Autobuild: Combine and simplify Android build scripts

.github/autobuild/android.sh

@@ -0,0 +1,112 @@
+#!/bin/bash
+set -eu
+
+COMMANDLINETOOLS_VERSION=6858069
+ANDROID_NDK_VERSION=r21d
+ANDROID_PLATFORM=android-30
+ANDROID_BUILD_TOOLS=30.0.2
+AQTINSTALL_VERSION=2.0.6
+QT_VERSION=5.15.2
+
+# Only variables which are really needed by sub-commands are exported.
+# Definitions have to stay in a specific order due to dependencies.
+QT_BASEDIR="/opt/Qt"
+ANDROID_BASEDIR="/opt/android"
+BUILD_DIR=build
+export ANDROID_SDK_ROOT="${ANDROID_BASEDIR}/android-sdk"
+COMMANDLINETOOLS_DIR="${ANDROID_SDK_ROOT}"/cmdline-tools/latest/
+ANDROID_NDK_ROOT="${ANDROID_BASEDIR}/android-ndk"
+ANDROID_NDK_HOST="linux-x86_64"
+ANDROID_SDKMANAGER="${COMMANDLINETOOLS_DIR}/bin/sdkmanager"
+export JAVA_HOME="/usr/lib/jvm/java-8-openjdk-amd64/"
+export PATH="${PATH}:${ANDROID_SDK_ROOT}/tools"
+export PATH="${PATH}:${ANDROID_SDK_ROOT}/platform-tools"
+
+if [[ ! ${jamulus_buildversionstring:-} =~ [0-9]+\.[0-9]+\.[0-9]+ ]]; then
+    echo "Environment variable jamulus_buildversionstring has to be set to a valid version string"
+    exit 1
+fi
+
+setup_ubuntu_dependencies() {
+    export DEBIAN_FRONTEND="noninteractive"
+
+    sudo apt-get -qq update
+    sudo apt-get -qq --no-install-recommends -y install build-essential zip unzip bzip2 p7zip-full curl chrpath openjdk-8-jdk-headless
+}
+
+setup_android_sdk() {
+    mkdir -p "${ANDROID_BASEDIR}"
+
+    if [[ -d "${COMMANDLINETOOLS_DIR}" ]]; then
+        echo "Using commandlinetools installation from previous run (actions/cache)"
+    else
+        mkdir -p "${COMMANDLINETOOLS_DIR}"
+        curl -s -o downloadfile "https://dl.google.com/android/repository/commandlinetools-linux-${COMMANDLINETOOLS_VERSION}_latest.zip"
+        unzip -q downloadfile
+        mv cmdline-tools/* "${COMMANDLINETOOLS_DIR}"
+    fi
+
+    yes | "${ANDROID_SDKMANAGER}" --licenses
+    "${ANDROID_SDKMANAGER}" --update
+    "${ANDROID_SDKMANAGER}" "platforms;${ANDROID_PLATFORM}"
+    "${ANDROID_SDKMANAGER}" "build-tools;${ANDROID_BUILD_TOOLS}"
+}
+
+setup_android_ndk() {
+    mkdir -p "${ANDROID_BASEDIR}"
+    if [[ -d "${ANDROID_NDK_ROOT}" ]]; then
+        echo "Using NDK installation from previous run (actions/cache)"
+    else
+        curl -s -o downloadfile "https://dl.google.com/android/repository/android-ndk-${ANDROID_NDK_VERSION}-linux-x86_64.zip"
+        unzip -q downloadfile
+        mv "android-ndk-${ANDROID_NDK_VERSION}" "${ANDROID_NDK_ROOT}"
+    fi
+}
+
+setup_qt() {
+    if [[ -d "${QT_BASEDIR}" ]]; then
+        echo "Using Qt installation from previous run (actions/cache)"
+    else
+        echo "Installing Qt..."
+        python3 -m pip install "aqtinstall==${AQTINSTALL_VERSION}"
+        python3 -m aqt install-qt --outputdir "${QT_BASEDIR}" linux android "${QT_VERSION}" \
+            --archives qtbase qttools qttranslations qtandroidextras
+    fi
+}
+
+build_app_as_apk() {
+    QT_DIR="${QT_BASEDIR}/${QT_VERSION}/android"
+    MAKE="${ANDROID_NDK_ROOT}/prebuilt/${ANDROID_NDK_HOST}/bin/make"
+
+    "${QT_DIR}/bin/qmake" -spec android-clang
+    "${MAKE}" -j "$(nproc)"
+    "${MAKE}" INSTALL_ROOT="${BUILD_DIR}" -f Makefile install
+    "${QT_DIR}"/bin/androiddeployqt --input android-Jamulus-deployment-settings.json --output "${BUILD_DIR}" \
+        --android-platform "${ANDROID_PLATFORM}" --jdk "${JAVA_HOME}" --gradle
+}
+
+pass_artifact_to_job() {
+    mkdir deploy
+    artifact_deploy_filename="jamulus_${jamulus_buildversionstring}_android.apk"
+    echo "Moving ${BUILD_DIR}/build/outputs/apk/debug/build-debug.apk to deploy/${artifact_deploy_filename}"
+    mv "./${BUILD_DIR}/build/outputs/apk/debug/build-debug.apk" "./deploy/${artifact_deploy_filename}"
+    echo "::set-output name=artifact_1::${artifact_deploy_filename}"
+}
+
+case "${1:-}" in
+    setup)
+        setup_ubuntu_dependencies
+        setup_android_ndk
+        setup_android_sdk
+        setup_qt
+        ;;
+    build)
+        build_app_as_apk
+        ;;
+    get-artifacts)
+        pass_artifact_to_job
+        ;;
+    *)
+        echo "Unknown stage '${1:-}'"
+        exit 1
+esac

.github/workflows/autobuild.yml

@@ -87,9 +87,9 @@ jobs:
           - config_name:            Android .apk (artifact+codeQL)
             target_os:              android
             building_on_os:         ubuntu-20.04
-            cmd1_prebuild:          "./autobuild/android/autobuild_apk_1_prepare.sh"
-            cmd2_build:             "./autobuild/android/autobuild_apk_2_build.sh"
-            cmd3_postbuild:         "./autobuild/android/autobuild_apk_3_copy_files.sh"
+            cmd1_prebuild:          "./.github/autobuild/android.sh setup"
+            cmd2_build:             "./.github/autobuild/android.sh build"
+            cmd3_postbuild:         "./.github/autobuild/android.sh get-artifacts"
             run_codeql:             true
             # Jamulus.pro needs to count git history length for android versioning:
             checkout_fetch_depth:   '0'
@@ -196,7 +196,7 @@ jobs:
             /opt/Qt
             /opt/android/android-sdk
             /opt/android/android-ndk
-          key:                      ${{ matrix.config.target_os }}-${{ hashFiles('.github/workflows/autobuild.yml', 'autobuild/android/autobuild_apk_1_prepare.sh', 'autobuild/android/install-qt.sh') }}-${{ matrix.config.cmd1_prebuild }}
+          key:                      ${{ matrix.config.target_os }}-${{ hashFiles('.github/workflows/autobuild.yml', '.github/autobuild/android.sh') }}-${{ matrix.config.cmd1_prebuild }}
 
       - name:                       Set up build dependencies for ${{ matrix.config.config_name }}
         if:                         matrix.config.cmd1_prebuild