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initial flutter android build

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This commit is contained in:
Zach Russell 2026-03-20 12:15:10 -06:00
commit 91516c2f20
5 changed files with 96 additions and 16 deletions
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82
hook/build.dart
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@ -6,8 +6,12 @@ Future<void> main(List<String> args) => build(args, (input, output) async {
final buildDir = input.packageRoot.resolve("src/");
if (await File(buildDir.resolve("lock").toFilePath()).exists()) return;
final targetOS = input.config.code.targetOS;
final codeConfig = input.config.code;
final targetOS = codeConfig.targetOS;
final targetArch = codeConfig.targetArchitecture;
String libFileName;
Map<String, String> env = {};
switch (targetOS) {
case OS.linux:
libFileName = "libgomuks.so";
@ -18,20 +22,51 @@ Future<void> main(List<String> args) => build(args, (input, output) async {
case OS.windows:
libFileName = "libgomuks.dll";
break;
case OS.android:
libFileName = "libgomuks.so";
final targetNdkApi = codeConfig.android.targetNdkApi;
final ndkHome = Platform.environment["ANDROID_NDK_HOME"]
?? Platform.environment["ANDROID_NDK_ROOT"]
?? Platform.environment["NDK_HOME"]
?? await _findNdkFromSdk();
if (ndkHome == null) {
throw Exception(
"Could not find Android NDK. Set ANDROID_NDK_HOME or install via sdkmanager.",
);
}
final hostTag = _ndkHostTag();
final (goArch, ccTriple) = _androidArch(targetArch);
final cc = "$ndkHome/toolchains/llvm/prebuilt/$hostTag/bin/$ccTriple$targetNdkApi-clang";
env = {
"CGO_ENABLED": "1",
"GOOS": "android",
"GOARCH": goArch,
"CC": cc,
};
break;
default:
throw UnsupportedError("Unsupported OS: $targetOS");
}
final gomuksBuildDir = buildDir.resolve("gomuks/");
final libFile = gomuksBuildDir.resolve(libFileName);
final libFile = gomuksBuildDir.resolve("${targetArch.name}/$libFileName");
print("Building Gomuks shared library $libFileName from source...");
// goheif/dav1d supported on Android would need to fix upstream
final tags = targetOS == OS.android ? "goolm,noheic" : "goolm";
print("Building Gomuks shared library $libFileName (${targetOS.name}/${targetArch.name}) from source...");
final result = await Process.run("go", [
"build",
"-tags", tags,
"-o",
libFile.path,
"-buildmode=c-shared",
], workingDirectory: gomuksBuildDir.resolve("source/pkg/ffi/").toFilePath());
], workingDirectory: gomuksBuildDir.resolve("source/pkg/ffi/").toFilePath(),
environment: env.isNotEmpty ? env : null);
if (result.exitCode != 0) {
throw Exception("Failed to build Gomuks shared library\n${result.stderr}");
@ -52,3 +87,42 @@ Future<void> main(List<String> args) => build(args, (input, output) async {
..dependencies.add(gomuksBuildDir);
print("Done!");
});
Future<String?> _findNdkFromSdk() async {
// pretty sure this wont be needed with nix, i'll get this removed
final androidHome = Platform.environment["ANDROID_HOME"]
?? Platform.environment["ANDROID_SDK_ROOT"];
if (androidHome == null) return null;
final ndkDir = Directory("$androidHome/ndk");
if (!await ndkDir.exists()) return null;
final versions = await ndkDir.list().toList();
if (versions.isEmpty) return null;
versions.sort((a, b) => a.path.compareTo(b.path));
return versions.last.path;
}
String _ndkHostTag() {
if (Platform.isMacOS) {
return "darwin-x86_64";
} else if (Platform.isLinux) {
return "linux-x86_64";
} else if (Platform.isWindows) {
return "windows-x86_64";
}
throw UnsupportedError("Unsupported host platform for Android NDK");
}
(String goArch, String ccTriple) _androidArch(Architecture arch) {
switch (arch) {
case Architecture.arm64:
return ("arm64", "aarch64-linux-android");
case Architecture.arm:
return ("arm", "armv7a-linux-androideabi");
case Architecture.x64:
return ("amd64", "x86_64-linux-android");
case Architecture.ia32:
return ("386", "i686-linux-android");
default:
throw UnsupportedError("Unsupported Android architecture: $arch");
}
}