Make gclient fetch git repos recursively. This is needed when adding a git repo through DEPS. If that repo has submodules, we need to fetch them or else the repo won't be complete.

Review URL: https://chromiumcodereview.appspot.com/12620024

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@189026 0039d316-1c4b-4281-b951-d872f2087c98

gclient_scm.py

@@ -202,6 +202,7 @@ class GitWrapper(SCMWrapper):
     cmd = ['git', 'submodule', '--quiet', 'foreach', ' '.join(submod_cmd)]
     cmd2 = ['git', 'config', 'diff.ignoreSubmodules', 'all']
     cmd3 = ['git', 'config', 'branch.autosetupmerge']
+    cmd4 = ['git', 'config', 'fetch.recurseSubmodules', 'true']
     kwargs = {'cwd': self.checkout_path,
               'print_stdout': False,
               'filter_fn': lambda x: None}
@@ -217,6 +218,8 @@ class GitWrapper(SCMWrapper):
     except subprocess2.CalledProcessError:
       gclient_utils.CheckCallAndFilter(cmd3 + ['always'], **kwargs)
 
+    gclient_utils.CheckCallAndFilter(cmd4, **kwargs)
+
   def update(self, options, args, file_list):
     """Runs git to update or transparently checkout the working copy.
 
@@ -656,6 +659,7 @@ class GitWrapper(SCMWrapper):
     if options.verbose:
       clone_cmd.append('--verbose')
     clone_cmd.extend([url, self.checkout_path])
+    clone_cmd.append('--recursive')
 
     # If the parent directory does not exist, Git clone on Windows will not
     # create it, so we need to do it manually.