Reverting 7623

utils/pub/git_source.dart

-// Copyright (c) 2012, 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.
-
-/**
- * A package source that installs packages from Git repos.
- */
-class GitSource extends Source {
-  final String name = "git";
-
-  // TODO(nweiz): this should be cached since it uses the network, but until we
-  // support versions there's no good way to distinguish between different
-  // checkouts of the same repository.
-  final bool shouldCache = false;
-
-  GitSource();
-
-  /**
-   * Clones a Git repo to the local filesystem.
-   */
-  Future<bool> install(PackageId id, String destPath) {
-    return runProcess("git", ["clone", "--progress", id.fullName, destPath],
-        pipeStdout: true, pipeStderr: true).
-      transform((result) => result.success);
-  }
-
-  /**
-   * The package name of a Git repo is the name of the directory into which
-   * it'll be cloned.
-   */
-  String packageName(PackageId id) =>
-      basename(id.fullName).replaceFirst(const RegExp("\.git\$"), "");
-}