Konstantin Shcheglov
76387a9c5b
Change-Id: I90910bc3c966f648ade107d10d4c7f593c67c7a4 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242162 Reviewed-by: Samuel Rawlins <srawlins@google.com> Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
38 lines
1.5 KiB
Dart
38 lines
1.5 KiB
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
import 'dart:io';
|
|
|
|
import 'package:path/path.dart' as pathos;
|
|
|
|
/// Returns a path to the directory containing source code for packages such as
|
|
/// kernel, front_end, and analyzer.
|
|
String get packageRoot {
|
|
// If the package root directory is specified on the command line using
|
|
// -DpkgRoot=..., use it.
|
|
const pkgRootVar =
|
|
bool.hasEnvironment('pkgRoot') ? String.fromEnvironment('pkgRoot') : null;
|
|
if (pkgRootVar != null) {
|
|
var path = pathos.join(Directory.current.path, pkgRootVar);
|
|
if (!path.endsWith(pathos.separator)) path += pathos.separator;
|
|
return path;
|
|
}
|
|
// Otherwise try to guess based on the script path.
|
|
var scriptPath = pathos.fromUri(Platform.script);
|
|
var parts = pathos.split(scriptPath);
|
|
var pkgIndex = parts.indexOf('pkg');
|
|
if (pkgIndex != -1) {
|
|
return pathos.joinAll(parts.sublist(0, pkgIndex + 1)) + pathos.separator;
|
|
}
|
|
// Try google3 environment. We expect that all packages that will be
|
|
// accessed via this root are configured in the BUILD file, and located
|
|
// inside this single root.
|
|
final runFiles = Platform.environment['RUNFILES'];
|
|
final analyzerPackagesRoot = Platform.environment['ANALYZER_PACKAGES_ROOT'];
|
|
if (runFiles != null && analyzerPackagesRoot != null) {
|
|
return pathos.join(runFiles, analyzerPackagesRoot);
|
|
}
|
|
throw StateError('Unable to find sdk/pkg/ in $scriptPath');
|
|
}
|