name: AppImage Build
on:
  push:
    branches:
      - dev
      - releases
    tags:
      - '[0-9]+.*'
  pull_request:
    branches:
      - dev
  workflow_dispatch:
jobs:
  build:
    runs-on: ubuntu-18.04
    strategy:
      fail-fast: false
      matrix:
        build_type: [release]
    steps:
      - name: Checkout source
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Install dependencies
        run: |
          echo "Running apt update."
          sudo apt update
          echo "Installing dependencies with apt."
          DEBIAN_FRONTEND=noninteractive sudo apt install -y cmake libgtk-3-dev libgtkmm-3.0-dev liblensfun-dev librsvg2-dev liblcms2-dev libfftw3-dev libiptcdata0-dev libtiff5-dev libcanberra-gtk3-dev liblensfun-bin

      - name: Configure build
        run: |
          export REF_NAME_FILTERED="$(echo '${{github.ref_name}}' | sed 's/[^A-z0-9_.-]//g')"

          echo "Setting cache suffix."
          if [ '${{github.ref_type}}' == 'tag' ]; then
            export CACHE_SUFFIX=""
          else
            export CACHE_SUFFIX="5-$REF_NAME_FILTERED"
          fi
          export CACHE_SUFFIX="$CACHE_SUFFIX-AppImage"
          echo "Cache suffix is '$CACHE_SUFFIX'."

          echo "Making build directory."
          mkdir build
          echo "Changing working directory to the build directory."
          cd build

          echo "Running CMake configure."
          cmake \
            -DCMAKE_BUILD_TYPE='${{matrix.build_type}}'  \
            -DCACHE_NAME_SUFFIX="$CACHE_SUFFIX" \
            -DPROC_TARGET_NUMBER="1" \
            -DBUILD_BUNDLE="ON" \
            -DBUNDLE_BASE_INSTALL_DIR="/" \
            -DOPTION_OMP="ON" \
            -DWITH_LTO="OFF" \
            -DWITH_PROF="OFF" \
            -DWITH_SAN="OFF" \
            -DWITH_SYSTEM_KLT="OFF" \
            -DCMAKE_INSTALL_PREFIX=/usr \
            -DLENSFUNDBDIR="../share/lensfun/version_1" \
            ..

          echo "Recording filtered ref name."
          echo "REF_NAME_FILTERED=$REF_NAME_FILTERED" >> $GITHUB_ENV

      - name: Build RawTherapee
        working-directory: ./build
        run: |
          echo "Running make install."
          make -j$(nproc) install DESTDIR=AppDir/usr/bin
          echo "Moving usr/bin/share to usr/share."
          mv AppDir/usr/bin/share AppDir/usr/

      - name: Include Lensfun
        run: |
          echo "Patching lensfun-update-data script."
          sudo sed -i 's/HTTPError\(, ValueError\)/URLError\1/' $(which lensfun-update-data)
          echo "Updating Lensfun database."
          lensfun-update-data
          echo "Creating Lensfun directory in the build directory."
          mkdir -p build/AppDir/usr/share/lensfun
          echo "Copying Lensfun database to the build directory."
          cp -R ~/.local/share/lensfun/updates/* build/AppDir/usr/share/lensfun/

      - name: Restore AppImage tools from cache
        id: appimage-tools-cache
        uses: actions/cache@v2
        with:
          key: appimage-tools-1
          path: |
            ./build/linuxdeploy-x86_64.AppImage
            ./build/linuxdeploy-plugin-gtk.sh

      - name: Download AppImage tools
        if: ${{steps.appimage-tools-cache.outputs.cache-hit != 'true'}}
        working-directory: ./build
        run: |
          echo "Downloading linuxdeploy."
          curl --location 'https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage' > linuxdeploy-x86_64.AppImage
          echo "Downloading GTK plugin for linuxdeploy."
          curl --location 'https://raw.githubusercontent.com/linuxdeploy/linuxdeploy-plugin-gtk/master/linuxdeploy-plugin-gtk.sh' \
            | sed 's/^\(export GTK_THEME\)/#\1/' \
            > linuxdeploy-plugin-gtk.sh
          echo "Setting execute bit on all AppImage tools."
          chmod u+x linuxdeploy-*

      - name: Package AppImage
        working-directory: ./build
        run: |
          echo "Creating artifact name."
          if [ '${{github.ref_type}}' == 'tag' ]; then
            ARTIFACT_NAME="RawTherapee_${REF_NAME_FILTERED}_${{matrix.build_type}}"
          else
            echo "Getting RawTherapee version."
            export VERSION="$(grep -m 1 '^Version: .*$' 'AboutThisBuild.txt' | sed 's/^Version: \(.\+\)$/\1/')"
            echo "Version is '$VERSION'."
            FILTERED_VERSION="$(echo "$VERSION" | sed 's/[^A-z0-9_.-]//g')"
            ARTIFACT_NAME="RawTherapee_${REF_NAME_FILTERED}_${FILTERED_VERSION}_${{matrix.build_type}}"
          fi
          echo "Artifact name is '$ARTIFACT_NAME'."

          echo "Generating AppImage file name."
          export OUTPUT="$ARTIFACT_NAME.AppImage"
          echo "AppImage file name will be '$OUTPUT'."

          echo "Packaging AppImage."
          ./linuxdeploy-x86_64.AppImage \
            --appimage-extract-and-run \
            --appdir AppDir \
            --plugin gtk \
            --output appimage

          echo "Recording artifact name."
          echo "ARTIFACT_NAME=$ARTIFACT_NAME" >> $GITHUB_ENV

      - name: Upload artifacts
        uses: actions/upload-artifact@v2
        with:
          name: ${{env.ARTIFACT_NAME}}.AppImage
          path: ${{github.workspace}}/build/${{env.ARTIFACT_NAME}}.AppImage

      - name: Prepare for publishing
        if: ${{github.ref_type == 'tag' || github.ref_name == 'dev'}}
        run: |
          echo "Setting publish name."
          PUBLISH_NAME="RawTherapee_${REF_NAME_FILTERED}_${{matrix.build_type}}"
          echo "Publish name is '$PUBLISH_NAME'."

          echo "Renaming AppImage."
          cp "build/$ARTIFACT_NAME.AppImage" "$PUBLISH_NAME.AppImage"

          echo "Creating version file."
          cp "build/AboutThisBuild.txt" "$PUBLISH_NAME-AboutThisBuild.txt"

          echo "Recording publish name."
          echo "PUBLISH_NAME=$PUBLISH_NAME" >> $GITHUB_ENV

      - name: Publish artifacts
        uses: softprops/action-gh-release@v1
        if: ${{github.ref_type == 'tag' || github.ref_name == 'dev'}}
        with:
          tag_name: nightly-github-actions
          files: |
            ${{env.PUBLISH_NAME}}.AppImage
            ${{env.PUBLISH_NAME}}-AboutThisBuild.txt