name: Build Debian Package

on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      dput:
        description: 'Upload to PPA'
        required: true
        default: false
        type: boolean
      version:
        description: 'Version'
        required: false

env:
  JAVA_VERSION: 19

jobs:
  build:
    name: Build Debian Package
    runs-on: ubuntu-18.04
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Install build tools
        run: |
          sudo apt-get update
          sudo apt-get install debhelper devscripts dput
      - name: Setup Java
        uses: actions/setup-java@v2
        with:
          distribution: 'zulu'
          java-version: ${{ env.JAVA_VERSION }}
          cache: 'maven'
      - id: versions 
        name: Apply version information
        run: |
          if [[ $GITHUB_REF =~ refs/tags/[0-9]+\.[0-9]+\.[0-9]+.* ]]; then
            SEM_VER_STR=${GITHUB_REF##*/}
            mvn versions:set -DnewVersion=${SEM_VER_STR}
          elif [[ "${{ github.event.inputs.version }}" =~ [0-9]+\.[0-9]+\.[0-9]+.* ]]; then
            SEM_VER_STR="${{ github.event.inputs.version }}"
            mvn versions:set -DnewVersion=${SEM_VER_STR}
          else
            SEM_VER_STR=`mvn help:evaluate -Dexpression=project.version -q -DforceStdout`
          fi
          SEM_VER_NUM=`echo ${SEM_VER_STR} | sed -E 's/([0-9]+\.[0-9]+\.[0-9]+).*/\1/'`
          REVCOUNT=`git rev-list --count HEAD`
          echo "::set-output name=semVerStr::${SEM_VER_STR}"
          echo "::set-output name=semVerNum::${SEM_VER_NUM}"
          echo "::set-output name=revNum::${REVCOUNT}"
          echo "::set-output name=ppaVerStr::${SEM_VER_STR/-/\~}-${REVCOUNT}"
      - name: Validate Version
        uses: skymatic/semver-validation-action@v1
        with:
          version: ${{ steps.versions.outputs.semVerStr }}
      - name: Run maven
        run: mvn -B clean package -Pdependency-check,linux -DskipTests
      - name: Create orig.tar.gz with common/ libs/ mods/
        run: |
          mkdir pkgdir
          cp -r target/libs pkgdir
          cp -r target/mods pkgdir
          cp -r dist/linux/common/ pkgdir
          cp target/cryptomator-*.jar pkgdir/mods
          tar -cJf cryptomator_${{ steps.versions.outputs.ppaVerStr }}.orig.tar.xz -C pkgdir .
      - name: Patch and rename pkgdir
        run: |
          cp -r dist/linux/debian/ pkgdir
          export RFC2822_TIMESTAMP=`date --rfc-2822`
          envsubst '${SEMVER_STR} ${VERSION_NUM} ${REVISION_NUM}' < dist/linux/debian/rules > pkgdir/debian/rules
          envsubst '${PPA_VERSION} ${RFC2822_TIMESTAMP}' < dist/linux/debian/changelog > pkgdir/debian/changelog
          find . -name "*.jar" >> pkgdir/debian/source/include-binaries
          mv pkgdir cryptomator_${{ steps.versions.outputs.ppaVerStr }}
        env:
          SEMVER_STR: ${{ steps.versions.outputs.semVerStr }}
          VERSION_NUM: ${{ steps.versions.outputs.semVerNum }}
          REVISION_NUM: ${{ steps.versions.outputs.revNum }}
          PPA_VERSION: ${{ steps.versions.outputs.ppaVerStr }}-0ppa1
      - name: Prepare GPG-Agent for signing with key 615D449FE6E6A235
        run: |
          echo "${GPG_PRIVATE_KEY}" | gpg --batch --quiet --import
          echo "${GPG_PASSPHRASE}" | gpg --batch --quiet --passphrase-fd 0 --pinentry-mode loopback -u 615D449FE6E6A235 --dry-run --sign README.md
        env:
          GPG_PRIVATE_KEY: ${{ secrets.RELEASES_GPG_PRIVATE_KEY }}
          GPG_PASSPHRASE: ${{ secrets.RELEASES_GPG_PASSPHRASE }}
      - name: debuild
        run: |
          debuild -S -sa -d
          debuild -b -sa -d
        env:
          DEBSIGN_PROGRAM: gpg --batch --pinentry-mode loopback
          DEBSIGN_KEYID: 615D449FE6E6A235
        working-directory: cryptomator_${{ steps.versions.outputs.ppaVerStr }}
      - name: Create detached GPG signatures
        run: |
          gpg --batch --quiet --passphrase-fd 0 --pinentry-mode loopback -u 615D449FE6E6A235 --detach-sign -a cryptomator_*_amd64.deb
      - name: Upload artifacts
        uses: actions/upload-artifact@v3
        with:
          name: linux-deb-package
          path: |
            cryptomator_*.dsc
            cryptomator_*.orig.tar.xz
            cryptomator_*.debian.tar.xz
            cryptomator_*_source.buildinfo
            cryptomator_*_source.changes
            cryptomator_*_amd64.deb
            cryptomator_*.asc
      - name: Publish on PPA
        if: startsWith(github.ref, 'refs/tags/') || inputs.dput
        run: dput ppa:sebastian-stenzel/cryptomator-beta cryptomator_*_source.changes
      - name: Publish Debian package on GitHub Releases
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v1
        with:
          fail_on_unmatched_files: true
          token: ${{ secrets.CRYPTOBOT_RELEASE_TOKEN }}
          files: |
            cryptomator_*_amd64.deb
            cryptomator_*.asc