name: release
on:
  schedule:
    - cron: "0 4 * * *"
  workflow_dispatch:
    inputs:
      args:
        description: Make arguments
        default: release-all
      tag:
        description: Optional release tag (normally auto-detected)

jobs:
  build:
    runs-on: ubuntu-latest
    container: ghcr.io/orbitalquark/textadept-build:v1.0
    outputs:
      version: ${{ steps.build.outputs.version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Git init if necessary
        shell: bash
        run: |
          # If git version is less than 2.18, a git clone will not be made in
          # this container. In that case, make a temporary repository so
          # "make release" can archive the repo's contents for release.
          if [[ -d .git ]]; then exit 0; fi
          git init
          git add .
          git config --global user.email "none@example.com"
          git config --global user.name "none"
          git commit -m 'none'
      - name: Checkout textadept-build dependencies
        uses: actions/checkout@v2
        with:
          repository: orbitalquark/textadept-build
          path: textadept-build
      - name: Checkout textadept-modules
        uses: actions/checkout@v2
        with:
          repository: orbitalquark/textadept-modules
          path: textadept-modules
      - name: Build
        id: build
        shell: bash
        run: |
          # Move cached dependencies into src/.
          mv textadept-build/* src
          rm -r textadept-build

          # Temporarily zip up modules since anything named "textadept*" in root
          # is deleted by "make clean".
          zip -r src/textadept.modules.zip textadept-modules
          rm -r textadept-modules

          # Build.
          if [[ ${{ github.event_name }} != schedule ]]; then
            args="${{ github.event.inputs.args }}"
          else
            args="release-all NIGHTLY=1 DEBUG=1"
          fi
          make -C src $args

          # For nightly builds, strip the date from filenames.
          for file in `ls src/textadept_nightly* 2>/dev/null`; do
            mv $file `echo $file | sed 's/_[0-9]\{4\}\(-[0-9]\{2\}\)\{2\}//;'`
          done

          # Output version information for use in later steps.
          version="${{ github.event.inputs.tag }}"
          if [[ -z $version ]]; then
            version=`ls -1 src/textadept_*.zip | head -1 |
              sed 's/[^_]\+_\(.\+\)\.[^.]\+\.zip/\1/;'`
          fi
          echo "::set-output name=version::$version"

          # Rename and sign modules zip now that the version is known.
          mv src/textadept.modules.zip src/textadept_$version.modules.zip
      - name: Upload artifacts
        uses: actions/upload-artifact@v2
        with:
          name: artifacts
          path: |
            src/textadept_*
            docs/changelog.md
  tag:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Tag
        run: |
          git tag textadept_${{ needs.build.outputs.version }}
          git push -f origin textadept_${{ needs.build.outputs.version }}
  release:
    runs-on: ubuntu-latest
    needs: [build, tag]
    steps:
      - name: Download artifacts
        uses: actions/download-artifact@v2
        with:
          name: artifacts
      - name: Create release log
        shell: bash
        run: |
          echo -n "Textadept " > log.md
          echo -n "${{ needs.build.outputs.version }} " | tr '_' ' ' >> log.md
          echo \(`date +"%d %b %Y"`\) >> log.md
          if [[ ${{ needs.build.outputs.version }} = nightly ]]; then exit 0; fi
          prefix="https://orbitalquark.github.io/textadept"
          echoing=0
          while read line; do
            if [[ $line == \#\#\#* ]]; then
              if [[ $echoing -eq 0 ]]; then
                echoing=1
              else
                exit 0
              fi
            elif [[ $echoing -eq 1 ]]; then
              echo "$line" | grep -v '\(\[Textadept\|Download:\)' |
                sed "s,\(manual\|api\)\.html,$prefix/\0,;" || continue
            fi
          done < docs/changelog.md >> log.md
      - name: Create release
        uses: ncipollo/release-action@v1
        with:
          name: ${{ needs.build.outputs.version }}
          tag: textadept_${{ needs.build.outputs.version }}
          prerelease: ${{ needs.build.outputs.version == 'nightly' }}
          allowUpdates: true
          bodyFile: log.md
          artifacts: src/textadept_*
          token: ${{ secrets.GITHUB_TOKEN }}