.github/workflows/release.yml

name: Release (golang.go)

# The new release workflow is triggered when a new tag on the release
# branch is pushed.
#
# Note: our canonical repository is in go.googlesource.com/vscode-go and tagging
# will be done in the canonical repository, and mirrored to the github repository.
# A typical workflow is:
#
# 1. A human operator creates a CL to merge the main dev branch to the 'release' branch.
#    CI (GCB builder) will test the CL.
# 2. The CL is reviewed and merged. This triggers the "Long test workflow" (test-long.yml).
# 3. The human operator verifies the "Long test workflow" is green.
#    Otherwise, fix (fix, cherry-pick, review, commit) on the 'release' branch.
# 4. When the 'release' branch reaches to the state ready for the release,
#    the human operator will tag the commig from the canonical repository.
#    (https://go-review.googlesource.com/admin/repos/vscode-go,tags)
#    Stable versions should be in the format of 'vX.X.X' (e.g. v0.15.0)
#    Release candidates should be in the format of 'vX.X.X-rc.X' (e.g. v0.15.0-rc.1)
# 5. The gopherbot will mirror the tag to the GitHub repo, and that push will trigger
#    the 'Release (golang.go)' workflow specified in this file.
#      - For stable version release (vX.X.X), check if the package.json has the matching version.
#      - Packaging using 'vsce package'
#      - Create a release in GitHub
#      - Upload the vsix file as an asset of the release
#      - For stable version release (vX.X.X), upload to the vscode market place

on:
  push:
    tags:
      - v*

jobs:
  release:
    name: create release
    runs-on: ubuntu-latest
    if: github.repository == 'golang/vscode-go'

    steps:
      - name: checkout code
        uses: actions/checkout@v2

      - name: get release version
        id: release_version
        run: |
          TAGGED_VERSION="${GITHUB_REF/refs\/tags\/v/}"

          if [[ ! "${TAGGED_VERSION}" =~ ^[0-9]+\.[0-9]+\.[0-9]+.*$ ]]; then
            echo "Invalid version tag '${TAGGED_VERSION}'"
            exit 1
          fi

          echo "EXT_VERSION=${TAGGED_VERSION}" >> $GITHUB_ENV
          WRITTEN_VERSION="$(cat package.json | jq '.version' -r)"

          if [[ "${TAGGED_VERSION}" == *"-"* ]]; then
            if [[ ! "${TAGGED_VERSION}" == "${WRITTEN_VERSION}"-rc.* ]]; then
              echo "Prerelease Tag and Version in package.json are not compatible: '${TAGGED_VERSION}' vs '${WRITTEN_VERSION}'"
              exit 1
            fi
            echo "EXT_ISPREVIEW=1" >> $GITHUB_ENV
          else
            if [[ "${TAGGED_VERSION}" != "${WRITTEN_VERSION}" ]]; then
              echo "Release Tag and Version in package.json do not match: '${TAGGED_VERSION}' vs '${WRITTEN_VERSION}'"
              exit 1
            fi
            echo "EXT_ISPREVIEW=0" >> $GITHUB_ENV
          fi

      - name: stamp version
        run: |
          cat package.json | jq --arg VER "${{ env.EXT_VERSION }}" '.version=$VER' > /tmp/package.json 
          cp /tmp/package.json ./package.json
          npm ci
          npm run vscode:prepublish

      - name: package
        uses: lannonbr/vsce-action@704da577da0f27de5cdb4ae018374c2f08b5f523
        with:
          args: "package"

      - name: create release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Release ${{ env.EXT_VERSION }}
          draft: false
          prerelease: ${{env.EXT_ISPREVIEW == 1}}

      - name: upload release asset
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: ./go-${{ env.EXT_VERSION }}.vsix
          asset_name: go-${{ env.EXT_VERSION }}.vsix
          asset_content_type: application/zip

      - name: publish
        if: env.EXT_ISPREVIEW != 1 && github.repository == 'golang/vscode-go'
        uses: lannonbr/vsce-action@704da577da0f27de5cdb4ae018374c2f08b5f523
        with:
          args: "publish -p $VSCE_TOKEN"
        env:
          VSCE_TOKEN: ${{ secrets.VSCE_TOKEN }}

# TODO: check if the commit is in green state. (test-long.yml results)
# TODO: after publishing, create a gerrit CL to update 'latest' branch if VERSION is for a stable version.