release.yml

permissions:
  contents: write
  
name: Release

on:
  push:
    tags:
      - 'v*' # Run workflow on version tags, e.g. v1.0.0.

jobs:
  release:
    runs-on: ubuntu-latest
    env:
      GRAFANA_API_KEY: ${{ secrets.GRAFANA_API_KEY }} # Requires a Grafana API key from Grafana.com.
    steps:
      - uses: actions/checkout@v3

      - name: Setup Node.js environment
        uses: actions/setup-node@v3
        with:
          node-version: '16'
          cache: 'yarn'

      - name: Setup Go environment
        uses: actions/setup-go@v3
        with:
          go-version: '1.19'

      - name: Install dependencies
        run: yarn install --immutable --prefer-offline

      - name: Build and test frontend
        run: yarn build

      - name: Check for backend
        id: check-for-backend
        run: |
          if [ -f "Magefile.go" ]
          then
            echo "has-backend=true" >> $GITHUB_OUTPUT
          fi

      - name: Test backend
        if: steps.check-for-backend.outputs.has-backend == 'true'
        uses: magefile/mage-action@v2
        with:
          version: latest
          args: coverage

      - name: Build backend
        if: steps.check-for-backend.outputs.has-backend == 'true'
        uses: magefile/mage-action@v2
        with:
          version: latest
          args: buildAll

      - name: Warn missing Grafana API key
        run: |
          echo Please generate a Grafana API key: https://grafana.com/docs/grafana/latest/developers/plugins/sign-a-plugin/#generate-an-api-key
          echo Once done please follow the instructions found here: https://github.com/${{github.repository}}/blob/main/README.md#using-github-actions-release-workflow
        if: ${{ env.GRAFANA_API_KEY == '' }}

      - name: Sign plugin
        run: yarn sign
        if: ${{ env.GRAFANA_API_KEY != '' }}

      - name: Get plugin metadata
        id: metadata
        run: |
          sudo apt-get install jq

          export GRAFANA_PLUGIN_ID=$(cat dist/plugin.json | jq -r .id)
          export GRAFANA_PLUGIN_VERSION=$(cat dist/plugin.json | jq -r .info.version)
          export GRAFANA_PLUGIN_TYPE=$(cat dist/plugin.json | jq -r .type)
          export GRAFANA_PLUGIN_ARTIFACT=${GRAFANA_PLUGIN_ID}-${GRAFANA_PLUGIN_VERSION}.zip
          export GRAFANA_PLUGIN_ARTIFACT_CHECKSUM=${GRAFANA_PLUGIN_ARTIFACT}.md5

          echo "plugin-id=${GRAFANA_PLUGIN_ID}" >> $GITHUB_OUTPUT
          echo "plugin-version=${GRAFANA_PLUGIN_VERSION}" >> $GITHUB_OUTPUT
          echo "plugin-type=${GRAFANA_PLUGIN_TYPE}" >> $GITHUB_OUTPUT
          echo "archive=${GRAFANA_PLUGIN_ARTIFACT}" >> $GITHUB_OUTPUT
          echo "archive-checksum=${GRAFANA_PLUGIN_ARTIFACT_CHECKSUM}" >> $GITHUB_OUTPUT

          echo "github-tag=${GITHUB_REF#refs/*/}" >> $GITHUB_OUTPUT

      - name: Read changelog
        id: changelog
        run: |
          awk '/^## / {s++} s == 1 {print}' CHANGELOG.md > release_notes.md
          echo "path=release_notes.md" >> $GITHUB_OUTPUT

      - name: Check package version
        run: if [ "v${{ steps.metadata.outputs.plugin-version }}" != "${{ steps.metadata.outputs.github-tag }}" ]; then printf "\033[0;31mPlugin version doesn't match tag name\033[0m\n"; exit 1; fi

      - name: Package plugin
        id: package-plugin
        run: |
          mv dist ${{ steps.metadata.outputs.plugin-id }}
          zip ${{ steps.metadata.outputs.archive }} ${{ steps.metadata.outputs.plugin-id }} -r
          md5sum ${{ steps.metadata.outputs.archive }} > ${{ steps.metadata.outputs.archive-checksum }}
          echo "checksum=$(cat ./${{ steps.metadata.outputs.archive-checksum }} | cut -d' ' -f1)" >> $GITHUB_OUTPUT

      - name: Validate plugin
        run: |
          git clone https://github.com/grafana/plugin-validator
          pushd ./plugin-validator/pkg/cmd/plugincheck2
          go install
          popd
          plugincheck2 -config ./plugin-validator/config/default.yaml ${{ steps.metadata.outputs.archive }}

      - name: Create Github release
        uses: softprops/action-gh-release@v1
        with:
          draft: true
          generate_release_notes: true
          files: |
            ./${{ steps.metadata.outputs.archive }}
            ./${{ steps.metadata.outputs.archive-checksum }}
          body: |
            **This Github draft release has been created for your plugin.**

            _Note: if this is the first release for your plugin please consult the [distributing-your-plugin section](https://github.com/${{github.repository}}/blob/main/README.md#distributing-your-plugin) of the README_

            If you would like to submit this release to Grafana please consider the following steps:

            - Check the Validate plugin step in the [release workflow](https://github.com/${{github.repository}}/commit/${{github.sha}}/checks/${{github.run_id}}) for any warnings that need attention
            - Navigate to https://grafana.com/auth/sign-in/ to sign into your account
            - Once logged in click **My Plugins** in the admin navigation
            - Click the **Submit Plugin** button
            - Fill in the Plugin Submission form:
              - Paste this [.zip asset link](https://github.com/${{ github.repository }}/releases/download/v${{ steps.metadata.outputs.plugin-version }}/${{ steps.metadata.outputs.archive }}) in the Plugin URL field
              - Paste this [.zip.md5 link](https://github.com/${{ github.repository }}/releases/download/v${{ steps.metadata.outputs.plugin-version }}/${{ steps.metadata.outputs.archive-checksum }}) in the MD5 field

            Once done please remove these instructions and publish this release.