Measure time spent running pub

pkg/analysis_server/lib/src/context_manager.dart

Index: pkg/analysis_server/lib/src/context_manager.dart
diff --git a/pkg/analysis_server/lib/src/context_manager.dart b/pkg/analysis_server/lib/src/context_manager.dart
index e0ad10d1805d6da2de34304a7e903f05edcfc1a4..26b1136053cec44a328263fa99361455e2fc5322 100644
--- a/pkg/analysis_server/lib/src/context_manager.dart
+++ b/pkg/analysis_server/lib/src/context_manager.dart
@@ -7,6 +7,7 @@ library context.directory.manager;
 import 'dart:async';
 import 'dart:collection';
 
+import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/source/package_map_provider.dart';
 import 'package:analyzer/source/package_map_resolver.dart';
@@ -326,8 +327,10 @@ abstract class ContextManager {
       return new PackageUriResolver([new JavaFile(info.packageRoot)]);
     } else {
       beginComputePackageMap();
-      PackageMapInfo packageMapInfo =
-          _packageMapProvider.computePackageMap(folder);
+      PackageMapInfo packageMapInfo;
+      ServerPerformanceStatistics.pub.makeCurrentWhile(() {
+        packageMapInfo = _packageMapProvider.computePackageMap(folder);
+      });
       endComputePackageMap();
       info.packageMapDependencies = packageMapInfo.dependencies;
       if (packageMapInfo.packageMap == null) {
@@ -361,20 +364,6 @@ abstract class ContextManager {
   }
 
   /**
-   * Create a new context associated with the given [folder]. The [pubspecFile]
-   * is the `pubspec.yaml` file contained in the folder. Add any sources that
-   * are not included in one of the [children] to the context.
-   */
-  _ContextInfo _createContextWithSources(Folder folder, File pubspecFile,
-      List<_ContextInfo> children) {
-    _ContextInfo info = _createContext(folder, pubspecFile, children);
-    ChangeSet changeSet = new ChangeSet();
-    _addSourceFiles(changeSet, folder, info);
-    applyChangesToContext(folder, changeSet);
-    return info;
-  }
-
-  /**
    * Creates a new context associated with [folder].
    *
    * If there are subfolders with 'pubspec.yaml' files, separate contexts
@@ -414,6 +403,20 @@ abstract class ContextManager {
   }
 
   /**
+   * Create a new context associated with the given [folder]. The [pubspecFile]
+   * is the `pubspec.yaml` file contained in the folder. Add any sources that
+   * are not included in one of the [children] to the context.
+   */
+  _ContextInfo _createContextWithSources(Folder folder, File pubspecFile,
+      List<_ContextInfo> children) {
+    _ContextInfo info = _createContext(folder, pubspecFile, children);
+    ChangeSet changeSet = new ChangeSet();
+    _addSourceFiles(changeSet, folder, info);
+    applyChangesToContext(folder, changeSet);
+    return info;
+  }
+
+  /**
    * Clean up and destroy the context associated with the given folder.
    */
   void _destroyContext(Folder folder) {