build_webview.sh

#!/usr/bin/env zsh

chromium_version="52.0.2743.98"
clean=0
supported_arch=(arm arm64 x86 x64)

usage() {
    echo "Usage:"
    echo "  build_webview [ options ]"
    echo
    echo "  Options:"
    echo "    -a <arch> Build specified arch"
    echo "    -c Clean"
    echo "    -h Show this message"
    echo "    -r <release> Specify chromium release"
    echo
    echo "  Example:"
    echo "    build_webview -c -r $chromium_version"
    echo
    exit 1
}

build_arm() {
    gn gen out/Default_arm --args=$arm_args
    ninja -C out/Default_arm system_webview_apk
    if [ "$?" -eq 0 ]; then
        cp out/Default_arm/apks/SystemWebView.apk $HOME/android/cm/external/chromium-webview/prebuilt/arm/webview.apk
    fi
}

build_arm64() {
    build_arm
    gn gen out/Default_arm64 --args=$arm64_args
    ninja -C out/Default_arm64 system_webview_apk
    if [ "$?" -eq 0 ]; then
        if [ -f out/Default_arm/apks/SystemWebView.apk ]; then
            python android_webview/tools/apk_merger.py --shared_library libwebviewchromium.so --out_apk $HOME/android/cm/external/chromium-webview/prebuilt/arm64/webview.apk --zipalign_path third_party/android_tools/sdk/build-tools/23.0.1/zipalign --keystore_path build/android/ant/chromium-debug.keystore --key_name chromiumdebugkey --key_password chromium --apk_32bit out/Default_arm/apks/SystemWebView.apk --apk_64bit out/Default_arm64/apks/SystemWebView.apk
        fi
    fi
}

build_x86() {
    gn gen out/Default_x86 --args=$x86_args
    ninja -C out/Default_x86 system_webview_apk
    if [ "$?" -eq 0 ]; then
        cp out/Default_x86/apks/SystemWebView.apk $HOME/android/cm/external/chromium-webview/prebuilt/x86/webview.apk
    fi
}

build_x64() {
    build_x86
    gn gen out/Default_x64 --args=$x64_args
    ninja -C out/Default_x64 system_webview_apk
    if [ "$?" -eq 0 ]; then
        if [ -f out/Default_x86/apks/SystemWebView.apk ]; then
            python android_webview/tools/apk_merger.py --shared_library libwebviewchromium.so --out_apk $HOME/android/cm/external/chromium-webview/prebuilt/x86_64/webview.apk --zipalign_path third_party/android_tools/sdk/build-tools/23.0.1/zipalign --keystore_path build/android/ant/chromium-debug.keystore --key_name chromiumdebugkey --key_password chromium --apk_32bit out/Default_x86/apks/SystemWebView.apk --apk_64bit out/Default_x64/apks/SystemWebView.apk
        fi
    fi
}

while getopts ":a:chr:" opt; do
    case $opt in
        a) for arch in ${supported_arch[@]}; do
               [ "$OPTARG" '==' "$arch" ] && build_arch="$OPTARG" || ((arch_try++))
           done
           if [ $arch_try -eq ${#supported_arch[@]} ]; then
               echo "Unsupported ARCH: $OPTARG"
               echo "Supported ARCHs: ${supported_arch[@]}"
               exit 1
           fi
           ;;
        c) clean=1 ;;
        h) usage ;;
        r) chromium_version="$OPTARG" ;;
        :)
          echo "Option -$OPTARG requires an argument"
          echo
          usage
          ;;
        \?)
          echo "Invalid option: -$OPTARG"
          echo
          usage
          ;;
    esac
done
shift $((OPTIND-1))

# Add depot_tools to PATH
if [ ! -d depot_tools ]; then
    git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
fi
export PATH="$(pwd -P)/depot_tools:$PATH"

# Switch to python2
. $HOME/android/venv/bin/activate

# Sync chromium
export GYP_CHROMIUM_NO_ACTION=1

if [ ! -d src ]; then
    fetch --nohooks android
fi

find src -name index.lock -delete
[ $clean -eq 1 ] && gclient recurse git clean -fdx .
yes | gclient sync --with_branch_heads -R -r $chromium_version
cd src

# Replace webview icon
mkdir -p android_webview/apk/java/res/drawable-xxxhdpi
cp chrome/android/java/res_chromium/mipmap-mdpi/app_icon.png android_webview/apk/java/res/drawable-mdpi/icon_webview.png
cp chrome/android/java/res_chromium/mipmap-hdpi/app_icon.png android_webview/apk/java/res/drawable-hdpi/icon_webview.png
cp chrome/android/java/res_chromium/mipmap-xhdpi/app_icon.png android_webview/apk/java/res/drawable-xhdpi/icon_webview.png
cp chrome/android/java/res_chromium/mipmap-xxhdpi/app_icon.png android_webview/apk/java/res/drawable-xxhdpi/icon_webview.png
cp chrome/android/java/res_chromium/mipmap-xxxhdpi/app_icon.png android_webview/apk/java/res/drawable-xxxhdpi/icon_webview.png

# Build args
args+='target_os="android" is_official_build=true is_debug=false is_component_build=false symbol_level=0 enable_nacl=false remove_webcore_debug_symbols=true'
args+=' android_default_version_name="'$chromium_version'"'
if [ "$USE_CCACHE" -eq 1 ]; then
    export CCACHE_CPP2=yes
    export CCACHE_SLOPPINESS=time_macros
    args+=' cc_wrapper="ccache"'
fi
arm_args=$args' target_cpu="arm" is_clang=false'
arm64_args=$args' target_cpu="arm64" is_clang=false'
x86_args=$args' target_cpu="x86" is_clang=false'
x64_args=$args' target_cpu="x64" is_clang=false'

# Setup environment
rm -rf out
. build/android/envsetup.sh

# Check target and build
if [ -n "$build_arch" ]; then
    build_$build_arch
else
    build_arm64 # arm64 build includes arm
    build_x64   # x64 build includes x86
fi