release.yaml

on:
  pull_request:
    types:
      - closed
    branches:
      - main

name: Build and publish a release

jobs:
  is_merged_release:
    name: Ensure PR was merged
    if: >
      github.event.pull_request.merged == true
        && contains(github.event.pull_request.labels.*.name, 'release')
    runs-on: ubuntu-latest
    steps:
      - run: |
          echo "This is a canonical hack to run GitHub Actions on merged PRs"
          echo "See: https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#running-your-workflow-when-a-pull-request-merges"

      - name: Comment on PR with link to this action
        uses: peter-evans/create-or-update-comment@v2
        with:
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            [Preparing][preparing] to publish a release.

            [preparing]: ${{ github.server_url }}/${{ github.repository }}/actions/run/${{ github.run_id }}

  build:
    name: Build release artifact
    needs: is_merged_release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Get NPM metadata
        id: npm_metadata
        run: |
          sudo apt-get install jq
          echo "name=$(jq --raw-output '.name' package.json)" >> "$GITHUB_OUTPUT"
          echo "displayName=$(jq --raw-output '.displayName' package.json)" >> "$GITHUB_OUTPUT"
          echo "description=$(jq --raw-output '.description' package.json)" >> "$GITHUB_OUTPUT"
          echo "version=$(jq --raw-output '.version' package.json)" >> "$GITHUB_OUTPUT"

      - name: Build artifact
        run: npm run build

      - name: Tag commit
        uses: mathieudutour/github-tag-action@v6.1
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          commit_sha: ${{ github.event.pull_request.merge_commit_sha }}
          custom_tag: ${{ steps.npm_metadata.outputs.version }}

      - name: Create release
        id: create_release
        uses: softprops/action-gh-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          draft: false
          prerelease: false
          generate_release_notes: false
          tag_name: v${{ steps.npm_metadata.outputs.version }}
          body: |
            # ${{ steps.npm_metadata.outputs.displayName }} v${{ steps.npm_metadata.outputs.version }}

            ${{ steps.npm_metadata.outputs.description }}

            To install, download `${{ steps.npm_metadata.outputs.name }}-${{ steps.npm_metadata.outputs.version }}.vsix`, open a terminal to the download directory, and run

            ```
            code --install-extension ${{ steps.npm_metadata.outputs.name }}-${{ steps.npm_metadata.outputs.version }}.vsix
            ```
          files: |
            ${{ steps.npm_metadata.outputs.name }}-${{ steps.npm_metadata.outputs.version }}.vsix

      - name: Comment on PR with link to the release
        uses: peter-evans/create-or-update-comment@v2
        with:
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            [Release ${{ steps.npm_metadata.outputs.version }}][release] was built and published successfully!

            [release]: ${{ steps.create_release.outputs.url }}

      - name: Publish to Visual Studio Marketplace
        uses: HaaLeo/publish-vscode-extension@v1
        with:
          pat: ${{ secrets.MARKETPLACE_TOKEN }}
          registryUrl: https://marketplace.visualstudio.com
          extensionFile: ${{ steps.npm_metadata.outputs.name }}-${{ steps.npm_metadata.outputs.version }}.vsix