2 files changed, 23 insertions, 19 deletions

diff --git a/subcmds/init.py b/subcmds/init.py
index fe3ebd2c..1d16c856 100644
--- a/subcmds/init.py
+++ b/subcmds/init.py
@@ -25,6 +25,7 @@ from error import ManifestParseError
 from project import SyncBuffer
 from git_config import GitConfig
 from git_command import git_require, MIN_GIT_VERSION_SOFT, MIN_GIT_VERSION_HARD
+import git_superproject
 import platform_utils
 from wrapper import Wrapper
 
@@ -134,6 +135,11 @@ to update the working directory files.
     g.add_option('--submodules',
                  dest='submodules', action='store_true',
                  help='sync any submodules associated with the manifest repo')
+    g.add_option('--use-superproject', action='store_true',
+                 help='use the manifest superproject to sync projects')
+    g.add_option('--no-use-superproject', action='store_false',
+                 dest='use_superproject',
+                 help='disable use of manifest superprojects')
     g.add_option('-g', '--groups',
                  dest='groups', default='default',
                  help='restrict manifest projects to ones with specified '
@@ -176,6 +182,14 @@ to update the working directory files.
     return {'REPO_MANIFEST_URL': 'manifest_url',
             'REPO_MIRROR_LOCATION': 'reference'}
 
+  def _CloneSuperproject(self):
+    """Clone the superproject based on the superproject's url and branch."""
+    superproject = git_superproject.Superproject(self.manifest,
+                                                 self.repodir)
+    if not superproject.Sync():
+      print('error: git update of superproject failed', file=sys.stderr)
+      sys.exit(1)
+
   def _SyncManifest(self, opt):
     m = self.manifest.manifestProject
     is_new = not m.Exists
@@ -305,6 +319,9 @@ to update the working directory files.
     if opt.submodules:
       m.config.SetBoolean('repo.submodules', opt.submodules)
 
+    if opt.use_superproject is not None:
+      m.config.SetBoolean('repo.superproject', opt.use_superproject)
+
     if not m.Sync_NetworkHalf(is_new=is_new, quiet=opt.quiet, verbose=opt.verbose,
                               clone_bundle=opt.clone_bundle,
                               current_branch_only=opt.current_branch_only,
@@ -519,6 +536,9 @@ to update the working directory files.
     self._SyncManifest(opt)
     self._LinkManifest(opt.manifest_name)
 
+    if self.manifest.manifestProject.config.GetBoolean('repo.superproject'):
+      self._CloneSuperproject()
+
     if os.isatty(0) and os.isatty(1) and not self.manifest.IsMirror:
       if opt.config_name or self._ShouldConfigureUser(opt):
         self._ConfigureUser(opt)
diff --git a/subcmds/sync.py b/subcmds/sync.py
index 5020ea7a..eda95f96 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -294,28 +294,12 @@ later is required to fix a server side protocol bug.
     Returns:
       Returns path to the overriding manifest file.
     """
-    if not self.manifest.superproject:
-      print('error: superproject tag is not defined in manifest.xml',
-            file=sys.stderr)
-      sys.exit(1)
-    print('WARNING: --use-superproject is experimental and not '
-          'for general use', file=sys.stderr)
-
-    superproject_url = self.manifest.superproject['remote'].url
-    if not superproject_url:
-      print('error: superproject URL is not defined in manifest.xml',
-            file=sys.stderr)
-      sys.exit(1)
-
-    superproject = git_superproject.Superproject(self.manifest.repodir)
+    superproject = git_superproject.Superproject(self.manifest,
+                                                 self.repodir)
     all_projects = self.GetProjects(args,
                                     missing_ok=True,
                                     submodules_ok=opt.fetch_submodules)
-    branch = self._GetBranch()
-    manifest_path = superproject.UpdateProjectsRevisionId(self.manifest,
-                                                          all_projects,
-                                                          url=superproject_url,
-                                                          branch=branch)
+    manifest_path = superproject.UpdateProjectsRevisionId(all_projects)
     if not manifest_path:
       print('error: Update of revsionId from superproject has failed',
             file=sys.stderr)