action.yml

name: "Build Signed APK"
description: "Build a signed APK of your Android application"

branding:
  icon: cpu
  color: red

inputs:

  keystore_b64:
    description: "The contents of the keystore file, encoded as base64"
    required: false

  keystore_file:
    description: "The path to the .jks keystore file"
    required: false

  keystore_password:
    description: "Keystore file password"
    required: true

  key_alias:
    description: "Key alias"
    required: true

  key_password:
    description: "Key password"
    required: true

  gradlew_dir:
    description: "Directory of the gradlew file"
    required: false
    default: "."

  java_version:
    description: "Java version to build the project with"
    required: false
    default: '11'

runs:
  using: "composite"
  steps:

    - name: Setup Android SDK
      uses: android-actions/setup-android@v2

    - name: Write keystore file from content
      if: inputs.keystore_b64
      shell: bash
      run: echo "${{ inputs.keystore_b64 }}" | base64 -d > "$GITHUB_WORKSPACE/signing-key.jks"

    - name: Copy keystore file to right location
      if: inputs.keystore_file && !inputs.keystore_b64
      shell: bash
      run: cp "${{ inputs.keystore_file }}" "$GITHUB_WORKSPACE/signing-key.jks"

    - name: Build APK
      shell: bash
      working-directory: ${{ inputs.gradlew_dir }}
      run: |
        export JAVA_HOME="/usr/lib/jvm/temurin-${{ inputs.java_version }}-jdk-amd64"
        chmod +x ./gradlew
        ./gradlew build --no-daemon
        ./gradlew assembleRelease --no-daemon \
          -Pandroid.injected.signing.store.file="$GITHUB_WORKSPACE/signing-key.jks" \
          -Pandroid.injected.signing.store.password="${{ inputs.keystore_password }}" \
          -Pandroid.injected.signing.key.alias="${{ inputs.key_alias }}" \
          -Pandroid.injected.signing.key.password="${{ inputs.key_password }}"

    - shell: bash
      run: rm "$GITHUB_WORKSPACE/signing-key.jks"