Pub global deactivate command.

sdk/lib/_internal/pub/lib/src/command/global_deactivate.dart

Index: sdk/lib/_internal/pub/lib/src/command/global_deactivate.dart
diff --git a/sdk/lib/_internal/pub/lib/src/command/global_deactivate.dart b/sdk/lib/_internal/pub/lib/src/command/global_deactivate.dart
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+// Copyright (c) 2014, 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.
+
+library pub.command.global_deactivate;
+
+import 'dart:async';
+
+import '../command.dart';
+import '../utils.dart';
+import '../version.dart';
+
+/// Handles the `global deactivate` pub command.
+class GlobalDeactivateCommand extends PubCommand {
+  String get description => "Remove a previously activated package.";
+  String get usage => "pub global deactivate <package>";
+  bool get requiresEntrypoint => false;
+  bool get takesArguments => true;
+
+  Future onRun() {
+    // Make sure there is a package.
+    if (commandOptions.rest.isEmpty) {
+      usageError("No package to deactivate given.");
+    }
+
+    // Don't allow extra arguments.
+    if (commandOptions.rest.length > 1) {
+      var unexpected = commandOptions.rest.skip(1).map((arg) => '"$arg"');
+      var arguments = pluralize("argument", unexpected.length);
+      usageError("Unexpected $arguments ${toSentence(unexpected)}.");
+    }
+
+    globals.deactivate(commandOptions.rest.first);
+  }
+}