lsd/.github/workflows/prerelease.yml

name: Prerelease
on:
  push:
    branches:
      - 'main'

jobs:
  prerelease:
    concurrency:
      group: ${{ github.workflow }}
      cancel-in-progress: true

    if: github.actor_id != vars.CI_BOT_ID && !contains(github.event.head_commit.message, format('chore{0} release', ':'))
    runs-on: ubuntu-latest
    steps:
      - id: create_token
        uses: tibdex/github-app-token@v2
        with:
          app_id: ${{ secrets.CI_APP_ID }}
          private_key: ${{ secrets.CI_APP_PRIVATE_KEY }}
          permissions: >-
            { "contents": "write", "statuses": "write" }            

      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          fetch-tags: 1
          token: ${{ steps.create_token.outputs.token }}

      - name: Extract version from lerna.json
        run: echo "value=$(jq .version lerna.json -r)" >> $GITHUB_OUTPUT
        id: current_version

      - name: Determine Prerelease Preid
        shell: bash
        run: echo "value=$([[ ${{ steps.current_version.outputs.value }} =~ beta ]] && echo "beta" || echo "alpha")" >> $GITHUB_OUTPUT
        id: preid

      - uses: actions/setup-node@v3
        with:
          node-version: '18'
          cache: 'yarn'

      - name: Install dependencies
        run: |
          yarn install --frozen-lockfile
          yarn lerna link          

      - name: Check for changed packages
        id: changes
        run: |
          error_filename="${{ runner.temp }}/changes_errors.log";
          changes=$(echo $(yarn -s lerna changed --json --loglevel 2>>$error_filename) 2>>$error_filename);
          cat $error_filename;
          count=$([[ -n $changes ]] && echo $(echo $changes | jq '. | map(select(.private == false)) | length')) || echo 0
          changed=$([[ $changes > 0 ]] && echo "true" || echo "false")
          echo "changes=$count" >> $GITHUB_OUTPUT
          echo "changed=$changed" >> $GITHUB_OUTPUT

          echo "changes: $changes - changed: $changed"          

      - name: Build packages
        run: yarn build

      - name: Publish
        id: publish
        if: ${{ steps.changes.outputs.changed == 'true' }}
        run: |
          git config --global user.name '${{ vars.CI_APP_NAME }}[bot]'
          git config --global user.email '${{ vars.CI_BOT_ID }}+${{ vars.CI_APP_NAME }}[bot]@users.noreply.github.com'
          echo ".npmrc" >> .git/info/exclude
          echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" > .npmrc
          yarn lerna version prerelease --no-private --conventional-commits --conventional-prerelease --preid=${{ steps.preid.outputs.value }} --yes
          yarn lerna publish from-git --summary-file=${{ runner.temp }} --yes          
        env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
          GITHUB_TOKEN: ${{ steps.create_token.outputs.token }}

      # - name: Run release-pr.yaml workflow
      #   if: ${{ steps.changes.outputs.changed == 'true' }}
      #   run: |
      #     tag=$(git describe --tags $(git rev-list --tags --max-count=1))
      #     echo "${{ runner.temp }}/lerna-publish-summary.json";
      #     if [[ -f "${{ runner.temp }}/lerna-publish-summary.json" ]]; then
      #       gh workflow run release-pr.yml --ref $tag;
      #     fi;
      #   env:
      #     GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Get release commit
        if: ${{ steps.changes.outputs.changed == 'true' }}
        shell: bash
        run: echo "sha=$(git rev-parse --verify HEAD)" >> $GITHUB_OUTPUT
        id: release_commit

      - uses: actions/github-script@v6
        if: ${{ steps.changes.outputs.changed == 'true' }}
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const fs = require("fs/promises");
            let summary = null;

            try {
              summary = await fs.readFile(
                "${{ runner.temp }}/lerna-publish-summary.json",
                "utf8"
              );
            } catch {
              console.log("No new releases!");
            }

            if (!summary) return;

            summary = JSON.parse(summary);

            const packages = summary
              .map(
                (pkg) =>
                  `**${pkg.packageName}@${pkg.version}**\n\`\`\`bash\nyarn add ${pkg.packageName}@${pkg.version}\n\`\`\``
              )
              .join("\n");

            const preid = "${{ steps.preid.outputs.value }}";

            github.rest.repos.createCommitComment({
              commit_sha: "${{ steps.release_commit.outputs.sha }}",
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: `🎉 ${preid === 'alpha' ? 'Alpha' : 'Beta'} Release!\n\n${packages}`,
            });