add daemon command to enumerate supported platforms (#33472)
diff --git a/packages/flutter_tools/doc/daemon.md b/packages/flutter_tools/doc/daemon.md
index aa94ba4..0df9376 100644
--- a/packages/flutter_tools/doc/daemon.md
+++ b/packages/flutter_tools/doc/daemon.md
@@ -60,6 +60,17 @@
The `shutdown()` command will terminate the flutter daemon. It is not necessary to call this before shutting down the daemon; it is perfectly acceptable to just kill the daemon process.
+### daemon.getSupportedPlatforms
+
+The `getSupportedPlatforms()` command will enumerate all platforms supported by the project located at the provided `projectRoot`. It returns a Map with the key 'platforms' containing a List of strings which describe the set of all possibly supported platforms. Possible values include:
+ - android
+ - ios
+ - linux #experimental
+ - macos #experimental
+ - windows #experimental
+ - fuchsia #experimental
+ - web #experimental
+
#### Events
#### daemon.connected
diff --git a/packages/flutter_tools/lib/src/commands/daemon.dart b/packages/flutter_tools/lib/src/commands/daemon.dart
index 0071cd5..9283e4f 100644
--- a/packages/flutter_tools/lib/src/commands/daemon.dart
+++ b/packages/flutter_tools/lib/src/commands/daemon.dart
@@ -248,6 +248,7 @@
DaemonDomain(Daemon daemon) : super(daemon, 'daemon') {
registerHandler('version', version);
registerHandler('shutdown', shutdown);
+ registerHandler('getSupportedPlatforms', getSupportedPlatforms);
sendEvent(
'daemon.connected',
@@ -300,6 +301,59 @@
void dispose() {
_subscription?.cancel();
}
+
+ /// Enumerates the platforms supported by the provided project.
+ ///
+ /// This does not filter based on the current workflow restrictions, such
+ /// as whether command line tools are installed or whether the host platform
+ /// is correct.
+ Future<Map<String, Object>> getSupportedPlatforms(Map<String, dynamic> args) async {
+ final String projectRoot = _getStringArg(args, 'projectRoot', required: true);
+ final List<String> result = <String>[];
+ try {
+ // TODO(jonahwilliams): replace this with a project metadata check once
+ // that has been implemented.
+ final FlutterProject flutterProject = FlutterProject.fromDirectory(fs.directory(projectRoot));
+ if (flutterProject.linux.existsSync()) {
+ result.add('linux');
+ }
+ if (flutterProject.macos.existsSync()) {
+ result.add('macos');
+ }
+ if (flutterProject.windows.existsSync()) {
+ result.add('windows');
+ }
+ if (flutterProject.ios.existsSync()) {
+ result.add('ios');
+ }
+ if (flutterProject.android.existsSync()) {
+ result.add('android');
+ }
+ if (flutterProject.web.existsSync()) {
+ result.add('web');
+ }
+ if (flutterProject.fuchsia.existsSync()) {
+ result.add('fuchsia');
+ }
+ return <String, Object>{
+ 'platforms': result,
+ };
+ } catch (err, stackTrace) {
+ sendEvent('log', <String, dynamic>{
+ 'log': 'Failed to parse project metadata',
+ 'stackTrace': stackTrace.toString(),
+ 'error': true,
+ });
+ // On any sort of failure, fall back to Android and iOS for backwards
+ // comparability.
+ return <String, Object>{
+ 'platforms': <String>[
+ 'android',
+ 'ios',
+ ],
+ };
+ }
+ }
}
typedef _RunOrAttach = Future<void> Function({
