Merge pull request #5 from dart-lang/devoncarew_query
add some query methods to the API
diff --git a/lib/pub_cache.dart b/lib/pub_cache.dart
index c9e622a..ccbadbc 100644
--- a/lib/pub_cache.dart
+++ b/lib/pub_cache.dart
@@ -10,19 +10,16 @@
import 'package:pub_semver/pub_semver.dart';
import 'package:yaml/yaml.dart' as yaml;
-// TODO: do things like get all the versions for a package?
-
// TODO: get the latest version for a package?
// TODO: get the latest non-dev version for a package?
-// TODO: get all the packages (id's only) in the pubcache
+// TODO: Scan for git packages.
/**
- * TODO:
+ * A programattic API for reflecting on Pub's cache directory.
*/
class PubCache {
-
static Directory getSystemCacheLocation() {
if (Platform.environment.containsKey('PUB_CACHE')) {
return new Directory(Platform.environment['PUB_CACHE']);
@@ -52,10 +49,30 @@
return dir.existsSync() ? dir.listSync() : [];
}
+ /**
+ * Return applications that have been installed via `pub global activate`.
+ */
List<Application> getGlobalApplications() => _applications;
+ /**
+ * Get all the packages and their versions that have been installed into the
+ * cache.
+ */
List<PackageRef> getPackageRefs() => _packageRefs;
+ /**
+ * Return the list of package names (not versions) that are available in the
+ * cache.
+ */
+ List<String> getCachedPackages() =>
+ new Set.from(getPackageRefs().map((p) => p.name)).toList();
+
+ /**
+ * Return all available cached versions for a given package.
+ */
+ List<PackageRef> getAllPackageVersions(String packageName) =>
+ getPackageRefs().where((p) => p.name == packageName).toList();
+
void _parse() {
// Read the activated applications.
_applications = [];
@@ -66,8 +83,6 @@
(dir) => new Application._(this, dir)).toList();
}
- // TODO: Scan for git packages.
-
// Scan hosted packages - just pub.dartlang.org for now.
_packageRefs = [];
@@ -90,15 +105,21 @@
final Directory _dir;
List<PackageRef> _packageRefs;
- Version _version;
Application._(this._cache, this._dir);
String get name => path.basename(_dir.path);
Version get version {
- if (_packageRefs == null) _parsePubspecLock();
- return _version;
+ PackageRef ref = getDefiningPackageRef();
+ return ref == null ? null : ref.version;
+ }
+
+ PackageRef getDefiningPackageRef() {
+ for (PackageRef ref in getPackageRefs()) {
+ if (ref.name == name) return ref;
+ }
+ return null;
}
List<PackageRef> getPackageRefs() {
@@ -116,15 +137,6 @@
Map m = packages[key];
return new _AppPackageRef(_cache, m['source'], key, m['version']);
}).toList();
-
- String name = this.name;
-
- for (PackageRef ref in _packageRefs) {
- if (ref.name == name) {
- _version = ref.version;
- break;
- }
- }
}
}
diff --git a/test/pub_cache_test.dart b/test/pub_cache_test.dart
index 147ca06..a15ba4d 100644
--- a/test/pub_cache_test.dart
+++ b/test/pub_cache_test.dart
@@ -41,6 +41,16 @@
PubCache cache = new PubCache();
expect(cache.getPackageRefs(), isNotEmpty);
});
+
+ test('getCachedPackages', () {
+ PubCache cache = new PubCache();
+ expect(cache.getCachedPackages(), isNotEmpty);
+ });
+
+ test('getAllPackageVersions', () {
+ PubCache cache = new PubCache();
+ expect(cache.getAllPackageVersions('path'), isNotEmpty);
+ });
});
group('Application', () {
@@ -60,6 +70,10 @@
expect(app.version, isNotNull);
});
+ test('getDefiningPackageRef', () {
+ expect(app.getDefiningPackageRef().name, app.name);
+ });
+
test('getPackageRefs', () {
expect(app.getPackageRefs(), isNotEmpty);
});
