changeset-snapshot.yml

name: Changeset Snapshot

on:
  issue_comment:
    types:
      - created

concurrency: ${{ github.workflow }}-${{ github.ref }}

jobs:
  snapshot:
    name: Snapshot Release
    if: |
      github.event.issue.pull_request &&
      (startsWith(github.event.comment.body, '/snapit'))
    runs-on: ubuntu-latest
    steps:
      - name: Enforce permission requirement
        uses: prince-chrismc/check-actor-permissions-action@ce04efab4f468664a0ae6d9cc0c14e4a4e6cd70a # v3.0.1
        with:
          permission: write

      - name: Add initial reaction
        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4.0.0
        with:
          token: ${{ secrets.CHANGESETS_TOKEN }}
          comment-id: ${{ github.event.comment.id }}
          reactions: eyes

      - name: Validate pull request
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea #v7.0.1
        id: pr_data
        env:
          GITHUB_TOKEN: ${{ secrets.CHANGESETS_TOKEN }}
        with:
          script: |
            try {
              const pullRequest = await github.rest.pulls.get({
                owner: context.repo.owner,
                repo: context.repo.repo,
                pull_number: context.issue.number,
              });

              // Pull request from fork
              if (context.payload.repository.full_name !== pullRequest.data.head.repo.full_name) {
                const errorMessage = '`/snapit` is not supported on pull requests from forked repositories.';

                await github.rest.issues.createComment({
                  issue_number: context.issue.number,
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  body: errorMessage,
                });

                core.setFailed(errorMessage);
              }
            } catch (err) {
              core.setFailed(`Request failed with error ${err}`);
            }

      - name: Add link to build
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        id: build-link
        env:
          GITHUB_TOKEN: ${{ secrets.CHANGESETS_TOKEN }}
        with:
          github-token: ${{ secrets.CHANGESETS_TOKEN }}
          script: |
            try {
              const buildLink = '${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}';

              const body = `Starting a new snapshot build. You can view the logs [here](${buildLink}).`;

              await github.rest.issues.createComment({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body,
              });
            } catch (err) {
              core.setFailed(`Request failed with error ${err}`);
            }

       # issue_comment event doesn't provide access to head_ref env var.
       # This action provides us with the env vars we need to do a git diff.
       # https://github.com/actions/checkout/issues/331#issuecomment-1242708547
      - uses: xt0rted/pull-request-comment-branch@d97294d304604fa98a2600a6e2f916a84b596dc7 # v2.0.0
        id: comment-branch

      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      # issue_comment requires us to checkout the branch
      # https://github.com/actions/checkout/issues/331#issuecomment-1120113003
      - name: Checkout pull request branch
        run: gh pr checkout ${{ github.event.issue.number }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup Repo
        uses: ./.github/actions/setup-repo
        with:
          node-version: 20
          os: ubuntu-latest

      - name: Create an .npmrc
        env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: |
          cat << EOF > "$HOME/.npmrc"
            //registry.npmjs.org/:_authToken=$NPM_TOKEN
          EOF

      - name: Build Packages
        uses: ./.github/actions/run-script
        env:
          TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
        with:
          script-name: "build"

      - name: Get Markdown Changeset Files Difference
        id: diff_changeset_files
        run: |
            git fetch origin ${{ steps.comment-branch.outputs.base_ref }}
            git diff --name-only origin/${{ steps.comment-branch.outputs.base_ref }}...HEAD .changeset/*.md > changeset_diff.txt

      - name: Delete Unrelated Markdown Files in Changeset
        run: |
            for file in $(ls .changeset/*.md); do
              if ! grep -q "$(basename $file)" changeset_diff.txt; then
                rm "$file"
              fi
            done

      - name: Create and publish snapshot release
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
        env:
          GITHUB_TOKEN: ${{ secrets.CHANGESETS_TOKEN }}
        with:
          github-token: ${{ secrets.CHANGESETS_TOKEN }}
          script: |
            const execa = require('execa');
            const script = require('./.github/workflows/changeset-snapshot/create-and-publish.js')
            await script({ github, context }, execa);

      - name: Add failure comment
        if: failure()
        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4.0.0
        with:
          issue-number: ${{ github.event.issue.number }}
          token: ${{ secrets.CHANGESETS_TOKEN }}
          body: The build failed, please see the [logs](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) or take a look at the [Workflow Tooling wiki page](https://github.com/justeattakeaway/pie/wiki/Workflow-Tooling#snapshot-releases) to make sure your PR meets the requirements.