sha=$resolved_sha" >> "$GITHUB_OUTPUT"
+          echo "pr_head_sha=$pr_head_sha" >> "$GITHUB_OUTPUT"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          REQUESTED_SHA: ${{ steps.parse_command.outputs.requested_sha }}
+
+      - id: get_pr_head_repository
+        run: |
+          head_repository=$(gh pr view "$ISSUE_NUMBER" --json headRepositoryOwner,headRepository --jq '.headRepositoryOwner.login + "/" + .headRepository.name')
+          echo "head_repository=$head_repository" >> "$GITHUB_OUTPUT"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+
+    outputs:
+      in_progress_reaction_id: ${{ steps.report_in_progress.outputs.in_progress_reaction_id }}
+      requested_sha: ${{ steps.parse_command.outputs.requested_sha }}
+      resolved_sha: ${{ steps.resolve_requested_sha.outputs.resolved_sha }}
+      pr_head_sha: ${{ steps.resolve_requested_sha.outputs.pr_head_sha }}
+      head_repository: ${{ steps.get_pr_head_repository.outputs.head_repository }}
+
+  release:
+    name: Release snapshot
+    if: github.repository == 'changesets/action'
+    timeout-minutes: 20
+    runs-on: ubuntu-latest
+    needs: release_check
+
+    permissions:
+      contents: write # to create the release commit and publish snapshot artifacts (changesets/action)
+      issues: write # to add and remove reactions on the triggering comment (changesets/action)
+      pull-requests: write # to comment on the pull request with the release result (changesets/action)
+
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
+
+      - uses: ./.github/actions/ci-setup
+        with:
+          skip-cache: true # avoid cache poisoning attacks
+
+      - name: Fetch validated commit from pull request head repository
+        run: |
+          git remote add pr-head "https://github.com/$HEAD_REPOSITORY.git"
+          git fetch --no-tags pr-head "$RESOLVED_SHA"
+        env:
+          HEAD_REPOSITORY: ${{ needs.release_check.outputs.head_repository }}
+          RESOLVED_SHA: ${{ needs.release_check.outputs.resolved_sha }}
+
+      - name: Checkout validated commit
+        run: git checkout --detach "$RESOLVED_SHA"
+        env:
+          RESOLVED_SHA: ${{ needs.release_check.outputs.resolved_sha }}
+
+      - name: Check if Version Packages PR
+        id: check_version_packages
+        run: |
+          version_packages=$(gh pr view "$ISSUE_NUMBER" --json headRefName --jq '.headRefName|startswith("changeset-release/")')
+          echo "version_packages=$version_packages" >> "$GITHUB_OUTPUT"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+
+      - name: Reset Version Packages PR
+        if: steps.check_version_packages.outputs.version_packages == 'true'
+        run: git reset --hard HEAD~1
+
+      - name: Create snapshot version
+        run: pnpm changeset version --snapshot "pr$ISSUE_NUMBER"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+
+      - name: Build
+        run: pnpm build
+
+      - uses: ./.github/actions/setup-bot-auth
+        id: bot-auth
+        with:
+          client-id: ${{ vars.APP_CLIENT_ID }}
+          private-key: ${{ secrets.APP_PRIVATE_KEY }}
+          permission-contents: write # to push the release snapshot branch (release-pr.ts)
+
+      - name: Release snapshot version
+        run: pnpm release:pr
+        env:
+          GITHUB_TOKEN: ${{ steps.bot-auth.outputs.token }}
+
+      - name: Add success reaction
+        run: gh api "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions" -f content='rocket'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+
+      - name: Remove in-progress reaction
+        run: gh api -X DELETE "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions/$IN_PROGRESS_REACTION_ID"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+          IN_PROGRESS_REACTION_ID: ${{ needs.release_check.outputs.in_progress_reaction_id }}
+
+      - name: Comment success
+        run: |
+          published_commit="$(git rev-parse HEAD)"
+          body="The release for \`$RESOLVED_SHA\` triggered by [this comment]($COMMENT_URL) has [succeeded]($RUN_URL). Published commit: [$GH_REPO@$published_commit](https://github.com/$GH_REPO/commit/$published_commit)."
+          gh pr comment "$ISSUE_NUMBER" --body "$body"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          COMMENT_URL: ${{ github.event.comment.url }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          RESOLVED_SHA: ${{ needs.release_check.outputs.resolved_sha }}
+
+  report-failure-if-needed:
+    name: Report failure
+    needs: [release_check, release]
+    timeout-minutes: 2
+    runs-on: ubuntu-latest
+    if: failure() && github.repository == 'changesets/action' && (needs.release_check.result == 'failure' || needs.release.result == 'failure')
+
+    permissions:
+      issues: write # to add and remove reactions on the triggering comment (changesets/action)
+      pull-requests: write # to comment on the pull request with the failure result (changesets/action)
+
+    steps:
+      - name: Add failure reaction
+        run: gh api "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions" -f content='-1'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+
+      - name: Remove in-progress reaction
+        run: gh api -X DELETE "/repos/$GH_REPO/issues/comments/$COMMENT_ID/reactions/$IN_PROGRESS_REACTION_ID"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          COMMENT_ID: ${{ github.event.comment.id }}
+          IN_PROGRESS_REACTION_ID: ${{ needs.release_check.outputs.in_progress_reaction_id }}
+
+      - name: Comment failure
+        run: |
+          body="The release for \`$REQUESTED_SHA\` triggered by [this comment]($COMMENT_URL) has [failed]($RUN_URL)."
+          gh pr comment "$ISSUE_NUMBER" --body "$body"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          COMMENT_URL: ${{ github.event.comment.url }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+          REQUESTED_SHA: ${{ needs.release_check.outputs.requested_sha }}

.github/workflows/version-or-publish.yml

@@ -1,35 +0,0 @@
-name: Version or Publish
-
-on:
-  push:
-    branches:
-      - main
-
-concurrency: ${{ github.workflow }}-${{ github.ref }}
-
-jobs:
-  changesets:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Repo
-        uses: actions/checkout@v2
-
-      - name: Use Node.js 16
-        uses: actions/setup-node@v1
-        with:
-          node-version: 16.x
-
-      - name: Install Dependencies
-        run: yarn --frozen-lockfile
-
-      - name: Build
-        run: yarn build
-
-      - name: Create Release Pull Request or Publish
-        id: changesets
-        uses: ./
-        with:
-          version: yarn bump
-          publish: yarn release
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.node-version

@@ -0,0 +1 @@
+v24.11.0

.oxfmtrc.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "./node_modules/oxfmt/configuration_schema.json",
+  "printWidth": 80,
+  "sortImports": {
+    "newlinesBetween": false
+  }
+}

.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Debug Current Test File",
+      "autoAttachChildProcesses": true,
+      "skipFiles": [],
+      "program": "${workspaceRoot}/node_modules/vitest/vitest.mjs",
+      "args": ["run", "${relativeFile}"],
+      "smartStep": true,
+      "console": "integratedTerminal"
+    }
+  ]
+}

.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+  "js/ts.tsdk.path": "node_modules/typescript/lib",
+  "editor.defaultFormatter": "oxc.oxc-vscode"
+}

CHANGELOG.md

@@ -1,5 +1,206 @@
 # @changesets/action
 
+## 2.0.0-next.3
+
+### Major Changes
+
+- [#680](https://github.com/changesets/action/pull/680) [`ca57073`](https://github.com/changesets/action/commit/ca57073900dc678254406a052a03c0c8824e319d) Thanks [@bluwy](https://github.com/bluwy)! - Add a new `push-git-tags` option that complements `create-github-releases` to control specifically if git tags should be created but not GitHub releases.
+
+  If `create-github-releases` was previously set to `false`, which also indirectly disabled git tag creation, git tags will now be created instead by default. If this is not desired, set `push-git-tags` to `false` explicitly.
+
+- [#681](https://github.com/changesets/action/pull/681) [`7359107`](https://github.com/changesets/action/commit/73591071e61c7f61cf322dd7a6341dc29a8e1d4e) Thanks [@bluwy](https://github.com/bluwy)! - Rename the root action inputs and outputs to better match the sub-actions' conventions.
+
+  Inputs:
+  - `version` -> `version-script`
+  - `publish` -> `publish-script`
+  - `commit` -> `commit-message`
+  - `title` -> `pr-title`
+  - `branch` -> `pr-base-branch`
+
+  Outputs:
+  - `pull-request-number` -> `pr-number`
+
+- [#674](https://github.com/changesets/action/pull/674) [`164652b`](https://github.com/changesets/action/commit/164652bdd60525670d95291addb8c6f92833ac60) Thanks [@bluwy](https://github.com/bluwy)! - Remove support for passing custom GitHub token through the GITHUB_TOKEN environment variable. It should be passed to the `github-token` input instead.
+
+- [#673](https://github.com/changesets/action/pull/673) [`823cf74`](https://github.com/changesets/action/commit/823cf741ca57c5e22652123d3a847dfafcd77ca0) Thanks [@bluwy](https://github.com/bluwy)! - Update to Changesets v3 packages
+
+- [#668](https://github.com/changesets/action/pull/668) [`0eae789`](https://github.com/changesets/action/commit/0eae789230defbc4ad287e9b476aba7e842e34e0) Thanks [@bluwy](https://github.com/bluwy)! - Rename the input and output names to kebab-case instead of camelCase to match the official GitHub actions pattern
+
+### Minor Changes
+
+- [#678](https://github.com/changesets/action/pull/678) [`f71ae04`](https://github.com/changesets/action/commit/f71ae043ed5deb17952900091e009a60edef9507) Thanks [@Andarist](https://github.com/Andarist)! - Published packages detection done through stdout parsing was replaced with one based on the shared output file using `CHANGESETS_OUTPUT` environment variable. When using custom scripts this environment variable should always be passed down to the Changesets CLI invocations.
+
+## 2.0.0-next.2
+
+### Patch Changes
+
+- [#670](https://github.com/changesets/action/pull/670) [`5a8b9b7`](https://github.com/changesets/action/commit/5a8b9b721bf683e3bf9bd72ea92a685dc024147b) Thanks [@Andarist](https://github.com/Andarist)! - Authenticate git CLI pushes with the configured GitHub token using Git extra headers instead of writing to a global `.netrc` file.
+
+- [#670](https://github.com/changesets/action/pull/670) [`5a8b9b7`](https://github.com/changesets/action/commit/5a8b9b721bf683e3bf9bd72ea92a685dc024147b) Thanks [@Andarist](https://github.com/Andarist)! - Derive the Git server URL from the GitHub Actions context when configuring git CLI authentication to support GitHub Enterprise Server setups.
+
+## 2.0.0-next.1
+
+### Patch Changes
+
+- [#663](https://github.com/changesets/action/pull/663) [`ccb3811`](https://github.com/changesets/action/commit/ccb38113eaaa4a13eb6aabe09520e49cc8519b84) Thanks [@Andarist](https://github.com/Andarist)! - Fix the computed publish plan path passed internally to `changeset pack` by the `/pack` subaction.
+
+- [#662](https://github.com/changesets/action/pull/662) [`5c88881`](https://github.com/changesets/action/commit/5c88881fff1f0d8b055d4a2d3a74a8ce843db6f3) Thanks [@Andarist](https://github.com/Andarist)! - Fixed usage of `--from-publish-plan` flag used by the `/pack` subaction
+
+- [#666](https://github.com/changesets/action/pull/666) [`dc29b73`](https://github.com/changesets/action/commit/dc29b738b532d9e95f46b9bf493e2e3fdf48a7ed) Thanks [@Andarist](https://github.com/Andarist)! - Fix the `/version` subaction to not crash on missing `pr-base-branch` input. This input is meant to be optional.
+
+## 2.0.0-next.0
+
+### Major Changes
+
+- [#657](https://github.com/changesets/action/pull/657) [`4f718b5`](https://github.com/changesets/action/commit/4f718b5921490b1efeb015a81abb6a4633892851) Thanks [@Andarist](https://github.com/Andarist)! - Removed compatibility support for old Changesets v1.
+
+- [#659](https://github.com/changesets/action/pull/659) [`5649ff4`](https://github.com/changesets/action/commit/5649ff41b8eb1b7a281011e45df781c6d4628fd0) Thanks [@bluwy](https://github.com/bluwy)! - Remove `cwd` option for `changesets/action`. Use the step `working-directory` option instead to change the directory.
+
+### Minor Changes
+
+- [#656](https://github.com/changesets/action/pull/656) [`a12d90d`](https://github.com/changesets/action/commit/a12d90de8394e63c952622b2fd3f98c8729c48b0) Thanks [@bluwy](https://github.com/bluwy)! - Add new `/select-mode`, `/version`, and `/publish` sub-actions to better control version and publish steps
+
+## 1.9.0
+
+### Minor Changes
+
+- [#636](https://github.com/changesets/action/pull/636) [`b072bcc`](https://github.com/changesets/action/commit/b072bccc4c664a373c42168eed9139dce1e003b1) Thanks [@bluwy](https://github.com/bluwy)! - Add a new `@changesets/action/pr-comment` sub-action to comment on PRs
+
+- [#625](https://github.com/changesets/action/pull/625) [`8795eee`](https://github.com/changesets/action/commit/8795eee5eee884e887d352ac673a515ffe35aaa6) Thanks [@bluwy](https://github.com/bluwy)! - Add a new `@changesets/action/pr-status` sub-action to generate the changeset status comment for PRs as an alternative to the [Changesets Bot](https://github.com/apps/changeset-bot).
+
+### Patch Changes
+
+- [#535](https://github.com/changesets/action/pull/535) [`34f64f6`](https://github.com/changesets/action/commit/34f64f6e2e1e47ddc183f174aa27c197aa47f520) Thanks [@Andarist](https://github.com/Andarist)! - Fixed an issue with GitHub releases not being created for successfully published packages when _some_ packages failed to be published to the registry.
+
+- [#632](https://github.com/changesets/action/pull/632) [`1d54b9e`](https://github.com/changesets/action/commit/1d54b9e660e435237accbcae0b4581af3be641b4) Thanks [@bluwy](https://github.com/bluwy)! - Simplify internal implementation to get changelog entries for a package version
+
+- [#629](https://github.com/changesets/action/pull/629) [`e0c90aa`](https://github.com/changesets/action/commit/e0c90aa7fbd0cc26931a679c5abe9bbc0deb0b50) Thanks [@bluwy](https://github.com/bluwy)! - Fix custom version and publish command argument parsing
+
+- [#645](https://github.com/changesets/action/pull/645) [`f9585d9`](https://github.com/changesets/action/commit/f9585d966a9c7d2f668b97199990de6f885823cf) Thanks [@Andarist](https://github.com/Andarist)! - Improved force-push handling when using `commitMode: "github-api"` so updating an existing branch no longer temporarily resets the target branch to the base commit, avoiding cases where GitHub closes open pull requests during the update. This should remove a possibility of a GitHub state race that caused the force-pushed PRs not being reopened.
+
+## 1.8.0
+
+### Minor Changes
+
+- [#258](https://github.com/changesets/action/pull/258) [`f5dbf72`](https://github.com/changesets/action/commit/f5dbf72f96949cb0daf45152f0f63062df70e97d) Thanks [@tom-sherman](https://github.com/tom-sherman)! - Support draft version PR modes with a new `prDraft` input. Use `create` to create new version PRs as drafts, or `always` to also convert existing version PRs back to draft when updating them.
+
+### Patch Changes
+
+- [#502](https://github.com/changesets/action/pull/502) [`6002dbd`](https://github.com/changesets/action/commit/6002dbd987f49a3c0a134910d9c7bca975b79977) Thanks [@oshytiko](https://github.com/oshytiko)! - Fixed initial `.changeset` state being picked up, when `cwd` parameter is provided
+
+- [#536](https://github.com/changesets/action/pull/536) [`81b3f61`](https://github.com/changesets/action/commit/81b3f61ebffcb868f73e4c0b2682517149c834a2) Thanks [@radnan](https://github.com/radnan)! - Fixed `.changeset` state being picked for the version command when `cwd` parameter is provided
+
+## 1.7.0
+
+### Minor Changes
+
+- [#564](https://github.com/changesets/action/pull/564) [`935fe87`](https://github.com/changesets/action/commit/935fe876b0054dfc962ac86bcddf028460040d46) Thanks [@Andarist](https://github.com/Andarist)! - Automatically use the GitHub-provided token to allow most users to avoid explicit `GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}` configuration.
+
+### Patch Changes
+
+- [#545](https://github.com/changesets/action/pull/545) [`54220dd`](https://github.com/changesets/action/commit/54220dd92c06e7da112b139f95d8beb933e4cdde) Thanks [@ryanbas21](https://github.com/ryanbas21)! - The `.npmrc` generation now intelligently handles both traditional NPM token authentication and trusted publishing scenarios by only appending the auth token when `NPM_TOKEN` is defined. This prevents 'undefined' from being written to the registry configuration when using OIDC tokens from GitHub Actions trusted publishing.
+
+- [#563](https://github.com/changesets/action/pull/563) [`6af4a7e`](https://github.com/changesets/action/commit/6af4a7ec080d23ac6b304f69b67fd0aa92e089e7) Thanks [@Andarist](https://github.com/Andarist)! - Don't error on already committed symlinks and executables that stay untouched
+
+## 1.6.0
+
+### Minor Changes
+
+- [#558](https://github.com/changesets/action/pull/558) [`342005d`](https://github.com/changesets/action/commit/342005d41242bccd9dd9ae8d3679efce96af48ae) Thanks [@harsha-venugopal-ledn](https://github.com/harsha-venugopal-ledn)! - Upgrade from Node.js 20 to Node.js 24 LTS
+
+## 1.5.3
+
+### Patch Changes
+
+- [#477](https://github.com/changesets/action/pull/477) [`9d933dc`](https://github.com/changesets/action/commit/9d933dcd11c284ac49a835db884c3c1008b2b96f) Thanks [@Andarist](https://github.com/Andarist)! - Updated `@actions/*` and `@octokit/*` dependencies.
+
+- [#479](https://github.com/changesets/action/pull/479) [`cf373e4`](https://github.com/changesets/action/commit/cf373e45c90a0cc564cd2770de3e9a3a4cdd4603) Thanks [@Andarist](https://github.com/Andarist)! - Switched to `esbuild` for bundling the dist file. This led to 45% file size reduction.
+
+- [#488](https://github.com/changesets/action/pull/488) [`022692b`](https://github.com/changesets/action/commit/022692ba027b33bf46d4d41907a317fbf04461a7) Thanks [@s0](https://github.com/s0)! - Fix PRs sometimes not getting reopened with `commitMode: github-api`
+
+  There was a race-condition that means sometimes existing PRs would not be found,
+  and new PRs would be opened. This has now been fixed by fetching existing PRs
+  before making any changes.
+
+- [#486](https://github.com/changesets/action/pull/486) [`7ed1955`](https://github.com/changesets/action/commit/7ed195554624ebd75c08aa477b53110f61cc78f7) Thanks [@s0](https://github.com/s0)! - Fixed situations in which `cwd` was specified as a relative path and used with (default) `commitMode: git-cli`
+
+- [#461](https://github.com/changesets/action/pull/461) [`e9c36b6`](https://github.com/changesets/action/commit/e9c36b696406360bf04204ad32e3dcf3ad752b77) Thanks [@nayounsang](https://github.com/nayounsang)! - Avoid hitting a deprecation warning when encountering errors from `@octokit/request-error`
+
+## 1.5.2
+
+### Patch Changes
+
+- [#473](https://github.com/changesets/action/pull/473) [`3c24abe`](https://github.com/changesets/action/commit/3c24abeab26da6335c181222faa2ea485a092cf8) Thanks [@s0](https://github.com/s0)! - Make git add work consistently with subdirectories
+
+  Ensure that when running the action from a subdirectory of a repository,
+  only the files from that directory are added, regardless of `commitMode`.
+
+## 1.5.1
+
+### Patch Changes
+
+- [#471](https://github.com/changesets/action/pull/471) [`15ab130`](https://github.com/changesets/action/commit/15ab1306067a396fa9ba7ad363e8a041d457782a) Thanks [@h3rmanj](https://github.com/h3rmanj)! - Bump `@changesets/ghcommit` to v1.4.0, which fixes an issue running this action in monorepos with `commitMode: github-api`
+
+- [#467](https://github.com/changesets/action/pull/467) [`6e57550`](https://github.com/changesets/action/commit/6e575506e63f9e69e475d3eccfdd61b448efc8ae) Thanks [@Vx-V](https://github.com/Vx-V)! - Avoid searching for an existing pull request early.
+
+## 1.5.0
+
+### Minor Changes
+
+- [#391](https://github.com/changesets/action/pull/391) [`207dc3d`](https://github.com/changesets/action/commit/207dc3da2d1907cae0454ce123935401332be72b) Thanks [@s0](https://github.com/s0)! - Introduce a new input `commitMode` that allows using the GitHub API for pushing tags and commits instead of the Git CLI.
+
+  When used with `"github-api"` value all tags and commits will be attributed to the user whose GITHUB_TOKEN is used, and also signed using GitHub's internal GPG key.
+
+## 1.4.10
+
+### Patch Changes
+
+- [#448](https://github.com/changesets/action/pull/448) [`8b16070`](https://github.com/changesets/action/commit/8b16070fe386eed3456c83eeed9460160432cf26) Thanks [@bluwy](https://github.com/bluwy)! - Use full git email (`41898282+github-actions[bot]@users.noreply.github.com`) for github-actions bot when making commits
+
+## 1.4.9
+
+### Patch Changes
+
+- [#415](https://github.com/changesets/action/pull/415) [`57ab80c`](https://github.com/changesets/action/commit/57ab80c61104c270bebc125910ae32da3a5aca46) Thanks [@benmccann](https://github.com/benmccann)! - Improve error message when attempting to publish without publish script defined
+
+## 1.4.8
+
+### Patch Changes
+
+- [#393](https://github.com/changesets/action/pull/393) [`48ab0d2`](https://github.com/changesets/action/commit/48ab0d2f2e77ae169182d022591ef5c18c931ff2) Thanks [@s0](https://github.com/s0)! - Ensure the PR remains open when updated
+
+- [#393](https://github.com/changesets/action/pull/393) [`48ab0d2`](https://github.com/changesets/action/commit/48ab0d2f2e77ae169182d022591ef5c18c931ff2) Thanks [@s0](https://github.com/s0)! - Switch to cheaper API for querying existing PRs
+
+## 1.4.7
+
+### Patch Changes
+
+- [#255](https://github.com/changesets/action/pull/255) [`f2660aa`](https://github.com/changesets/action/commit/f2660aa7e78365f53dbeb4cfa774c1499ec6483a) Thanks [@ernestognw](https://github.com/ernestognw)! - Allow customize PR `branch` field
+
+## 1.4.6
+
+### Patch Changes
+
+- [#350](https://github.com/changesets/action/pull/350) [`9385be9`](https://github.com/changesets/action/commit/9385be9e757839189ea5ee63ec4e3caa8a6ca71b) Thanks [@m-shaka](https://github.com/m-shaka)! - Bump the used node.js from 16 to 20
+
+## 1.4.5
+
+### Patch Changes
+
+- [#282](https://github.com/changesets/action/pull/282) [`eb19e25`](https://github.com/changesets/action/commit/eb19e25e7797cf33dc2de4caa071e85a8057a0f0) Thanks [@mark-omarov](https://github.com/mark-omarov)! - Updated a few dependencies to patch the security vulnerabilities that were reported for their older versions.
+
+## 1.4.4
+
+### Patch Changes
+
+- [#291](https://github.com/changesets/action/pull/291) [`db8a109`](https://github.com/changesets/action/commit/db8a1099bc0ba1dd6f46a5b9df4212e4f69e78c9) Thanks [@varl](https://github.com/varl)! - Wire up [`@octokit/plugin-throttling`](https://github.com/octokit/plugin-throttling.js) with all GitHub Octokit instances
+
+## 1.4.3
+
+### Patch Changes
+
+- [#289](https://github.com/changesets/action/pull/289) [`8b28186`](https://github.com/changesets/action/commit/8b2818674de86a7fc69aebb9ed6b486ee32eb96e) Thanks [@varl](https://github.com/varl)! - Use logging provided by `@actions/core`
+
 ## 1.4.2
 
 ### Patch Changes

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) Changesets team and other contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,25 +1,38 @@
 # Changesets Release Action
 
-This action for [Changesets](https://github.com/atlassian/changesets) creates a pull request with all of the package versions updated and changelogs updated and when there are new changesets on [your configured `baseBranch`](https://github.com/changesets/changesets/blob/main/docs/config-file-options.md#basebranch-git-branch-name), the PR will be updated. When you're ready, you can merge the pull request and you can either publish the packages to npm manually or setup the action to do it for you.
+> [!IMPORTANT]
+> This is the development branch for `changesets/action` v2 compatible with Changesets v3. For the v1 code compatible with Changesets v2, check out the [`maintenance/v1`](https://github.com/changesets/action/tree/maintenance/v1) branch.
+
+This action for [Changesets](https://github.com/changesets/changesets) creates a pull request with all of the package versions updated and changelogs updated and when there are new changesets on [your configured `baseBranch`](https://github.com/changesets/changesets/blob/main/docs/config-file-options.md#basebranch-git-branch-name), the PR will be updated. When you're ready, you can merge the pull request and you can either publish the packages to npm manually or setup the action to do it for you.
+
+There are also sub-actions hosted in this repository. Check out their respective READMEs for more details:
+
+- [pr-status](./pr-status/README.md): Generate changeset status in PRs.
+- [pr-comment](./pr-comment/README.md): Comment on PRs.
 
 ## Usage
 
 ### Inputs
 
-- publish - The command to use to build and publish packages
-- version - The command to update version, edit CHANGELOG, read and delete changesets. Default to `changeset version` if not provided
-- commit - The commit message to use. Default to `Version Packages`
-- title - The pull request title. Default to `Version Packages`
-- setupGitUser - Sets up the git user for commits as `"github-actions[bot]"`. Default to `true`
-- createGithubReleases - A boolean value to indicate whether to create Github releases after `publish` or not. Default to `true`
+- publish-script - The command to use to build and publish packages
+- version-script - The command to update version, edit CHANGELOG, read and delete changesets. Default to `changeset version` if not provided
+- commit-message - The commit message to use. Default to `Version Packages`
+- pr-title - The pull request title. Default to `Version Packages`
+- setup-git-user - Sets up the git user for commits as `"github-actions[bot]"`. Default to `true`
+- create-github-releases - A boolean value to indicate whether to create Github releases after `publish` or not. Default to `true`
+- push-git-tags - A boolean value to indicate whether to create git tags after `publish` or not. Default to `true`
+- commit-mode - Specifies the commit mode. Use `"git-cli"` to push changes using the Git CLI, or `"github-api"` to push changes via the GitHub API. When using `"github-api"`, all commits and tags are GPG-signed and attributed to the user or app who owns the `GITHUB_TOKEN`. Default to `git-cli`
 - cwd - Changes node's `process.cwd()` if the project is not located on the root. Default to `process.cwd()`
+- pr-draft - Controls draft PR behavior. Use `create` to create new version PRs as draft, or `always` to also convert existing version PRs back to draft when updating them. By default, version PRs are not forced into draft mode
+- github-token - Passes a custom GitHub token
 
 ### Outputs
 
-- published - A boolean value to indicate whether a publishing is happened or not
-- publishedPackages - A JSON array to present the published packages. The format is `[{"name": "@xx/xx", "version": "1.2.0"}, {"name": "@xx/xy", "version": "0.8.9"}]`
+- published - A boolean value to indicate whether a publishing has happened or not
+- published-packages - A JSON array to present the published packages. The format is `[{"name": "@xx/xx", "version": "1.2.0"}, {"name": "@xx/xy", "version": "0.8.9"}]`
+- staged-release-artifact-id - The exact artifact id for staged packages emitted by a configured or custom publish command
 
-### Example workflow:
+### Example workflow
 
 #### Without Publishing
 
@@ -41,20 +54,21 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
-      - name: Setup Node.js 16
-        uses: actions/setup-node@v3
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v6
+
+      - name: Setup Node.js 26
+        uses: actions/setup-node@v6
         with:
-          node-version: 16
+          node-version: 26
 
       - name: Install Dependencies
-        run: yarn
+        run: pnpm install --frozen-lockfile
 
       - name: Create Release Pull Request
-        uses: changesets/action@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        uses: changesets/action@v2
 ```
 
 #### With Publishing
@@ -77,24 +91,26 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
-      - name: Setup Node.js 16.x
-        uses: actions/setup-node@v3
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v6
+
+      - name: Setup Node.js 26
+        uses: actions/setup-node@v6
         with:
-          node-version: 16.x
+          node-version: 26
 
       - name: Install Dependencies
-        run: yarn
+        run: pnpm install --frozen-lockfile
 
       - name: Create Release Pull Request or Publish to npm
         id: changesets
-        uses: changesets/action@v1
+        uses: changesets/action@v2
         with:
           # This expects you to have a script called release which does a build for your packages and calls changeset publish
-          publish: yarn release
+          publish-script: pnpm release
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
 
       - name: Send a Slack notification if a publish happens
@@ -105,7 +121,7 @@ jobs:
 
 By default the GitHub Action creates a `.npmrc` file with the following content:
 
-```
+```txt
 //registry.npmjs.org/:_authToken=${process.env.NPM_TOKEN}
 ```
 
@@ -124,7 +140,7 @@ For example, you can add a step before running the Changesets GitHub Action:
 
 #### Custom Publishing
 
-If you want to hook into when publishing should occur but have your own publishing functionality you can utilize the `hasChangesets` output.
+If you want to hook into when publishing should occur but have your own publishing functionality, you can utilize the `hasChangesets` output.
 
 Note that you might need to account for things already being published in your script because a commit without any new changesets can always land on your base branch after a successful publish. In such a case you need to figure out on your own how to skip over the actual publishing logic or handle errors gracefully as most package registries won't allow you to publish over already published version.
 
@@ -142,26 +158,27 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
-      - name: Setup Node.js 16.x
-        uses: actions/setup-node@v3
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v6
+
+      - name: Setup Node.js 26
+        uses: actions/setup-node@v6
         with:
-          node-version: 16.x
+          node-version: 26
 
       - name: Install Dependencies
-        run: yarn
+        run: pnpm install --frozen-lockfile
 
       - name: Create Release Pull Request or Publish to npm
         id: changesets
-        uses: changesets/action@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        uses: changesets/action@v2
 
       - name: Publish
         if: steps.changesets.outputs.hasChangesets == 'false'
         # You can do something when a publish should happen.
-        run: yarn publish
+        run: pnpm publish
 ```
 
 #### With version script
@@ -186,23 +203,24 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
-      - name: Setup Node.js 16.x
-        uses: actions/setup-node@v3
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v6
+
+      - name: Setup Node.js 26
+        uses: actions/setup-node@v6
         with:
-          node-version: 16.x
+          node-version: 26
 
       - name: Install Dependencies
-        run: yarn
+        run: pnpm install --frozen-lockfile
 
       - name: Create Release Pull Request
-        uses: changesets/action@v1
+        uses: changesets/action@v2
         with:
           # this expects you to have a npm script called version that runs some logic and then calls `changeset version`.
-          version: yarn version
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          version-script: pnpm version
 ```
 
 #### With Yarn 2 / Plug'n'Play
@@ -210,8 +228,8 @@ jobs:
 If you are using [Yarn Plug'n'Play](https://yarnpkg.com/features/pnp), you should use a custom `version` command so that the action can resolve the `changeset` CLI:
 
 ```yaml
-- uses: changesets/action@v1
+- uses: changesets/action@v2
   with:
-    version: yarn changeset version
-    ...
+    version-script: yarn changeset version
+    # ...
 ```

__fixtures__/ignored-package/.changeset/config.json

@@ -1,4 +0,0 @@
-{
-  "$schema": "https://unpkg.com/@changesets/config@1.3.0/schema.json",
-  "ignore": ["ignored-package-pkg-a"]
-}

__fixtures__/ignored-package/package.json

@@ -1,8 +0,0 @@
-{
-  "private": true,
-  "name": "ignored-package",
-  "version": "1.0.0",
-  "workspaces": [
-    "packages/*"
-  ]
-}

__fixtures__/ignored-package/packages/pkg-a/package.json

@@ -1,7 +0,0 @@
-{
-  "name": "ignored-package-pkg-a",
-  "version": "1.0.0",
-  "dependencies": {
-    "ignored-package-pkg-b": "1.0.0"
-  }
-}

__fixtures__/ignored-package/packages/pkg-b/package.json

@@ -1,4 +0,0 @@
-{
-  "name": "ignored-package-pkg-b",
-  "version": "1.0.0"
-}

__fixtures__/simple-project/.changeset/config.json

@@ -1,3 +0,0 @@
-{
-  "$schema": "https://unpkg.com/@changesets/config@1.3.0/schema.json"
-}

__fixtures__/simple-project/package.json

@@ -1,8 +0,0 @@
-{
-  "private": true,
-  "name": "simple-project",
-  "version": "1.0.0",
-  "workspaces": [
-    "packages/*"
-  ]
-}

__fixtures__/simple-project/packages/pkg-a/package.json

@@ -1,7 +0,0 @@
-{
-  "name": "simple-project-pkg-a",
-  "version": "1.0.0",
-  "dependencies": {
-    "simple-project-pkg-b": "1.0.0"
-  }
-}

__fixtures__/simple-project/packages/pkg-b/package.json

@@ -1,4 +0,0 @@
-{
-  "name": "simple-project-pkg-b",
-  "version": "1.0.0"
-}

action.yml

@@ -1,42 +1,66 @@
 name: Changesets
 description: A GitHub action to automate releases with Changesets
 runs:
-  using: "node16"
+  using: "node24"
   main: "dist/index.js"
 inputs:
-  publish:
+  github-token:
+    description: "The GitHub token to use for authentication. Defaults to the GitHub-provided token."
+    required: false
+    default: ${{ github.token }}
+  publish-script:
     description: "The command to use to build and publish packages"
     required: false
-  version:
+  version-script:
     description: "The command to update version, edit CHANGELOG, read and delete changesets. Default to `changeset version` if not provided"
     required: false
-  cwd:
-    description: Sets the cwd for the node process. Default to `process.cwd()`
+  commit-message:
+    description: "The commit message. Default to `Version Packages`"
     required: false
-  commit:
-    description: |
-      The commit message. Default to `Version Packages`
+    default: "Version Packages"
+  pr-title:
+    description: "The pull request title. Default to `Version Packages`"
     required: false
-  title:
-    description: The pull request title. Default to `Version Packages`
+    default: "Version Packages"
+  pr-draft:
+    description: "Controls draft PR behavior. Use 'create' to create new version PRs as draft, or 'always' to also convert existing version PRs back to draft when updating them."
     required: false
-  setupGitUser:
-    description: Sets up the git user for commits as `"github-actions[bot]"`. Default to `true`
+  pr-base-branch:
+    description: "Sets the base branch of the PR. Defaults to `github.ref_name`."
+    required: false
+  create-github-releases:
+    description: "Whether to create Github releases after publish"
     required: false
     default: true
-  createGithubReleases:
-    description: "A boolean value to indicate whether to create Github releases after `publish` or not"
+  push-git-tags:
+    description: >
+      Whether to create git tags after publish. If `create-github-releases` is set to `true`,
+      this option will also always be `true`.
+    required: false
+    default: true
+  commit-mode:
+    description: >
+      An enum to specify the commit mode. Use "git-cli" to push changes using the Git CLI,
+      or "github-api" to push changes via the GitHub API. When using "github-api",
+      all commits and tags are signed using GitHub's GPG key and attributed to the user
+      or app who owns the GITHUB_TOKEN.
+    required: false
+    default: "git-cli"
+  setup-git-user:
+    description: Sets up the git user for commits as `"github-actions[bot]"`. Default to `true`
     required: false
     default: true
 outputs:
   published:
     description: A boolean value to indicate whether a publishing is happened or not
-  publishedPackages:
+  published-packages:
     description: >
       A JSON array to present the published packages. The format is `[{"name": "@xx/xx", "version": "1.2.0"}, {"name": "@xx/xy", "version": "0.8.9"}]`
-  hasChangesets:
+  staged-release-artifact-id:
+    description: Artifact id for a staged release handoff emitted by the publish script
+  has-changesets:
     description: A boolean about whether there were changesets. Useful if you want to create your own publishing functionality.
-  pullRequestNumber:
+  pr-number:
     description: The pull request number that was created or updated
 branding:
   icon: "package"

github-release/README.md

@@ -0,0 +1,13 @@
+# changesets/action/github-release
+
+Finalizes packages produced by staged publishing. Pass the exact
+`staged-release-artifact-id` output from `changesets/action/publish`.
+
+By default the action waits up to two minutes for every approved package
+version to become visible before creating any Git tag or GitHub Release.
+Private registries therefore need read authentication configured before this
+step. Set `verify-published: false` to skip that check.
+
+The handoff is bound to the repository, workflow run, and commit. Tags and
+releases are created idempotently; a tag that already points at another commit
+is rejected.

github-release/action.yml

@@ -0,0 +1,23 @@
+name: Changesets - GitHub Release
+description: Create Git tags and GitHub Releases after approving a staged publish
+runs:
+  using: node24
+  main: ../dist/github-release.js
+inputs:
+  github-token:
+    description: "The GitHub token to use for authentication. Defaults to the GitHub-provided token."
+    required: false
+    default: ${{ github.token }}
+  staged-release-artifact-id:
+    description: "The exact artifact id emitted by the publish action"
+    required: true
+  verify-published:
+    description: "Verify that every approved package is visible in its configured registry before creating tags and releases"
+    required: false
+    default: true
+outputs:
+  released-packages:
+    description: "A JSON array of packages finalized by this action"
+branding:
+  icon: package
+  color: blue

pack/README.md

@@ -0,0 +1,3 @@
+# changesets/action/pack
+
+TODO

pack/action.yml

@@ -0,0 +1,15 @@
+name: Changesets - Pack
+description: Pack publishable packages into tarballs
+runs:
+  using: node24
+  main: ../dist/pack.js
+inputs:
+  publish-plan-artifact-id:
+    description: "Artifact id for a publish plan generated by the select-mode subaction"
+    required: false
+outputs:
+  pack-dir-artifact-id:
+    description: "Artifact id for the packed output directory"
+branding:
+  icon: package
+  color: blue

package.json

@@ -1,59 +1,56 @@
 {
   "name": "@changesets/action",
-  "version": "1.4.2",
-  "main": "dist/index.js",
+  "version": "2.0.0-next.3",
+  "private": true,
   "license": "MIT",
-  "devDependencies": {
-    "@changesets/changelog-github": "^0.4.2",
-    "@changesets/cli": "^2.20.0",
-    "@changesets/write": "^0.1.6",
-    "fixturez": "^1.1.0",
-    "parcel": "^1.12.3",
-    "prettier": "^2.0.5",
-    "typescript": "^5.0.4"
-  },
+  "type": "module",
+  "main": "dist/index.js",
   "scripts": {
-    "build": "parcel build ./src/index.ts --no-source-maps --target=node --bundle-node-modules",
-    "test": "jest",
-    "test:watch": "yarn test --watch",
+    "build": "rolldown -c",
+    "test": "vitest",
+    "test:watch": "pnpm test --watch",
+    "typecheck": "tsc",
+    "format": "oxfmt --check",
+    "format:fix": "oxfmt",
     "changeset": "changeset",
-    "bump": "node ./scripts/bump.js",
-    "release": "node ./scripts/release.js"
-  },
-  "engines": {
-    "node": ">= 16"
+    "bump": "node --experimental-strip-types ./scripts/bump.ts",
+    "release": "node --experimental-strip-types ./scripts/release.ts",
+    "release:pr": "node --experimental-strip-types ./scripts/release-pr.ts"
   },
   "dependencies": {
-    "@actions/core": "^1.10.0",
-    "@actions/exec": "^1.1.1",
-    "@actions/github": "^5.1.1",
-    "@babel/core": "^7.13.10",
-    "@babel/preset-env": "^7.13.10",
-    "@babel/preset-typescript": "^7.13.0",
-    "@changesets/pre": "^1.0.9",
-    "@changesets/read": "^0.5.3",
-    "@manypkg/get-packages": "^1.1.3",
-    "@octokit/plugin-throttling": "5.1.1",
-    "@types/fs-extra": "^8.0.0",
-    "@types/jest": "^24.0.18",
-    "@types/node": "^12.7.1",
-    "@types/semver": "^6.0.2",
-    "babel-jest": "^24.9.0",
-    "fs-extra": "^8.1.0",
-    "husky": "^3.0.3",
-    "jest": "^24.9.0",
-    "mdast-util-to-string": "^1.0.6",
-    "remark-parse": "^7.0.1",
-    "remark-stringify": "^7.0.3",
-    "resolve-from": "^5.0.0",
-    "semver": "^6.3.0",
-    "unified": "^8.3.2"
+    "@actions/artifact": "^6.2.1",
+    "@actions/core": "^3.0.1",
+    "@actions/exec": "^3.0.0",
+    "@actions/github": "^9.1.1",
+    "@changesets/get-release-plan": "^5.0.0-next.7",
+    "@changesets/ghcommit": "^3.0.0-next.1",
+    "@changesets/git": "^4.0.0-next.6",
+    "@changesets/pre": "^3.0.0-next.6",
+    "@changesets/read": "^1.0.0-next.7",
+    "@manypkg/get-packages": "^3.1.0",
+    "@octokit/core": "^7.0.6",
+    "@octokit/plugin-throttling": "^11.0.3",
+    "human-id": "^4.1.3",
+    "markdown-table": "^3.0.4",
+    "semver": "^7.8.1",
+    "tinyexec": "^1.2.4"
   },
-  "husky": {
-    "hooks": {}
+  "devDependencies": {
+    "@changesets/changelog-github": "^1.0.0-next.6",
+    "@changesets/cli": "^3.0.0-next.8",
+    "@changesets/types": "^7.0.0-next.6",
+    "@changesets/write": "^1.0.0-next.6",
+    "@tsconfig/node24": "^24.0.4",
+    "@types/node": "^24.12.4",
+    "@types/semver": "^7.7.1",
+    "fs-fixture": "^2.13.0",
+    "oxfmt": "^0.48.0",
+    "rolldown": "^1.0.1",
+    "typescript": "^6.0.3",
+    "vitest": "^4.1.6"
   },
-  "prettier": {},
-  "resolutions": {
-    "**/@octokit/core": "4.2.0"
-  }
+  "engines": {
+    "node": ">=24"
+  },
+  "packageManager": "pnpm@11.1.1+sha512.d1fdf5f73c617b64fa1a56a81c3c8dfe0e966e33a6010aa256b517ae77be21d93e05affc0de1a83b0e4f29d569f68b446ae8f068cd7247c0bb3df0fb4d7bdf9a"
 }

pnpm-workspace.yaml

@@ -0,0 +1,29 @@
+blockExoticSubdeps: true
+dedupePeers: true
+dedupePeerDependents: true
+minimumReleaseAge: 10080
+minimumReleaseAgeExclude:
+  - "@changesets/apply-release-plan@8.0.0-next.7"
+  - "@changesets/assemble-release-plan@7.0.0-next.7"
+  - "@changesets/changelog-git@1.0.0-next.6"
+  - "@changesets/changelog-github@1.0.0-next.6"
+  - "@changesets/cli@3.0.0-next.8"
+  - "@changesets/config@4.0.0-next.6"
+  - "@changesets/get-dependents-graph@3.0.0-next.6"
+  - "@changesets/get-github-info@1.0.0-next.3"
+  - "@changesets/get-release-plan@5.0.0-next.7"
+  - "@changesets/ghcommit@3.0.0-next.1"
+  - "@changesets/git@4.0.0-next.6"
+  - "@changesets/parse@1.0.0-next.7"
+  - "@changesets/pre@3.0.0-next.6"
+  - "@changesets/read@1.0.0-next.7"
+  - "@changesets/should-skip-package@1.0.0-next.6"
+  - "@changesets/types@7.0.0-next.6"
+  - "@changesets/write@1.0.0-next.6"
+
+overrides:
+  lightningcss: "-" # we do not bundle any css
+  postcss: "-" # we do not bundle any css
+
+shellEmulator: true
+trustPolicy: no-downgrade

pr-comment/README.md

@@ -0,0 +1,52 @@
+# @changesets/action/pr-comment
+
+A simple GitHub Action to comment on PRs aimed to complement [`@changesets/action/pr-status`](../pr-status/README.md).
+
+This action is intentionally simple without advanced features. Check out other actions if so, such as [mshick/add-pr-comment](https://github.com/marketplace/actions/add-pr-comment) and [peter-evans/create-or-update-comment](https://github.com/marketplace/actions/create-or-update-comment).
+
+See the [action metadata](action.yml) for details on the inputs and outputs.
+
+## Example setup
+
+```yaml
+name: PR Comment
+
+on:
+  pull_request:
+
+jobs:
+  pr-comment:
+    runs-on: ubuntu-slim
+    permissions:
+      pull-requests: write # to create and update comments on PRs
+    steps:
+      - uses: changesets/action/pr-comment@v1
+        with:
+          body: Hello world!
+```
+
+When called repeatedly, the action will update the comment it created by default. If you use this action to create different types of comments, pass an `update-id` value to differentiate them.
+
+```yaml
+jobs:
+  pr-comment:
+    # ...
+    steps:
+      - uses: changesets/action/pr-comment@v1
+        with:
+          body: Hello world!
+          update-id: my-tag
+```
+
+If you want to always create new comments, pass an empty value to `update-id`.
+
+```yaml
+jobs:
+  pr-comment:
+    # ...
+    steps:
+      - uses: changesets/action/pr-comment@v1
+        with:
+          body: Hello world!
+          update-id: ""
+```

pr-comment/action.yml

@@ -0,0 +1,25 @@
+name: Changesets - PR Comment
+description: A simple GitHub Action to comment on PRs
+runs:
+  using: node24
+  main: ../dist/pr-comment.js
+inputs:
+  github-token:
+    description: "The GitHub token to use for authentication. Defaults to the GitHub-provided token."
+    required: false
+    default: ${{ github.token }}
+  body:
+    description: "The comment body to post on the PR."
+    required: true
+  update-id:
+    description: >
+      By default, the action will create and update a comment with this id. Pass a different id to
+      create and update a new comment, or pass an empty string to disable updating comments.
+    required: false
+    default: "changesets-action-pr-comment"
+outputs:
+  comment-id:
+    description: "The comment id of the comment that was created or updated."
+branding:
+  icon: message-circle
+  color: blue

pr-status/README.md

@@ -0,0 +1,71 @@
+# changesets/action/pr-status
+
+This action generates the changesets status in PRs, e.g. whether it has changeset files and which packages will be released if the PR is merged.
+
+It requires the repo to be checked out, and automatically fetches the PR head ref into a temporary detached worktree in order to infer the changed files and packages.
+
+See the [action metadata](action.yml) for details on the inputs and outputs.
+
+> [!CAUTION]
+> **This action uses `pull_request_target` by default to support PRs from forks.**
+>
+> **Do not run untrusted code** when using the `pull_request_target` event.
+>
+> The example below only **_checks out_** and **_reads_** code, and does not **_execute_** any code from the fork.
+>
+> Read more about the `pull_request_target` event in the [GitHub documentation](https://docs.github.com/en/actions/reference/workflows-and-actions/events-that-trigger-workflows#pull_request_target).
+
+You can also use the [`pull_request`](https://docs.github.com/en/actions/reference/workflows-and-actions/events-that-trigger-workflows#pull_request) event if you prefer to lock permissions down and not run for PRs from forks. Make sure to add an if check to prevent the action from failing in fork PRs:
+
+```yaml
+jobs:
+  pr-status:
+    if: github.event.pull_request.head.repo.full_name == github.repository
+    # ...
+```
+
+You can also use the [Changesets Bot](https://github.com/apps/changeset-bot) if you don't want an extra action in your repo, or are worried about the `pull_request_target` event.
+
+## Example setup
+
+```yaml
+# .github/workflows/comment-changesets-pr-status.yml
+name: Comment Changesets status in PRs
+
+on:
+  pull_request_target:
+
+permissions: {} # require explicitly stating all permissions in each job
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  pr-status:
+    runs-on: ubuntu-slim
+    permissions:
+      contents: read # to check out files in the repo
+    outputs:
+      comment-body: ${{ steps.pr-status.outputs.comment-body }}
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v6
+
+      - name: Generate status
+        id: pr-status
+        uses: changesets/action/pr-status@v1
+
+  pr-comment:
+    needs: pr-status
+    runs-on: ubuntu-slim
+    permissions:
+      pull-requests: write # to create and update comments on PRs
+    steps:
+      - name: Comment on PR
+        uses: changesets/action/pr-comment@v1
+        with:
+          body: ${{ needs.pr-status.outputs.comment-body }}
+```
+
+The workflow uses [`@changesets/action/pr-comment`](../pr-comment/README.md), which is a simple GitHub Action to comment on PRs.

pr-status/action.yml

@@ -0,0 +1,12 @@
+name: Changesets - PR Status
+description: Generate the changesets status in PRs
+runs:
+  using: node24
+  main: ../dist/pr-status.js
+inputs: {}
+outputs:
+  comment-body:
+    description: The generated comment body to present the changesets status in PRs.
+branding:
+  icon: package
+  color: blue

publish/README.md

@@ -0,0 +1,24 @@
+# changesets/action/publish
+
+Publishes packages with Changesets.
+
+Set the optional `stage` input to `true` or `false` to override
+`stagedPublishing` from the Changesets config. The input is tri-state: omitting
+it leaves the config in control. An explicit `stage` cannot be combined with a
+custom `script`; configure the script itself instead.
+
+When packages are staged, the action uploads a 30-day handoff and returns its
+exact id as `staged-release-artifact-id`. It also prints a topologically
+ordered approval command:
+
+```sh
+changeset stage approve <id...>
+```
+
+That command is only a convenience and uses the default registry. For custom
+or multiple registries, split the IDs into correctly scoped commands and pass
+`--registry` to each.
+
+After approval, pass the artifact id to
+`changesets/action/github-release` to verify publication and create Git tags
+and GitHub Releases.

publish/action.yml

@@ -0,0 +1,43 @@
+name: Changesets - Publish
+description: Publish packages to npm
+runs:
+  using: node24
+  main: ../dist/publish.js
+inputs:
+  github-token:
+    description: "The GitHub token to use for authentication. Defaults to the GitHub-provided token."
+    required: false
+    default: ${{ github.token }}
+  script:
+    description: "The command to use to publish packages"
+    required: false
+  stage:
+    description: >
+      Whether to use staged publishing. Omit to use the Changesets config,
+      set to true for --stage, or false for --no-stage. Cannot be combined
+      with a custom script.
+    required: false
+  pack-dir-artifact-id:
+    description: "Artifact id for packed publish output generated by the pack subaction"
+    required: false
+  create-github-releases:
+    description: "Whether to create Github releases after publish"
+    required: false
+    default: true
+  push-git-tags:
+    description: >
+      Whether to create git tags after publish. If `create-github-releases` is set to `true`,
+      this option will also always be `true`.
+    required: false
+    default: true
+outputs:
+  published:
+    description: "A boolean value to indicate whether a publishing has happened or not"
+  published-packages:
+    description: >
+      A JSON array to present the published packages. The format is `[{"name": "@xx/xx", "version": "1.2.0"}, {"name": "@xx/xy", "version": "0.8.9"}]`
+  staged-release-artifact-id:
+    description: "Artifact id for the staged release handoff"
+branding:
+  icon: package
+  color: blue

rolldown.config.js

@@ -0,0 +1,22 @@
+import { defineConfig } from "rolldown";
+
+export default defineConfig({
+  input: {
+    index: "src/index.ts",
+    pack: "src/pack/index.ts",
+    "pr-status": "src/pr-status/index.ts",
+    "pr-comment": "src/pr-comment/index.ts",
+    "select-mode": "src/select-mode/index.ts",
+    version: "src/version/index.ts",
+    publish: "src/publish/index.ts",
+    "github-release": "src/github-release/index.ts",
+  },
+  output: {
+    dir: "dist",
+    format: "esm",
+    cleanDir: true,
+    minify: true,
+    comments: false,
+  },
+  platform: "node",
+});

scripts/bump.js

@@ -1,19 +0,0 @@
-const fs = require("fs");
-const path = require("path");
-const { exec } = require("@actions/exec");
-
-process.chdir(path.join(__dirname, ".."));
-
-(async () => {
-  await exec("changeset", ["version"]);
-
-  const releaseLine = `v${require("../package.json").version.split(".")[0]}`;
-
-  const readmePath = path.join(__dirname, "..", "README.md");
-  const content = fs.readFileSync(readmePath, "utf8");
-  const updatedContent = content.replace(
-    /changesets\/action@[^\s]+/g,
-    `changesets/action@${releaseLine}`
-  );
-  fs.writeFileSync(readmePath, updatedContent);
-})();

scripts/bump.ts

@@ -0,0 +1,20 @@
+import fs from "node:fs";
+import path from "node:path";
+import { exec } from "@actions/exec";
+
+process.chdir(path.join(import.meta.dirname, ".."));
+
+await exec("changeset", ["version"]);
+
+// read after versioning to get the new version
+const pkgJson = (await import("../package.json", { with: { type: "json" } }))
+  .default;
+const releaseLine = `v${pkgJson.version.split(".")[0]}`;
+
+const readmePath = path.join(import.meta.dirname, "..", "README.md");
+const content = fs.readFileSync(readmePath, "utf8");
+const updatedContent = content.replace(
+  /changesets\/action@[^\s]+/g,
+  `changesets/action@${releaseLine}`,
+);
+fs.writeFileSync(readmePath, updatedContent);

scripts/release-pr.ts

@@ -0,0 +1,32 @@
+import { Buffer } from "node:buffer";
+import path from "node:path";
+import { exec } from "@actions/exec";
+import pkgJson from "../package.json" with { type: "json" };
+
+const tag = `v${pkgJson.version}`;
+const releaseLine = "pr-release";
+const githubToken = process.env.GITHUB_TOKEN;
+if (!githubToken) {
+  throw new Error("GITHUB_TOKEN is required");
+}
+const basic = Buffer.from(`x-access-token:${githubToken}`).toString("base64");
+const gitEnv = {
+  ...process.env,
+  GIT_CONFIG_COUNT: "1",
+  GIT_CONFIG_KEY_0: "http.https://github.com/.extraheader",
+  GIT_CONFIG_VALUE_0: `AUTHORIZATION: basic ${basic}`,
+};
+
+process.chdir(path.join(import.meta.dirname, ".."));
+
+await exec("git", ["checkout", "--detach"]);
+await exec("git", ["add", "--force", "dist"]);
+await exec("git", ["commit", "-m", tag]);
+
+await exec(
+  "git",
+  ["push", "--force", "origin", `HEAD:refs/heads/${releaseLine}`],
+  {
+    env: gitEnv,
+  },
+);

scripts/release.js

@@ -1,41 +0,0 @@
-const path = require("path");
-const { exec, getExecOutput } = require("@actions/exec");
-
-const { version } = require("../package.json");
-const tag = `v${version}`;
-const releaseLine = `v${version.split(".")[0]}`;
-
-process.chdir(path.join(__dirname, ".."));
-
-(async () => {
-  const { exitCode, stderr } = await getExecOutput(
-    `git`,
-    ["ls-remote", "--exit-code", "origin", "--tags", `refs/tags/${tag}`],
-    {
-      ignoreReturnCode: true,
-    }
-  );
-  if (exitCode === 0) {
-    console.log(
-      `Action is not being published because version ${tag} is already published`
-    );
-    return;
-  }
-  if (exitCode !== 2) {
-    throw new Error(`git ls-remote exited with ${exitCode}:\n${stderr}`);
-  }
-
-  await exec("git", ["checkout", "--detach"]);
-  await exec("git", ["add", "--force", "dist"]);
-  await exec("git", ["commit", "-m", tag]);
-
-  await exec("changeset", ["tag"]);
-
-  await exec("git", [
-    "push",
-    "--force",
-    "--follow-tags",
-    "origin",
-    `HEAD:refs/heads/${releaseLine}`,
-  ]);
-})();

scripts/release.ts

@@ -0,0 +1,47 @@
+import { Buffer } from "node:buffer";
+import path from "node:path";
+import { exec } from "@actions/exec";
+import pkgJson from "../package.json" with { type: "json" };
+
+const tag = `v${pkgJson.version}`;
+const releaseLine = `v${pkgJson.version.split(".")[0]}`;
+const isPrerelease = pkgJson.version.includes("-");
+const githubToken = process.env.GITHUB_TOKEN;
+if (!githubToken) {
+  throw new Error("GITHUB_TOKEN is required");
+}
+const basic = Buffer.from(`x-access-token:${githubToken}`).toString("base64");
+const gitEnv = {
+  ...process.env,
+  GIT_CONFIG_COUNT: "1",
+  GIT_CONFIG_KEY_0: "http.https://github.com/.extraheader",
+  GIT_CONFIG_VALUE_0: `AUTHORIZATION: basic ${basic}`,
+};
+
+process.chdir(path.join(import.meta.dirname, ".."));
+
+await exec("git", ["checkout", "--detach"]);
+await exec("git", ["add", "--force", "dist"]);
+await exec("git", ["commit", "-m", tag]);
+
+await exec("changeset", ["git-tag"]);
+
+if (isPrerelease) {
+  await exec("git", ["push", "origin", `refs/tags/${tag}`], {
+    env: gitEnv,
+  });
+} else {
+  await exec(
+    "git",
+    [
+      "push",
+      "--force",
+      "--follow-tags",
+      "origin",
+      `HEAD:refs/heads/${releaseLine}`,
+    ],
+    {
+      env: gitEnv,
+    },
+  );
+}

select-mode/README.md

@@ -0,0 +1,3 @@
+# changesets/action/select-mode
+
+TODO

select-mode/action.yml

@@ -0,0 +1,14 @@
+name: Changesets - Select Mode
+description: Whether to version or publish in the current repo state
+runs:
+  using: node24
+  main: ../dist/select-mode.js
+inputs: {}
+outputs:
+  mode:
+    description: "The mode to use for the current repo state: 'version', 'publish', or 'none'."
+  publish-plan-artifact-id:
+    description: "Artifact id for the generated publish plan when mode is `publish`"
+branding:
+  icon: package
+  color: blue

src/__snapshots__/run.test.ts.snap

@@ -1,30 +1,19 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
-exports[`version creates simple PR 1`] = `
-Array [
-  Object {
+exports[`version > creates a draft PR when prDraft is "create" 1`] = `
+[
+  {
     "base": "some-branch",
     "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
 
 
 # Releases
-## simple-project-pkg-a@1.1.0
+## changesets-dev-simple-project-pkg-a@1.1.0
 
 ### Minor Changes
 
--   Awesome feature
-
-### Patch Changes
-
--   Updated dependencies
-    -   simple-project-pkg-b@1.1.0
-
-## simple-project-pkg-b@1.1.0
-
-### Minor Changes
-
--   Awesome feature
-",
+- Awesome feature",
+    "draft": true,
     "head": "changeset-release/some-branch",
     "owner": "changesets",
     "repo": "action",
@@ -33,9 +22,41 @@ Array [
 ]
 `;
 
-exports[`version does not include any release information if a message with simplified release info exceeds size limit 1`] = `
-Array [
-  Object {
+exports[`version > creates simple PR 1`] = `
+[
+  {
+    "base": "some-branch",
+    "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
+
+
+# Releases
+## changesets-dev-simple-project-pkg-a@1.1.0
+
+### Minor Changes
+
+- Awesome feature
+
+### Patch Changes
+
+- Updated dependencies
+  - changesets-dev-simple-project-pkg-b@1.1.0
+## changesets-dev-simple-project-pkg-b@1.1.0
+
+### Minor Changes
+
+- Awesome feature",
+    "draft": false,
+    "head": "changeset-release/some-branch",
+    "owner": "changesets",
+    "repo": "action",
+    "title": "Version Packages",
+  },
+]
+`;
+
+exports[`version > does not include any release information if a message with simplified release info exceeds size limit 1`] = `
+[
+  {
     "base": "some-branch",
     "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
 
@@ -43,6 +64,7 @@ Array [
 # Releases
 
 > All release information have been omitted from this message, as the content exceeds the size limit.",
+    "draft": false,
     "head": "changeset-release/some-branch",
     "owner": "changesets",
     "repo": "action",
@@ -51,9 +73,9 @@ Array [
 ]
 `;
 
-exports[`version does not include changelog entries if full message exceeds size limit 1`] = `
-Array [
-  Object {
+exports[`version > does not include changelog entries if full message exceeds size limit 1`] = `
+[
+  {
     "base": "some-branch",
     "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
 
@@ -62,9 +84,10 @@ Array [
 
 > The changelog information of each package has been omitted from this message, as the content exceeds the size limit.
 
-## simple-project-pkg-a@1.1.0
+## changesets-dev-simple-project-pkg-a@1.1.0
 
 ",
+    "draft": false,
     "head": "changeset-release/some-branch",
     "owner": "changesets",
     "repo": "action",
@@ -73,20 +96,20 @@ Array [
 ]
 `;
 
-exports[`version doesn't include ignored package that got a dependency update in the PR body 1`] = `
-Array [
-  Object {
+exports[`version > doesn't include ignored package that got a dependency update in the PR body 1`] = `
+[
+  {
     "base": "some-branch",
     "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
 
 
 # Releases
-## ignored-package-pkg-b@1.1.0
+## changesets-dev-ignored-package-pkg-b@1.1.0
 
 ### Minor Changes
 
--   Awesome feature
-",
+- Awesome feature",
+    "draft": false,
     "head": "changeset-release/some-branch",
     "owner": "changesets",
     "repo": "action",
@@ -95,20 +118,20 @@ Array [
 ]
 `;
 
-exports[`version only includes bumped packages in the PR body 1`] = `
-Array [
-  Object {
+exports[`version > only includes bumped packages in the PR body 1`] = `
+[
+  {
     "base": "some-branch",
     "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
 
 
 # Releases
-## simple-project-pkg-a@1.1.0
+## changesets-dev-simple-project-pkg-a@1.1.0
 
 ### Minor Changes
 
--   Awesome feature
-",
+- Awesome feature",
+    "draft": false,
     "head": "changeset-release/some-branch",
     "owner": "changesets",
     "repo": "action",
@@ -116,3 +139,92 @@ Array [
   },
 ]
 `;
+
+exports[`version > updates an existing PR via GraphQL and converts it to draft when prDraft is "always" 1`] = `
+[
+  "
+      mutation UpdatePullRequest(
+        $pullRequestId: ID!
+        $title: String!
+        $body: String!
+      ) {
+        
+        convertPullRequestToDraft(
+          input: {
+            pullRequestId: $pullRequestId
+          }
+        ) {
+          pullRequest {
+            id
+          }
+        }
+
+        updatePullRequest(
+          input: {
+            pullRequestId: $pullRequestId
+            title: $title
+            body: $body
+            state: OPEN
+          }
+        ) {
+          pullRequest {
+            id
+          }
+        }
+      }
+    ",
+  {
+    "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
+
+
+# Releases
+## changesets-dev-simple-project-pkg-a@1.1.0
+
+### Minor Changes
+
+- Awesome feature",
+    "pullRequestId": "PR_kwDOA",
+    "title": "Version Packages",
+  },
+]
+`;
+
+exports[`version > updates an existing PR via GraphQL without converting it to draft when prDraft is "create" 1`] = `
+[
+  "
+      mutation UpdatePullRequest(
+        $pullRequestId: ID!
+        $title: String!
+        $body: String!
+      ) {
+        
+
+        updatePullRequest(
+          input: {
+            pullRequestId: $pullRequestId
+            title: $title
+            body: $body
+            state: OPEN
+          }
+        ) {
+          pullRequest {
+            id
+          }
+        }
+      }
+    ",
+  {
+    "body": "This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and publish to npm yourself or [setup this action to publish automatically](https://github.com/changesets/action#with-publishing). If you're not ready to do a release yet, that's fine, whenever you add more changesets to some-branch, this PR will be updated.
+
+
+# Releases
+## changesets-dev-simple-project-pkg-a@1.1.0
+
+### Minor Changes
+
+- Awesome feature",
+    "pullRequestId": "PR_kwDOA",
+    "title": "Version Packages",
+  },
+]
+`;

src/__snapshots__/utils.test.ts.snap

@@ -1,18 +1,18 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
 exports[`it sorts the things right 1`] = `
-Array [
-  Object {
+[
+  {
     "highestLevel": 3,
     "name": "c",
     "private": false,
   },
-  Object {
+  {
     "highestLevel": 1,
     "name": "b",
     "private": false,
   },
-  Object {
+  {
     "highestLevel": 3,
     "name": "a",
     "private": true,
@@ -23,23 +23,21 @@ Array [
 exports[`it works 1`] = `
 "### Major Changes
 
--   [2164a779](https://github.com/keystonejs/keystone-5/commit/2164a779):
+- [2164a779](https://github.com/keystonejs/keystone-5/commit/2164a779):
 
-    -   Replace jade with pug because Jade was renamed to Pug, and \`jade\` package is outdated
+  - Replace jade with pug because Jade was renamed to Pug, and \`jade\` package is outdated
 
 ### Patch Changes
 
--   [81dc0be5](https://github.com/keystonejs/keystone-5/commit/81dc0be5):
+- [81dc0be5](https://github.com/keystonejs/keystone-5/commit/81dc0be5):
 
-    -   Update dependencies
-"
+  - Update dependencies"
 `;
 
 exports[`it works 2`] = `
 "### Patch Changes
 
--   [19fe6c1b](https://github.com/keystonejs/keystone-5/commit/19fe6c1b):
+- [19fe6c1b](https://github.com/keystonejs/keystone-5/commit/19fe6c1b):
 
-    Move frontmatter in docs into comments
-"
+  Move frontmatter in docs into comments"
 `;

src/gitUtils.ts

@@ -1,63 +0,0 @@
-import { exec, getExecOutput } from "@actions/exec";
-
-export const setupUser = async () => {
-  await exec("git", [
-    "config",
-    "user.name",
-    `"github-actions[bot]"`,
-  ]);
-  await exec("git", [
-    "config",
-    "user.email",
-    `"github-actions[bot]@users.noreply.github.com"`,
-  ]);
-};
-
-export const pullBranch = async (branch: string) => {
-  await exec("git", ["pull", "origin", branch]);
-};
-
-export const push = async (
-  branch: string,
-  { force }: { force?: boolean } = {}
-) => {
-  await exec(
-    "git",
-    ["push", "origin", `HEAD:${branch}`, force && "--force"].filter<string>(
-      Boolean as any
-    )
-  );
-};
-
-export const pushTags = async () => {
-  await exec("git", ["push", "origin", "--tags"]);
-};
-
-export const switchToMaybeExistingBranch = async (branch: string) => {
-  let { stderr } = await getExecOutput("git", ["checkout", branch], {
-    ignoreReturnCode: true,
-  });
-  let isCreatingBranch = !stderr
-    .toString()
-    .includes(`Switched to a new branch '${branch}'`);
-  if (isCreatingBranch) {
-    await exec("git", ["checkout", "-b", branch]);
-  }
-};
-
-export const reset = async (
-  pathSpec: string,
-  mode: "hard" | "soft" | "mixed" = "hard"
-) => {
-  await exec("git", ["reset", `--${mode}`, pathSpec]);
-};
-
-export const commitAll = async (message: string) => {
-  await exec("git", ["add", "."]);
-  await exec("git", ["commit", "-m", message]);
-};
-
-export const checkIfClean = async (): Promise<boolean> => {
-  const { stdout } = await getExecOutput("git", ["status", "--porcelain"]);
-  return !stdout.length;
-};

src/github-release/index.ts

@@ -0,0 +1,46 @@
+import * as core from "@actions/core";
+import { GitHub } from "../github.ts";
+import {
+  downloadAndValidateStagedRelease,
+  finalizeStagedRelease,
+} from "../staged-release.ts";
+import { getOptionalBooleanInput, getRequiredInput } from "../utils.ts";
+
+try {
+  await main();
+} catch (error) {
+  core.setFailed((error as Error).message);
+}
+
+async function main() {
+  const cwd = process.cwd();
+  const github = new GitHub({
+    cwd,
+    githubToken: getRequiredInput("github-token"),
+    commitMode: "github-api",
+  });
+  const artifactId = Number(getRequiredInput("staged-release-artifact-id"));
+  const verify = getOptionalBooleanInput("verify-published") ?? true;
+  const { handoff, packagesByName } = await downloadAndValidateStagedRelease(
+    artifactId,
+    cwd,
+  );
+
+  await finalizeStagedRelease({
+    github,
+    handoff,
+    packagesByName,
+    cwd,
+    verify,
+  });
+
+  core.setOutput(
+    "released-packages",
+    JSON.stringify(
+      handoff.releases.map((release) => ({
+        name: release.packageName,
+        version: release.version,
+      })),
+    ),
+  );
+}

src/github.ts

@@ -0,0 +1,172 @@
+import { Buffer } from "node:buffer";
+import * as core from "@actions/core";
+import { exec, getExecOutput } from "@actions/exec";
+import { context } from "@actions/github";
+import { commitChangesSinceBase } from "@changesets/ghcommit";
+import { setupOctokit, type Octokit } from "./octokit.ts";
+
+export type CommitMode = "git-cli" | "github-api";
+
+type GitOptions = {
+  cwd: string;
+  env?: Record<string, string>;
+};
+
+const push = async (branch: string, options: GitOptions) => {
+  await exec("git", ["push", "origin", `HEAD:${branch}`, "--force"], options);
+};
+
+const switchToMaybeExistingBranch = async (
+  branch: string,
+  options: GitOptions,
+) => {
+  let { stderr } = await getExecOutput("git", ["checkout", branch], {
+    ignoreReturnCode: true,
+    ...options,
+  });
+  let isCreatingBranch = !stderr
+    .toString()
+    .includes(`Switched to a new branch '${branch}'`);
+  if (isCreatingBranch) {
+    await exec("git", ["checkout", "-b", branch], options);
+  }
+};
+
+const reset = async (pathSpec: string, options: GitOptions) => {
+  await exec("git", ["reset", `--hard`, pathSpec], options);
+};
+
+const commitAll = async (message: string, options: GitOptions) => {
+  await exec("git", ["add", "."], options);
+  await exec("git", ["commit", "-m", message], options);
+};
+
+const checkIfClean = async (options: GitOptions): Promise<boolean> => {
+  const { stdout } = await getExecOutput(
+    "git",
+    ["status", "--porcelain"],
+    options,
+  );
+  return !stdout.length;
+};
+
+export class GitHub {
+  readonly #githubToken: string;
+  readonly octokit: Octokit;
+  readonly cwd: string;
+  readonly commitMode: CommitMode;
+
+  constructor(options: {
+    githubToken: string;
+    cwd: string;
+    commitMode?: CommitMode;
+  }) {
+    this.#githubToken = options.githubToken;
+    this.cwd = options.cwd;
+    this.commitMode = options.commitMode ?? "git-cli";
+    this.octokit = setupOctokit(options.githubToken);
+  }
+
+  getToken() {
+    return this.#githubToken;
+  }
+
+  #getCliAuthEnv(): Record<string, string> {
+    const basic = Buffer.from(`x-access-token:${this.#githubToken}`).toString(
+      "base64",
+    );
+    const serverUrl = (
+      context.serverUrl ??
+      process.env.GITHUB_SERVER_URL ??
+      "https://github.com"
+    ).replace(/\/+$/, "");
+    const gitConfigCount = Number(process.env.GIT_CONFIG_COUNT ?? 0);
+    if (!Number.isInteger(gitConfigCount) || gitConfigCount < 0) {
+      throw new Error(
+        `Invalid GIT_CONFIG_COUNT value: ${process.env.GIT_CONFIG_COUNT}`,
+      );
+    }
+    return {
+      GIT_CONFIG_COUNT: String(gitConfigCount + 1),
+      [`GIT_CONFIG_KEY_${gitConfigCount}`]: `http.${serverUrl}/.extraheader`,
+      [`GIT_CONFIG_VALUE_${gitConfigCount}`]: `AUTHORIZATION: basic ${basic}`,
+    };
+  }
+
+  async setupUser() {
+    if (this.commitMode === "github-api") {
+      return;
+    }
+    await exec("git", ["config", "user.name", `"github-actions[bot]"`], {
+      cwd: this.cwd,
+    });
+    await exec(
+      "git",
+      [
+        "config",
+        "user.email",
+        `"41898282+github-actions[bot]@users.noreply.github.com"`,
+      ],
+      {
+        cwd: this.cwd,
+      },
+    );
+  }
+
+  async pushTag(tag: string) {
+    if (this.commitMode === "github-api") {
+      return this.octokit.rest.git
+        .createRef({
+          ...context.repo,
+          ref: `refs/tags/${tag}`,
+          sha: context.sha,
+        })
+        .catch((err) => {
+          // Assuming tag was manually pushed in custom publish script
+          core.warning(`Failed to create tag ${tag}: ${err.message}`);
+        });
+    }
+    await exec("git", ["push", "origin", tag], {
+      cwd: this.cwd,
+      env: {
+        ...process.env,
+        ...this.#getCliAuthEnv(),
+      } as Record<string, string>,
+    });
+  }
+
+  async prepareBranch(branch: string) {
+    if (this.commitMode === "github-api") {
+      // Preparing a new local branch is not necessary when using the API
+      return;
+    }
+    await switchToMaybeExistingBranch(branch, { cwd: this.cwd });
+    await reset(context.sha, { cwd: this.cwd });
+  }
+
+  async pushChanges({ branch, message }: { branch: string; message: string }) {
+    if (this.commitMode === "github-api") {
+      await commitChangesSinceBase({
+        octokit: this.octokit,
+        ...context.repo,
+        branch,
+        message,
+        base: {
+          commit: context.sha,
+        },
+        cwd: this.cwd,
+      });
+      return;
+    }
+    if (!(await checkIfClean({ cwd: this.cwd }))) {
+      await commitAll(message, { cwd: this.cwd });
+    }
+    await push(branch, {
+      cwd: this.cwd,
+      env: {
+        ...process.env,
+        ...this.#getCliAuthEnv(),
+      } as Record<string, string>,
+    });
+  }
+}

src/index.ts

@@ -1,121 +1,205 @@
+import fs from "node:fs/promises";
 import * as core from "@actions/core";
-import fs from "fs-extra";
-import * as gitUtils from "./gitUtils";
-import { runPublish, runVersion } from "./run";
-import readChangesetState from "./readChangesetState";
-
-const getOptionalInput = (name: string) => core.getInput(name) || undefined;
+import { GitHub } from "./github.ts";
+import readChangesetState from "./readChangesetState.ts";
+import { runPublish, runVersion } from "./run.ts";
+import { uploadStagedRelease } from "./staged-release.ts";
+import {
+  fileExists,
+  getOptionalInput,
+  getRequiredInput,
+  throwOnRenamedInputs,
+  validateChangesetsCliVersion,
+} from "./utils.ts";
 
 (async () => {
-  let githubToken = process.env.GITHUB_TOKEN;
+  // If the user needs to change the cwd, set `working-directory` in the step instead
+  const cwd = process.cwd();
+  await validateChangesetsCliVersion(cwd);
 
-  if (!githubToken) {
-    core.setFailed("Please add the GITHUB_TOKEN to the changesets action");
+  throwOnRenamedInputs({
+    publish: "publish-script",
+    version: "version-script",
+    commit: "commit-mesage",
+    title: "pr-title",
+    branch: "pr-base-branch",
+    prDraft: "pr-draft",
+    createGithubReleases: "create-github-releases",
+    commitMode: "commit-mode",
+    setupGitUser: "setup-git-user",
+  });
+
+  const githubToken = getRequiredInput("github-token");
+  if (process.env.GITHUB_TOKEN && process.env.GITHUB_TOKEN !== githubToken) {
+    throw new Error(
+      'The GITHUB_TOKEN environment variable is set and does not match the "github-token" input. ' +
+        'Please pass the custom GitHub token to the "github-token" input and ' +
+        "remove the GITHUB_TOKEN environment variable to avoid conflicts.",
+    );
+  }
+
+  const commitMode = getOptionalInput("commit-mode") ?? "git-cli";
+  const prDraft = getOptionalInput("pr-draft");
+  if (commitMode !== "git-cli" && commitMode !== "github-api") {
+    core.setFailed(`Invalid commit mode: ${commitMode}`);
     return;
   }
-
-  const inputCwd = core.getInput("cwd");
-  if (inputCwd) {
-    console.log("changing directory to the one given as the input");
-    process.chdir(inputCwd);
+  if (prDraft !== undefined && prDraft !== "always" && prDraft !== "create") {
+    core.setFailed(`Invalid pr-draft: ${prDraft}`);
+    return;
   }
+  const github = new GitHub({
+    cwd,
+    githubToken,
+    commitMode,
+  });
 
-  let setupGitUser = core.getBooleanInput("setupGitUser");
+  let setupGitUser = core.getBooleanInput("setup-git-user");
 
   if (setupGitUser) {
-    console.log("setting git user");
-    await gitUtils.setupUser();
+    core.info("setting git user");
+    await github.setupUser();
   }
 
-  console.log("setting GitHub credentials");
-  await fs.writeFile(
-    `${process.env.HOME}/.netrc`,
-    `machine github.com\nlogin github-actions[bot]\npassword ${githubToken}`
-  );
+  let { changesets } = await readChangesetState(cwd);
 
-  let { changesets } = await readChangesetState();
-
-  let publishScript = core.getInput("publish");
+  let publishScript = core.getInput("publish-script");
   let hasChangesets = changesets.length !== 0;
   const hasNonEmptyChangesets = changesets.some(
-    (changeset) => changeset.releases.length > 0
+    (changeset) => changeset.releases.length > 0,
   );
   let hasPublishScript = !!publishScript;
 
   core.setOutput("published", "false");
-  core.setOutput("publishedPackages", "[]");
-  core.setOutput("hasChangesets", String(hasChangesets));
+  core.setOutput("published-packages", "[]");
+  core.setOutput("has-changesets", String(hasChangesets));
 
   switch (true) {
     case !hasChangesets && !hasPublishScript:
-      console.log("No changesets found");
+      core.info(
+        "No changesets present or were removed by merging release PR. Not publishing because no publish script found.",
+      );
       return;
     case !hasChangesets && hasPublishScript: {
-      console.log(
-        "No changesets found, attempting to publish any unpublished packages to npm"
+      core.info(
+        "No changesets found. Attempting to publish any unpublished packages to npm",
       );
 
-      let userNpmrcPath = `${process.env.HOME}/.npmrc`;
-      if (fs.existsSync(userNpmrcPath)) {
-        console.log("Found existing user .npmrc file");
-        const userNpmrcContent = await fs.readFile(userNpmrcPath, "utf8");
-        const authLine = userNpmrcContent.split("\n").find((line) => {
-          // check based on https://github.com/npm/cli/blob/8f8f71e4dd5ee66b3b17888faad5a7bf6c657eed/test/lib/adduser.js#L103-L105
-          return /^\s*\/\/registry\.npmjs\.org\/:[_-]authToken=/i.test(line);
-        });
-        if (authLine) {
-          console.log(
-            "Found existing auth token for the npm registry in the user .npmrc file"
-          );
+      if (process.env.NPM_TOKEN) {
+        const userNpmrcPath = `${process.env.HOME}/.npmrc`;
+
+        if (await fileExists(userNpmrcPath)) {
+          core.info("Found existing user .npmrc file");
+          const userNpmrcContent = await fs.readFile(userNpmrcPath, "utf8");
+          const authLine = userNpmrcContent.split("\n").find((line) => {
+            // check based on https://github.com/npm/cli/blob/8f8f71e4dd5ee66b3b17888faad5a7bf6c657eed/test/lib/adduser.js#L103-L105
+            return /^\s*\/\/registry\.npmjs\.org\/:[_-]authToken=/i.test(line);
+          });
+          if (authLine) {
+            core.info(
+              "Found existing auth token for the npm registry in the user .npmrc file",
+            );
+          } else {
+            core.info(
+              "Didn't find existing auth token for the npm registry in the user .npmrc file, creating one",
+            );
+            await fs.appendFile(
+              userNpmrcPath,
+              `\n//registry.npmjs.org/:_authToken=${process.env.NPM_TOKEN}\n`,
+            );
+          }
         } else {
-          console.log(
-            "Didn't find existing auth token for the npm registry in the user .npmrc file, creating one"
+          core.info(
+            "No user .npmrc file found, creating one with NPM_TOKEN used as auth token",
           );
-          fs.appendFileSync(
+          await fs.writeFile(
             userNpmrcPath,
-            `\n//registry.npmjs.org/:_authToken=${process.env.NPM_TOKEN}\n`
+            `//registry.npmjs.org/:_authToken=${process.env.NPM_TOKEN}\n`,
           );
         }
+      } else if (
+        process.env.ACTIONS_ID_TOKEN_REQUEST_TOKEN &&
+        process.env.ACTIONS_ID_TOKEN_REQUEST_URL
+      ) {
+        core.info(
+          "No NPM_TOKEN found, but OIDC is available - using npm trusted publishing",
+        );
       } else {
-        console.log("No user .npmrc file found, creating one");
-        fs.writeFileSync(
-          userNpmrcPath,
-          `//registry.npmjs.org/:_authToken=${process.env.NPM_TOKEN}\n`
+        core.info(
+          "No NPM_TOKEN or OIDC available - assuming npm is already authenticated",
         );
       }
 
+      const createGithubReleases = core.getBooleanInput(
+        "create-github-releases",
+      );
+      const pushGitTags = core.getBooleanInput("push-git-tags");
+      if (createGithubReleases && !pushGitTags) {
+        throw new Error(
+          "The input 'create-github-releases' is set to true, but 'push-git-tags' is set to false. " +
+            "Creating GitHub releases requires pushing git tags. Please set 'push-git-tags' to true " +
+            "or set 'create-github-releases' to false.",
+        );
+      }
       const result = await runPublish({
         script: publishScript,
-        githubToken,
-        createGithubReleases: core.getBooleanInput("createGithubReleases"),
+        github,
+        createGithubReleases,
+        pushGitTags,
+        cwd,
       });
 
+      if (result.stagedPackages?.length) {
+        const artifactId = await uploadStagedRelease(
+          result.stagedPackages,
+          result.exitCode === 0 ? "approve" : "reject",
+        );
+        core.setOutput("staged-release-artifact-id", String(artifactId));
+      }
+
       if (result.published) {
         core.setOutput("published", "true");
         core.setOutput(
-          "publishedPackages",
-          JSON.stringify(result.publishedPackages)
+          "published-packages",
+          JSON.stringify(result.publishedPackages),
         );
       }
+
+      if (result.exitCode !== 0) {
+        core.error(
+          `Publish command exited with code ${result.exitCode}${
+            result.published
+              ? `, but some packages were published: ${result.publishedPackages
+                  .map((p) => `${p.name}@${p.version}`)
+                  .join(", ")}`
+              : ""
+          }`,
+        );
+        process.exit(result.exitCode);
+      }
       return;
     }
     case hasChangesets && !hasNonEmptyChangesets:
-      console.log("All changesets are empty; not creating PR");
+      core.info("All changesets are empty; not creating PR");
       return;
-    case hasChangesets:
+    case hasChangesets: {
       const { pullRequestNumber } = await runVersion({
-        script: getOptionalInput("version"),
-        githubToken,
-        prTitle: getOptionalInput("title"),
-        commitMessage: getOptionalInput("commit"),
+        script: getOptionalInput("version-script"),
+        github,
+        cwd,
+        prTitle: getOptionalInput("pr-title"),
+        commitMessage: getOptionalInput("commit-message"),
         hasPublishScript,
+        prDraft,
+        branch: getOptionalInput("pr-base-branch"),
       });
 
-      core.setOutput("pullRequestNumber", String(pullRequestNumber));
+      core.setOutput("pr-number", String(pullRequestNumber));
 
       return;
+    }
   }
 })().catch((err) => {
-  console.error(err);
+  core.error(err);
   core.setFailed(err.message);
 });

src/octokit.ts

@@ -0,0 +1,41 @@
+import * as core from "@actions/core";
+import { getOctokit } from "@actions/github";
+import { throttling } from "@octokit/plugin-throttling";
+
+export const setupOctokit = (githubToken: string) => {
+  return getOctokit(
+    githubToken,
+    {
+      throttle: {
+        onRateLimit: (retryAfter, options: any, octokit, retryCount) => {
+          core.warning(
+            `Request quota exhausted for request ${options.method} ${options.url}`,
+          );
+
+          if (retryCount <= 2) {
+            core.info(`Retrying after ${retryAfter} seconds!`);
+            return true;
+          }
+        },
+        onSecondaryRateLimit: (
+          retryAfter,
+          options: any,
+          octokit,
+          retryCount,
+        ) => {
+          core.warning(
+            `SecondaryRateLimit detected for request ${options.method} ${options.url}`,
+          );
+
+          if (retryCount <= 2) {
+            core.info(`Retrying after ${retryAfter} seconds!`);
+            return true;
+          }
+        },
+      },
+    },
+    throttling,
+  );
+};
+
+export type Octokit = ReturnType<typeof setupOctokit>;

src/pack/index.ts

@@ -0,0 +1,89 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import artifact from "@actions/artifact";
+import * as core from "@actions/core";
+import {
+  downloadArtifact,
+  execChangesetsCli,
+  getOptionalInput,
+  validateChangesetsCliVersion,
+} from "../utils.ts";
+
+try {
+  await main();
+} catch (err) {
+  core.setFailed((err as Error).message);
+}
+
+async function main() {
+  // If the user needs to change the cwd, set `working-directory` in the step instead
+  const cwd = process.cwd();
+  await validateChangesetsCliVersion(cwd);
+
+  const publishPlanArtifactId = getOptionalInput("publish-plan-artifact-id");
+
+  const tmpDir = process.env.RUNNER_TEMP ?? (await fs.realpath(os.tmpdir()));
+  const outDir = path.join(tmpDir, `changeset-pack-${Date.now()}`);
+
+  await pack(cwd, {
+    outDir,
+    publishPlanPath: publishPlanArtifactId
+      ? await downloadPublishPlanArtifact(tmpDir, Number(publishPlanArtifactId))
+      : undefined,
+  });
+
+  const packDirArtifact = await artifact.uploadArtifact(
+    `changeset-pack-${Date.now()}`,
+    await getFiles(outDir),
+    outDir,
+    {
+      retentionDays: 30,
+    },
+  );
+  if (packDirArtifact.id === undefined) {
+    throw new Error("Packed artifact upload did not return an artifact id");
+  }
+  core.setOutput("pack-dir-artifact-id", String(packDirArtifact.id));
+}
+
+async function pack(
+  cwd: string,
+  args: {
+    outDir: string;
+    publishPlanPath?: string;
+  },
+) {
+  const cliArgs = ["pack", "--out-dir", args.outDir];
+  if (args.publishPlanPath) {
+    cliArgs.push("--from-publish-plan", args.publishPlanPath);
+  }
+
+  await execChangesetsCli(cliArgs, {
+    cwd,
+    env: process.env,
+  });
+}
+
+async function downloadPublishPlanArtifact(tmpDir: string, artifactId: number) {
+  const downloadPath = await downloadArtifact(
+    tmpDir,
+    artifactId,
+    "changeset-publish-plan",
+  );
+  return path.join(downloadPath, "publish-plan.json");
+}
+
+async function getFiles(dir: string): Promise<string[]> {
+  const entries = await fs.readdir(dir, { withFileTypes: true });
+  const files = await Promise.all(
+    entries.map(async (entry) => {
+      const entryPath = path.join(dir, entry.name);
+      if (entry.isDirectory()) {
+        return getFiles(entryPath);
+      }
+      return [entryPath];
+    }),
+  );
+  return files.flat();
+}

src/pr-comment/index.ts

@@ -0,0 +1,78 @@
+import * as core from "@actions/core";
+import * as github from "@actions/github";
+import { getOptionalInput, getRequiredInput } from "../utils.ts";
+
+type Octokit = ReturnType<typeof github.getOctokit>;
+type CreateCommentParams = NonNullable<
+  Parameters<Octokit["rest"]["issues"]["createComment"]>[0]
+>;
+type UpdateCommentParams = NonNullable<
+  Parameters<Octokit["rest"]["issues"]["updateComment"]>[0]
+>;
+
+try {
+  await main();
+} catch (err) {
+  core.setFailed((err as Error).message);
+}
+
+async function main() {
+  const context = github.context.payload.pull_request;
+  if (!context) {
+    throw new Error(
+      "This action should only be run on `pull_request_target` or `pull_request` events",
+    );
+  }
+
+  const githubToken = getRequiredInput("github-token");
+  const body = getRequiredInput("body");
+  const updateId = getOptionalInput("update-id");
+
+  const commentMarker = updateId ? getCommentMarker(updateId) : null;
+  const commentBody = commentMarker ? `${commentMarker}\n\n${body}` : body;
+  const commentParam: CreateCommentParams | UpdateCommentParams = {
+    repo: context.base.repo.name,
+    owner: context.base.repo.owner.login,
+    issue_number: context.number,
+    body: commentBody,
+  };
+
+  const octokit = github.getOctokit(githubToken);
+
+  let existingCommentId: number | undefined;
+  if (commentMarker) {
+    core.info("Checking for existing comment...");
+    existingCommentId = await octokit.rest.issues
+      .listComments({
+        repo: context.base.repo.name,
+        owner: context.base.repo.owner.login,
+        issue_number: context.number,
+      })
+      .then((res) => {
+        const comment = res.data.find((c) => c.body?.includes(commentMarker));
+        return comment?.id;
+      });
+  }
+
+  if (existingCommentId) {
+    core.info(`Updating existing comment (id: ${existingCommentId})...`);
+    await octokit.rest.issues.updateComment({
+      ...commentParam,
+      comment_id: existingCommentId,
+    });
+    core.setOutput("comment-id", existingCommentId);
+  } else {
+    core.info("Creating new comment...");
+    const result = await octokit.rest.issues.createComment(commentParam);
+    core.setOutput("comment-id", result.data.id);
+  }
+
+  core.info("Done!");
+}
+
+function getCommentMarker(updateId: string) {
+  const prefix = "changesets-action-pr-comment";
+  return prefix === updateId
+    ? `<!-- ${prefix} -->`
+    : `<!-- ${prefix}:${updateId} -->`;
+}

src/pr-status/index.ts

@@ -0,0 +1,23 @@
+import * as core from "@actions/core";
+import * as github from "@actions/github";
+import { getCommentMessage } from "./message.ts";
+
+try {
+  await main();
+} catch (err) {
+  core.setFailed((err as Error).message);
+}
+
+async function main() {
+  const context = github.context.payload.pull_request;
+  if (!context) {
+    throw new Error(
+      "This action should only be run on `pull_request_target` or `pull_request` events",
+    );
+  }
+
+  core.info("Creating comment message...");
+  const commentBody = await getCommentMessage(context);
+  core.setOutput("comment-body", commentBody);
+  core.info("Done!");
+}

src/pr-status/message.ts

@@ -0,0 +1,120 @@
+import * as github from "@actions/github";
+import { getReleasePlan } from "@changesets/get-release-plan";
+import type {
+  ComprehensiveRelease,
+  ReleasePlan,
+  VersionType,
+} from "@changesets/types";
+import { markdownTable } from "markdown-table";
+import {
+  getNewChangesetTemplateContent,
+  getNewChangesetUrl,
+} from "./template.ts";
+import { getPullRequestWorktree } from "./worktree.ts";
+
+type PullRequestContext = NonNullable<
+  typeof github.context.payload.pull_request
+>;
+
+export async function getCommentMessage(context: PullRequestContext) {
+  await using worktree = await getPullRequestWorktree(context);
+
+  const releasePlan = await getReleasePlan(worktree.cwd, worktree.baseRef);
+  const templateContent = await getNewChangesetTemplateContent(
+    worktree.cwd,
+    worktree.baseRef,
+    context.title,
+  );
+
+  const newChangesetUrl = getNewChangesetUrl(
+    context.head.repo.html_url,
+    context.head.ref,
+    templateContent,
+  );
+
+  if (releasePlan.changesets.length > 0) {
+    return getApproveMessage(context.head.sha, newChangesetUrl, releasePlan);
+  } else {
+    return getAbsentMessage(context.head.sha, newChangesetUrl, releasePlan);
+  }
+}
+
+function getApproveMessage(
+  commitSha: string,
+  newChangesetUrl: string,
+  releasePlan: ReleasePlan,
+) {
+  return `\
+### 🦋 Changeset detected
+
+Latest commit: ${commitSha}
+
+**The changes in this PR will be included in the next version bump.**
+
+${getReleasePlanMessage(releasePlan)}
+
+Not sure what this means? [Click here to learn what changesets are](https://github.com/changesets/changesets/blob/main/docs/adding-a-changeset.md).
+
+[Click here if you're a maintainer who wants to add another changeset to this PR](${newChangesetUrl})`;
+}
+
+function getAbsentMessage(
+  commitSha: string,
+  newChangesetUrl: string,
+  releasePlan: ReleasePlan,
+) {
+  return `\
+### ⚠️ No Changeset found
+
+Latest commit: ${commitSha}
+
+Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. **If these changes should result in a version bump, you need to add a changeset.**
+
+${getReleasePlanMessage(releasePlan)}
+
+[Click here to learn what changesets are, and how to add one](https://github.com/changesets/changesets/blob/main/docs/adding-a-changeset.md).
+
+[Click here if you're a maintainer who wants to add a changeset to this PR](${newChangesetUrl})`;
+}
+
+function getReleasePlanMessage(releasePlan: ReleasePlan) {
+  const publishableReleases = releasePlan.releases.filter(
+    (r) => r.type !== "none",
+  ) as (ComprehensiveRelease & { type: Exclude<VersionType, "none"> })[];
+
+  const table = markdownTable([
+    ["Name", "Type"],
+    ...publishableReleases.map((release) => {
+      return [
+        release.name,
+        {
+          major: "Major",
+          minor: "Minor",
+          patch: "Patch",
+        }[release.type],
+      ];
+    }),
+  ]);
+
+  let summary = "This PR includes ";
+  if (releasePlan.changesets.length === 0) {
+    summary += "no changesets";
+  } else {
+    summary += `changesets to release ${publishableReleases.length} package`;
+    if (publishableReleases.length !== 1) {
+      summary += "s";
+    }
+  }
+
+  return `\
+<details>
+<summary>${summary}</summary>
+
+${
+  publishableReleases.length > 0
+    ? table
+    : "When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types"
+}
+
+</details>`;
+}

src/pr-status/template.ts

@@ -0,0 +1,30 @@
+import { getChangedPackagesSinceRef } from "@changesets/git";
+import { humanId } from "human-id";
+
+export function getNewChangesetUrl(
+  headRepoUrl: string,
+  headRef: string,
+  templateContent: string,
+) {
+  const fileName = humanId({ separator: "-", capitalize: false });
+  return `${headRepoUrl}/new/${headRef}?filename=.changeset/${fileName}.md&value=${encodeURIComponent(templateContent)}`;
+}
+
+export async function getNewChangesetTemplateContent(
+  cwd: string,
+  baseRef: string,
+  prTitle: string,
+) {
+  const changedPackages = await getChangedPackagesSinceRef({
+    cwd,
+    ref: baseRef,
+  });
+
+  return `\
+---
+${changedPackages.map((p) => `"${p.packageJson.name}": patch`).join("\n")}
+---
+
+${prTitle}
+`;
+}

src/pr-status/worktree.test.ts

@@ -0,0 +1,149 @@
+import { pathToFileURL } from "node:url";
+import type * as github from "@actions/github";
+import { getReleasePlan } from "@changesets/get-release-plan";
+import { createFixture } from "fs-fixture";
+import { exec } from "tinyexec";
+import { describe, expect, it } from "vitest";
+import { getPullRequestWorktree } from "./worktree.ts";
+
+type PullRequestContext = NonNullable<
+  typeof github.context.payload.pull_request
+>;
+
+async function git(cwd: string, args: string[]) {
+  const output = await exec("git", args, {
+    nodeOptions: { cwd },
+    throwOnError: true,
+  });
+  return output.stdout.trim();
+}
+
+describe("getPullRequestWorktree", () => {
+  it("fetches a PR branch into a detached worktree and keeps the main checkout untouched", async () => {
+    // Local source repo
+    await using sourceRepoFixture = await createFixture({
+      ".changeset/config.json": JSON.stringify({}),
+      "package.json": JSON.stringify({
+        name: "repo",
+        private: true,
+        workspaces: ["packages/*"],
+      }),
+      "package-lock.json": "",
+      "packages/pkg-a/package.json": JSON.stringify({
+        name: "pkg-a",
+        version: "1.0.0",
+      }),
+    });
+    const sourceRepo = sourceRepoFixture.path;
+    await git(sourceRepo, ["init", "-b", "main"]);
+    await git(sourceRepo, ["config", "user.name", "Test User"]);
+    await git(sourceRepo, ["config", "user.email", "test@example.com"]);
+    await git(sourceRepo, ["add", "."]);
+    await git(sourceRepo, ["commit", "-m", "base"]);
+
+    // Simulate remote bare git server
+    await using originBareFixture = await createFixture();
+    const originBare = originBareFixture.path;
+    await git(originBare, ["clone", "--bare", sourceRepo, originBare]);
+
+    // Simulate checkout PR in github action
+    await using checkoutRepoFixture = await createFixture();
+    const checkoutRepo = checkoutRepoFixture.path;
+    await git(checkoutRepo, [
+      "clone",
+      "--depth",
+      "1",
+      "--branch",
+      "main",
+      pathToFileURL(originBare).toString(),
+      checkoutRepo,
+    ]);
+
+    // Simulate remote fork bare git server
+    await using forkBareFixture = await createFixture();
+    const forkBare = forkBareFixture.path;
+    await git(forkBare, ["clone", "--bare", originBare, forkBare]);
+
+    await using forkRepoFixture = await createFixture();
+    const forkRepo = forkRepoFixture.path;
+    await git(forkRepo, [
+      "clone",
+      "--depth",
+      "1",
+      "--branch",
+      "main",
+      pathToFileURL(forkBare).toString(),
+      forkRepo,
+    ]);
+    await git(forkRepo, ["config", "user.name", "Test User"]);
+    await git(forkRepo, ["config", "user.email", "test@example.com"]);
+    await git(forkRepo, ["checkout", "-b", "feature"]);
+
+    await forkRepoFixture.mkdir("packages/pkg-a/src");
+    await forkRepoFixture.writeFile(
+      "packages/pkg-a/src/index.ts",
+      "export const value = 1;\n",
+    );
+    await forkRepoFixture.writeFile(
+      ".changeset/add-pkg-a.md",
+      `\
+---
+"pkg-a": patch
+---
+
+Add pkg-a
+`,
+    );
+
+    await git(forkRepo, ["add", "."]);
+    await git(forkRepo, ["commit", "-m", "feature"]);
+    await git(forkRepo, ["push", "origin", "feature"]);
+
+    // Run tests
+    const originalHead = await git(checkoutRepo, ["rev-parse", "HEAD"]);
+    const context = {
+      number: 123,
+      base: {
+        ref: "main",
+        repo: {
+          clone_url: pathToFileURL(originBare).toString(),
+        },
+      },
+      head: {
+        ref: "feature",
+        repo: {
+          clone_url: pathToFileURL(forkBare).toString(),
+        },
+      },
+    };
+
+    await using worktree = await getPullRequestWorktree(
+      context satisfies PullRequestContext as PullRequestContext,
+      checkoutRepo,
+    );
+
+    const releasePlan = await getReleasePlan(worktree.cwd, worktree.baseRef);
+
+    const currentHead = await git(worktree.cwd, ["rev-parse", "HEAD"]);
+    expect(currentHead).not.toBe(originalHead);
+
+    const currentBranch = await git(worktree.cwd, ["branch", "--show-current"]);
+    expect(currentBranch).toBe("");
+
+    const releases = releasePlan.releases.map((release) => ({
+      name: release.name,
+      type: release.type,
+      newVersion: release.newVersion,
+    }));
+    expect(releases).toEqual([
+      {
+        name: "pkg-a",
+        type: "patch",
+        newVersion: "1.0.1",
+      },
+    ]);
+
+    expect(await git(checkoutRepo, ["rev-parse", "HEAD"])).toBe(originalHead);
+    expect(await git(checkoutRepo, ["branch", "--show-current"])).toBe("main");
+  });
+});

src/pr-status/worktree.ts

@@ -0,0 +1,165 @@
+import { randomUUID } from "node:crypto";
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import type * as github from "@actions/github";
+import { isRepoShallow } from "@changesets/git";
+import { exec } from "tinyexec";
+
+type PullRequestContext = NonNullable<
+  typeof github.context.payload.pull_request
+>;
+
+type WorktreeInfo = {
+  baseRef: string;
+  cwd: string;
+};
+
+type TinyexecOptions = Parameters<typeof exec>[2];
+
+function git(cwd: string, args: string[], opts: TinyexecOptions = {}) {
+  return exec("git", args, {
+    nodeOptions: { cwd, ...opts.nodeOptions },
+    throwOnError: true,
+    ...opts,
+  });
+}
+
+interface Ref {
+  fetchSource: string;
+  local: string;
+  remote: string;
+}
+
+function getRefs(context: PullRequestContext): Record<"base" | "head", Ref> {
+  const suffix = `${context.number}-${randomUUID()}`;
+  return {
+    base: {
+      fetchSource: "origin",
+      local: `refs/changesets-action-pr-status/base/${suffix}`,
+      remote: `refs/heads/${context.base.ref}`,
+    },
+    head: {
+      fetchSource: context.head.repo.clone_url,
+      local: `refs/changesets-action-pr-status/head/${suffix}`,
+      remote: `refs/heads/${context.head.ref}`,
+    },
+  };
+}
+
+async function deepenRef(cwd: string, ref: Ref, deepenBy: number) {
+  await git(cwd, [
+    "fetch",
+    "--no-tags",
+    `--deepen=${deepenBy}`,
+    ref.fetchSource,
+    `${ref.remote}:${ref.local}`,
+  ]);
+}
+
+async function ensureMergeBase(args: {
+  cwd: string;
+  refs: ReturnType<typeof getRefs>;
+  deepenBy?: number;
+}) {
+  const { cwd, refs, deepenBy = 50 } = args;
+
+  while (true) {
+    const mergeBase = await git(cwd, ["merge-base", refs.base.local, "HEAD"], {
+      throwOnError: false,
+    });
+
+    if (mergeBase.exitCode === 0) {
+      return mergeBase.stdout.trim();
+    }
+
+    if (!(await isRepoShallow({ cwd }))) {
+      throw new Error(
+        `Failed to find merge base between "${refs.base.local}" and HEAD, and the repository is no longer shallow.`,
+      );
+    }
+
+    await deepenRef(cwd, refs.base, deepenBy);
+    await deepenRef(cwd, refs.head, deepenBy);
+  }
+}
+
+async function mkdtemp(prefix: string) {
+  const dir = await fs.mkdtemp(path.join(os.tmpdir(), prefix));
+
+  return {
+    dir,
+    async [Symbol.asyncDispose]() {
+      await fs.rm(dir, { recursive: true, force: true });
+    },
+  };
+}
+
+async function tempRef(cwd: string, ref: Ref) {
+  await git(cwd, [
+    "fetch",
+    "--no-tags",
+    "--depth=1",
+    ref.fetchSource,
+    `${ref.remote}:${ref.local}`,
+  ]);
+  return {
+    async [Symbol.asyncDispose]() {
+      await git(cwd, ["update-ref", "-d", ref.local], { throwOnError: false });
+    },
+  };
+}
+
+async function tempWorktree(cwd: string, dir: string, ref: Ref) {
+  await git(cwd, ["worktree", "add", "--detach", dir, ref.local]);
+
+  return {
+    async [Symbol.asyncDispose]() {
+      await git(cwd, ["worktree", "remove", "--force", dir], {
+        throwOnError: false,
+      });
+    },
+  };
+}
+
+type WithAsyncDispose<T> = T & {
+  [Symbol.asyncDispose](): Promise<void>;
+};
+
+function moveDisposable<T extends object>(
+  stack: AsyncDisposableStack,
+  value: T,
+): WithAsyncDispose<T> {
+  const moved = stack.move();
+  return Object.assign(value, {
+    async [Symbol.asyncDispose]() {
+      await moved.disposeAsync();
+    },
+  });
+}
+
+export async function getPullRequestWorktree(
+  context: PullRequestContext,
+  cwd: string = process.cwd(),
+): Promise<WithAsyncDispose<WorktreeInfo>> {
+  await using stack = new AsyncDisposableStack();
+  const worktreeDir = stack.use(
+    await mkdtemp("changesets-action-pr-status-"),
+  ).dir;
+
+  const refs = getRefs(context);
+
+  stack.use(await tempRef(cwd, refs.base));
+  stack.use(await tempRef(cwd, refs.head));
+  stack.use(await tempWorktree(cwd, worktreeDir, refs.head));
+
+  await ensureMergeBase({
+    cwd: worktreeDir,
+    refs,
+  });
+
+  return moveDisposable(stack, {
+    baseRef: refs.base.local,
+    cwd: worktreeDir,
+  });
+}

src/publish/index.ts

@@ -0,0 +1,94 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import * as core from "@actions/core";
+import { GitHub } from "../github.ts";
+import { runPublish } from "../run.ts";
+import { uploadStagedRelease } from "../staged-release.ts";
+import {
+  downloadArtifact,
+  getOptionalBooleanInput,
+  getOptionalInput,
+  getRequiredInput,
+  validateChangesetsCliVersion,
+} from "../utils.ts";
+import { assertValidStageInput } from "./options.ts";
+
+try {
+  await main();
+} catch (err) {
+  core.setFailed((err as Error).message);
+}
+
+async function main() {
+  // If the user needs to change the cwd, set `working-directory` in the step instead
+  const cwd = process.cwd();
+  await validateChangesetsCliVersion(cwd);
+
+  const githubToken = getRequiredInput("github-token");
+  const script = getOptionalInput("script");
+  const stage = getOptionalBooleanInput("stage");
+  const packDirArtifactId = getOptionalInput("pack-dir-artifact-id");
+  const createGithubReleases = core.getBooleanInput("create-github-releases");
+  const pushGitTags = core.getBooleanInput("push-git-tags");
+
+  assertValidStageInput(stage, script);
+
+  if (createGithubReleases && !pushGitTags) {
+    throw new Error(
+      "The input 'create-github-releases' is set to true, but 'push-git-tags' is set to false. " +
+        "Creating GitHub releases requires pushing git tags. Please set 'push-git-tags' to true " +
+        "or set 'create-github-releases' to false.",
+    );
+  }
+
+  // NOTE: Always use API mode here as publish does not need a commit-mode.
+  const github = new GitHub({ cwd, githubToken, commitMode: "github-api" });
+
+  const fromPackDir = packDirArtifactId
+    ? await downloadArtifact(
+        process.env.RUNNER_TEMP ?? (await fs.realpath(os.tmpdir())),
+        Number(packDirArtifactId),
+        "changeset-pack",
+      )
+    : undefined;
+
+  const result = await runPublish({
+    script,
+    stage,
+    github,
+    createGithubReleases,
+    pushGitTags,
+    cwd,
+    fromPackDir,
+  });
+
+  if (result.stagedPackages?.length) {
+    const artifactId = await uploadStagedRelease(
+      result.stagedPackages,
+      result.exitCode === 0 ? "approve" : "reject",
+    );
+    core.setOutput("staged-release-artifact-id", String(artifactId));
+  }
+
+  if (result.published) {
+    core.setOutput("published", "true");
+    core.setOutput(
+      "published-packages",
+      JSON.stringify(result.publishedPackages),
+    );
+  } else {
+    core.setOutput("published", "false");
+  }
+
+  if (result.exitCode !== 0) {
+    throw new Error(
+      `Publish command exited with code ${result.exitCode}${
+        result.published
+          ? `, but some packages were published: ${result.publishedPackages
+              .map((p) => `${p.name}@${p.version}`)
+              .join(", ")}`
+          : ""
+      }`,
+    );
+  }
+}

src/publish/options.test.ts

@@ -0,0 +1,16 @@
+import { describe, expect, it } from "vitest";
+import { assertValidStageInput } from "./options.ts";
+
+describe("publish stage input", () => {
+  it("rejects an explicit stage override with a custom script", () => {
+    expect(() => assertValidStageInput(false, "pnpm release")).toThrow(
+      "cannot be combined with a custom 'script'",
+    );
+  });
+
+  it("allows an omitted stage input with a custom script", () => {
+    expect(() =>
+      assertValidStageInput(undefined, "pnpm release"),
+    ).not.toThrow();
+  });
+});

src/publish/options.ts

@@ -0,0 +1,10 @@
+export function assertValidStageInput(
+  stage: boolean | undefined,
+  script: string | undefined,
+) {
+  if (stage !== undefined && script) {
+    throw new Error(
+      "The 'stage' input cannot be combined with a custom 'script'. Configure staged publishing inside the script instead.",
+    );
+  }
+}

src/readChangesetState.ts

@@ -1,6 +1,6 @@
-import { PreState, NewChangeset } from "@changesets/types";
 import { readPreState } from "@changesets/pre";
-import readChangesets from "@changesets/read";
+import { readChangesets } from "@changesets/read";
+import type { PreState, NewChangeset } from "@changesets/types";
 
 export type ChangesetState = {
   preState: PreState | undefined;
@@ -8,20 +8,22 @@ export type ChangesetState = {
 };
 
 export default async function readChangesetState(
-  cwd: string = process.cwd()
+  cwd: string = process.cwd(),
 ): Promise<ChangesetState> {
   let preState = await readPreState(cwd);
-  let isInPreMode = preState !== undefined && preState.mode === "pre";
-
   let changesets = await readChangesets(cwd);
 
-  if (isInPreMode) {
+  if (preState !== undefined && preState.mode === "pre") {
     let changesetsToFilter = new Set(preState.changesets);
-    changesets = changesets.filter((x) => !changesetsToFilter.has(x.id));
+
+    return {
+      preState,
+      changesets: changesets.filter((x) => !changesetsToFilter.has(x.id)),
+    };
   }
 
   return {
-    preState: isInPreMode ? preState : undefined,
+    preState: undefined,
     changesets,
   };
 }

src/run.test.ts

@@ -1,12 +1,13 @@
-import fixturez from "fixturez";
-import * as github from "@actions/github";
-import fs from "fs-extra";
-import path from "path";
-import writeChangeset from "@changesets/write";
-import { Changeset } from "@changesets/types";
-import { runVersion } from "./run";
+import path from "node:path";
+import * as core from "@actions/core";
+import type { Changeset } from "@changesets/types";
+import { writeChangeset } from "@changesets/write";
+import { createFixture } from "fs-fixture";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { GitHub } from "./github.ts";
+import { readChangesetsOutput, runPublish, runVersion } from "./run.ts";
 
-jest.mock("@actions/github", () => ({
+vi.mock("@actions/github", () => ({
   context: {
     repo: {
       owner: "changesets",
@@ -15,49 +16,250 @@ jest.mock("@actions/github", () => ({
     ref: "refs/heads/some-branch",
     sha: "xeac7",
   },
-  getOctokit: jest.fn(),
+  getOctokit: () => ({
+    rest: mockedGithubMethods,
+    graphql: mockedGraphql,
+  }),
 }));
-jest.mock("./gitUtils");
+vi.mock("@actions/core", { spy: true });
+const mockedWarning = vi.mocked(core.warning);
+vi.mock("@changesets/ghcommit");
 
 let mockedGithubMethods = {
-  search: {
-    issuesAndPullRequests: jest.fn(),
-  },
   pulls: {
-    create: jest.fn(),
+    create: vi.fn(),
+    list: vi.fn(),
   },
   repos: {
-    createRelease: jest.fn(),
+    createRelease: vi.fn(),
   },
 };
-(github.getOctokit as any).mockImplementation(() => ({
-  rest: mockedGithubMethods,
-}));
+let mockedGraphql = vi.fn();
 
-let f = fixturez(__dirname);
+const nodeModulesDir = path.join(import.meta.dirname, "..", "node_modules");
+
+function createSimpleProjectFixture() {
+  return createFixture({
+    node_modules: (api) => api.symlink(nodeModulesDir),
+    ".changeset/config.json": JSON.stringify({}),
+    "packages/pkg-a/package.json": JSON.stringify({
+      name: "changesets-dev-simple-project-pkg-a",
+      version: "1.0.0",
+      dependencies: {
+        "changesets-dev-simple-project-pkg-b": "1.0.0",
+      },
+    }),
+    "packages/pkg-b/package.json": JSON.stringify({
+      name: "changesets-dev-simple-project-pkg-b",
+      version: "1.0.0",
+    }),
+    "package.json": JSON.stringify({
+      name: "simple-project",
+      version: "1.0.0",
+      private: true,
+      workspaces: ["packages/*"],
+    }),
+    "package-lock.json": "",
+  });
+}
+
+function createIgnoredPackageFixture() {
+  return createFixture({
+    node_modules: (api) => api.symlink(nodeModulesDir),
+    ".changeset/config.json": JSON.stringify({
+      ignore: ["changesets-dev-ignored-package-pkg-a"],
+    }),
+    "packages/pkg-a/package.json": JSON.stringify({
+      name: "changesets-dev-ignored-package-pkg-a",
+      version: "1.0.0",
+      dependencies: {
+        "changesets-dev-ignored-package-pkg-b": "1.0.0",
+      },
+    }),
+    "packages/pkg-b/package.json": JSON.stringify({
+      name: "changesets-dev-ignored-package-pkg-b",
+      version: "1.0.0",
+    }),
+    "package.json": JSON.stringify({
+      name: "ignored-package",
+      version: "1.0.0",
+      private: true,
+      workspaces: ["packages/*"],
+    }),
+    "package-lock.json": "",
+  });
+}
 
-const linkNodeModules = async (cwd: string) => {
-  await fs.symlink(
-    path.join(__dirname, "..", "node_modules"),
-    path.join(cwd, "node_modules")
-  );
-};
 const writeChangesets = (changesets: Changeset[], cwd: string) => {
   return Promise.all(changesets.map((commit) => writeChangeset(commit, cwd)));
 };
 
+const createGithub = (cwd: string) =>
+  new GitHub({
+    cwd,
+    githubToken: "@@GITHUB_TOKEN",
+    commitMode: "github-api",
+  });
+
 beforeEach(() => {
-  jest.clearAllMocks();
+  vi.clearAllMocks();
+});
+
+afterEach(() => {
+  vi.unstubAllEnvs();
+});
+
+describe("publish", () => {
+  it("parses staged publish events in emitted order", async () => {
+    await using fixture = await createFixture({
+      "changesets-output.ndjson": [
+        JSON.stringify({
+          type: "npm-stage",
+          packageName: "pkg-b",
+          version: "1.0.0",
+          tag: "latest",
+          gitTag: "pkg-b@1.0.0",
+          stageId: "stage-b",
+        }),
+        JSON.stringify({ type: "unknown" }),
+        JSON.stringify({
+          type: "npm-stage",
+          packageName: "pkg-a",
+          version: "1.0.0",
+          tag: "latest",
+          gitTag: "pkg-a@1.0.0",
+          stageId: "stage-a",
+        }),
+      ].join("\n"),
+    });
+
+    await expect(
+      readChangesetsOutput(path.join(fixture.path, "changesets-output.ndjson")),
+    ).resolves.toMatchObject([
+      { type: "npm-stage", stageId: "stage-b" },
+      { type: "npm-stage", stageId: "stage-a" },
+    ]);
+  });
+
+  it("returns staged packages from a custom publish script", async () => {
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
+    vi.stubEnv("RUNNER_TEMP", cwd);
+    await fixture.writeFile(
+      "write-output.cjs",
+      `require("node:fs").writeFileSync(process.env.CHANGESETS_OUTPUT, JSON.stringify({
+        type: "npm-stage",
+        packageName: "changesets-dev-simple-project-pkg-b",
+        version: "1.0.0",
+        tag: "latest",
+        gitTag: "changesets-dev-simple-project-pkg-b@1.0.0",
+        stageId: "stage-b"
+      }) + "\\n")`,
+    );
+
+    const result = await runPublish({
+      script: "node write-output.cjs",
+      github: createGithub(cwd),
+      createGithubReleases: false,
+      pushGitTags: false,
+      cwd,
+    });
+
+    expect(result).toMatchObject({
+      published: false,
+      exitCode: 0,
+      stagedPackages: [{ type: "npm-stage", stageId: "stage-b" }],
+    });
+    expect(mockedGithubMethods.repos.createRelease).not.toHaveBeenCalled();
+  });
+
+  it("passes an explicit stage override to the built-in CLI", async () => {
+    await using fixture = await createFixture({
+      "node_modules/@changesets/cli/package.json": JSON.stringify({
+        name: "@changesets/cli",
+        type: "module",
+      }),
+      "node_modules/@changesets/cli/bin.js": `
+        import fs from "node:fs";
+        fs.writeFileSync("args.json", JSON.stringify(process.argv.slice(2)));
+        fs.writeFileSync(process.env.CHANGESETS_OUTPUT, "");
+      `,
+      "package.json": JSON.stringify({
+        name: "simple-project",
+        version: "1.0.0",
+      }),
+      "package-lock.json": "",
+    });
+    const cwd = fixture.path;
+    vi.stubEnv("RUNNER_TEMP", cwd);
+
+    await runPublish({
+      stage: false,
+      github: createGithub(cwd),
+      createGithubReleases: false,
+      pushGitTags: false,
+      cwd,
+    });
+
+    await expect(
+      fixture.readFile("args.json", "utf8").then(JSON.parse),
+    ).resolves.toEqual(["publish", "--no-stage"]);
+  });
+
+  it("warns when a custom publish script does not create the output file", async () => {
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
+    vi.stubEnv("RUNNER_TEMP", cwd);
+
+    const result = await runPublish({
+      script: 'node -e "void 0"',
+      github: createGithub(cwd),
+      createGithubReleases: true,
+      pushGitTags: true,
+      cwd,
+    });
+
+    expect(result).toEqual({ published: false, exitCode: 0 });
+    expect(mockedWarning).toHaveBeenCalledWith(
+      expect.stringContaining(
+        "GitHub releases and git tags cannot be created without this output",
+      ),
+    );
+  });
+
+  it("throws when the built-in publish command does not create the output file", async () => {
+    await using fixture = await createFixture({
+      "node_modules/@changesets/cli/package.json": JSON.stringify({
+        name: "@changesets/cli",
+        type: "module",
+      }),
+      "node_modules/@changesets/cli/bin.js": "",
+      "package.json": JSON.stringify({
+        name: "simple-project",
+        version: "1.0.0",
+      }),
+      "package-lock.json": "",
+    });
+    const cwd = fixture.path;
+    vi.stubEnv("RUNNER_TEMP", cwd);
+
+    await expect(
+      runPublish({
+        github: createGithub(cwd),
+        createGithubReleases: true,
+        pushGitTags: true,
+        cwd,
+      }),
+    ).rejects.toThrow("Failed to read changesets output at");
+  });
 });
 
 describe("version", () => {
   it("creates simple PR", async () => {
-    let cwd = f.copy("simple-project");
-    linkNodeModules(cwd);
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
 
-    mockedGithubMethods.search.issuesAndPullRequests.mockImplementationOnce(
-      () => ({ data: { items: [] } })
-    );
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({ data: [] }));
 
     mockedGithubMethods.pulls.create.mockImplementationOnce(() => ({
       data: { number: 123 },
@@ -68,35 +270,33 @@ describe("version", () => {
         {
           releases: [
             {
-              name: "simple-project-pkg-a",
+              name: "changesets-dev-simple-project-pkg-a",
               type: "minor",
             },
             {
-              name: "simple-project-pkg-b",
+              name: "changesets-dev-simple-project-pkg-b",
               type: "minor",
             },
           ],
           summary: "Awesome feature",
         },
       ],
-      cwd
+      cwd,
     );
 
     await runVersion({
-      githubToken: "@@GITHUB_TOKEN",
+      github: createGithub(cwd),
       cwd,
     });
 
     expect(mockedGithubMethods.pulls.create.mock.calls[0]).toMatchSnapshot();
   });
 
-  it("only includes bumped packages in the PR body", async () => {
-    let cwd = f.copy("simple-project");
-    linkNodeModules(cwd);
+  it('creates a draft PR when prDraft is "create"', async () => {
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
 
-    mockedGithubMethods.search.issuesAndPullRequests.mockImplementationOnce(
-      () => ({ data: { items: [] } })
-    );
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({ data: [] }));
 
     mockedGithubMethods.pulls.create.mockImplementationOnce(() => ({
       data: { number: 123 },
@@ -107,18 +307,52 @@ describe("version", () => {
         {
           releases: [
             {
-              name: "simple-project-pkg-a",
+              name: "changesets-dev-simple-project-pkg-a",
               type: "minor",
             },
           ],
           summary: "Awesome feature",
         },
       ],
-      cwd
+      cwd,
     );
 
     await runVersion({
-      githubToken: "@@GITHUB_TOKEN",
+      github: createGithub(cwd),
+      cwd,
+      prDraft: "create",
+    });
+
+    expect(mockedGithubMethods.pulls.create.mock.calls[0]).toMatchSnapshot();
+  });
+
+  it("only includes bumped packages in the PR body", async () => {
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
+
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({ data: [] }));
+
+    mockedGithubMethods.pulls.create.mockImplementationOnce(() => ({
+      data: { number: 123 },
+    }));
+
+    await writeChangesets(
+      [
+        {
+          releases: [
+            {
+              name: "changesets-dev-simple-project-pkg-a",
+              type: "minor",
+            },
+          ],
+          summary: "Awesome feature",
+        },
+      ],
+      cwd,
+    );
+
+    await runVersion({
+      github: createGithub(cwd),
       cwd,
     });
 
@@ -126,12 +360,10 @@ describe("version", () => {
   });
 
   it("doesn't include ignored package that got a dependency update in the PR body", async () => {
-    let cwd = f.copy("ignored-package");
-    linkNodeModules(cwd);
+    await using fixture = await createIgnoredPackageFixture();
+    const cwd = fixture.path;
 
-    mockedGithubMethods.search.issuesAndPullRequests.mockImplementationOnce(
-      () => ({ data: { items: [] } })
-    );
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({ data: [] }));
 
     mockedGithubMethods.pulls.create.mockImplementationOnce(() => ({
       data: { number: 123 },
@@ -142,18 +374,18 @@ describe("version", () => {
         {
           releases: [
             {
-              name: "ignored-package-pkg-b",
+              name: "changesets-dev-ignored-package-pkg-b",
               type: "minor",
             },
           ],
           summary: "Awesome feature",
         },
       ],
-      cwd
+      cwd,
     );
 
     await runVersion({
-      githubToken: "@@GITHUB_TOKEN",
+      github: createGithub(cwd),
       cwd,
     });
 
@@ -161,12 +393,10 @@ describe("version", () => {
   });
 
   it("does not include changelog entries if full message exceeds size limit", async () => {
-    let cwd = f.copy("simple-project");
-    linkNodeModules(cwd);
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
 
-    mockedGithubMethods.search.issuesAndPullRequests.mockImplementationOnce(
-      () => ({ data: { items: [] } })
-    );
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({ data: [] }));
 
     mockedGithubMethods.pulls.create.mockImplementationOnce(() => ({
       data: { number: 123 },
@@ -177,7 +407,7 @@ describe("version", () => {
         {
           releases: [
             {
-              name: "simple-project-pkg-a",
+              name: "changesets-dev-simple-project-pkg-a",
               type: "minor",
             },
           ],
@@ -204,28 +434,26 @@ fluminis divesque vulnere aquis parce lapsis rabie si visa fulmineis.
 `,
         },
       ],
-      cwd
+      cwd,
     );
 
     await runVersion({
-      githubToken: "@@GITHUB_TOKEN",
+      github: createGithub(cwd),
       cwd,
       prBodyMaxCharacters: 1000,
     });
 
     expect(mockedGithubMethods.pulls.create.mock.calls[0]).toMatchSnapshot();
     expect(mockedGithubMethods.pulls.create.mock.calls[0][0].body).toMatch(
-      /The changelog information of each package has been omitted from this message/
+      /The changelog information of each package has been omitted from this message/,
     );
   });
 
   it("does not include any release information if a message with simplified release info exceeds size limit", async () => {
-    let cwd = f.copy("simple-project");
-    linkNodeModules(cwd);
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
 
-    mockedGithubMethods.search.issuesAndPullRequests.mockImplementationOnce(
-      () => ({ data: { items: [] } })
-    );
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({ data: [] }));
 
     mockedGithubMethods.pulls.create.mockImplementationOnce(() => ({
       data: { number: 123 },
@@ -236,7 +464,7 @@ fluminis divesque vulnere aquis parce lapsis rabie si visa fulmineis.
         {
           releases: [
             {
-              name: "simple-project-pkg-a",
+              name: "changesets-dev-simple-project-pkg-a",
               type: "minor",
             },
           ],
@@ -263,18 +491,82 @@ fluminis divesque vulnere aquis parce lapsis rabie si visa fulmineis.
 `,
         },
       ],
-      cwd
+      cwd,
     );
 
     await runVersion({
-      githubToken: "@@GITHUB_TOKEN",
+      github: createGithub(cwd),
       cwd,
       prBodyMaxCharacters: 500,
     });
 
     expect(mockedGithubMethods.pulls.create.mock.calls[0]).toMatchSnapshot();
     expect(mockedGithubMethods.pulls.create.mock.calls[0][0].body).toMatch(
-      /All release information have been omitted from this message, as the content exceeds the size limit/
+      /All release information have been omitted from this message, as the content exceeds the size limit/,
     );
   });
+
+  it('updates an existing PR via GraphQL without converting it to draft when prDraft is "create"', async () => {
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
+
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({
+      data: [{ number: 123, node_id: "PR_kwDOA" }],
+    }));
+
+    await writeChangesets(
+      [
+        {
+          releases: [
+            {
+              name: "changesets-dev-simple-project-pkg-a",
+              type: "minor",
+            },
+          ],
+          summary: "Awesome feature",
+        },
+      ],
+      cwd,
+    );
+
+    await runVersion({
+      github: createGithub(cwd),
+      cwd,
+      prDraft: "create",
+    });
+
+    expect(mockedGraphql.mock.calls[0]).toMatchSnapshot();
+  });
+
+  it('updates an existing PR via GraphQL and converts it to draft when prDraft is "always"', async () => {
+    await using fixture = await createSimpleProjectFixture();
+    const cwd = fixture.path;
+
+    mockedGithubMethods.pulls.list.mockImplementationOnce(() => ({
+      data: [{ number: 123, node_id: "PR_kwDOA" }],
+    }));
+
+    await writeChangesets(
+      [
+        {
+          releases: [
+            {
+              name: "changesets-dev-simple-project-pkg-a",
+              type: "minor",
+            },
+          ],
+          summary: "Awesome feature",
+        },
+      ],
+      cwd,
+    );
+
+    await runVersion({
+      github: createGithub(cwd),
+      cwd,
+      prDraft: "always",
+    });
+
+    expect(mockedGraphql.mock.calls[0]).toMatchSnapshot();
+  });
 });

src/run.ts

@@ -1,23 +1,29 @@
-import { exec, getExecOutput } from "@actions/exec";
-import { GitHub, getOctokitOptions } from "@actions/github/lib/utils";
-import * as github from "@actions/github";
-import fs from "fs-extra";
-import { getPackages, Package } from "@manypkg/get-packages";
-import path from "path";
-import * as semver from "semver";
-import { PreState } from "@changesets/types";
+import { randomUUID } from "node:crypto";
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import * as core from "@actions/core";
 import {
-  getChangelogEntry,
+  exec,
+  getExecOutput,
+  type ExecOptions,
+  type ExecOutput,
+} from "@actions/exec";
+import { context } from "@actions/github";
+import type { PreState } from "@changesets/types";
+import { type Package, getPackages } from "@manypkg/get-packages";
+import type { GitHub } from "./github.ts";
+import type { Octokit } from "./octokit.ts";
+import readChangesetState from "./readChangesetState.ts";
+import {
+  execChangesetsCli,
   getChangedPackages,
-  sortTheThings,
+  getChangelogEntry,
+  getExecOutputChangesetsCli,
   getVersionsByDirectory,
-} from "./utils";
-import * as gitUtils from "./gitUtils";
-import readChangesetState from "./readChangesetState";
-import resolveFrom from "resolve-from";
-import { throttling } from "@octokit/plugin-throttling";
-// temporary workaround for https://github.com/octokit/plugin-throttling.js/pull/590
-import type {} from "@octokit/plugin-throttling/dist-types/types.d";
+  isErrorWithCode,
+  sortTheThings,
+} from "./utils.ts";
 
 // GitHub Issues/PRs messages have a max size limit on the
 // message body payload.
@@ -25,190 +31,283 @@ import type {} from "@octokit/plugin-throttling/dist-types/types.d";
 // To avoid that, we ensure to cap the message to 60k chars.
 const MAX_CHARACTERS_PER_MESSAGE = 60000;
 
-const createRelease = async (
-  octokit: ReturnType<typeof github.getOctokit>,
-  { pkg, tagName }: { pkg: Package; tagName: string }
+export const createRelease = async (
+  octokit: Octokit,
+  { pkg, tagName }: { pkg: Package; tagName: string },
 ) => {
+  let changelog;
   try {
-    let changelogFileName = path.join(pkg.dir, "CHANGELOG.md");
-
-    let changelog = await fs.readFile(changelogFileName, "utf8");
-
-    let changelogEntry = getChangelogEntry(changelog, pkg.packageJson.version);
-    if (!changelogEntry) {
-      // we can find a changelog but not the entry for this version
-      // if this is true, something has probably gone wrong
-      throw new Error(
-        `Could not find changelog entry for ${pkg.packageJson.name}@${pkg.packageJson.version}`
-      );
-    }
-
-    await octokit.rest.repos.createRelease({
-      name: tagName,
-      tag_name: tagName,
-      body: changelogEntry.content,
-      prerelease: pkg.packageJson.version.includes("-"),
-      ...github.context.repo,
-    });
+    changelog = await fs.readFile(path.join(pkg.dir, "CHANGELOG.md"), "utf8");
   } catch (err) {
-    // if we can't find a changelog, the user has probably disabled changelogs
-    if (err.code !== "ENOENT") {
-      throw err;
+    if (isErrorWithCode(err, "ENOENT")) {
+      // if we can't find a changelog, the user has probably disabled changelogs
+      return;
     }
+    throw err;
   }
+  let changelogEntry = getChangelogEntry(changelog, pkg.packageJson.version);
+  if (!changelogEntry) {
+    // we can find a changelog but not the entry for this version
+    // if this is true, something has probably gone wrong
+    throw new Error(
+      `Could not find changelog entry for ${pkg.packageJson.name}@${pkg.packageJson.version}`,
+    );
+  }
+
+  await octokit.rest.repos.createRelease({
+    name: tagName,
+    tag_name: tagName,
+    body: changelogEntry.content,
+    prerelease: pkg.packageJson.version.includes("-"),
+    ...context.repo,
+  });
 };
 
 type PublishOptions = {
-  script: string;
-  githubToken: string;
+  script?: string;
+  fromPackDir?: string;
+  stage?: boolean;
   createGithubReleases: boolean;
-  cwd?: string;
+  pushGitTags: boolean;
+  github: GitHub;
+  cwd: string;
 };
 
 type PublishedPackage = { name: string; version: string };
+export type ChangesetsOutputEvent =
+  | {
+      type: "git-tag";
+      tag: string;
+      packageName: string;
+    }
+  | {
+      type: "npm-stage";
+      packageName: string;
+      version: string;
+      tag: string;
+      gitTag: string;
+      stageId: string;
+    };
+
+export type NpmStageEvent = Extract<
+  ChangesetsOutputEvent,
+  { type: "npm-stage" }
+>;
+
+class ChangesetsOutputReadError extends Error {}
 
 type PublishResult =
   | {
       published: true;
       publishedPackages: PublishedPackage[];
+      stagedPackages?: NpmStageEvent[];
+      exitCode: number;
     }
   | {
       published: false;
+      stagedPackages?: NpmStageEvent[];
+      exitCode: number;
     };
 
+function isObject(value: unknown) {
+  return typeof value === "object" && value !== null;
+}
+
+function isChangesetsOutputEvent(
+  value: unknown,
+): value is ChangesetsOutputEvent {
+  if (!isObject(value) || !("type" in value)) return false;
+  if (
+    value.type === "git-tag" &&
+    "tag" in value &&
+    typeof value.tag === "string" &&
+    "packageName" in value &&
+    typeof value.packageName === "string"
+  ) {
+    return true;
+  }
+  return (
+    value.type === "npm-stage" &&
+    "packageName" in value &&
+    typeof value.packageName === "string" &&
+    "version" in value &&
+    typeof value.version === "string" &&
+    "tag" in value &&
+    typeof value.tag === "string" &&
+    "gitTag" in value &&
+    typeof value.gitTag === "string" &&
+    "stageId" in value &&
+    typeof value.stageId === "string"
+  );
+}
+
+export async function readChangesetsOutput(outputPath: string) {
+  let rawOutput: string;
+  try {
+    rawOutput = await fs.readFile(outputPath, "utf8");
+  } catch (err) {
+    throw new ChangesetsOutputReadError(
+      `Failed to read changesets output at ${outputPath}`,
+      { cause: err },
+    );
+  }
+
+  const events: ChangesetsOutputEvent[] = [];
+
+  let lineStart = 0;
+  while (lineStart <= rawOutput.length) {
+    let lineEnd = rawOutput.indexOf("\n", lineStart);
+    if (lineEnd === -1) {
+      lineEnd = rawOutput.length;
+    }
+    const line = rawOutput.slice(lineStart, lineEnd);
+    lineStart = lineEnd + 1;
+
+    if (/^\s*$/.test(line)) {
+      continue;
+    }
+
+    let event: unknown;
+    try {
+      event = JSON.parse(line);
+    } catch (err) {
+      throw new Error(`Failed to parse changesets output event: ${line}`, {
+        cause: err,
+      });
+    }
+
+    if (!isChangesetsOutputEvent(event)) {
+      continue;
+    }
+
+    events.push(event);
+  }
+
+  return events;
+}
+
 export async function runPublish({
   script,
-  githubToken,
+  fromPackDir,
+  stage,
+  github,
   createGithubReleases,
-  cwd = process.cwd(),
+  pushGitTags,
+  cwd,
 }: PublishOptions): Promise<PublishResult> {
-  const octokit = new (GitHub.plugin(throttling))(
-    getOctokitOptions(githubToken, {
-      throttle: {
-        onRateLimit: (retryAfter, options: any, octokit, retryCount) => {
-          console.log(
-            `Request quota exhausted for request ${options.method} ${options.url}`
-          );
-
-          if (retryCount <= 2) {
-            console.log(`Retrying after ${retryAfter} seconds!`);
-            return true;
-          }
-        },
-        onSecondaryRateLimit: (
-          retryAfter,
-          options: any,
-          octokit,
-          retryCount
-        ) => {
-          console.log(
-            `SecondaryRateLimit detected for request ${options.method} ${options.url}`
-          );
-
-          if (retryCount <= 2) {
-            console.log(`Retrying after ${retryAfter} seconds!`);
-            return true;
-          }
-        },
-      },
-    })
+  const { octokit } = github;
+  let changesetPublishOutput: ExecOutput;
+  const outputFile = path.join(
+    process.env.RUNNER_TEMP ?? (await fs.realpath(os.tmpdir())),
+    `changesets-output-${randomUUID()}.ndjson`,
   );
+  const execOptions: ExecOptions = {
+    cwd,
+    ignoreReturnCode: true,
+    env: {
+      ...process.env,
+      GITHUB_TOKEN: github.getToken(),
+      CHANGESETS_OUTPUT: outputFile,
+    },
+  };
 
-  let [publishCommand, ...publishArgs] = script.split(/\s+/);
-
-  let changesetPublishOutput = await getExecOutput(
-    publishCommand,
-    publishArgs,
-    { cwd }
-  );
-
-  await gitUtils.pushTags();
-
-  let { packages, tool } = await getPackages(cwd);
-  let releasedPackages: Package[] = [];
-
-  if (tool !== "root") {
-    let newTagRegex = /New tag:\s+(@[^/]+\/[^@]+|[^/]+)@([^\s]+)/;
-    let packagesByName = new Map(packages.map((x) => [x.packageJson.name, x]));
-
-    for (let line of changesetPublishOutput.stdout.split("\n")) {
-      let match = line.match(newTagRegex);
-      if (match === null) {
-        continue;
-      }
-      let pkgName = match[1];
-      let pkg = packagesByName.get(pkgName);
-      if (pkg === undefined) {
-        throw new Error(
-          `Package "${pkgName}" not found.` +
-            "This is probably a bug in the action, please open an issue"
-        );
-      }
-      releasedPackages.push(pkg);
-    }
-
-    if (createGithubReleases) {
-      await Promise.all(
-        releasedPackages.map((pkg) =>
-          createRelease(octokit, {
-            pkg,
-            tagName: `${pkg.packageJson.name}@${pkg.packageJson.version}`,
-          })
-        )
-      );
-    }
+  if (script) {
+    changesetPublishOutput = await getExecOutput(
+      script,
+      undefined,
+      execOptions,
+    );
   } else {
-    if (packages.length === 0) {
-      throw new Error(
-        `No package found.` +
-          "This is probably a bug in the action, please open an issue"
-      );
+    const args = ["publish"];
+    if (stage !== undefined) {
+      args.push(stage ? "--stage" : "--no-stage");
     }
-    let pkg = packages[0];
-    let newTagRegex = /New tag:/;
-
-    for (let line of changesetPublishOutput.stdout.split("\n")) {
-      let match = line.match(newTagRegex);
-
-      if (match) {
-        releasedPackages.push(pkg);
-        if (createGithubReleases) {
-          await createRelease(octokit, {
-            pkg,
-            tagName: `v${pkg.packageJson.version}`,
-          });
-        }
-        break;
-      }
+    if (fromPackDir) {
+      args.push("--from-pack-dir", fromPackDir);
     }
+    changesetPublishOutput = await getExecOutputChangesetsCli(
+      args,
+      execOptions,
+    );
   }
 
-  if (releasedPackages.length) {
+  let { packages, rootPackage, tool } = await getPackages(cwd);
+  let packagesByName = new Map(
+    [...packages, ...(rootPackage ? [rootPackage] : [])].map((x) => [
+      x.packageJson.name,
+      x,
+    ]),
+  );
+  let output: ChangesetsOutputEvent[];
+  try {
+    output = await readChangesetsOutput(outputFile);
+  } catch (err) {
+    if (!script || !(err instanceof ChangesetsOutputReadError)) {
+      throw err;
+    }
+    core.warning(
+      `${err.message}. GitHub releases and git tags cannot be created without this output. Ensure the custom publish script passes CHANGESETS_OUTPUT to the Changesets CLI.`,
+    );
+    output = [];
+  }
+  const stagedPackages = output.filter(
+    (event): event is NpmStageEvent => event.type === "npm-stage",
+  );
+  let releases = output
+    .filter(
+      (event): event is Extract<ChangesetsOutputEvent, { type: "git-tag" }> =>
+        event.type === "git-tag",
+    )
+    .map((event) => {
+      let pkg = packagesByName.get(event.packageName);
+      if (pkg === undefined) {
+        throw new Error(
+          `Package "${event.packageName}" not found.` +
+            "This is probably a bug in the action, please open an issue",
+        );
+      }
+      return { pkg, tag: event.tag };
+    });
+
+  if (tool.type === "root" && packages.length === 0) {
+    throw new Error(
+      `No package found.` +
+        "This is probably a bug in the action, please open an issue",
+    );
+  }
+
+  if (createGithubReleases || pushGitTags) {
+    await Promise.all(
+      releases.map(async ({ pkg, tag }) => {
+        if (pushGitTags) {
+          await github.pushTag(tag);
+        }
+        if (createGithubReleases) {
+          await createRelease(octokit, { pkg, tagName: tag });
+        }
+      }),
+    );
+  }
+
+  if (releases.length) {
     return {
       published: true,
-      publishedPackages: releasedPackages.map((pkg) => ({
+      publishedPackages: releases.map(({ pkg }) => ({
         name: pkg.packageJson.name,
         version: pkg.packageJson.version,
       })),
+      ...(stagedPackages.length > 0 ? { stagedPackages } : {}),
+      exitCode: changesetPublishOutput.exitCode,
     };
   }
 
-  return { published: false };
+  return {
+    published: false,
+    ...(stagedPackages.length > 0 ? { stagedPackages } : {}),
+    exitCode: changesetPublishOutput.exitCode,
+  };
 }
 
-const requireChangesetsCliPkgJson = (cwd: string) => {
-  try {
-    return require(resolveFrom(cwd, "@changesets/cli/package.json"));
-  } catch (err) {
-    if (err && err.code === "MODULE_NOT_FOUND") {
-      throw new Error(
-        `Have you forgotten to install \`@changesets/cli\` in "${cwd}"?`
-      );
-    }
-    throw err;
-  }
-};
-
 type GetMessageOptions = {
   hasPublishScript: boolean;
   branch: string;
@@ -280,12 +379,14 @@ export async function getVersionPrBody({
 
 type VersionOptions = {
   script?: string;
-  githubToken: string;
+  github: GitHub;
   cwd?: string;
   prTitle?: string;
   commitMessage?: string;
   hasPublishScript?: boolean;
   prBodyMaxCharacters?: number;
+  prDraft?: "always" | "create";
+  branch?: string;
 };
 
 type RunVersionResult = {
@@ -294,47 +395,38 @@ type RunVersionResult = {
 
 export async function runVersion({
   script,
-  githubToken,
+  github,
   cwd = process.cwd(),
   prTitle = "Version Packages",
   commitMessage = "Version Packages",
   hasPublishScript = false,
   prBodyMaxCharacters = MAX_CHARACTERS_PER_MESSAGE,
+  branch = context.ref.replace("refs/heads/", ""),
+  prDraft,
 }: VersionOptions): Promise<RunVersionResult> {
-  let repo = `${github.context.repo.owner}/${github.context.repo.repo}`;
-  let branch = github.context.ref.replace("refs/heads/", "");
+  const { octokit } = github;
   let versionBranch = `changeset-release/${branch}`;
-  let octokit = github.getOctokit(githubToken);
+
   let { preState } = await readChangesetState(cwd);
 
-  await gitUtils.switchToMaybeExistingBranch(versionBranch);
-  await gitUtils.reset(github.context.sha);
+  await github.prepareBranch(versionBranch);
 
   let versionsByDirectory = await getVersionsByDirectory(cwd);
 
+  const env = { ...process.env, GITHUB_TOKEN: github.getToken() };
+
   if (script) {
-    let [versionCommand, ...versionArgs] = script.split(/\s+/);
-    await exec(versionCommand, versionArgs, { cwd });
+    await exec(script, undefined, { cwd, env });
   } else {
-    let changesetsCliPkgJson = requireChangesetsCliPkgJson(cwd);
-    let cmd = semver.lt(changesetsCliPkgJson.version, "2.0.0")
-      ? "bump"
-      : "version";
-    await exec("node", [resolveFrom(cwd, "@changesets/cli/bin.js"), cmd], {
-      cwd,
-    });
+    await execChangesetsCli(["version"], { cwd, env });
   }
 
-  let searchQuery = `repo:${repo}+state:open+head:${versionBranch}+base:${branch}+is:pull-request`;
-  let searchResultPromise = octokit.rest.search.issuesAndPullRequests({
-    q: searchQuery,
-  });
   let changedPackages = await getChangedPackages(cwd, versionsByDirectory);
   let changedPackagesInfoPromises = Promise.all(
     changedPackages.map(async (pkg) => {
       let changelogContents = await fs.readFile(
         path.join(pkg.dir, "CHANGELOG.md"),
-        "utf8"
+        "utf8",
       );
 
       let entry = getChangelogEntry(changelogContents, pkg.packageJson.version);
@@ -344,23 +436,32 @@ export async function runVersion({
         content: entry.content,
         header: `## ${pkg.packageJson.name}@${pkg.packageJson.version}`,
       };
-    })
+    }),
   );
 
   const finalPrTitle = `${prTitle}${!!preState ? ` (${preState.tag})` : ""}`;
+  const finalCommitMessage = `${commitMessage}${
+    !!preState ? ` (${preState.tag})` : ""
+  }`;
 
-  // project with `commit: true` setting could have already committed files
-  if (!(await gitUtils.checkIfClean())) {
-    const finalCommitMessage = `${commitMessage}${
-      !!preState ? ` (${preState.tag})` : ""
-    }`;
-    await gitUtils.commitAll(finalCommitMessage);
-  }
+  const existingPullRequests = await octokit.rest.pulls.list({
+    ...context.repo,
+    state: "open",
+    head: `${context.repo.owner}:${versionBranch}`,
+    base: branch,
+  });
+  core.info(
+    `Existing pull requests: ${JSON.stringify(
+      existingPullRequests.data,
+      null,
+      2,
+    )}`,
+  );
 
-  await gitUtils.push(versionBranch, { force: true });
-
-  let searchResult = await searchResultPromise;
-  console.log(JSON.stringify(searchResult.data, null, 2));
+  await github.pushChanges({
+    branch: versionBranch,
+    message: finalCommitMessage,
+  });
 
   const changedPackagesInfo = (await changedPackagesInfoPromises)
     .filter((x) => x)
@@ -374,28 +475,64 @@ export async function runVersion({
     prBodyMaxCharacters,
   });
 
-  if (searchResult.data.items.length === 0) {
-    console.log("creating pull request");
+  if (existingPullRequests.data.length === 0) {
+    core.info("creating pull request");
     const { data: newPullRequest } = await octokit.rest.pulls.create({
       base: branch,
       head: versionBranch,
       title: finalPrTitle,
       body: prBody,
-      ...github.context.repo,
+      draft: prDraft !== undefined,
+      ...context.repo,
     });
 
     return {
       pullRequestNumber: newPullRequest.number,
     };
   } else {
-    const [pullRequest] = searchResult.data.items;
+    const [pullRequest] = existingPullRequests.data;
 
-    console.log(`updating found pull request #${pullRequest.number}`);
-    await octokit.rest.pulls.update({
-      pull_number: pullRequest.number,
+    core.info(`updating found pull request #${pullRequest.number}`);
+    const convertPullRequestToDraftMutation =
+      prDraft === "always"
+        ? `
+        convertPullRequestToDraft(
+          input: {
+            pullRequestId: $pullRequestId
+          }
+        ) {
+          pullRequest {
+            id
+          }
+        }`
+        : "";
+    const updatePullRequestMutation = `
+      mutation UpdatePullRequest(
+        $pullRequestId: ID!
+        $title: String!
+        $body: String!
+      ) {
+        ${convertPullRequestToDraftMutation}
+
+        updatePullRequest(
+          input: {
+            pullRequestId: $pullRequestId
+            title: $title
+            body: $body
+            state: OPEN
+          }
+        ) {
+          pullRequest {
+            id
+          }
+        }
+      }
+    `;
+
+    await octokit.graphql(updatePullRequestMutation, {
+      pullRequestId: pullRequest.node_id,
       title: finalPrTitle,
       body: prBody,
-      ...github.context.repo,
     });
 
     return {

src/select-mode/index.ts

@@ -0,0 +1,121 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import artifact from "@actions/artifact";
+import * as core from "@actions/core";
+import readChangesetState from "../readChangesetState.ts";
+import { execChangesetsCli, validateChangesetsCliVersion } from "../utils.ts";
+
+type ModeResult =
+  | {
+      mode: "none";
+    }
+  | {
+      mode: "version";
+    }
+  | {
+      mode: "publish";
+      publishPlanPath: string;
+    };
+
+type PublishPlan = unknown[];
+
+try {
+  await main();
+} catch (err) {
+  core.setFailed((err as Error).message);
+}
+
+async function main() {
+  const cwd = process.cwd();
+  await validateChangesetsCliVersion(cwd);
+
+  const result = await getMode(cwd);
+  core.setOutput("mode", result.mode);
+  if (result.mode === "publish") {
+    const publishPlanArtifact = await artifact.uploadArtifact(
+      path.basename(result.publishPlanPath, ".json"),
+      [result.publishPlanPath],
+      path.dirname(result.publishPlanPath),
+      {
+        skipArchive: true,
+        retentionDays: 30,
+      },
+    );
+    if (publishPlanArtifact.id === undefined) {
+      throw new Error(
+        "Publish plan artifact upload did not return an artifact id",
+      );
+    }
+    core.setOutput("publish-plan-artifact-id", String(publishPlanArtifact.id));
+  }
+}
+
+async function getMode(cwd: string): Promise<ModeResult> {
+  const { changesets } = await readChangesetState(cwd);
+
+  if (changesets.length > 0) {
+    const hasNonEmptyChangesets = changesets.some(
+      (changeset) => changeset.releases.length > 0,
+    );
+    if (hasNonEmptyChangesets) {
+      return { mode: "version" };
+    }
+    return { mode: "none" };
+  }
+
+  const publishPlanPath = path.join(
+    process.env.RUNNER_TEMP ?? (await fs.realpath(os.tmpdir())),
+    `changeset-publish-plan-${Date.now()}`,
+    // we need a stable filename here (in a unique dirname) so the artifact download can find this cleanly
+    "publish-plan.json",
+  );
+  await execChangesetsCli(["publish-plan", "--output", publishPlanPath], {
+    cwd,
+    env: process.env,
+  });
+
+  const publishPlan = await readPublishPlan(publishPlanPath);
+  if (publishPlan.length === 0) {
+    return { mode: "none" };
+  }
+
+  return {
+    mode: "publish",
+    publishPlanPath,
+  };
+}
+
+async function readPublishPlan(publishPlanPath: string): Promise<PublishPlan> {
+  let rawPlan: string;
+  try {
+    rawPlan = await fs.readFile(publishPlanPath, "utf8");
+  } catch (err) {
+    throw new Error(`Failed to read publish plan at ${publishPlanPath}`, {
+      cause: err,
+    });
+  }
+
+  let plan: unknown;
+  try {
+    plan = JSON.parse(rawPlan);
+  } catch (err) {
+    throw new Error(`Failed to parse publish plan at ${publishPlanPath}`, {
+      cause: err,
+    });
+  }
+
+  if (
+    typeof plan !== "object" ||
+    plan === null ||
+    !("version" in plan) ||
+    typeof plan.version !== "number" ||
+    !("plan" in plan) ||
+    !Array.isArray(plan.plan)
+  ) {
+    throw new Error(
+      `Invalid publish plan at ${publishPlanPath}: expected { version: number; plan: unknown[] }`,
+    );
+  }
+  return plan.plan;
+}

src/staged-release.test.ts

@@ -0,0 +1,218 @@
+import * as path from "node:path";
+import { getExecOutput } from "@actions/exec";
+import type { Package } from "@manypkg/get-packages";
+import { createFixture } from "fs-fixture";
+import { describe, expect, it, vi } from "vitest";
+import type { GitHub } from "./github.ts";
+import {
+  createStagedReleaseHandoff,
+  finalizeStagedRelease,
+  formatStageCommand,
+  validateStagedReleaseHandoff,
+  verifyPublished,
+  type StagedReleaseEntry,
+} from "./staged-release.ts";
+
+vi.mock("@actions/github", () => ({
+  context: {
+    repo: { owner: "changesets", repo: "action" },
+    runId: 123,
+    sha: "abc123",
+  },
+}));
+vi.mock("@actions/exec", async (importOriginal) => ({
+  ...(await importOriginal<typeof import("@actions/exec")>()),
+  getExecOutput: vi.fn(),
+}));
+
+const entry: StagedReleaseEntry = {
+  packageName: "pkg-a",
+  version: "1.0.0",
+  tag: "latest",
+  gitTag: "pkg-a@1.0.0",
+  stageId: "1de6f3db-2ed9-4d72-b3dd-8f0e2b474a2f",
+};
+
+async function createProject() {
+  return createFixture({
+    "package.json": JSON.stringify({
+      name: "repo",
+      private: true,
+      workspaces: ["packages/*"],
+    }),
+    "package-lock.json": "",
+    "packages/pkg-a/package.json": JSON.stringify({
+      name: "pkg-a",
+      version: "1.0.0",
+    }),
+    "packages/pkg-b/package.json": JSON.stringify({
+      name: "pkg-b",
+      version: "1.0.0",
+    }),
+  });
+}
+
+describe("staged release handoff", () => {
+  it("prints stage ids in their topological event order", () => {
+    expect(
+      formatStageCommand(
+        [
+          { type: "npm-stage", ...entry, stageId: "stage-b" },
+          { type: "npm-stage", ...entry, stageId: "stage-a" },
+        ],
+        "approve",
+      ),
+    ).toBe("changeset stage approve stage-b stage-a");
+  });
+
+  it("prints rejection recovery for a partial publish failure", () => {
+    expect(
+      formatStageCommand(
+        [{ type: "npm-stage", ...entry, stageId: "stage-a" }],
+        "reject",
+      ),
+    ).toBe("changeset stage reject stage-a");
+  });
+
+  it("validates origin, manifests, tags, and preserves order", async () => {
+    await using fixture = await createProject();
+    const handoff = createStagedReleaseHandoff(
+      [
+        { type: "npm-stage", ...entry },
+        {
+          type: "npm-stage",
+          ...entry,
+          packageName: "pkg-b",
+          gitTag: "pkg-b@1.0.0",
+          stageId: "2de6f3db-2ed9-4d72-b3dd-8f0e2b474a2f",
+        },
+      ],
+      { repository: "changesets/action", runId: 123, sha: "abc123" },
+    );
+    const result = await validateStagedReleaseHandoff(handoff, fixture.path, {
+      repository: "changesets/action",
+      runId: 123,
+      sha: "abc123",
+    });
+    expect(result.handoff.releases.map((release) => release.stageId)).toEqual([
+      "1de6f3db-2ed9-4d72-b3dd-8f0e2b474a2f",
+      "2de6f3db-2ed9-4d72-b3dd-8f0e2b474a2f",
+    ]);
+  });
+
+  it("rejects a handoff from another workflow run", async () => {
+    await using fixture = await createProject();
+    const handoff = createStagedReleaseHandoff(
+      [{ type: "npm-stage", ...entry }],
+      { repository: "changesets/action", runId: 122, sha: "abc123" },
+    );
+
+    await expect(
+      validateStagedReleaseHandoff(handoff, fixture.path, {
+        repository: "changesets/action",
+        runId: 123,
+        sha: "abc123",
+      }),
+    ).rejects.toThrow("do not match this workflow run");
+  });
+
+  it("verifies an exact version through the configured package manager", async () => {
+    await using fixture = await createProject();
+    vi.mocked(getExecOutput).mockResolvedValue({
+      exitCode: 0,
+      stdout: JSON.stringify("1.0.0"),
+      stderr: "",
+    } as never);
+
+    await verifyPublished([entry], fixture.path, { timeoutMs: 0 });
+
+    expect(getExecOutput).toHaveBeenCalledWith(
+      "npm",
+      ["view", "pkg-a@1.0.0", "version", "--json"],
+      expect.objectContaining({ cwd: fixture.path }),
+    );
+  });
+
+  it("accepts existing correct tags and releases without writes", async () => {
+    const getRef = vi.fn().mockResolvedValue({
+      data: { object: { sha: "abc123" } },
+    });
+    const createRef = vi.fn();
+    const getReleaseByTag = vi.fn().mockResolvedValue({ data: { id: 1 } });
+    const createRelease = vi.fn();
+    const github = {
+      octokit: {
+        rest: {
+          git: { getRef, createRef },
+          repos: { getReleaseByTag, createRelease },
+        },
+      },
+    } as unknown as GitHub;
+    const pkg = {
+      dir: path.join("/repo", "packages/pkg-a"),
+      relativeDir: "packages/pkg-a",
+      packageJson: { name: "pkg-a", version: "1.0.0" },
+    } satisfies Package;
+
+    await finalizeStagedRelease({
+      github,
+      handoff: {
+        version: 1,
+        repository: "changesets/action",
+        runId: 123,
+        sha: "abc123",
+        releases: [entry],
+      },
+      packagesByName: new Map([["pkg-a", pkg]]),
+      cwd: "/repo",
+      verify: false,
+    });
+
+    expect(createRef).not.toHaveBeenCalled();
+    expect(createRelease).not.toHaveBeenCalled();
+  });
+
+  it("rejects an existing tag at another commit", async () => {
+    const github = {
+      octokit: {
+        rest: {
+          git: {
+            getRef: vi.fn().mockResolvedValue({
+              data: { object: { sha: "wrong" } },
+            }),
+            createRef: vi.fn(),
+          },
+          repos: {
+            getReleaseByTag: vi.fn(),
+            createRelease: vi.fn(),
+          },
+        },
+      },
+    } as unknown as GitHub;
+
+    await expect(
+      finalizeStagedRelease({
+        github,
+        handoff: {
+          version: 1,
+          repository: "changesets/action",
+          runId: 123,
+          sha: "abc123",
+          releases: [entry],
+        },
+        packagesByName: new Map([
+          [
+            "pkg-a",
+            {
+              dir: "/repo/pkg-a",
+              relativeDir: "pkg-a",
+              packageJson: { name: "pkg-a", version: "1.0.0" },
+            } satisfies Package,
+          ],
+        ]),
+        cwd: "/repo",
+        verify: false,
+      }),
+    ).rejects.toThrow("expected abc123");
+  });
+});

src/staged-release.ts

@@ -0,0 +1,342 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import artifact from "@actions/artifact";
+import * as core from "@actions/core";
+import { getExecOutput } from "@actions/exec";
+import { context } from "@actions/github";
+import { getPackages, type Package } from "@manypkg/get-packages";
+import type { GitHub } from "./github.ts";
+import { createRelease, type NpmStageEvent } from "./run.ts";
+import { downloadArtifact } from "./utils.ts";
+
+export const STAGED_RELEASE_VERSION = 1;
+export const STAGED_RELEASE_FILENAME = "staged-release.json";
+const STAGE_ID_PATTERN =
+  /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+
+export type StagedReleaseEntry = Omit<NpmStageEvent, "type">;
+
+export type StagedReleaseHandoff = {
+  version: typeof STAGED_RELEASE_VERSION;
+  repository: string;
+  runId: number;
+  sha: string;
+  releases: StagedReleaseEntry[];
+};
+
+type HandoffIdentity = {
+  repository: string;
+  runId: number;
+  sha: string;
+};
+
+function currentIdentity(): HandoffIdentity {
+  return {
+    repository: `${context.repo.owner}/${context.repo.repo}`,
+    runId: context.runId,
+    sha: context.sha,
+  };
+}
+
+function isObject(value: unknown): value is Record<string, unknown> {
+  return typeof value === "object" && value !== null;
+}
+
+function isHttpNotFound(error: unknown) {
+  return (
+    isObject(error) &&
+    (error.status === 404 || error.code === 404 || error.code === "404")
+  );
+}
+
+function isStagedReleaseEntry(value: unknown): value is StagedReleaseEntry {
+  return (
+    isObject(value) &&
+    typeof value.packageName === "string" &&
+    value.packageName.length > 0 &&
+    typeof value.version === "string" &&
+    value.version.length > 0 &&
+    typeof value.tag === "string" &&
+    value.tag.length > 0 &&
+    typeof value.gitTag === "string" &&
+    value.gitTag.length > 0 &&
+    typeof value.stageId === "string" &&
+    STAGE_ID_PATTERN.test(value.stageId)
+  );
+}
+
+export function createStagedReleaseHandoff(
+  events: readonly NpmStageEvent[],
+  identity: HandoffIdentity = currentIdentity(),
+): StagedReleaseHandoff {
+  return {
+    version: STAGED_RELEASE_VERSION,
+    ...identity,
+    releases: events.map(({ type: _, ...event }) => event),
+  };
+}
+
+export function formatStageCommand(
+  events: readonly NpmStageEvent[],
+  operation: "approve" | "reject",
+) {
+  return `changeset stage ${operation} ${events
+    .map((event) => event.stageId)
+    .join(" ")}`;
+}
+
+export async function uploadStagedRelease(
+  events: readonly NpmStageEvent[],
+  operation: "approve" | "reject",
+): Promise<number> {
+  const verb = operation === "approve" ? "Approve" : "Reject";
+  core.info(`${verb} the staged packages in this order:
+${formatStageCommand(events, operation)}`);
+  core.info(
+    "This command uses the default registry. For custom or multiple registries, split the IDs and pass --registry to each command.",
+  );
+
+  const tmpDir = process.env.RUNNER_TEMP ?? (await fs.realpath(os.tmpdir()));
+  const outDir = path.join(tmpDir, `changeset-staged-release-${Date.now()}`);
+  const handoffPath = path.join(outDir, STAGED_RELEASE_FILENAME);
+  await fs.mkdir(outDir, { recursive: true });
+  await fs.writeFile(
+    handoffPath,
+    `${JSON.stringify(createStagedReleaseHandoff(events), null, 2)}\n`,
+  );
+
+  const result = await artifact.uploadArtifact(
+    `changeset-staged-release-${context.runId}-${Date.now()}`,
+    [handoffPath],
+    outDir,
+    { skipArchive: true, retentionDays: 30 },
+  );
+  if (result.id === undefined) {
+    throw new Error("Staged release artifact upload did not return an id");
+  }
+
+  return result.id;
+}
+
+function expectedGitTag(
+  tool: Awaited<ReturnType<typeof getPackages>>["tool"],
+  entry: StagedReleaseEntry,
+) {
+  return tool.type === "root"
+    ? `v${entry.version}`
+    : `${entry.packageName}@${entry.version}`;
+}
+
+export async function validateStagedReleaseHandoff(
+  value: unknown,
+  cwd: string,
+  identity: HandoffIdentity = currentIdentity(),
+): Promise<{
+  handoff: StagedReleaseHandoff;
+  packagesByName: Map<string, Package>;
+}> {
+  if (
+    !isObject(value) ||
+    value.version !== STAGED_RELEASE_VERSION ||
+    value.repository !== identity.repository ||
+    value.runId !== identity.runId ||
+    value.sha !== identity.sha ||
+    !Array.isArray(value.releases) ||
+    value.releases.length === 0 ||
+    !value.releases.every(isStagedReleaseEntry)
+  ) {
+    throw new Error(
+      "Invalid staged release artifact: version, origin, or release entries do not match this workflow run",
+    );
+  }
+
+  const handoff = value as StagedReleaseHandoff;
+  const uniqueFields: Array<keyof StagedReleaseEntry> = [
+    "packageName",
+    "gitTag",
+    "stageId",
+  ];
+  for (const field of uniqueFields) {
+    const values = handoff.releases.map((entry) => entry[field]);
+    if (new Set(values).size !== values.length) {
+      throw new Error(
+        `Invalid staged release artifact: duplicate ${field} value`,
+      );
+    }
+  }
+
+  const { packages, rootPackage, tool } = await getPackages(cwd);
+  const packagesByName = new Map(
+    [...packages, ...(rootPackage ? [rootPackage] : [])].map((pkg) => [
+      pkg.packageJson.name,
+      pkg,
+    ]),
+  );
+  for (const entry of handoff.releases) {
+    const pkg = packagesByName.get(entry.packageName);
+    if (!pkg || pkg.packageJson.version !== entry.version) {
+      throw new Error(
+        `Invalid staged release artifact: ${entry.packageName}@${entry.version} does not match the checked-out manifest`,
+      );
+    }
+    if (entry.gitTag !== expectedGitTag(tool, entry)) {
+      throw new Error(
+        `Invalid staged release artifact: unexpected Git tag ${entry.gitTag}`,
+      );
+    }
+  }
+
+  return { handoff, packagesByName };
+}
+
+export async function downloadAndValidateStagedRelease(
+  artifactId: number,
+  cwd: string,
+) {
+  const tmpDir = process.env.RUNNER_TEMP ?? (await fs.realpath(os.tmpdir()));
+  const artifactDir = await downloadArtifact(
+    tmpDir,
+    artifactId,
+    "changeset-staged-release",
+  );
+  const handoffPath = path.join(artifactDir, STAGED_RELEASE_FILENAME);
+  let value: unknown;
+  try {
+    value = JSON.parse(await fs.readFile(handoffPath, "utf8"));
+  } catch (error) {
+    throw new Error(`Failed to read staged release artifact ${artifactId}`, {
+      cause: error,
+    });
+  }
+  return validateStagedReleaseHandoff(value, cwd);
+}
+
+function outputContainsVersion(output: string, version: string) {
+  const values: unknown[] = [];
+  for (const line of output.split("\n")) {
+    if (!line.trim()) continue;
+    try {
+      values.push(JSON.parse(line));
+    } catch {
+      continue;
+    }
+  }
+
+  const contains = (value: unknown): boolean => {
+    if (value === version) return true;
+    if (Array.isArray(value)) return value.some(contains);
+    if (isObject(value)) return Object.values(value).some(contains);
+    return false;
+  };
+  return values.some(contains);
+}
+
+async function isPublished(
+  cwd: string,
+  tool: Awaited<ReturnType<typeof getPackages>>["tool"],
+  entry: StagedReleaseEntry,
+) {
+  const spec = `${entry.packageName}@${entry.version}`;
+  const command =
+    tool.type === "pnpm" ? "pnpm" : tool.type === "yarn" ? "yarn" : "npm";
+  const args =
+    tool.type === "yarn"
+      ? ["npm", "info", spec, "--fields", "version", "--json"]
+      : ["view", spec, "version", "--json"];
+  const result = await getExecOutput(command, args, {
+    cwd,
+    ignoreReturnCode: true,
+    silent: true,
+    env: process.env as Record<string, string>,
+  });
+  return (
+    result.exitCode === 0 && outputContainsVersion(result.stdout, entry.version)
+  );
+}
+
+export async function verifyPublished(
+  releases: readonly StagedReleaseEntry[],
+  cwd: string,
+  options: { timeoutMs?: number; intervalMs?: number } = {},
+) {
+  const timeoutMs = options.timeoutMs ?? 120_000;
+  const intervalMs = options.intervalMs ?? 5_000;
+  const deadline = Date.now() + timeoutMs;
+  const { tool } = await getPackages(cwd);
+
+  while (true) {
+    const results = await Promise.all(
+      releases.map((release) => isPublished(cwd, tool, release)),
+    );
+    if (results.every(Boolean)) return;
+    if (Date.now() >= deadline) {
+      const missing = releases
+        .filter((_, index) => !results[index])
+        .map((release) => `${release.packageName}@${release.version}`);
+      throw new Error(
+        `Timed out waiting for approved packages to become visible: ${missing.join(", ")}`,
+      );
+    }
+    await new Promise((resolve) =>
+      setTimeout(resolve, Math.min(intervalMs, deadline - Date.now())),
+    );
+  }
+}
+
+async function ensureTag(github: GitHub, tag: string, sha: string) {
+  try {
+    const existing = await github.octokit.rest.git.getRef({
+      ...context.repo,
+      ref: `tags/${tag}`,
+    });
+    if (existing.data.object.sha !== sha) {
+      throw new Error(
+        `Git tag ${tag} already exists at ${existing.data.object.sha}, expected ${sha}`,
+      );
+    }
+    return;
+  } catch (error) {
+    if (!isHttpNotFound(error)) {
+      throw error;
+    }
+  }
+  await github.octokit.rest.git.createRef({
+    ...context.repo,
+    ref: `refs/tags/${tag}`,
+    sha,
+  });
+}
+
+async function ensureRelease(github: GitHub, pkg: Package, tagName: string) {
+  try {
+    await github.octokit.rest.repos.getReleaseByTag({
+      ...context.repo,
+      tag: tagName,
+    });
+    return;
+  } catch (error) {
+    if (!isHttpNotFound(error)) {
+      throw error;
+    }
+  }
+  await createRelease(github.octokit, { pkg, tagName });
+}
+
+export async function finalizeStagedRelease(options: {
+  github: GitHub;
+  handoff: StagedReleaseHandoff;
+  packagesByName: Map<string, Package>;
+  cwd: string;
+  verify: boolean;
+}) {
+  if (options.verify) {
+    await verifyPublished(options.handoff.releases, options.cwd);
+  }
+
+  for (const entry of options.handoff.releases) {
+    const pkg = options.packagesByName.get(entry.packageName)!;
+    await ensureTag(options.github, entry.gitTag, options.handoff.sha);
+    await ensureRelease(options.github, pkg, entry.gitTag);
+  }
+}

src/utils.test.ts

@@ -1,4 +1,11 @@
-import { getChangelogEntry, BumpLevels, sortTheThings } from "./utils";
+import { createFixture } from "fs-fixture";
+import { expect, test } from "vitest";
+import {
+  BumpLevels,
+  getChangelogEntry,
+  sortTheThings,
+  validateChangesetsCliVersion,
+} from "./utils.ts";
 
 let changelog = `# @keystone-alpha/email
 
@@ -99,3 +106,49 @@ test("it sorts the things right", () => {
   ];
   expect(things.sort(sortTheThings)).toMatchSnapshot();
 });
+
+test("throws when the project declares Changesets CLI v2", async () => {
+  await using fixture = await createFixture({
+    "package.json": JSON.stringify({
+      name: "project",
+      devDependencies: { "@changesets/cli": "^2.29.7" },
+    }),
+    "package-lock.json": "",
+  });
+
+  await expect(validateChangesetsCliVersion(fixture.path)).rejects.toThrow(
+    "This version of the Changesets action is designed to work with Changesets CLI v3. Changesets CLI v2 is not supported; use Changesets action v1 instead, which is compatible with CLI v2.",
+  );
+});
+
+test("accepts a Changesets CLI v3 contract without an installed CLI", async () => {
+  await using fixture = await createFixture({
+    "package.json": JSON.stringify({
+      name: "project",
+      devDependencies: { "@changesets/cli": "^3.0.0" },
+    }),
+    "package-lock.json": "",
+  });
+
+  await expect(
+    validateChangesetsCliVersion(fixture.path),
+  ).resolves.toBeUndefined();
+});
+
+test("throws when the project has Changesets CLI v2 installed", async () => {
+  await using fixture = await createFixture({
+    "package.json": JSON.stringify({
+      name: "project",
+      devDependencies: { "@changesets/cli": "^3.0.0" },
+    }),
+    "package-lock.json": "",
+    "node_modules/@changesets/cli/package.json": JSON.stringify({
+      name: "@changesets/cli",
+      version: "2.29.7",
+    }),
+  });
+
+  await expect(validateChangesetsCliVersion(fixture.path)).rejects.toThrow(
+    "This version of the Changesets action is designed to work with Changesets CLI v3. Changesets CLI v2 is not supported; use Changesets action v1 instead, which is compatible with CLI v2.",
+  );
+});

src/utils.ts

@@ -1,10 +1,19 @@
-import unified from "unified";
-import remarkParse from "remark-parse";
-import remarkStringify from "remark-stringify";
-// @ts-ignore
-import mdastToString from "mdast-util-to-string";
-import { exec } from "@actions/exec";
-import { getPackages, Package } from "@manypkg/get-packages";
+import fs from "node:fs/promises";
+import { createRequire } from "node:module";
+import path from "node:path";
+import artifact from "@actions/artifact";
+import * as core from "@actions/core";
+import {
+  exec,
+  getExecOutput,
+  type ExecOptions as ActionsExecOptions,
+  type ExecOutput,
+} from "@actions/exec";
+import { getPackages, type Package } from "@manypkg/get-packages";
+import major from "semver/functions/major.js";
+import subset from "semver/ranges/subset.js";
+
+const require = createRequire(import.meta.url);
 
 export const BumpLevels = {
   dep: 0,
@@ -20,7 +29,7 @@ export async function getVersionsByDirectory(cwd: string) {
 
 export async function getChangedPackages(
   cwd: string,
-  previousVersions: Map<string, string>
+  previousVersions: Map<string, string>,
 ) {
   let { packages } = await getPackages(cwd);
   let changedPackages = new Set<Package>();
@@ -36,60 +45,61 @@ export async function getChangedPackages(
 }
 
 export function getChangelogEntry(changelog: string, version: string) {
-  let ast = unified().use(remarkParse).parse(changelog);
-
   let highestLevel: number = BumpLevels.dep;
-
-  let nodes = ast.children as Array<any>;
-  let headingStartInfo:
-    | {
-        index: number;
-        depth: number;
-      }
-    | undefined;
+  let headingStartInfo: { index: number; depth: number } | undefined;
   let endIndex: number | undefined;
 
-  for (let i = 0; i < nodes.length; i++) {
-    let node = nodes[i];
-    if (node.type === "heading") {
-      let stringified: string = mdastToString(node);
-      let match = stringified.toLowerCase().match(/(major|minor|patch)/);
-      if (match !== null) {
-        let level = BumpLevels[match[0] as "major" | "minor" | "patch"];
-        highestLevel = Math.max(level, highestLevel);
-      }
-      if (headingStartInfo === undefined && stringified === version) {
-        headingStartInfo = {
-          index: i,
-          depth: node.depth,
-        };
+  // Iterate through each headings and code blocks (for skipping its contents)
+  const regex = /^(#{1,6})\s(.*)$|^(`{3,})/gm;
+  let match: RegExpExecArray | null;
+  while ((match = regex.exec(changelog)) != null) {
+    // Skip over code blocks so we don't match any headings inside of them
+    if (match[3]) {
+      const endOfCodeBlockRegex = new RegExp(`^${match[3]}`, "gm");
+      endOfCodeBlockRegex.lastIndex = regex.lastIndex;
+      const endMatch = endOfCodeBlockRegex.exec(changelog);
+      if (endMatch) {
+        // Start next search for headings after the end of the code block
+        regex.lastIndex = endOfCodeBlockRegex.lastIndex;
         continue;
-      }
-      if (
-        endIndex === undefined &&
-        headingStartInfo !== undefined &&
-        headingStartInfo.depth === node.depth
-      ) {
-        endIndex = i;
+      } else {
+        // Can't find end of code block, probably malformed
         break;
       }
     }
+
+    const headingDepth = match[1].length;
+    const headingText = match[2].trim();
+
+    // Search for the highest bump level in the entire changelog
+    const levelMatch = /(major|minor|patch)/.exec(headingText.toLowerCase());
+    if (levelMatch != null) {
+      const level = BumpLevels[levelMatch[0] as "major" | "minor" | "patch"];
+      highestLevel = Math.max(level, highestLevel);
+    }
+
+    // Search for heading of the entry
+    if (headingText === version) {
+      headingStartInfo = { index: regex.lastIndex, depth: headingDepth };
+      continue;
+    }
+
+    // If we've found the entry heading, search for the closing heading with the same depth
+    if (headingStartInfo && headingDepth === headingStartInfo.depth) {
+      endIndex = match.index;
+      break;
+    }
   }
-  if (headingStartInfo) {
-    ast.children = (ast.children as any).slice(
-      headingStartInfo.index + 1,
-      endIndex
-    );
-  }
+
   return {
-    content: unified().use(remarkStringify).stringify(ast),
-    highestLevel: highestLevel,
+    content: changelog.slice(headingStartInfo?.index, endIndex).trim(),
+    highestLevel,
   };
 }
 
 export function sortTheThings(
   a: { private: boolean; highestLevel: number },
-  b: { private: boolean; highestLevel: number }
+  b: { private: boolean; highestLevel: number },
 ) {
   if (a.private === b.private) {
     return b.highestLevel - a.highestLevel;
@@ -99,3 +109,162 @@ export function sortTheThings(
   }
   return -1;
 }
+
+export function isErrorWithCode(err: unknown, code: string) {
+  return (
+    typeof err === "object" &&
+    err !== null &&
+    "code" in err &&
+    err.code === code
+  );
+}
+
+export function fileExists(filePath: string) {
+  return fs.access(filePath, fs.constants.F_OK).then(
+    () => true,
+    () => false,
+  );
+}
+
+export function getOptionalInput(name: string) {
+  // normalize empty string default return value of `core.getInput` to undefined
+  return core.getInput(name) || undefined;
+}
+
+export function getRequiredInput(name: string) {
+  // it's just a small utility wrapper, mainly introduced for usage parity with our custom `getOptionalInput`
+  // note: `core.getBooleanInput` gets used directly as it already normalizes the return value nicely
+  return core.getInput(name, { required: true });
+}
+
+export function getOptionalBooleanInput(name: string) {
+  const value = getOptionalInput(name);
+  if (value === undefined) return undefined;
+  if (value.toLowerCase() === "true") return true;
+  if (value.toLowerCase() === "false") return false;
+  throw new Error(
+    `Invalid boolean input ${JSON.stringify(name)}: ${JSON.stringify(value)}`,
+  );
+}
+
+export function throwOnRenamedInputs(renames: Record<string, string>) {
+  const references: Record<string, string> = {};
+
+  for (const [oldInput, newInput] of Object.entries(renames)) {
+    if (core.getInput(oldInput)) {
+      references[oldInput] = newInput;
+    }
+  }
+
+  if (Object.keys(references).length > 0) {
+    const list = Object.entries(references)
+      .map(([oldInput, newInput]) => `- "${oldInput}" -> "${newInput}"`)
+      .join("\n");
+    throw new Error(
+      `The following inputs have been renamed:\n${list}\nPlease update your workflow file.`,
+    );
+  }
+}
+
+const changesetsCliCompatibilityError =
+  "This version of the Changesets action is designed to work with Changesets CLI v3. " +
+  "Changesets CLI v2 is not supported; use Changesets action v1 instead, which is compatible with CLI v2.";
+
+export async function validateChangesetsCliVersion(cwd: string) {
+  const { rootPackage } = await getPackages(cwd);
+  const packageJson = rootPackage?.packageJson;
+  const declaredVersion =
+    packageJson?.devDependencies?.["@changesets/cli"] ??
+    packageJson?.dependencies?.["@changesets/cli"];
+
+  if (typeof declaredVersion === "string") {
+    const range = declaredVersion.startsWith("workspace:")
+      ? declaredVersion.slice("workspace:".length)
+      : declaredVersion;
+
+    let isV2 = false;
+
+    try {
+      isV2 = subset(range, ">=2.0.0-0 <3.0.0-0", {
+        includePrerelease: true,
+      });
+    } catch {
+      // it could be a non-semver protocol
+    }
+
+    if (isV2) {
+      throw new Error(changesetsCliCompatibilityError);
+    }
+  }
+
+  let cliPackageJson;
+
+  try {
+    cliPackageJson = require(
+      require.resolve("@changesets/cli/package.json", { paths: [cwd] }),
+    );
+  } catch {
+    return;
+  }
+
+  if (
+    typeof cliPackageJson.version === "string" &&
+    major(cliPackageJson.version) === 2
+  ) {
+    throw new Error(changesetsCliCompatibilityError);
+  }
+}
+
+function resolveChangesetsCli(cwd: string) {
+  return require.resolve("@changesets/cli/bin.js", {
+    paths: [cwd],
+  });
+}
+
+interface ExecOptions extends Omit<ActionsExecOptions, "env"> {
+  env?: Record<string, string | undefined>;
+}
+
+export function execChangesetsCli(args: string[], options?: ExecOptions) {
+  return exec(
+    "node",
+    [resolveChangesetsCli(options?.cwd ?? process.cwd()), ...args],
+    options as ActionsExecOptions,
+  );
+}
+
+export function getExecOutputChangesetsCli(
+  args: string[],
+  options?: ExecOptions,
+): Promise<ExecOutput> {
+  return getExecOutput(
+    "node",
+    [resolveChangesetsCli(options?.cwd ?? process.cwd()), ...args],
+    options as ActionsExecOptions,
+  );
+}
+
+export async function downloadArtifact(
+  tmpDir: string,
+  artifactId: number,
+  name: string,
+) {
+  if (!Number.isInteger(artifactId) || artifactId <= 0) {
+    throw new Error(
+      `Invalid ${JSON.stringify(name)} artifact id: ${artifactId}`,
+    );
+  }
+
+  const downloadPath = path.join(tmpDir, `${name}-${artifactId}-${Date.now()}`);
+  const result = await artifact.downloadArtifact(artifactId, {
+    path: downloadPath,
+  });
+
+  if (!result.downloadPath) {
+    throw new Error(
+      `${JSON.stringify(name)} artifact download did not return a path for artifact ${artifactId}`,
+    );
+  }
+
+  return result.downloadPath;
+}

src/version/index.ts

@@ -0,0 +1,62 @@
+import * as core from "@actions/core";
+import { GitHub } from "../github.ts";
+import { runVersion } from "../run.ts";
+import {
+  getOptionalInput,
+  getRequiredInput,
+  validateChangesetsCliVersion,
+} from "../utils.ts";
+
+try {
+  await main();
+} catch (err) {
+  core.setFailed((err as Error).message);
+}
+
+async function main() {
+  // If the user needs to change the cwd, set `working-directory` in the step instead
+  const cwd = process.cwd();
+  await validateChangesetsCliVersion(cwd);
+
+  const githubToken = getRequiredInput("github-token");
+  const script = getOptionalInput("script");
+  const commitMessage = getRequiredInput("commit-message");
+  const prTitle = getRequiredInput("pr-title");
+  const prDraft = getOptionalInput("pr-draft");
+  const prBaseBranch = getOptionalInput("pr-base-branch");
+  const commitMode = getOptionalInput("commit-mode") ?? "git-cli";
+  const setupGitUser = core.getBooleanInput("setup-git-user");
+
+  // Validations
+  if (prDraft !== undefined && prDraft !== "always" && prDraft !== "create") {
+    throw new Error(`Invalid pr-draft input: ${prDraft}`);
+  }
+  if (commitMode !== "git-cli" && commitMode !== "github-api") {
+    throw new Error(`Invalid commit-mode input: ${commitMode}`);
+  }
+
+  const github = new GitHub({
+    cwd,
+    githubToken,
+    commitMode,
+  });
+
+  if (setupGitUser) {
+    core.info("setting git user");
+    await github.setupUser();
+  }
+
+  const { pullRequestNumber } = await runVersion({
+    script,
+    github,
+    cwd,
+    prTitle,
+    commitMessage,
+    // TODO: Use neutral message for PR description
+    hasPublishScript: true,
+    prDraft,
+    branch: prBaseBranch,
+  });
+
+  core.setOutput("pr-number", String(pullRequestNumber));
+}

tsconfig.json

@@ -1,63 +1,11 @@
 {
+  "extends": "@tsconfig/node24/tsconfig.json",
   "compilerOptions": {
-    /* Basic Options */
-    // "incremental": true,                   /* Enable incremental compilation */
-    "target": "esnext" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
-    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
-    // "lib": [],                             /* Specify library files to be included in the compilation. */
-    // "allowJs": true,                       /* Allow javascript files to be compiled. */
-    // "checkJs": true,                       /* Report errors in .js files. */
-    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
-    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
-    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
-    // "outFile": "./",                       /* Concatenate and emit output to single file. */
-    // "outDir": "./",                        /* Redirect output structure to the directory. */
-    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
-    // "composite": true,                     /* Enable project compilation */
-    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
-    // "removeComments": true,                /* Do not emit comments to output. */
-    "noEmit": true /* Do not emit outputs. */,
-    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
-    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
-    "isolatedModules": true /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */,
-
-    /* Strict Type-Checking Options */
-    "strict": true /* Enable all strict type-checking options. */,
-    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
-    // "strictNullChecks": true,              /* Enable strict null checks. */
-    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
-    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
-    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
-    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
-    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
-
-    /* Additional Checks */
-    // "noUnusedLocals": true,                /* Report errors on unused locals. */
-    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
-    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
-    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
-
-    /* Module Resolution Options */
-    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
-    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
-    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
-    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
-    // "typeRoots": [],                       /* List of folders to include type definitions from. */
-    // "types": [],                           /* Type declaration files to be included in compilation. */
-    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
-    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
-    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
-    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
-
-    /* Source Map Options */
-    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
-    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
-    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
-    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
-
-    /* Experimental Options */
-    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
-    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+    "allowImportingTsExtensions": true,
+    "erasableSyntaxOnly": true,
+    "verbatimModuleSyntax": true,
+    "strict": true,
+    "noEmit": true,
+    "types": ["node"]
   }
 }

types/fixturez.d.ts

@@ -1,17 +0,0 @@
-type Opts = {
-  glob?: string | Array<string>;
-  root?: string;
-  cleanup?: boolean;
-};
-
-declare module "fixturez" {
-  export default function (
-    cwd: string,
-    opts?: Opts
-  ): {
-    find: (a: string) => string;
-    temp: () => string;
-    copy: (a: string) => string;
-    cleanup: () => any;
-  };
-}

version/README.md

@@ -0,0 +1,3 @@
+# changesets/action/version
+
+TODO

version/action.yml

@@ -0,0 +1,45 @@
+name: Changesets - Version
+description: Version packages
+runs:
+  using: node24
+  main: ../dist/version.js
+inputs:
+  github-token:
+    description: "The GitHub token to use for authentication. Defaults to the GitHub-provided token."
+    required: false
+    default: ${{ github.token }}
+  script:
+    description: "The command to use to version packages"
+    required: false
+  commit-message:
+    description: "The commit message. Default to `Version Packages`"
+    required: false
+    default: "Version Packages"
+  pr-title:
+    description: "The pull request title. Default to `Version Packages`"
+    required: false
+    default: "Version Packages"
+  pr-draft:
+    description: "Controls draft PR behavior. Use 'create' to create new version PRs as draft, or 'always' to also convert existing version PRs back to draft when updating them."
+    required: false
+  pr-base-branch:
+    description: "Sets the base branch of the PR. Defaults to `github.ref_name`."
+    required: false
+  commit-mode:
+    description: >
+      An enum to specify the commit mode. Use "git-cli" to push changes using the Git CLI,
+      or "github-api" to push changes via the GitHub API. When using "github-api",
+      all commits and tags are signed using GitHub's GPG key and attributed to the user
+      or app who owns the GITHUB_TOKEN.
+    required: false
+    default: "git-cli"
+  setup-git-user:
+    description: Sets up the git user for commits as `"github-actions[bot]"`. Default to `true`
+    required: false
+    default: true
+outputs:
+  pr-number:
+    description: The pull request number that was created or updated
+branding:
+  icon: package
+  color: blue