main.yml

######################################################################################
# JME CI/CD
######################################################################################
# Quick overview of what is going on in this script:
#   - Build natives for android
#   - Merge the natives, build the engine, create the zip release, maven artifacts, javadoc and native snapshot
#   - (only when native code changes) Deploy the natives snapshot to the MinIO instance
#   - (only when building a release) Deploy everything else to github releases and Sonatype
#   - (only when building a release) Update javadoc.jmonkeyengine.org
# Note:
#   All the actions/upload-artifact and actions/download-artifact steps are used to pass
#   stuff between jobs, github actions has some sort of storage that is local to the
#   running workflow, we use it to store the result of each job since the filesystem
#   is not maintained between jobs.
################# CONFIGURATIONS #####################################################
# >> Configure MINIO NATIVES SNAPSHOT
#     OBJECTS_KEY=XXXXXX
# >> Configure SONATYPE RELEASE
#     OSSRH_PASSWORD=XXXXXX
#     OSSRH_USERNAME=XXXXXX
# >> Configure SIGNING
#     SIGNING_KEY=XXXXXX
#     SIGNING_PASSWORD=XXXXXX
# >> Configure  PACKAGE REGISTRY RELEASE
#   Nothing to do here, everything is autoconfigured to work with the account/org that
#   is running the build.
# >> Configure  JAVADOC
#     JAVADOC_GHPAGES_REPO="riccardoblsandbox/javadoc.jmonkeyengine.org.git"
#   Generate a deploy key
#       ssh-keygen -t rsa -b 4096 -C "actions@users.noreply.github.com" -f javadoc_deploy
#   Set
#     JAVADOC_GHPAGES_DEPLOY_PRIVKEY="......."
#   In github repo -> Settings, use javadoc_deploy.pub as Deploy key with write access
######################################################################################
# Resources:
#   - Github actions docs: https://help.github.com/en/articles/about-github-actions
#   - Package registry docs: https://help.github.com/en/articles/about-github-package-registry
#   - Official actions: https://github.com/actions
#   - Community actions: https://github.com/sdras/awesome-actions
######################################################################################
# - Riccardo Balbo
######################################################################################

name: Build jMonkeyEngine
on:
  push:
    branches:
      - master
      - v3.6
      - v3.5
      - v3.4
      - v3.3
  pull_request:
  release:
    types: [published]

jobs:

  # Build the natives on android
  BuildAndroidNatives:
    name: Build natives for android
    runs-on: ubuntu-latest
    container:
      image: jmonkeyengine/buildenv-jme3:android

    steps:
      - name: Clone the repo
        uses: actions/checkout@v3
        with:
          fetch-depth: 1
      - name: Validate the Gradle wrapper
        uses: gradle/wrapper-validation-action@v1.0.5
      - name: Build
        run: |
          ./gradlew -PuseCommitHashAsVersionName=true --no-daemon -PbuildNativeProjects=true \
          :jme3-android-native:assemble

      - name: Upload natives
        uses: actions/upload-artifact@master
        with:
          name: android-natives
          path: build/native

  # Build the engine, we only deploy from ubuntu-latest jdk17
  BuildJMonkey:
    needs: [BuildAndroidNatives]
    name: Build on ${{ matrix.osName }} jdk${{ matrix.jdk }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest,windows-2019,macOS-latest]
        jdk: [8, 11, 17]
        include:
          - os: ubuntu-latest
            osName: linux
            deploy: true
          - os: windows-2019
            osName: windows
            deploy: false
          - os: macOS-latest
            osName: mac
            deploy: false
          - jdk: 8
            deploy: false
          - jdk: 11
            deploy: false

    steps:
      - name: Clone the repo
        uses: actions/checkout@v3
        with:
          fetch-depth: 1

      - name: Setup the java environment
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: ${{ matrix.jdk }}

      - name: Download natives for android
        uses: actions/download-artifact@master
        with:
          name: android-natives
          path: build/native

      - name: Validate the Gradle wrapper
        uses: gradle/wrapper-validation-action@v1.0.5
      - name: Build Engine
        shell: bash
        run: |
          # Build
          ./gradlew -PuseCommitHashAsVersionName=true -PskipPrebuildLibraries=true build

          if [ "${{ matrix.deploy }}" = "true" ];
          then
            # We are going to need "zip"
            sudo apt-get update
            sudo apt-get install -y zip

            # Create the zip release and the javadoc
            ./gradlew -PuseCommitHashAsVersionName=true -PskipPrebuildLibraries=true mergedJavadoc createZipDistribution

            # We prepare the release for deploy
            mkdir -p ./dist/release/
            mv build/distributions/*.zip dist/release/

            # Install maven artifacts to ./dist/maven and sign them if possible
            if [ "${{ secrets.SIGNING_PASSWORD }}" = "" ];
            then
              echo "Configure the following secrets to enable signing:"
              echo "SIGNING_KEY, SIGNING_PASSWORD"

              ./gradlew publishMavenPublicationToDistRepository \
              -PskipPrebuildLibraries=true -PuseCommitHashAsVersionName=true \
              --console=plain --stacktrace
            else
              ./gradlew publishMavenPublicationToDistRepository \
              -PsigningKey='${{ secrets.SIGNING_KEY }}' \
              -PsigningPassword='${{ secrets.SIGNING_PASSWORD }}' \
              -PskipPrebuildLibraries=true -PuseCommitHashAsVersionName=true \
              --console=plain --stacktrace
            fi

            # Zip the natives into a single archive (we are going to use this to deploy native snapshots)
            echo "Create native zip"
            cdir="$PWD"
            cd "build/native"
            zip -r "$cdir/dist/jme3-natives.zip" *
            cd "$cdir"
            echo "Done"
          fi

      # Used later by DeploySnapshot
      - name: Upload merged natives
        if: matrix.deploy==true
        uses: actions/upload-artifact@master
        with:
          name: natives
          path: dist/jme3-natives.zip

      # Upload maven artifacts to be used later by the deploy job
      - name: Upload maven artifacts
        if: matrix.deploy==true
        uses: actions/upload-artifact@master
        with:
          name: maven
          path: dist/maven

      - name: Upload javadoc
        if:  matrix.deploy==true
        uses: actions/upload-artifact@master
        with:
          name: javadoc
          path: dist/javadoc

      # Upload release archive to be used later by the deploy job
      - name: Upload release
        if: github.event_name == 'release' && matrix.deploy==true
        uses: actions/upload-artifact@master
        with:
          name: release
          path: dist/release

  # This job deploys the native snapshot.
  # The snapshot is downloaded when people build the engine without setting buildNativeProject
  # this is useful for people that want to build only the java part and don't have
  # all the stuff needed to compile natives.
  DeployNativeSnapshot:
    needs: [BuildJMonkey]
    name: "Deploy native snapshot"
    runs-on: ubuntu-latest
    if: github.event_name == 'push'
    steps:

      # We clone the repo manually, since we are going to push back a reference to the snapshot
      - name: Clone the repo
        run: |
          branch="${GITHUB_REF//refs\/heads\//}"
          if [ "$branch" != "" ];
          then
            git clone --single-branch --branch "$branch" https://github.com/${GITHUB_REPOSITORY}.git .
          fi

      - name: Download merged natives
        uses: actions/download-artifact@master
        with:
          name: natives
          path: dist/

      - name: Deploy natives snapshot
        run: |
          source .github/actions/tools/minio.sh
          NATIVE_CHANGES="yes"
          branch="${GITHUB_REF//refs\/heads\//}"
          if [ "$branch" != "" ];
          then
            if [ -f "natives-snapshot.properties" ];
            then
              nativeSnapshot=`cat "natives-snapshot.properties"`
              nativeSnapshot="${nativeSnapshot#*=}"

              # We deploy ONLY if GITHUB_SHA (the current commit hash) is newer than $nativeSnapshot
              if [ "`git rev-list --count $nativeSnapshot..$GITHUB_SHA`" = "0" ];
              then
                NATIVE_CHANGES=""
              else
                # We check if the native code changed.
                echo "Detect changes"
                NATIVE_CHANGES="$(git diff-tree --name-only "$GITHUB_SHA" "$nativeSnapshot"  --  jme3-android-native/)"
              fi
            fi

            # We do nothing if there is no change
            if [ "$NATIVE_CHANGES" = "" ];
            then
              echo "No changes, skip."
            else
              if [ "${{ secrets.OBJECTS_KEY }}" = "" ];
              then
                echo "Configure the OBJECTS_KEY secret to enable natives snapshot deployment to MinIO"
              else
                # Deploy natives snapshot to a MinIO instance using function in minio.sh
                minio_uploadFile dist/jme3-natives.zip \
                  native-snapshots/$GITHUB_SHA/jme3-natives.zip \
                  https://objects.jmonkeyengine.org \
                  jmonkeyengine \
                  ${{ secrets.OBJECTS_KEY }}

                # We reference the snapshot by writing its commit hash in  natives-snapshot.properties
                echo "natives.snapshot=$GITHUB_SHA" > natives-snapshot.properties

                # We commit the updated  natives-snapshot.properties
                git config --global user.name "Github Actions"
                git config --global user.email "actions@users.noreply.github.com"

                git add natives-snapshot.properties

                git commit -m "[skip ci] update natives snapshot"

                # Pull rebase from the remote repo, just in case there was a push in the meantime
                git pull -q --rebase

                # We need to calculate the header for git authentication
                header=$(echo -n "ad-m:${{ secrets.GITHUB_TOKEN }}" | base64)

                # Push
                (git -c http.extraheader="AUTHORIZATION: basic $header" push origin "$branch" || true)

              fi
            fi
          fi

  # This job deploys snapshots on the master branch
  DeployJavaSnapshot:
    needs: [BuildJMonkey]
    name: Deploy Java Snapshot
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && github.ref_name == 'master'
    steps:

      # We need to clone everything again for uploadToMaven.sh ...
      - name: Clone the repo
        uses: actions/checkout@v3
        with:
          fetch-depth: 1

      # Setup jdk 17 used for building Maven-style artifacts
      - name: Setup the java environment
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: '17'

      - name: Download natives for android
        uses: actions/download-artifact@master
        with:
          name: android-natives
          path: build/native

      - name: Rebuild the maven artifacts and deploy them to the Sonatype repository
        run: |
          if [ "${{ secrets.OSSRH_PASSWORD }}" = "" ];
          then
            echo "Configure the following secrets to enable deployment to Sonatype:"
            echo "OSSRH_PASSWORD, OSSRH_USERNAME, SIGNING_KEY, SIGNING_PASSWORD"
          else
            ./gradlew publishMavenPublicationToSNAPSHOTRepository \
            -PossrhPassword=${{ secrets.OSSRH_PASSWORD }} \
            -PossrhUsername=${{ secrets.OSSRH_USERNAME }} \
            -PsigningKey='${{ secrets.SIGNING_KEY }}' \
            -PsigningPassword='${{ secrets.SIGNING_PASSWORD }}' \
            -PuseCommitHashAsVersionName=true \
            --console=plain --stacktrace
          fi


  # This job deploys the release
  DeployRelease:
    needs: [BuildJMonkey]
    name: Deploy Release
    runs-on: ubuntu-latest
    if: github.event_name == 'release'
    steps:

      # We need to clone everything again for uploadToMaven.sh ...
      - name: Clone the repo
        uses: actions/checkout@v3
        with:
          fetch-depth: 1

      # Setup jdk 17 used for building Sonatype OSSRH artifacts
      - name: Setup the java environment
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: '17'

      # Download all the stuff...
      - name: Download maven artifacts
        uses: actions/download-artifact@master
        with:
          name: maven
          path: dist/maven

      - name: Download release
        uses: actions/download-artifact@master
        with:
          name: release
          path: dist/release

      - name: Download natives for android
        uses: actions/download-artifact@master
        with:
          name: android-natives
          path: build/native

      - name: Rebuild the maven artifacts and deploy them to Sonatype OSSRH
        run: |
          if [ "${{ secrets.OSSRH_PASSWORD }}" = "" ];
          then
            echo "Configure the following secrets to enable deployment to Sonatype:"
            echo "OSSRH_PASSWORD, OSSRH_USERNAME, SIGNING_KEY, SIGNING_PASSWORD"
          else
            ./gradlew publishMavenPublicationToOSSRHRepository \
            -PossrhPassword=${{ secrets.OSSRH_PASSWORD }} \
            -PossrhUsername=${{ secrets.OSSRH_USERNAME }} \
            -PsigningKey='${{ secrets.SIGNING_KEY }}' \
            -PsigningPassword='${{ secrets.SIGNING_PASSWORD }}' \
            -PuseCommitHashAsVersionName=true \
            --console=plain --stacktrace
          fi

      - name: Deploy to GitHub Releases
        run: |
          # We need to get the release id (yeah, it's not the same as the tag)
          echo "${GITHUB_EVENT_PATH}"
          cat ${GITHUB_EVENT_PATH}
          releaseId=$(jq --raw-output '.release.id' ${GITHUB_EVENT_PATH})

          # Now that we have the id, we just upload the release zip from before
          echo "Upload to release $releaseId"
          filename="$(ls dist/release/*.zip)"
          url="https://uploads.github.com/repos/${GITHUB_REPOSITORY}/releases/$releaseId/assets?name=$(basename $filename)"
          echo "Upload to $url"
          curl -L \
          -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
          -H "Content-Type: application/zip" \
          --data-binary @"$filename" \
          "$url"

      - name: Deploy to github package registry
        run: |
          source .github/actions/tools/uploadToMaven.sh
          registry="https://maven.pkg.github.com/$GITHUB_REPOSITORY"
          echo "Deploy to github package registry $registry"
          uploadAllToMaven dist/maven/ $registry "token" ${{ secrets.GITHUB_TOKEN }}

  # Deploy the javadoc
  DeployJavaDoc:
    needs: [BuildJMonkey]
    name: Deploy Javadoc
    runs-on: ubuntu-latest
    if: github.event_name == 'release'
    steps:

      # We are going to need a deploy key for this, since we need
      # to push to a different repo
      - name: Set ssh key
        run: |
          mkdir -p ~/.ssh/
          echo "${{ secrets.JAVADOC_GHPAGES_DEPLOY_PRIVKEY }}" > $HOME/.ssh/deploy.key
          chmod 600 $HOME/.ssh/deploy.key

      # We clone the javadoc repo
      - name: Clone gh-pages
        run: |
          branch="gh-pages"
          export GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i $HOME/.ssh/deploy.key"
          git clone --single-branch --branch "$branch" git@github.com:${{ secrets.JAVADOC_GHPAGES_REPO }} .

      # Download the javadoc in the new directory "newdoc"
      - name: Download javadoc
        uses: actions/download-artifact@master
        with:
          name: javadoc
          path: newdoc

      # The actual deploy
      - name: Deploy to github pages
        run: |
          set -f
          IFS=$'\n'

          # Get the tag for this release
          version="`if [[ $GITHUB_REF == refs\/tags* ]]; then echo ${GITHUB_REF//refs\/tags\//}; fi`"

          # If there is no tag, then we do nothing.
          if [ "$version" != "" ];
          then
            echo "Deploy as $version"

            # Remove any older version of the javadoc for this tag
            if [ -d "$version" ];then rm -Rf "$version"; fi

            # Rename newdoc with the version name
            mv newdoc "$version"

            # if there isn't an index.txt we create one (we need this to list the versions)
            if [ ! -f "index.txt" ]; then echo "" > index.txt ; fi
            index="`cat index.txt`"

            # Check if this version is already in index.txt
            addNew=true
            for v in $index;
            do
              if [ "$v" = "$version" ];
              then
                echo "$v" "$version"
                addNew=false
                break
              fi
            done

            # If not, we add it to the beginning
            if [ "$addNew" = "true" ];
            then
              echo -e "$version\n$index" > index.txt
              index="`cat index.txt`"
            fi

            # Regenerate the pages
            chmod +x make.sh
            ./make.sh

            # Configure git to use the deploy key
            export GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i $HOME/.ssh/deploy.key"

            # Commit the changes
            git config --global user.name "Github Actions"
            git config --global user.email "actions@users.noreply.github.com"

            git add . || true
            git commit -m "$version" || true

            branch="gh-pages"
            git push origin "$branch" --force || true

          fi