sync-repos.yaml

on:
  push:
    branches:
      - master
    # Only bother running workflow if files in one of these subfolder have
    # changed since most recent commit to master.
    paths:
      - 'stable/*/**'
      - 'incubator/*/**'
jobs:
  changes:
    runs-on: ubuntu-latest
    outputs:
      stable: ${{ steps.filter.outputs.stable }}
      incubator: ${{ steps.filter.outputs.incubator }}
      stable_dirs: ${{ steps.dirs.outputs.stable_dirs }}
      incubator_dirs: ${{ steps.dirs.outputs.incubator_dirs }}
    steps:
      - uses: actions/checkout@v2
      - uses: dorny/paths-filter@v2.5.0
        id: filter
        with:
          list-files: shell
          filters: |
            stable:
              - added|modified: 'stable/*/**'
            incubator:
              - added|modified: 'incubator/*/**'
      # Exports space-separated lists of changed chart dirs
      #   "xargs -n1" converts to newlines
      #   "cut -d/ -f 1-2" gets the first two dirs (example: stable/wordpress)
      #   "sort -u" gets sorted unique dirs
      #   "xargs" converts back to space-separated string
      - id: dirs
        run: |
          echo "stable files: ${{ steps.filter.outputs.stable_files }}"
          echo "incubator files: ${{ steps.filter.outputs.stable_files }}"
          stable_dirs=$(echo ${{ steps.filter.outputs.stable_files }} | xargs -n1 | cut -d/ -f 1-2 | sort -u | xargs)
          echo "::set-output name=stable_dirs::$stable_dirs"
          echo "stable dirs: $stable_dirs"
          incubator_dirs=$(echo ${{ steps.filter.outputs.incubator_files }} | xargs -n1 | cut -d/ -f 1-2 | sort -u | xargs)
          echo "::set-output name=incubator_dirs::$incubator_dirs"
          echo "incubator dirs: $incubator_dirs"

  package:
    needs: changes
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: package stable
        if: ${{ needs.changes.outputs.stable == 'true' }}
        run: |
          echo "dirs: ${{ needs.changes.outputs.stable_dirs }}"
          mkdir -p ${{ runner.temp }}/stable/packages
          for dir in ${{ needs.changes.outputs.stable_dirs }}; do
              if helm package --dependency-update --destination ${{ runner.temp }}/stable/packages "$dir"; then
                  echo "✅ built dependencies and packaged $dir"
              else
                  echo "❌ unable to build dependencies for $dir"
                  exit 1
              fi
          done
      - uses: actions/upload-artifact@v2
        if: ${{ needs.changes.outputs.stable == 'true' }}
        with:
          name: stable-packages
          path: ${{ runner.temp }}/stable/packages/
      - name: package incubator
        if: ${{ needs.changes.outputs.incubator == 'true' }}
        run: |
          mkdir -p ${{ runner.temp }}/incubator/packages
          for dir in ${{ needs.changes.outputs.incubator_dirs }}; do
              if helm package --dependency-update --destination ${{ runner.temp }}/incubator/packages "$dir"; then
                  echo "✅ built dependencies and packaged $dir"
              else
                  echo "❌ unable to build dependencies for $dir"
                  exit 1
              fi
          done
      - uses: actions/upload-artifact@v2
        if: ${{ needs.changes.outputs.incubator == 'true' }}
        with:
          name: incubator-packages
          path: ${{ runner.temp }}/incubator/packages/

  index-release:
    needs:
      - changes
      - package
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          ref: gh-pages
      - name: configure Git
        run: |
          git config user.name "$GITHUB_ACTOR"
          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
      - uses: actions/download-artifact@v2
        if: ${{ needs.changes.outputs.stable == 'true' }}
        with:
          name: stable-packages
          path: ${{ runner.temp }}/stable/packages
      - name: sync stable
        if: ${{ needs.changes.outputs.stable == 'true' }}
        run: |
          if helm repo index --url https://charts.helm.sh/stable --merge stable/index.yaml ${{ runner.temp }}/stable; then
              mv -f ${{ runner.temp }}/stable/index.yaml stable/index.yaml
              git add stable/index.yaml
          else
              echo "❌ unable to update index"
              exit 1
          fi
          mkdir -p stable/packages
          cp -f ${{ runner.temp }}/stable/packages/*.tgz stable/packages
          git add stable/packages/*.tgz
          git commit --signoff -m "Sync stable [ci skip]"
          git push
      - uses: actions/download-artifact@v2
        if: ${{ needs.changes.outputs.incubator == 'true' }}
        with:
          name: incubator-packages
          path: ${{ runner.temp }}/incubator/packages
      - name: sync incubator
        if: ${{ needs.changes.outputs.incubator == 'true' }}
        run: |
          if helm repo index --url https://charts.helm.sh/incubator --merge incubator/index.yaml ${{ runner.temp }}/incubator; then
              mv -f ${{ runner.temp }}/incubator/index.yaml incubator/index.yaml
              git add incubator/index.yaml
          else
              echo "❌ unable to update index"
              exit 1
          fi
          mkdir -p incubator/packages
          cp -f ${{ runner.temp }}/incubator/packages/*.tgz incubator/packages
          git add incubator/packages/*.tgz
          git commit --signoff -m "Sync incubator [ci skip]"
          git push