Rename "install" -> "get" and "update" -> "upgrade".

sdk/lib/_internal/pub/lib/src/source/path.dart

 // Copyright (c) 2013, 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.source.path;
 
 import 'dart:async';
 
 import 'package:path/path.dart' as path;
 
 import '../io.dart';
 import '../package.dart';
 import '../pubspec.dart';
 import '../source.dart';
 import '../utils.dart';
 
-/// A package [Source] that installs packages from a given local file path.
+/// A package [Source] that gets packages from a given local file path.
 class PathSource extends Source {
   final name = 'path';
   final shouldCache = false;
 
   Future<Pubspec> describeUncached(PackageId id) {
     return new Future.sync(() {
       _validatePath(id.name, id.description);
       return new Pubspec.load(id.description["path"], systemCache.sources,
           expectedName: id.name);
     });
   }
 
   bool descriptionsEqual(description1, description2) {
     // Compare real paths after normalizing and resolving symlinks.
     var path1 = canonicalize(description1["path"]);
     var path2 = canonicalize(description2["path"]);
     return path1 == path2;
   }
 
-  Future<bool> install(PackageId id, String destination) {
+  Future<bool> get(PackageId id, String destination) {
     return new Future.sync(() {
       try {
         _validatePath(id.name, id.description);
       } on FormatException catch(err) {
         return false;
       }
 
       createPackageSymlink(id.name, id.description["path"], destination,
           relative: id.description["relative"]);
       return true;
@@ skipping 64 matching lines @@
     if (dirExists(dir)) return;
 
     if (fileExists(dir)) {
       fail("Path dependency for package '$name' must refer to a "
            "directory, not a file. Was '$dir'.");
     }
 
     fail("Could not find package '$name' at '$dir'.");
   }
 }