Initial Contribution
diff --git a/subcmds/sync.py b/subcmds/sync.py
new file mode 100644
index 0000000..3eb44ed
--- /dev/null
+++ b/subcmds/sync.py
@@ -0,0 +1,150 @@
+#
+# Copyright (C) 2008 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import re
+import subprocess
+import sys
+
+from git_command import GIT
+from command import Command
+from error import RepoChangedException, GitError
+from project import R_HEADS
+
+class Sync(Command):
+ common = True
+ helpSummary = "Update working tree to the latest revision"
+ helpUsage = """
+%prog [<project>...]
+"""
+ helpDescription = """
+The '%prog' command synchronizes local project directories
+with the remote repositories specified in the manifest. If a local
+project does not yet exist, it will clone a new local directory from
+the remote repository and set up tracking branches as specified in
+the manifest. If the local project already exists, '%prog'
+will update the remote branches and rebase any new local changes
+on top of the new remote changes.
+
+'%prog' will synchronize all projects listed at the command
+line. Projects can be specified either by name, or by a relative
+or absolute path to the project's local directory. If no projects
+are specified, '%prog' will synchronize all projects listed in
+the manifest.
+"""
+
+ def _Options(self, p):
+ p.add_option('--no-repo-verify',
+ dest='no_repo_verify', action='store_true',
+ help='do not verify repo source code')
+
+ def _Fetch(self, *projects):
+ fetched = set()
+ for project in projects:
+ if project.Sync_NetworkHalf():
+ fetched.add(project.gitdir)
+ else:
+ print >>sys.stderr, 'error: Cannot fetch %s' % project.name
+ sys.exit(1)
+ return fetched
+
+ def Execute(self, opt, args):
+ rp = self.manifest.repoProject
+ rp.PreSync()
+
+ mp = self.manifest.manifestProject
+ mp.PreSync()
+
+ all = self.GetProjects(args, missing_ok=True)
+ fetched = self._Fetch(rp, mp, *all)
+
+ if rp.HasChanges:
+ print >>sys.stderr, 'info: A new version of repo is available'
+ print >>sys.stderr, ''
+ if opt.no_repo_verify or _VerifyTag(rp):
+ if not rp.Sync_LocalHalf():
+ sys.exit(1)
+ print >>sys.stderr, 'info: Restarting repo with latest version'
+ raise RepoChangedException()
+ else:
+ print >>sys.stderr, 'warning: Skipped upgrade to unverified version'
+
+ if mp.HasChanges:
+ if not mp.Sync_LocalHalf():
+ sys.exit(1)
+
+ self.manifest._Unload()
+ all = self.GetProjects(args, missing_ok=True)
+ missing = []
+ for project in all:
+ if project.gitdir not in fetched:
+ missing.append(project)
+ self._Fetch(*missing)
+
+ for project in all:
+ if not project.Sync_LocalHalf():
+ sys.exit(1)
+
+
+def _VerifyTag(project):
+ gpg_dir = os.path.expanduser('~/.repoconfig/gnupg')
+ if not os.path.exists(gpg_dir):
+ print >>sys.stderr,\
+"""warning: GnuPG was not available during last "repo init"
+warning: Cannot automatically authenticate repo."""
+ return True
+
+ remote = project.GetRemote(project.remote.name)
+ ref = remote.ToLocal(project.revision)
+
+ try:
+ cur = project.bare_git.describe(ref)
+ except GitError:
+ cur = None
+
+ if not cur \
+ or re.compile(r'^.*-[0-9]{1,}-g[0-9a-f]{1,}$').match(cur):
+ rev = project.revision
+ if rev.startswith(R_HEADS):
+ rev = rev[len(R_HEADS):]
+
+ print >>sys.stderr
+ print >>sys.stderr,\
+ "warning: project '%s' branch '%s' is not signed" \
+ % (project.name, rev)
+ return False
+
+ env = dict(os.environ)
+ env['GIT_DIR'] = project.gitdir
+ env['GNUPGHOME'] = gpg_dir
+
+ cmd = [GIT, 'tag', '-v', cur]
+ proc = subprocess.Popen(cmd,
+ stdout = subprocess.PIPE,
+ stderr = subprocess.PIPE,
+ env = env)
+ out = proc.stdout.read()
+ proc.stdout.close()
+
+ err = proc.stderr.read()
+ proc.stderr.close()
+
+ if proc.wait() != 0:
+ print >>sys.stderr
+ print >>sys.stderr, out
+ print >>sys.stderr, err
+ print >>sys.stderr
+ return False
+ return True