github_action_build.yml

name: GitHub Action Build

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
  schedule:
    - cron: "15 0 1 */2 *"
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Clone repository
        uses: actions/checkout@v4

      - name: Build
        shell: bash {0}
        run: |
          exit_on_error() { echo "$1"; exit 1; }

          if [ -z "$JAVA_HOME_17_X64" ] || [ ! -f "$JAVA_HOME_17_X64/bin/javac" ] || [ ! -x "$JAVA_HOME_17_X64/bin/javac" ]; then
              exit_on_error "jdk-17 binary not found at path '$JAVA_HOME_17_X64/bin/javac' or is not executable."
          fi

          echo "Setting vars"

          if [ "$GITHUB_EVENT_NAME" == "pull_request" ]; then
              GITHUB_SHA="${{ github.event.pull_request.head.sha }}" # Do not use last merge commit set in GITHUB_SHA
          fi

          # Set RELEASE_VERSION_NAME to "<CURRENT_VERSION_NAME>+<last_commit_hash>"
          CURRENT_VERSION_NAME_REGEX='\s+versionName "([^"]+)"$'
          CURRENT_VERSION_NAME="$(grep -m 1 -E "$CURRENT_VERSION_NAME_REGEX" ./app/build.gradle | sed -r "s/$CURRENT_VERSION_NAME_REGEX/\1/")"
          RELEASE_VERSION_NAME="v$CURRENT_VERSION_NAME+${GITHUB_SHA:0:7}" # The "+" is necessary so that versioning precedence is not affected
          if ! printf "%s" "${RELEASE_VERSION_NAME/v/}" | grep -qP '^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$'; then
            exit_on_error "The release version '${RELEASE_VERSION_NAME/v/}' generated from current version '$CURRENT_VERSION_NAME' is not a valid version as per semantic version '2.0.0' spec in the format 'major.minor.patch(-prerelease)(+buildmetadata)'. https://semver.org/spec/v2.0.0.html."
          fi

          APK_DIR_PATH="./app/build/outputs/apk/debug"
          APK_VERSION_TAG="$RELEASE_VERSION_NAME.github.debug" # Note the ".", GITHUB_SHA will already have "+" before it
          APK_BASENAME_PREFIX="termux-boot-app_$APK_VERSION_TAG"

          # Used by upload step later
          echo "APK_DIR_PATH=$APK_DIR_PATH" >> $GITHUB_ENV
          echo "APK_VERSION_TAG=$APK_VERSION_TAG" >> $GITHUB_ENV
          echo "APK_BASENAME_PREFIX=$APK_BASENAME_PREFIX" >> $GITHUB_ENV

          echo "Building APK file for '$RELEASE_VERSION_NAME' release with '$APK_VERSION_TAG' tag"
          export TERMUX_BOOT_APP_BUILD__APP_VERSION_NAME="${RELEASE_VERSION_NAME/v/}" # Used by app/build.gradle
          export TERMUX_BOOT_APP_BUILD__APK_VERSION_TAG="$APK_VERSION_TAG" # Used by app/build.gradle
          export GRADLE_OPTS="-Dorg.gradle.java.home=$JAVA_HOME_17_X64"
          if ! ./gradlew assembleDebug; then
            exit_on_error "Build failed for '$RELEASE_VERSION_NAME' release with '$APK_VERSION_TAG' tag."
          fi

          echo "Validating APK file"
          if ! test -f "$APK_DIR_PATH/${APK_BASENAME_PREFIX}.apk"; then
            files_found="$(ls "$APK_DIR_PATH")"
            exit_on_error "Failed to find built APK file at '$APK_DIR_PATH/${APK_BASENAME_PREFIX}.apk'. Files found: "$'\n'"$files_found"
          fi

          echo "Generating checksums-sha256.txt file"
          if ! (cd "$APK_DIR_PATH"; sha256sum "${APK_BASENAME_PREFIX}.apk" > checksums-sha256.txt); then
            exit_on_error "Generate checksums-sha256.txt file failed for '$RELEASE_VERSION_NAME' release."
          fi
          echo "checksums-sha256.txt:"$'\n```\n'"$(cat "$APK_DIR_PATH/checksums-sha256.txt")"$'\n```'

      - name: Upload files to action
        uses: actions/upload-artifact@v4
        with:
          name: ${{ env.APK_BASENAME_PREFIX }}
          path: |
            ${{ env.APK_DIR_PATH }}/${{ env.APK_BASENAME_PREFIX }}.apk
            ${{ env.APK_DIR_PATH }}/checksums-sha256.txt
            ${{ env.APK_DIR_PATH }}/output-metadata.json