GitcInit: fix gitc-init failure

Aligns argument usage of refactored GitcManifest (8c1e9cbef
"manifest_xml: refactor manifest parsing from client management") to fix
the `repo gitc-init` error: `fatal: manifest_file must be abspath`.

Change-Id: I1728032cce3f39ed1077bbb7ef714410c2c49e1a
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/350374
Tested-by: Woody Lin <woodylin@google.com>
Reviewed-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Xin Li <delphij@google.com>

command.py

@@ -277,6 +277,18 @@ class Command(object):
   def GetProjects(self, args, manifest=None, groups='', missing_ok=False,
                   submodules_ok=False, all_manifests=False):
     """A list of projects that match the arguments.
+
+    Args:
+      args: a list of (case-insensitive) strings, projects to search for.
+      manifest: an XmlManifest, the manifest to use, or None for default.
+      groups: a string, the manifest groups in use.
+      missing_ok: a boolean, whether to allow missing projects.
+      submodules_ok: a boolean, whether to allow submodules.
+      all_manifests: a boolean, if True then all manifests and submanifests are
+                     used.  If False, then only the local (sub)manifest is used.
+
+    Returns:
+      A list of matching Project instances.
     """
     if all_manifests:
       if not manifest:

docs/manifest-format.md

@@ -105,6 +105,8 @@ following DTD:
   <!ATTLIST extend-project groups CDATA #IMPLIED>
   <!ATTLIST extend-project revision CDATA #IMPLIED>
   <!ATTLIST extend-project remote CDATA #IMPLIED>
+  <!ATTLIST extend-project dest-branch CDATA #IMPLIED>
+  <!ATTLIST extend-project upstream CDATA #IMPLIED>
 
   <!ELEMENT remove-project EMPTY>
   <!ATTLIST remove-project name  CDATA #REQUIRED>
@@ -423,6 +425,12 @@ project.  Same syntax as the corresponding element of `project`.
 Attribute `remote`: If specified, overrides the remote of the original
 project.  Same syntax as the corresponding element of `project`.
 
+Attribute `dest-branch`: If specified, overrides the dest-branch of the original
+project.  Same syntax as the corresponding element of `project`.
+
+Attribute `upstream`: If specified, overrides the upstream of the original
+project.  Same syntax as the corresponding element of `project`.
+
 ### Element annotation
 
 Zero or more annotation elements may be specified as children of a

git_command.py

@@ -158,6 +158,8 @@ def git_require(min_version, fail=False, msg=''):
 
 
 class GitCommand(object):
+  """Wrapper around a single git invocation."""
+
   def __init__(self,
                project,
                cmdv,
@@ -228,12 +230,11 @@ class GitCommand(object):
     stderr = (subprocess.STDOUT if merge_output else
               (subprocess.PIPE if capture_stderr else None))
 
+    dbg = ''
     if IsTrace():
       global LAST_CWD
       global LAST_GITDIR
 
-      dbg = ''
-
       if cwd and LAST_CWD != cwd:
         if LAST_GITDIR or LAST_CWD:
           dbg += '\n'
@@ -261,36 +262,31 @@ class GitCommand(object):
         dbg += ' 2>|'
       elif stderr == subprocess.STDOUT:
         dbg += ' 2>&1'
-      Trace('%s', dbg)
 
-    try:
+    with Trace('git command %s %s with debug: %s', LAST_GITDIR, command, dbg):
-      p = subprocess.Popen(command,
+      try:
-                           cwd=cwd,
+        p = subprocess.Popen(command,
-                           env=env,
+                            cwd=cwd,
-                           encoding='utf-8',
+                            env=env,
-                           errors='backslashreplace',
+                            encoding='utf-8',
-                           stdin=stdin,
+                            errors='backslashreplace',
-                           stdout=stdout,
+                            stdin=stdin,
-                           stderr=stderr)
+                            stdout=stdout,
-    except Exception as e:
+                            stderr=stderr)
-      raise GitError('%s: %s' % (command[1], e))
+      except Exception as e:
+        raise GitError('%s: %s' % (command[1], e))
 
-    if ssh_proxy:
-      ssh_proxy.add_client(p)
-
-    self.process = p
-    if input:
-      if isinstance(input, str):
-        input = input.encode('utf-8')
-      p.stdin.write(input)
-      p.stdin.close()
-
-    try:
-      self.stdout, self.stderr = p.communicate()
-    finally:
       if ssh_proxy:
-        ssh_proxy.remove_client(p)
+        ssh_proxy.add_client(p)
-    self.rc = p.wait()
+
+      self.process = p
+
+      try:
+        self.stdout, self.stderr = p.communicate(input=input)
+      finally:
+        if ssh_proxy:
+          ssh_proxy.remove_client(p)
+      self.rc = p.wait()
 
   @staticmethod
   def _GetBasicEnv():

git_config.py

@@ -219,8 +219,8 @@ class GitConfig(object):
     """Set the value(s) for a key.
        Only this configuration file is modified.
 
-       The supplied value should be either a string,
+       The supplied value should be either a string, or a list of strings (to
-       or a list of strings (to store multiple values).
+       store multiple values), or None (to delete the key).
     """
     key = _key(name)
 
@@ -349,9 +349,9 @@ class GitConfig(object):
     except OSError:
       return None
     try:
-      Trace(': parsing %s', self.file)
+      with Trace(': parsing %s', self.file):
-      with open(self._json) as fd:
+        with open(self._json) as fd:
-        return json.load(fd)
+          return json.load(fd)
     except (IOError, ValueError):
       platform_utils.remove(self._json, missing_ok=True)
       return None

git_refs.py

@@ -67,38 +67,37 @@ class GitRefs(object):
       self._LoadAll()
 
   def _NeedUpdate(self):
-    Trace(': scan refs %s', self._gitdir)
+    with Trace(': scan refs %s', self._gitdir):
-
+      for name, mtime in self._mtime.items():
-    for name, mtime in self._mtime.items():
+        try:
-      try:
+          if mtime != os.path.getmtime(os.path.join(self._gitdir, name)):
-        if mtime != os.path.getmtime(os.path.join(self._gitdir, name)):
+            return True
+        except OSError:
           return True
-      except OSError:
+      return False
-        return True
-    return False
 
   def _LoadAll(self):
-    Trace(': load refs %s', self._gitdir)
+    with Trace(': load refs %s', self._gitdir):
 
-    self._phyref = {}
+      self._phyref = {}
-    self._symref = {}
+      self._symref = {}
-    self._mtime = {}
+      self._mtime = {}
 
-    self._ReadPackedRefs()
+      self._ReadPackedRefs()
-    self._ReadLoose('refs/')
+      self._ReadLoose('refs/')
-    self._ReadLoose1(os.path.join(self._gitdir, HEAD), HEAD)
+      self._ReadLoose1(os.path.join(self._gitdir, HEAD), HEAD)
 
-    scan = self._symref
+      scan = self._symref
-    attempts = 0
+      attempts = 0
-    while scan and attempts < 5:
+      while scan and attempts < 5:
-      scan_next = {}
+        scan_next = {}
-      for name, dest in scan.items():
+        for name, dest in scan.items():
-        if dest in self._phyref:
+          if dest in self._phyref:
-          self._phyref[name] = self._phyref[dest]
+            self._phyref[name] = self._phyref[dest]
-        else:
+          else:
-          scan_next[name] = dest
+            scan_next[name] = dest
-      scan = scan_next
+        scan = scan_next
-      attempts += 1
+        attempts += 1
 
   def _ReadPackedRefs(self):
     path = os.path.join(self._gitdir, 'packed-refs')

git_superproject.py

@@ -18,7 +18,7 @@ For more information on superproject, check out:
 https://en.wikibooks.org/wiki/Git/Submodules_and_Superprojects
 
 Examples:
-  superproject = Superproject()
+  superproject = Superproject(manifest, name, remote, revision)
   UpdateProjectsResult = superproject.UpdateProjectsRevisionId(projects)
 """
 
@@ -99,8 +99,8 @@ class Superproject(object):
     self._work_git_name = git_name + _SUPERPROJECT_GIT_NAME
     self._work_git = os.path.join(self._superproject_path, self._work_git_name)
 
-    # The following are command arguemnts, rather then superproject attributes,
+    # The following are command arguemnts, rather than superproject attributes,
-    # and where included here originally.  They should eventually become
+    # and were included here originally.  They should eventually become
     # arguments that are passed down from the public methods, instead of being
     # treated as attributes.
     self._git_event_log = None
@@ -295,7 +295,8 @@ class Superproject(object):
     if not os.path.exists(self._superproject_path):
       self._LogWarning(f'missing superproject directory: {self._superproject_path}')
       return None
-    manifest_str = self._manifest.ToXml(groups=self._manifest.GetGroupsStr()).toxml()
+    manifest_str = self._manifest.ToXml(groups=self._manifest.GetGroupsStr(),
+                                        omit_local=True).toxml()
     manifest_path = self._manifest_path
     try:
       with open(manifest_path, 'w', encoding='utf-8') as fp:
@@ -329,7 +330,8 @@ class Superproject(object):
     """Update revisionId of every project in projects with the commit id.
 
     Args:
-      projects: List of projects whose revisionId needs to be updated.
+      projects: a list of projects whose revisionId needs to be updated.
+      git_event_log: an EventLog, for git tracing.
 
     Returns:
       UpdateProjectsResult
@@ -431,9 +433,15 @@ def UseSuperproject(use_superproject, manifest):
   Args:
     use_superproject: option value from optparse.
     manifest: manifest to use.
+
+  Returns:
+    Whether the superproject should be used.
   """
 
-  if use_superproject is not None:
+  if not manifest.superproject:
+    # This (sub) manifest does not have a superproject definition.
+    return False
+  elif use_superproject is not None:
     return use_superproject
   else:
     client_value = manifest.manifestProject.use_superproject

hooks/commit-msg

@@ -1,5 +1,5 @@
 #!/bin/sh
-# From Gerrit Code Review 3.1.3
+# From Gerrit Code Review 3.6.1 c67916dbdc07555c44e32a68f92ffc484b9b34f0
 #
 # Part of Gerrit Code Review (https://www.gerritcodereview.com/)
 #
@@ -17,6 +17,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+set -u
+
 # avoid [[ which is not POSIX sh.
 if test "$#" != 1 ; then
   echo "$0 requires an argument."
@@ -29,15 +31,25 @@ if test ! -f "$1" ; then
 fi
 
 # Do not create a change id if requested
-if test "false" = "`git config --bool --get gerrit.createChangeId`" ; then
+if test "false" = "$(git config --bool --get gerrit.createChangeId)" ; then
   exit 0
 fi
 
-# $RANDOM will be undefined if not using bash, so don't use set -u
+# Do not create a change id for squash commits.
-random=$( (whoami ; hostname ; date; cat $1 ; echo $RANDOM) | git hash-object --stdin)
+if head -n1 "$1" | grep -q '^squash! '; then
+  exit 0
+fi
+
+if git rev-parse --verify HEAD >/dev/null 2>&1; then
+  refhash="$(git rev-parse HEAD)"
+else
+  refhash="$(git hash-object -t tree /dev/null)"
+fi
+
+random=$({ git var GIT_COMMITTER_IDENT ; echo "$refhash" ; cat "$1"; } | git hash-object --stdin)
 dest="$1.tmp.${random}"
 
-trap 'rm -f "${dest}"' EXIT
+trap 'rm -f "$dest" "$dest-2"' EXIT
 
 if ! git stripspace --strip-comments < "$1" > "${dest}" ; then
    echo "cannot strip comments from $1"
@@ -49,11 +61,40 @@ if test ! -s "${dest}" ; then
   exit 1
 fi
 
+reviewurl="$(git config --get gerrit.reviewUrl)"
+if test -n "${reviewurl}" ; then
+  token="Link"
+  value="${reviewurl%/}/id/I$random"
+  pattern=".*/id/I[0-9a-f]\{40\}$"
+else
+  token="Change-Id"
+  value="I$random"
+  pattern=".*"
+fi
+
+if git interpret-trailers --parse < "$1" | grep -q "^$token: $pattern$" ; then
+  exit 0
+fi
+
+# There must be a Signed-off-by trailer for the code below to work. Insert a
+# sentinel at the end to make sure there is one.
 # Avoid the --in-place option which only appeared in Git 2.8
-# Avoid the --if-exists option which only appeared in Git 2.15
+if ! git interpret-trailers \
-if ! git -c trailer.ifexists=doNothing interpret-trailers \
+         --trailer "Signed-off-by: SENTINEL" < "$1" > "$dest-2" ; then
-      --trailer "Change-Id: I${random}" < "$1" > "${dest}" ; then
+  echo "cannot insert Signed-off-by sentinel line in $1"
-  echo "cannot insert change-id line in $1"
+  exit 1
+fi
+
+# Make sure the trailer appears before any Signed-off-by trailers by inserting
+# it as if it was a Signed-off-by trailer and then use sed to remove the
+# Signed-off-by prefix and the Signed-off-by sentinel line.
+# Avoid the --in-place option which only appeared in Git 2.8
+# Avoid the --where option which only appeared in Git 2.15
+if ! git -c trailer.where=before interpret-trailers \
+         --trailer "Signed-off-by: $token: $value" < "$dest-2" |
+     sed -re "s/^Signed-off-by: ($token: )/\1/" \
+         -e "/^Signed-off-by: SENTINEL/d" > "$dest" ; then
+  echo "cannot insert $token line in $1"
   exit 1
 fi
 

main.py

@@ -37,7 +37,7 @@ except ImportError:
 
 from color import SetDefaultColoring
 import event_log
-from repo_trace import SetTrace
+from repo_trace import SetTrace, Trace, SetTraceToStderr
 from git_command import user_agent
 from git_config import RepoConfig
 from git_trace2_event_log import EventLog
@@ -109,6 +109,9 @@ global_options.add_option('--color',
 global_options.add_option('--trace',
                           dest='trace', action='store_true',
                           help='trace git command execution (REPO_TRACE=1)')
+global_options.add_option('--trace_to_stderr',
+                          dest='trace_to_stderr', action='store_true',
+                          help='trace outputs go to stderr in addition to .repo/TRACE_FILE')
 global_options.add_option('--trace-python',
                           dest='trace_python', action='store_true',
                           help='trace python command execution')
@@ -198,9 +201,6 @@ class _Repo(object):
     """Execute the requested subcommand."""
     result = 0
 
-    if gopts.trace:
-      SetTrace()
-
     # Handle options that terminate quickly first.
     if gopts.help or gopts.help_all:
       self._PrintHelp(short=False, all_commands=gopts.help_all)
@@ -652,17 +652,26 @@ def _Main(argv):
   Version.wrapper_path = opt.wrapper_path
 
   repo = _Repo(opt.repodir)
+
   try:
     init_http()
     name, gopts, argv = repo._ParseArgs(argv)
-    run = lambda: repo._Run(name, gopts, argv) or 0
+
-    if gopts.trace_python:
+    if gopts.trace:
-      import trace
+      SetTrace()
-      tracer = trace.Trace(count=False, trace=True, timing=True,
+
-                           ignoredirs=set(sys.path[1:]))
+    if gopts.trace_to_stderr:
-      result = tracer.runfunc(run)
+      SetTraceToStderr()
-    else:
+
-      result = run()
+    with Trace('starting new command: %s', ', '.join([name] + argv), first_trace=True):
+      run = lambda: repo._Run(name, gopts, argv) or 0
+      if gopts.trace_python:
+        import trace
+        tracer = trace.Trace(count=False, trace=True, timing=True,
+                             ignoredirs=set(sys.path[1:]))
+        result = tracer.runfunc(run)
+      else:
+        result = run()
   except KeyboardInterrupt:
     print('aborted by user', file=sys.stderr)
     result = 1

man/repo-abandon.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo abandon" "Repo Manual"
+.TH REPO "1" "July 2022" "repo abandon" "Repo Manual"
 .SH NAME
 repo \- repo abandon - manual page for repo abandon
 .SH SYNOPSIS
@@ -32,5 +32,18 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help abandon` to view the detailed manual.

man/repo-branches.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo branches" "Repo Manual"
+.TH REPO "1" "July 2022" "repo branches" "Repo Manual"
 .SH NAME
 repo \- repo branches - manual page for repo branches
 .SH SYNOPSIS
@@ -55,5 +55,18 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help branches` to view the detailed manual.

man/repo-checkout.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo checkout" "Repo Manual"
+.TH REPO "1" "July 2022" "repo checkout" "Repo Manual"
 .SH NAME
 repo \- repo checkout - manual page for repo checkout
 .SH SYNOPSIS
@@ -24,6 +24,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help checkout` to view the detailed manual.
 .SH DETAILS

man/repo-cherry-pick.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo cherry-pick" "Repo Manual"
+.TH REPO "1" "July 2022" "repo cherry-pick" "Repo Manual"
 .SH NAME
 repo \- repo cherry-pick - manual page for repo cherry-pick
 .SH SYNOPSIS
@@ -20,6 +20,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help cherry\-pick` to view the detailed manual.
 .SH DETAILS

man/repo-diff.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo diff" "Repo Manual"
+.TH REPO "1" "July 2022" "repo diff" "Repo Manual"
 .SH NAME
 repo \- repo diff - manual page for repo diff
 .SH SYNOPSIS
@@ -31,5 +31,18 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help diff` to view the detailed manual.

man/repo-diffmanifests.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo diffmanifests" "Repo Manual"
+.TH REPO "1" "July 2022" "repo diffmanifests" "Repo Manual"
 .SH NAME
 repo \- repo diffmanifests - manual page for repo diffmanifests
 .SH SYNOPSIS
@@ -29,6 +29,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help diffmanifests` to view the detailed manual.
 .SH DETAILS

man/repo-download.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo download" "Repo Manual"
+.TH REPO "1" "July 2022" "repo download" "Repo Manual"
 .SH NAME
 repo \- repo download - manual page for repo download
 .SH SYNOPSIS
@@ -35,6 +35,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help download` to view the detailed manual.
 .SH DETAILS

man/repo-forall.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo forall" "Repo Manual"
+.TH REPO "1" "July 2022" "repo forall" "Repo Manual"
 .SH NAME
 repo \- repo forall - manual page for repo forall
 .SH SYNOPSIS
@@ -54,6 +54,19 @@ only show errors
 .TP
 \fB\-p\fR
 show project headers before output
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help forall` to view the detailed manual.
 .SH DETAILS
@@ -93,6 +106,11 @@ REPO_PROJECT is set to the unique name of the project.
 .PP
 REPO_PATH is the path relative the the root of the client.
 .PP
+REPO_OUTERPATH is the path of the sub manifest's root relative to the root of
+the client.
+.PP
+REPO_INNERPATH is the path relative to the root of the sub manifest.
+.PP
 REPO_REMOTE is the name of the remote system from the manifest.
 .PP
 REPO_LREV is the name of the revision from the manifest, translated to a local

man/repo-gitc-delete.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo gitc-delete" "Repo Manual"
+.TH REPO "1" "July 2022" "repo gitc-delete" "Repo Manual"
 .SH NAME
 repo \- repo gitc-delete - manual page for repo gitc-delete
 .SH SYNOPSIS
@@ -23,6 +23,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help gitc\-delete` to view the detailed manual.
 .SH DETAILS

man/repo-gitc-init.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "November 2021" "repo gitc-init" "Repo Manual"
+.TH REPO "1" "October 2022" "repo gitc-init" "Repo Manual"
 .SH NAME
 repo \- repo gitc-init - manual page for repo gitc-init
 .SH SYNOPSIS
@@ -45,10 +45,15 @@ sync any submodules associated with the manifest repo
 \fB\-\-standalone\-manifest\fR
 download the manifest as a static file rather then
 create a git checkout of the manifest repo
+.TP
+\fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR
+create a shallow clone of the manifest repo with given
+depth (0 for full clone); see git clone (default: 0)
 .SS Manifest (only) checkout options:
 .TP
 \fB\-\-current\-branch\fR
 fetch only current manifest branch from server
+(default)
 .TP
 \fB\-\-no\-current\-branch\fR
 fetch all manifest branches from server
@@ -109,6 +114,12 @@ not \fB\-\-partial\-clone\fR)
 \fB\-\-no\-clone\-bundle\fR
 disable use of \fI\,/clone.bundle\/\fP on HTTP/HTTPS (default if
 \fB\-\-partial\-clone\fR)
+.TP
+\fB\-\-git\-lfs\fR
+enable Git LFS support
+.TP
+\fB\-\-no\-git\-lfs\fR
+disable Git LFS support
 .SS repo Version options:
 .TP
 \fB\-\-repo\-url\fR=\fI\,URL\/\fR
@@ -130,6 +141,19 @@ Optional manifest file to use for this GITC client.
 .TP
 \fB\-c\fR GITC_CLIENT, \fB\-\-gitc\-client\fR=\fI\,GITC_CLIENT\/\fR
 Name of the gitc_client instance to create or modify.
+.SS Multi\-manifest:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help gitc\-init` to view the detailed manual.
 .SH DETAILS

man/repo-grep.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo grep" "Repo Manual"
+.TH REPO "1" "July 2022" "repo grep" "Repo Manual"
 .SH NAME
 repo \- repo grep - manual page for repo grep
 .SH SYNOPSIS
@@ -24,6 +24,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .SS Sources:
 .TP
 \fB\-\-cached\fR

man/repo-help.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo help" "Repo Manual"
+.TH REPO "1" "July 2022" "repo help" "Repo Manual"
 .SH NAME
 repo \- repo help - manual page for repo help
 .SH SYNOPSIS
@@ -26,6 +26,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help help` to view the detailed manual.
 .SH DETAILS

man/repo-info.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo info" "Repo Manual"
+.TH REPO "1" "July 2022" "repo info" "Repo Manual"
 .SH NAME
 repo \- repo info - manual page for repo info
 .SH SYNOPSIS
@@ -36,5 +36,18 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help info` to view the detailed manual.

man/repo-init.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "November 2021" "repo init" "Repo Manual"
+.TH REPO "1" "October 2022" "repo init" "Repo Manual"
 .SH NAME
 repo \- repo init - manual page for repo init
 .SH SYNOPSIS
@@ -45,10 +45,15 @@ sync any submodules associated with the manifest repo
 \fB\-\-standalone\-manifest\fR
 download the manifest as a static file rather then
 create a git checkout of the manifest repo
+.TP
+\fB\-\-manifest\-depth\fR=\fI\,DEPTH\/\fR
+create a shallow clone of the manifest repo with given
+depth (0 for full clone); see git clone (default: 0)
 .SS Manifest (only) checkout options:
 .TP
 \fB\-c\fR, \fB\-\-current\-branch\fR
 fetch only current manifest branch from server
+(default)
 .TP
 \fB\-\-no\-current\-branch\fR
 fetch all manifest branches from server
@@ -109,6 +114,12 @@ not \fB\-\-partial\-clone\fR)
 \fB\-\-no\-clone\-bundle\fR
 disable use of \fI\,/clone.bundle\/\fP on HTTP/HTTPS (default if
 \fB\-\-partial\-clone\fR)
+.TP
+\fB\-\-git\-lfs\fR
+enable Git LFS support
+.TP
+\fB\-\-no\-git\-lfs\fR
+disable Git LFS support
 .SS repo Version options:
 .TP
 \fB\-\-repo\-url\fR=\fI\,URL\/\fR
@@ -123,6 +134,19 @@ do not verify repo source code
 .TP
 \fB\-\-config\-name\fR
 Always prompt for name/e\-mail
+.SS Multi\-manifest:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help init` to view the detailed manual.
 .SH DETAILS

man/repo-list.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo list" "Repo Manual"
+.TH REPO "1" "July 2022" "repo list" "Repo Manual"
 .SH NAME
 repo \- repo list - manual page for repo list
 .SH SYNOPSIS
@@ -47,6 +47,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help list` to view the detailed manual.
 .SH DETAILS

man/repo-manifest.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "November 2021" "repo manifest" "Repo Manual"
+.TH REPO "1" "October 2022" "repo manifest" "Repo Manual"
 .SH NAME
 repo \- repo manifest - manual page for repo manifest
 .SH SYNOPSIS
@@ -40,7 +40,8 @@ format output for humans to read
 ignore local manifests
 .TP
 \fB\-o\fR \-|NAME.xml, \fB\-\-output\-file\fR=\fI\,\-\/\fR|NAME.xml
-file to save the manifest to
+file to save the manifest to. (Filename prefix for
+multi\-tree.)
 .SS Logging options:
 .TP
 \fB\-v\fR, \fB\-\-verbose\fR
@@ -48,6 +49,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help manifest` to view the detailed manual.
 .SH DETAILS
@@ -88,6 +102,7 @@ A manifest XML file (e.g. `default.xml`) roughly conforms to the following DTD:
 remote*,
 default?,
 manifest\-server?,
+submanifest*?,
 remove\-project*,
 project*,
 extend\-project*,
@@ -118,6 +133,16 @@ include*)>
 .IP
 <!ELEMENT manifest\-server EMPTY>
 <!ATTLIST manifest\-server url CDATA #REQUIRED>
+.IP
+<!ELEMENT submanifest EMPTY>
+<!ATTLIST submanifest name           ID #REQUIRED>
+<!ATTLIST submanifest remote         IDREF #IMPLIED>
+<!ATTLIST submanifest project        CDATA #IMPLIED>
+<!ATTLIST submanifest manifest\-name  CDATA #IMPLIED>
+<!ATTLIST submanifest revision       CDATA #IMPLIED>
+<!ATTLIST submanifest path           CDATA #IMPLIED>
+<!ATTLIST submanifest groups         CDATA #IMPLIED>
+<!ATTLIST submanifest default\-groups CDATA #IMPLIED>
 .TP
 <!ELEMENT project (annotation*,
 project*,
@@ -165,6 +190,8 @@ CDATA #IMPLIED>
 <!ATTLIST extend\-project groups CDATA #IMPLIED>
 <!ATTLIST extend\-project revision CDATA #IMPLIED>
 <!ATTLIST extend\-project remote CDATA #IMPLIED>
+<!ATTLIST extend\-project dest\-branch CDATA #IMPLIED>
+<!ATTLIST extend\-project upstream CDATA #IMPLIED>
 .IP
 <!ELEMENT remove\-project EMPTY>
 <!ATTLIST remove\-project name  CDATA #REQUIRED>
@@ -295,6 +322,65 @@ GetManifest(tag)
 Return a manifest in which each project is pegged to the revision at the
 specified tag. This is used by repo sync when the \fB\-\-smart\-tag\fR option is given.
 .PP
+Element submanifest
+.PP
+One or more submanifest elements may be specified. Each element describes a
+single manifest to be checked out as a child.
+.PP
+Attribute `name`: A unique name (within the current (sub)manifest) for this
+submanifest. It acts as a default for `revision` below. The same name can be
+used for submanifests with different parent (sub)manifests.
+.PP
+Attribute `remote`: Name of a previously defined remote element. If not supplied
+the remote given by the default element is used.
+.PP
+Attribute `project`: The manifest project name. The project's name is appended
+onto its remote's fetch URL to generate the actual URL to configure the Git
+remote with. The URL gets formed as:
+.IP
+${remote_fetch}/${project_name}.git
+.PP
+where ${remote_fetch} is the remote's fetch attribute and ${project_name} is the
+project's name attribute. The suffix ".git" is always appended as repo assumes
+the upstream is a forest of bare Git repositories. If the project has a parent
+element, its name will be prefixed by the parent's.
+.PP
+The project name must match the name Gerrit knows, if Gerrit is being used for
+code reviews.
+.PP
+`project` must not be empty, and may not be an absolute path or use "." or ".."
+path components. It is always interpreted relative to the remote's fetch
+settings, so if a different base path is needed, declare a different remote with
+the new settings needed.
+.PP
+If not supplied the remote and project for this manifest will be used: `remote`
+cannot be supplied.
+.PP
+Projects from a submanifest and its submanifests are added to the
+submanifest::path:<path_prefix> group.
+.PP
+Attribute `manifest\-name`: The manifest filename in the manifest project. If not
+supplied, `default.xml` is used.
+.PP
+Attribute `revision`: Name of a Git branch (e.g. "main" or "refs/heads/main"),
+tag (e.g. "refs/tags/stable"), or a commit hash. If not supplied, `name` is
+used.
+.PP
+Attribute `path`: An optional path relative to the top directory of the repo
+client where the submanifest repo client top directory should be placed. If not
+supplied, `revision` is used.
+.PP
+`path` may not be an absolute path or use "." or ".." path components.
+.PP
+Attribute `groups`: List of additional groups to which all projects in the
+included submanifest belong. This appends and recurses, meaning all projects in
+submanifests carry all parent submanifest groups. Same syntax as the
+corresponding element of `project`.
+.PP
+Attribute `default\-groups`: The list of manifest groups to sync if no
+`\-\-groups=` parameter was specified at init. When that list is empty, use this
+list instead of "default" as the list of groups to sync.
+.PP
 Element project
 .PP
 One or more project elements may be specified. Each element describes a single
@@ -401,6 +487,12 @@ project. Same syntax as the corresponding element of `project`.
 Attribute `remote`: If specified, overrides the remote of the original project.
 Same syntax as the corresponding element of `project`.
 .PP
+Attribute `dest\-branch`: If specified, overrides the dest\-branch of the original
+project. Same syntax as the corresponding element of `project`.
+.PP
+Attribute `upstream`: If specified, overrides the upstream of the original
+project. Same syntax as the corresponding element of `project`.
+.PP
 Element annotation
 .PP
 Zero or more annotation elements may be specified as children of a project or
@@ -513,10 +605,10 @@ restrictions are not enforced for [Local Manifests].
 .PP
 Attribute `groups`: List of additional groups to which all projects in the
 included manifest belong. This appends and recurses, meaning all projects in
-sub\-manifests carry all parent include groups. Same syntax as the corresponding
+included manifests carry all parent include groups. Same syntax as the
-element of `project`.
+corresponding element of `project`.
 .PP
-Local Manifests
+Local Manifests 
 .PP
 Additional remotes and projects may be added through local manifest files stored
 in `$TOP_DIR/.repo/local_manifests/*.xml`.

man/repo-overview.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo overview" "Repo Manual"
+.TH REPO "1" "July 2022" "repo overview" "Repo Manual"
 .SH NAME
 repo \- repo overview - manual page for repo overview
 .SH SYNOPSIS
@@ -26,6 +26,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help overview` to view the detailed manual.
 .SH DETAILS

man/repo-prune.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo prune" "Repo Manual"
+.TH REPO "1" "July 2022" "repo prune" "Repo Manual"
 .SH NAME
 repo \- repo prune - manual page for repo prune
 .SH SYNOPSIS
@@ -24,5 +24,18 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help prune` to view the detailed manual.

man/repo-rebase.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo rebase" "Repo Manual"
+.TH REPO "1" "July 2022" "repo rebase" "Repo Manual"
 .SH NAME
 repo \- repo rebase - manual page for repo rebase
 .SH SYNOPSIS
@@ -46,6 +46,19 @@ only show errors
 .TP
 \fB\-i\fR, \fB\-\-interactive\fR
 interactive rebase (single project only)
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help rebase` to view the detailed manual.
 .SH DETAILS

man/repo-selfupdate.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo selfupdate" "Repo Manual"
+.TH REPO "1" "July 2022" "repo selfupdate" "Repo Manual"
 .SH NAME
 repo \- repo selfupdate - manual page for repo selfupdate
 .SH SYNOPSIS
@@ -20,6 +20,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .SS repo Version options:
 .TP
 \fB\-\-no\-repo\-verify\fR

man/repo-smartsync.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "November 2021" "repo smartsync" "Repo Manual"
+.TH REPO "1" "August 2022" "repo smartsync" "Repo Manual"
 .SH NAME
 repo \- repo smartsync - manual page for repo smartsync
 .SH SYNOPSIS
@@ -20,11 +20,11 @@ number of CPU cores)
 .TP
 \fB\-\-jobs\-network\fR=\fI\,JOBS\/\fR
 number of network jobs to run in parallel (defaults to
-\fB\-\-jobs\fR)
+\fB\-\-jobs\fR or 1)
 .TP
 \fB\-\-jobs\-checkout\fR=\fI\,JOBS\/\fR
 number of local checkout jobs to run in parallel
-(defaults to \fB\-\-jobs\fR)
+(defaults to \fB\-\-jobs\fR or 8)
 .TP
 \fB\-f\fR, \fB\-\-force\-broken\fR
 obsolete option (to be deleted in the future)
@@ -112,6 +112,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .SS repo Version options:
 .TP
 \fB\-\-no\-repo\-verify\fR

man/repo-stage.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo stage" "Repo Manual"
+.TH REPO "1" "July 2022" "repo stage" "Repo Manual"
 .SH NAME
 repo \- repo stage - manual page for repo stage
 .SH SYNOPSIS
@@ -23,6 +23,19 @@ only show errors
 .TP
 \fB\-i\fR, \fB\-\-interactive\fR
 use interactive staging
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help stage` to view the detailed manual.
 .SH DETAILS

man/repo-start.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo start" "Repo Manual"
+.TH REPO "1" "July 2022" "repo start" "Repo Manual"
 .SH NAME
 repo \- repo start - manual page for repo start
 .SH SYNOPSIS
@@ -33,6 +33,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help start` to view the detailed manual.
 .SH DETAILS

man/repo-status.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo status" "Repo Manual"
+.TH REPO "1" "July 2022" "repo status" "Repo Manual"
 .SH NAME
 repo \- repo status - manual page for repo status
 .SH SYNOPSIS
@@ -28,6 +28,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help status` to view the detailed manual.
 .SH DETAILS

man/repo-sync.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "November 2021" "repo sync" "Repo Manual"
+.TH REPO "1" "August 2022" "repo sync" "Repo Manual"
 .SH NAME
 repo \- repo sync - manual page for repo sync
 .SH SYNOPSIS
@@ -20,11 +20,11 @@ number of CPU cores)
 .TP
 \fB\-\-jobs\-network\fR=\fI\,JOBS\/\fR
 number of network jobs to run in parallel (defaults to
-\fB\-\-jobs\fR)
+\fB\-\-jobs\fR or 1)
 .TP
 \fB\-\-jobs\-checkout\fR=\fI\,JOBS\/\fR
 number of local checkout jobs to run in parallel
-(defaults to \fB\-\-jobs\fR)
+(defaults to \fB\-\-jobs\fR or 8)
 .TP
 \fB\-f\fR, \fB\-\-force\-broken\fR
 obsolete option (to be deleted in the future)
@@ -119,6 +119,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .SS repo Version options:
 .TP
 \fB\-\-no\-repo\-verify\fR

man/repo-upload.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo upload" "Repo Manual"
+.TH REPO "1" "August 2022" "repo upload" "Repo Manual"
 .SH NAME
 repo \- repo upload - manual page for repo upload
 .SH SYNOPSIS
@@ -54,6 +54,9 @@ upload as a private change (deprecated; use \fB\-\-wip\fR)
 \fB\-w\fR, \fB\-\-wip\fR
 upload as a work\-in\-progress change
 .TP
+\fB\-r\fR, \fB\-\-ready\fR
+mark change as ready (clears work\-in\-progress setting)
+.TP
 \fB\-o\fR PUSH_OPTIONS, \fB\-\-push\-option\fR=\fI\,PUSH_OPTIONS\/\fR
 additional push options to transmit
 .TP
@@ -66,6 +69,12 @@ do everything except actually upload the CL
 \fB\-y\fR, \fB\-\-yes\fR
 answer yes to all safe prompts
 .TP
+\fB\-\-ignore\-untracked\-files\fR
+ignore untracked files in the working copy
+.TP
+\fB\-\-no\-ignore\-untracked\-files\fR
+always ask about untracked files in the working copy
+.TP
 \fB\-\-no\-cert\-checks\fR
 disable verifying ssl certs (unsafe)
 .SS Logging options:
@@ -75,6 +84,19 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .SS pre\-upload hooks:
 .TP
 \fB\-\-no\-verify\fR
@@ -105,6 +127,12 @@ respective list of users, and emails are sent to any new users. Users passed as
 \fB\-\-reviewers\fR must already be registered with the code review system, or the
 upload will fail.
 .PP
+While most normal Gerrit options have dedicated command line options, direct
+access to the Gerit options is available via \fB\-\-push\-options\fR. This is useful when
+Gerrit has newer functionality that repo upload doesn't yet support, or doesn't
+have plans to support. See the Push Options documentation for more details:
+https://gerrit\-review.googlesource.com/Documentation/user\-upload.html#push_options
+.PP
 Configuration
 .PP
 review.URL.autoupload:

man/repo-version.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo version" "Repo Manual"
+.TH REPO "1" "July 2022" "repo version" "Repo Manual"
 .SH NAME
 repo \- repo version - manual page for repo version
 .SH SYNOPSIS
@@ -20,5 +20,18 @@ show all output
 .TP
 \fB\-q\fR, \fB\-\-quiet\fR
 only show errors
+.SS Multi\-manifest options:
+.TP
+\fB\-\-outer\-manifest\fR
+operate starting at the outermost manifest
+.TP
+\fB\-\-no\-outer\-manifest\fR
+do not operate on outer manifests
+.TP
+\fB\-\-this\-manifest\-only\fR
+only operate on this (sub)manifest
+.TP
+\fB\-\-no\-this\-manifest\-only\fR, \fB\-\-all\-manifests\fR
+operate on this manifest and its submanifests
 .PP
 Run `repo help version` to view the detailed manual.

man/repo.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "November 2021" "repo" "Repo Manual"
+.TH REPO "1" "July 2022" "repo" "Repo Manual"
 .SH NAME
 repo \- repository management tool built on top of git
 .SH SYNOPSIS
@@ -43,6 +43,9 @@ filename of event log to append timeline to
 .TP
 \fB\-\-git\-trace2\-event\-log\fR=\fI\,GIT_TRACE2_EVENT_LOG\/\fR
 directory to write git trace2 event log to
+.TP
+\fB\-\-submanifest\-path\fR=\fI\,REL_PATH\/\fR
+submanifest path
 .SS "The complete list of recognized repo commands is:"
 .TP
 abandon

manifest_xml.py

@@ -123,7 +123,7 @@ class _Default(object):
   destBranchExpr = None
   upstreamExpr = None
   remote = None
-  sync_j = 1
+  sync_j = None
   sync_c = False
   sync_s = False
   sync_tags = True
@@ -284,7 +284,7 @@ class _XmlSubmanifest:
     if self.project:
       manifestUrl = remote.ToRemoteSpec(self.project).url
     else:
-      manifestUrl = mp.GetRemote(mp.remote.name).url
+      manifestUrl = mp.GetRemote().url
     manifestName = self.manifestName or 'default.xml'
     revision = self.revision or self.name
     path = self.path or revision.split('/')[-1]
@@ -348,7 +348,7 @@ class XmlManifest(object):
           be |repodir|/|MANIFEST_FILE_NAME|.
       local_manifests: Full path to the directory of local override manifests.
           This will usually be |repodir|/|LOCAL_MANIFESTS_DIR_NAME|.
-      outer_client: RepoClient of the outertree.
+      outer_client: RepoClient of the outer manifest.
       parent_groups: a string, the groups to apply to this projects.
       submanifest_path: The submanifest root relative to the repo root.
       default_groups: a string, the default manifest groups to use.
@@ -358,7 +358,10 @@ class XmlManifest(object):
 
     self.repodir = os.path.abspath(repodir)
     self._CheckLocalPath(submanifest_path)
-    self.topdir = os.path.join(os.path.dirname(self.repodir), submanifest_path)
+    self.topdir = os.path.dirname(self.repodir)
+    if submanifest_path:
+      # This avoids a trailing os.path.sep when submanifest_path is empty.
+      self.topdir = os.path.join(self.topdir, submanifest_path)
     if manifest_file != os.path.abspath(manifest_file):
       raise ManifestParseError('manifest_file must be abspath')
     self.manifestFile = manifest_file
@@ -502,7 +505,8 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
     """
     return [x for x in re.split(r'[,\s]+', field) if x]
 
-  def ToXml(self, peg_rev=False, peg_rev_upstream=True, peg_rev_dest_branch=True, groups=None):
+  def ToXml(self, peg_rev=False, peg_rev_upstream=True,
+            peg_rev_dest_branch=True, groups=None, omit_local=False):
     """Return the current manifest XML."""
     mp = self.manifestProject
 
@@ -547,7 +551,7 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
     if d.upstreamExpr:
       have_default = True
       e.setAttribute('upstream', d.upstreamExpr)
-    if d.sync_j > 1:
+    if d.sync_j is not None:
       have_default = True
       e.setAttribute('sync-j', '%d' % d.sync_j)
     if d.sync_c:
@@ -583,6 +587,9 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
       if not p.MatchesGroups(groups):
         return
 
+      if omit_local and self.IsFromLocalManifest(p):
+        return
+
       name = p.name
       relpath = p.relpath
       if parent:
@@ -776,18 +783,21 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
 
   @property
   def is_submanifest(self):
-    """Whether this manifest is a submanifest"""
+    """Whether this manifest is a submanifest.
+
+    This is safe to use as long as the outermost manifest XML has been parsed.
+    """
     return self._outer_client and self._outer_client != self
 
   @property
   def outer_client(self):
-    """The instance of the outermost manifest client"""
+    """The instance of the outermost manifest client."""
     self._Load()
     return self._outer_client
 
   @property
   def all_manifests(self):
-    """Generator yielding all (sub)manifests."""
+    """Generator yielding all (sub)manifests, in depth-first order."""
     self._Load()
     outer = self._outer_client
     yield outer
@@ -796,7 +806,7 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
 
   @property
   def all_children(self):
-    """Generator yielding all child submanifests."""
+    """Generator yielding all (present) child submanifests."""
     self._Load()
     for child in self._submanifests.values():
       if child.repo_client:
@@ -813,7 +823,14 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
 
   @property
   def all_paths(self):
-    """All project paths for all (sub)manifests.  See `paths`."""
+    """All project paths for all (sub)manifests.
+
+    See also `paths`.
+
+    Returns:
+      A dictionary of {path: Project()}.  `path` is relative to the outer
+      manifest.
+    """
     ret = {}
     for tree in self.all_manifests:
       prefix = tree.path_prefix
@@ -829,7 +846,7 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
   def paths(self):
     """Return all paths for this manifest.
 
-    Return:
+    Returns:
       A dictionary of {path: Project()}.  `path` is relative to this manifest.
     """
     self._Load()
@@ -843,11 +860,13 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
 
   @property
   def remotes(self):
+    """Return a list of remotes for this manifest."""
     self._Load()
     return self._remotes
 
   @property
   def default(self):
+    """Return default values for this manifest."""
     self._Load()
     return self._default
 
@@ -1090,8 +1109,8 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
         if override:
           self.manifestFile = savedManifestFile
 
-      # Now that we have loaded this manifest, load any submanifest  manifests
+      # Now that we have loaded this manifest, load any submanifests as well.
-      # as well.  We need to do this after self._loaded is set to avoid looping.
+      # We need to do this after self._loaded is set to avoid looping.
       for name in self._submanifests:
         tree = self._submanifests[name]
         spec = tree.ToSubmanifestSpec()
@@ -1270,6 +1289,8 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
           remote = self._default.remote
         else:
           remote = self._get_remote(node)
+        dest_branch = node.getAttribute('dest-branch')
+        upstream = node.getAttribute('upstream')
 
         named_projects = self._projects[name]
         if dest_path and not path and len(named_projects) > 1:
@@ -1285,6 +1306,10 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
 
           if remote_name:
             p.remote = remote.ToRemoteSpec(name)
+          if dest_branch:
+            p.dest_branch = dest_branch
+          if upstream:
+            p.upstream = upstream
 
           if dest_path:
             del self._paths[p.relpath]
@@ -1369,7 +1394,7 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
 
   def _AddMetaProjectMirror(self, m):
     name = None
-    m_url = m.GetRemote(m.remote.name).url
+    m_url = m.GetRemote().url
     if m_url.endswith('/.git'):
       raise ManifestParseError('refusing to mirror %s' % m_url)
 
@@ -1446,8 +1471,8 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
     d.destBranchExpr = node.getAttribute('dest-branch') or None
     d.upstreamExpr = node.getAttribute('upstream') or None
 
-    d.sync_j = XmlInt(node, 'sync-j', 1)
+    d.sync_j = XmlInt(node, 'sync-j', None)
-    if d.sync_j <= 0:
+    if d.sync_j is not None and d.sync_j <= 0:
       raise ManifestParseError('%s: sync-j must be greater than 0, not "%s"' %
                                (self.manifestFile, d.sync_j))
 
@@ -1659,6 +1684,10 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
       name: a string, the name of the project.
       path: a string, the path of the project.
       remote: a string, the remote.name of the project.
+
+    Returns:
+      A tuple of (relpath, worktree, gitdir, objdir, use_git_worktrees) for the
+      project with |name| and |path|.
     """
     # The manifest entries might have trailing slashes.  Normalize them to avoid
     # unexpected filesystem behavior since we do string concatenation below.
@@ -1666,7 +1695,7 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
     name = name.rstrip('/')
     remote = remote.rstrip('/')
     use_git_worktrees = False
-    use_remote_name = bool(self._outer_client._submanifests)
+    use_remote_name = self.is_multimanifest
     relpath = path
     if self.IsMirror:
       worktree = None
@@ -1696,6 +1725,9 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
       name: a string, the name of the project.
       all_manifests: a boolean, if True, then all manifests are searched. If
                      False, then only this manifest is searched.
+
+    Returns:
+      A list of Project instances with name |name|.
     """
     if all_manifests:
       return list(itertools.chain.from_iterable(
@@ -1914,11 +1946,14 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
     fromKeys = sorted(fromProjects.keys())
     toKeys = sorted(toProjects.keys())
 
-    diff = {'added': [], 'removed': [], 'changed': [], 'unreachable': []}
+    diff = {'added': [], 'removed': [], 'missing': [], 'changed': [], 'unreachable': []}
 
     for proj in fromKeys:
       if proj not in toKeys:
         diff['removed'].append(fromProjects[proj])
+      elif not fromProjects[proj].Exists:
+        diff['missing'].append(toProjects[proj])
+        toKeys.remove(proj)
       else:
         fromProj = fromProjects[proj]
         toProj = toProjects[proj]
@@ -1956,6 +1991,16 @@ class RepoClient(XmlManifest):
   """Manages a repo client checkout."""
 
   def __init__(self, repodir, manifest_file=None, submanifest_path='', **kwargs):
+    """Initialize.
+
+    Args:
+      repodir: Path to the .repo/ dir for holding all internal checkout state.
+          It must be in the top directory of the repo client checkout.
+      manifest_file: Full path to the manifest file to parse.  This will usually
+          be |repodir|/|MANIFEST_FILE_NAME|.
+      submanifest_path: The submanifest root relative to the repo root.
+      **kwargs: Additional keyword arguments, passed to XmlManifest.
+    """
     self.isGitcClient = False
     submanifest_path = submanifest_path or ''
     if submanifest_path:

pager.py

@@ -56,8 +56,11 @@ def _PipePager(pager):
   global pager_process, old_stdout, old_stderr
   assert pager_process is None, "Only one active pager process at a time"
   # Create pager process, piping stdout/err into its stdin
-  pager_process = subprocess.Popen([pager], stdin=subprocess.PIPE, stdout=sys.stdout,
+  try:
-                                   stderr=sys.stderr)
+    pager_process = subprocess.Popen([pager], stdin=subprocess.PIPE, stdout=sys.stdout,
+                                     stderr=sys.stderr)
+  except FileNotFoundError:
+    sys.exit(f'fatal: cannot start pager "{pager}"')
   old_stdout = sys.stdout
   old_stderr = sys.stderr
   sys.stdout = pager_process.stdin

project.py

@@ -26,6 +26,7 @@ import sys
 import tarfile
 import tempfile
 import time
+from typing import NamedTuple
 import urllib.parse
 
 from color import Coloring
@@ -33,23 +34,32 @@ import fetch
 from git_command import GitCommand, git_require
 from git_config import GitConfig, IsId, GetSchemeFromUrl, GetUrlCookieFile, \
     ID_RE
+import git_superproject
 from git_trace2_event_log import EventLog
 from error import GitError, UploadError, DownloadError
 from error import ManifestInvalidRevisionError, ManifestInvalidPathError
 from error import NoManifestException, ManifestParseError
 import platform_utils
 import progress
-from repo_trace import IsTrace, Trace
+from repo_trace import Trace
 
 from git_refs import GitRefs, HEAD, R_HEADS, R_TAGS, R_PUB, R_M, R_WORKTREE_M
 
 
+class SyncNetworkHalfResult(NamedTuple):
+  """Sync_NetworkHalf return value."""
+  # True if successful.
+  success: bool
+  # Did we query the remote? False when optimized_fetch is True and we have the
+  # commit already present.
+  remote_fetched: bool
+
 # Maximum sleep time allowed during retries.
 MAXIMUM_RETRY_SLEEP_SEC = 3600.0
 # +-10% random jitter is added to each Fetches retry sleep duration.
 RETRY_JITTER_PERCENT = 0.1
 
-# Whether to use alternates.
+# Whether to use alternates.  Switching back and forth is *NOT* supported.
 # TODO(vapier): Remove knob once behavior is verified.
 _ALTERNATES = os.environ.get('REPO_USE_ALTERNATES') == '1'
 
@@ -204,6 +214,7 @@ class ReviewableBranch(object):
                       private=False,
                       notify=None,
                       wip=False,
+                      ready=False,
                       dest_branch=None,
                       validate_certs=True,
                       push_options=None):
@@ -216,6 +227,7 @@ class ReviewableBranch(object):
                                  private=private,
                                  notify=notify,
                                  wip=wip,
+                                 ready=ready,
                                  dest_branch=dest_branch,
                                  validate_certs=validate_certs,
                                  push_options=push_options)
@@ -463,7 +475,13 @@ class RemoteSpec(object):
 
 class Project(object):
   # These objects can be shared between several working trees.
-  shareable_dirs = ['hooks', 'rr-cache']
+  @property
+  def shareable_dirs(self):
+    """Return the shareable directories"""
+    if self.UseAlternates:
+      return ['hooks', 'rr-cache']
+    else:
+      return ['hooks', 'objects', 'rr-cache']
 
   def __init__(self,
                manifest,
@@ -593,6 +611,14 @@ class Project(object):
     self.bare_ref = GitRefs(self.gitdir)
     self.bare_objdir = self._GitGetByExec(self, bare=True, gitdir=self.objdir)
 
+  @property
+  def UseAlternates(self):
+    """Whether git alternates are in use.
+
+    This will be removed once migration to alternates is complete.
+    """
+    return _ALTERNATES or self.manifest.is_multimanifest
+
   @property
   def Derived(self):
     return self.is_derived
@@ -635,7 +661,7 @@ class Project(object):
       return True
     if self.work_git.DiffZ('diff-files'):
       return True
-    if consider_untracked and self.work_git.LsOthers():
+    if consider_untracked and self.UntrackedFiles():
       return True
     return False
 
@@ -669,9 +695,13 @@ class Project(object):
       self._userident_name = ''
       self._userident_email = ''
 
-  def GetRemote(self, name):
+  def GetRemote(self, name=None):
     """Get the configuration for a single remote.
+
+    Defaults to the current project's remote.
     """
+    if name is None:
+      name = self.remote.name
     return self.config.GetRemote(name)
 
   def GetBranch(self, name):
@@ -764,33 +794,37 @@ class Project(object):
       if not get_all:
         return details
 
-    changes = self.work_git.LsOthers()
+    changes = self.UntrackedFiles()
     if changes:
       details.extend(changes)
 
     return details
 
+  def UntrackedFiles(self):
+    """Returns a list of strings, untracked files in the git tree."""
+    return self.work_git.LsOthers()
+
   def HasChanges(self):
     """Returns true if there are uncommitted changes.
     """
-    if self.UncommitedFiles(get_all=False):
+    return bool(self.UncommitedFiles(get_all=False))
-      return True
-    else:
-      return False
 
-  def PrintWorkTreeStatus(self, output_redir=None, quiet=False):
+  def PrintWorkTreeStatus(self, output_redir=None, quiet=False, local=False):
     """Prints the status of the repository to stdout.
 
     Args:
       output_redir: If specified, redirect the output to this object.
       quiet:  If True then only print the project name.  Do not print
               the modified files, branch name, etc.
+      local: a boolean, if True, the path is relative to the local
+             (sub)manifest.  If false, the path is relative to the
+             outermost manifest.
     """
     if not platform_utils.isdir(self.worktree):
       if output_redir is None:
         output_redir = sys.stdout
       print(file=output_redir)
-      print('project %s/' % self.relpath, file=output_redir)
+      print('project %s/' % self.RelPath(local), file=output_redir)
       print('  missing (run "repo sync")', file=output_redir)
       return
 
@@ -808,7 +842,7 @@ class Project(object):
     out = StatusColoring(self.config)
     if output_redir is not None:
       out.redirect(output_redir)
-    out.project('project %-40s', self.relpath + '/ ')
+    out.project('project %-40s', self.RelPath(local) + '/ ')
 
     if quiet:
       out.nl()
@@ -869,7 +903,8 @@ class Project(object):
 
     return 'DIRTY'
 
-  def PrintWorkTreeDiff(self, absolute_paths=False, output_redir=None):
+  def PrintWorkTreeDiff(self, absolute_paths=False, output_redir=None,
+                        local=False):
     """Prints the status of the repository to stdout.
     """
     out = DiffColoring(self.config)
@@ -880,8 +915,8 @@ class Project(object):
       cmd.append('--color')
     cmd.append(HEAD)
     if absolute_paths:
-      cmd.append('--src-prefix=a/%s/' % self.relpath)
+      cmd.append('--src-prefix=a/%s/' % self.RelPath(local))
-      cmd.append('--dst-prefix=b/%s/' % self.relpath)
+      cmd.append('--dst-prefix=b/%s/' % self.RelPath(local))
     cmd.append('--')
     try:
       p = GitCommand(self,
@@ -891,14 +926,14 @@ class Project(object):
       p.Wait()
     except GitError as e:
       out.nl()
-      out.project('project %s/' % self.relpath)
+      out.project('project %s/' % self.RelPath(local))
       out.nl()
       out.fail('%s', str(e))
       out.nl()
       return False
     if p.stdout:
       out.nl()
-      out.project('project %s/' % self.relpath)
+      out.project('project %s/' % self.RelPath(local))
       out.nl()
       out.write('%s', p.stdout)
     return p.Wait() == 0
@@ -983,6 +1018,7 @@ class Project(object):
                       private=False,
                       notify=None,
                       wip=False,
+                      ready=False,
                       dest_branch=None,
                       validate_certs=True,
                       push_options=None):
@@ -1052,6 +1088,8 @@ class Project(object):
       opts += ['private']
     if wip:
       opts += ['wip']
+    if ready:
+      opts += ['ready']
     if opts:
       ref_spec = ref_spec + '%' + ','.join(opts)
     cmd.append(ref_spec)
@@ -1104,7 +1142,7 @@ class Project(object):
     if archive and not isinstance(self, MetaProject):
       if self.remote.url.startswith(('http://', 'https://')):
         _error("%s: Cannot fetch archives from http/https remotes.", self.name)
-        return False
+        return SyncNetworkHalfResult(False, False)
 
       name = self.relpath.replace('\\', '/')
       name = name.replace('/', '_')
@@ -1115,19 +1153,19 @@ class Project(object):
         self._FetchArchive(tarpath, cwd=topdir)
       except GitError as e:
         _error('%s', e)
-        return False
+        return SyncNetworkHalfResult(False, False)
 
       # From now on, we only need absolute tarpath
       tarpath = os.path.join(topdir, tarpath)
 
       if not self._ExtractArchive(tarpath, path=topdir):
-        return False
+        return SyncNetworkHalfResult(False, True)
       try:
         platform_utils.remove(tarpath)
       except OSError as e:
         _warn("Cannot remove archive %s: %s", tarpath, str(e))
       self._CopyAndLinkFiles()
-      return True
+      return SyncNetworkHalfResult(True, True)
 
     # If the shared object dir already exists, don't try to rebootstrap with a
     # clone bundle download.  We should have the majority of objects already.
@@ -1146,7 +1184,7 @@ class Project(object):
       self._UpdateHooks(quiet=quiet)
     self._InitRemote()
 
-    if _ALTERNATES or self.manifest.is_multimanifest:
+    if self.UseAlternates:
       # If gitdir/objects is a symlink, migrate it from the old layout.
       gitdir_objects = os.path.join(self.gitdir, 'objects')
       if platform_utils.islink(gitdir_objects):
@@ -1191,9 +1229,11 @@ class Project(object):
       depth = self.manifest.manifestProject.depth
 
     # See if we can skip the network fetch entirely.
+    remote_fetched = False
     if not (optimized_fetch and
             (ID_RE.match(self.revisionExpr) and
              self._CheckForImmutableRevision())):
+      remote_fetched = True
       if not self._RemoteFetch(
               initial=is_new,
               quiet=quiet, verbose=verbose, output_redir=output_redir,
@@ -1202,7 +1242,7 @@ class Project(object):
               submodules=submodules, force_sync=force_sync,
               ssh_proxy=ssh_proxy,
               clone_filter=clone_filter, retry_fetches=retry_fetches):
-        return False
+        return SyncNetworkHalfResult(False, remote_fetched)
 
     mp = self.manifest.manifestProject
     dissociate = mp.dissociate
@@ -1215,7 +1255,7 @@ class Project(object):
         if p.stdout and output_redir:
           output_redir.write(p.stdout)
         if p.Wait() != 0:
-          return False
+          return SyncNetworkHalfResult(False, remote_fetched)
         platform_utils.remove(alternates_file)
 
     if self.worktree:
@@ -1224,7 +1264,7 @@ class Project(object):
       self._InitMirrorHead()
       platform_utils.remove(os.path.join(self.gitdir, 'FETCH_HEAD'),
                             missing_ok=True)
-    return True
+    return SyncNetworkHalfResult(True, remote_fetched)
 
   def PostRepoUpgrade(self):
     self._InitHooks()
@@ -1257,7 +1297,7 @@ class Project(object):
     if self.revisionId:
       return self.revisionId
 
-    rem = self.GetRemote(self.remote.name)
+    rem = self.GetRemote()
     rev = rem.ToLocal(self.revisionExpr)
 
     if all_refs is not None and rev in all_refs:
@@ -1422,6 +1462,8 @@ class Project(object):
         cnt_mine += 1
 
     if not upstream_gain and cnt_mine == len(local_changes):
+      # The copy/linkfile config may have changed.
+      self._CopyAndLinkFiles()
       return
 
     if self.IsDirty(consider_untracked=False):
@@ -1449,7 +1491,7 @@ class Project(object):
                    "discarding %d commits removed from upstream",
                    len(local_changes) - cnt_mine)
 
-    branch.remote = self.GetRemote(self.remote.name)
+    branch.remote = self.GetRemote()
     if not ID_RE.match(self.revisionExpr):
       # in case of manifest sync the revisionExpr might be a SHA1
       branch.merge = self.revisionExpr
@@ -1507,7 +1549,7 @@ class Project(object):
   def DownloadPatchSet(self, change_id, patch_id):
     """Download a single patch set of a single change to FETCH_HEAD.
     """
-    remote = self.GetRemote(self.remote.name)
+    remote = self.GetRemote()
 
     cmd = ['fetch', remote.name]
     cmd.append('refs/changes/%2.2d/%d/%d'
@@ -1537,14 +1579,14 @@ class Project(object):
     if self.IsDirty():
       if force:
         print('warning: %s: Removing dirty project: uncommitted changes lost.' %
-              (self.relpath,), file=sys.stderr)
+              (self.RelPath(local=False),), file=sys.stderr)
       else:
         print('error: %s: Cannot remove project: uncommitted changes are '
-              'present.\n' % (self.relpath,), file=sys.stderr)
+              'present.\n' % (self.RelPath(local=False),), file=sys.stderr)
         return False
 
     if not quiet:
-      print('%s: Deleting obsolete checkout.' % (self.relpath,))
+      print('%s: Deleting obsolete checkout.' % (self.RelPath(local=False),))
 
     # Unlock and delink from the main worktree.  We don't use git's worktree
     # remove because it will recursively delete projects -- we handle that
@@ -1583,7 +1625,8 @@ class Project(object):
       if e.errno != errno.ENOENT:
         print('error: %s: %s' % (self.gitdir, e), file=sys.stderr)
         print('error: %s: Failed to delete obsolete checkout; remove manually, '
-              'then run `repo sync -l`.' % (self.relpath,), file=sys.stderr)
+              'then run `repo sync -l`.' % (self.RelPath(local=False),),
+              file=sys.stderr)
         return False
 
     # Delete everything under the worktree, except for directories that contain
@@ -1619,7 +1662,7 @@ class Project(object):
             print('error: %s: Failed to remove: %s' % (d, e), file=sys.stderr)
             failed = True
     if failed:
-      print('error: %s: Failed to delete obsolete checkout.' % (self.relpath,),
+      print('error: %s: Failed to delete obsolete checkout.' % (self.RelPath(local=False),),
             file=sys.stderr)
       print('       Remove manually, then run `repo sync -l`.', file=sys.stderr)
       return False
@@ -1648,13 +1691,10 @@ class Project(object):
 
     all_refs = self.bare_ref.all
     if R_HEADS + name in all_refs:
-      return GitCommand(self,
+      return GitCommand(self, ['checkout', '-q', name, '--']).Wait() == 0
-                        ['checkout', name, '--'],
-                        capture_stdout=True,
-                        capture_stderr=True).Wait() == 0
 
     branch = self.GetBranch(name)
-    branch.remote = self.GetRemote(self.remote.name)
+    branch.remote = self.GetRemote()
     branch.merge = branch_merge
     if not branch.merge.startswith('refs/') and not ID_RE.match(branch_merge):
       branch.merge = R_HEADS + branch_merge
@@ -1676,10 +1716,7 @@ class Project(object):
       branch.Save()
       return True
 
-    if GitCommand(self,
+    if GitCommand(self, ['checkout', '-q', '-b', branch.name, revid]).Wait() == 0:
-                  ['checkout', '-b', branch.name, revid],
-                  capture_stdout=True,
-                  capture_stderr=True).Wait() == 0:
       branch.Save()
       return True
     return False
@@ -2022,7 +2059,7 @@ class Project(object):
       self.bare_git.rev_list('-1', '--missing=allow-any',
                              '%s^0' % self.revisionExpr, '--')
       if self.upstream:
-        rev = self.GetRemote(self.remote.name).ToLocal(self.upstream)
+        rev = self.GetRemote().ToLocal(self.upstream)
         self.bare_git.rev_list('-1', '--missing=allow-any',
                                '%s^0' % rev, '--')
         self.bare_git.merge_base('--is-ancestor', self.revisionExpr, rev)
@@ -2034,7 +2071,7 @@ class Project(object):
   def _FetchArchive(self, tarpath, cwd=None):
     cmd = ['archive', '-v', '-o', tarpath]
     cmd.append('--remote=%s' % self.remote.url)
-    cmd.append('--prefix=%s/' % self.relpath)
+    cmd.append('--prefix=%s/' % self.RelPath(local=False))
     cmd.append(self.revisionExpr)
 
     command = GitCommand(self, cmd, cwd=cwd,
@@ -2180,6 +2217,8 @@ class Project(object):
     if prune:
       cmd.append('--prune')
 
+    # Always pass something for --recurse-submodules, git with GIT_DIR behaves
+    # incorrectly when not given `--recurse-submodules=no`. (b/218891912)
     cmd.append(f'--recurse-submodules={"on-demand" if submodules else "no"}')
 
     spec = []
@@ -2311,7 +2350,7 @@ class Project(object):
     if initial and (self.manifest.manifestProject.depth or self.clone_depth):
       return False
 
-    remote = self.GetRemote(self.remote.name)
+    remote = self.GetRemote()
     bundle_url = remote.url + '/clone.bundle'
     bundle_url = GitConfig.ForUser().UrlInsteadOf(bundle_url)
     if GetSchemeFromUrl(bundle_url) not in ('http', 'https',
@@ -2377,16 +2416,16 @@ class Project(object):
         srcUrl = 'http' + srcUrl[len('persistent-http'):]
       cmd += [srcUrl]
 
-      if IsTrace():
+      proc = None
-        Trace('%s', ' '.join(cmd))
+      with Trace('Fetching bundle: %s', ' '.join(cmd)):
-      if verbose:
+        if verbose:
-        print('%s: Downloading bundle: %s' % (self.name, srcUrl))
+          print('%s: Downloading bundle: %s' % (self.name, srcUrl))
-      stdout = None if verbose else subprocess.PIPE
+        stdout = None if verbose else subprocess.PIPE
-      stderr = None if verbose else subprocess.STDOUT
+        stderr = None if verbose else subprocess.STDOUT
-      try:
+        try:
-        proc = subprocess.Popen(cmd, stdout=stdout, stderr=stderr)
+          proc = subprocess.Popen(cmd, stdout=stdout, stderr=stderr)
-      except OSError:
+        except OSError:
-        return False
+          return False
 
       (output, _) = proc.communicate()
       curlret = proc.returncode
@@ -2616,7 +2655,7 @@ class Project(object):
         if not filecmp.cmp(stock_hook, dst, shallow=False):
           if not quiet:
             _warn("%s: Not replacing locally modified %s hook",
-                  self.relpath, name)
+                  self.RelPath(local=False), name)
         continue
       try:
         platform_utils.symlink(
@@ -2632,7 +2671,7 @@ class Project(object):
 
   def _InitRemote(self):
     if self.remote.url:
-      remote = self.GetRemote(self.remote.name)
+      remote = self.GetRemote()
       remote.url = self.remote.url
       remote.pushUrl = self.remote.pushUrl
       remote.review = self.remote.review
@@ -2645,6 +2684,7 @@ class Project(object):
       remote.Save()
 
   def _InitMRef(self):
+    """Initialize the pseudo m/<manifest branch> ref."""
     if self.manifest.branch:
       if self.use_git_worktrees:
         # Set up the m/ space to point to the worktree-specific ref space.
@@ -2674,6 +2714,16 @@ class Project(object):
     self._InitAnyMRef(HEAD, self.bare_git)
 
   def _InitAnyMRef(self, ref, active_git, detach=False):
+    """Initialize |ref| in |active_git| to the value in the manifest.
+
+    This points |ref| to the <project> setting in the manifest.
+
+    Args:
+      ref: The branch to update.
+      active_git: The git repository to make updates in.
+      detach: Whether to update target of symbolic refs, or overwrite the ref
+        directly (and thus make it non-symbolic).
+    """
     cur = self.bare_ref.symref(ref)
 
     if self.revisionId:
@@ -2682,7 +2732,7 @@ class Project(object):
         dst = self.revisionId + '^0'
         active_git.UpdateRef(ref, dst, message=msg, detach=True)
     else:
-      remote = self.GetRemote(self.remote.name)
+      remote = self.GetRemote()
       dst = remote.ToLocal(self.revisionExpr)
       if cur != dst:
         msg = 'manifest set to %s' % self.revisionExpr
@@ -2711,7 +2761,7 @@ class Project(object):
                          'work tree. If you\'re comfortable with the '
                          'possibility of losing the work tree\'s git metadata,'
                          ' use `repo sync --force-sync {0}` to '
-                         'proceed.'.format(self.relpath))
+                         'proceed.'.format(self.RelPath(local=False)))
 
   def _ReferenceGitDir(self, gitdir, dotgit, copy_all):
     """Update |dotgit| to reference |gitdir|, using symlinks where possible.
@@ -3191,7 +3241,7 @@ class _InfoMessage(object):
     self.text = text
 
   def Print(self, syncbuf):
-    syncbuf.out.info('%s/: %s', self.project.relpath, self.text)
+    syncbuf.out.info('%s/: %s', self.project.RelPath(local=False), self.text)
     syncbuf.out.nl()
 
 
@@ -3203,7 +3253,7 @@ class _Failure(object):
 
   def Print(self, syncbuf):
     syncbuf.out.fail('error: %s/: %s',
-                     self.project.relpath,
+                     self.project.RelPath(local=False),
                      str(self.why))
     syncbuf.out.nl()
 
@@ -3216,7 +3266,7 @@ class _Later(object):
 
   def Run(self, syncbuf):
     out = syncbuf.out
-    out.project('project %s/', self.project.relpath)
+    out.project('project %s/', self.project.RelPath(local=False))
     out.nl()
     try:
       self.action()
@@ -3486,8 +3536,8 @@ class ManifestProject(MetaProject):
       git_event_log: an EventLog, for git tracing.
     """
     # TODO(lamontjones): when refactoring sync (and init?) consider how to
-    # better get the init options that we should use when syncing uncovers a new
+    # better get the init options that we should use for new submanifests that
-    # submanifest.
+    # are added when syncing an existing workspace.
     git_event_log = git_event_log or EventLog()
     spec = submanifest.ToSubmanifestSpec()
     # Use the init options from the existing manifestProject, or the parent if
@@ -3674,7 +3724,7 @@ class ManifestProject(MetaProject):
 
     # Set the remote URL before the remote branch as we might need it below.
     if manifest_url:
-      r = self.GetRemote(self.remote.name)
+      r = self.GetRemote()
       r.url = manifest_url
       r.ResetFetch()
       r.Save()
@@ -3799,8 +3849,8 @@ class ManifestProject(MetaProject):
           is_new=is_new, quiet=not verbose, verbose=verbose,
           clone_bundle=clone_bundle, current_branch_only=current_branch_only,
           tags=tags, submodules=submodules, clone_filter=clone_filter,
-          partial_clone_exclude=self.manifest.PartialCloneExclude):
+          partial_clone_exclude=self.manifest.PartialCloneExclude).success:
-        r = self.GetRemote(self.remote.name)
+        r = self.GetRemote()
         print('fatal: cannot obtain manifest %s' % r.url, file=sys.stderr)
 
         # Better delete the manifest git dir if we created it; otherwise next
@@ -3874,8 +3924,8 @@ class ManifestProject(MetaProject):
         )
 
     # Lastly, if the manifest has a <superproject> then have the superproject
-    # sync it if it will be used.
+    # sync it (if it will be used).
-    if self.manifest.superproject:
+    if git_superproject.UseSuperproject(use_superproject, self.manifest):
       sync_result = self.manifest.superproject.Sync(git_event_log)
       if not sync_result.success:
         print('warning: git update of superproject for '

release/update-manpages

@@ -59,18 +59,26 @@ def main(argv):
   version = RepoSourceVersion()
   cmdlist = [['help2man', '-N', '-n', f'repo {cmd} - manual page for repo {cmd}',
     '-S', f'repo {cmd}', '-m', 'Repo Manual', f'--version-string={version}',
-    '-o', MANDIR.joinpath(f'repo-{cmd}.1.tmp'), TOPDIR.joinpath('repo'),
+    '-o', MANDIR.joinpath(f'repo-{cmd}.1.tmp'), './repo',
     '-h', f'help {cmd}'] for cmd in subcmds.all_commands]
   cmdlist.append(['help2man', '-N', '-n', 'repository management tool built on top of git',
     '-S', 'repo', '-m', 'Repo Manual', f'--version-string={version}',
-    '-o', MANDIR.joinpath('repo.1.tmp'), TOPDIR.joinpath('repo'),
+    '-o', MANDIR.joinpath('repo.1.tmp'), './repo',
     '-h', '--help-all'])
 
   with tempfile.TemporaryDirectory() as tempdir:
-    repo_dir = Path(tempdir) / '.repo'
+    tempdir = Path(tempdir)
+    repo_dir = tempdir / '.repo'
     repo_dir.mkdir()
     (repo_dir / 'repo').symlink_to(TOPDIR)
 
+    # Create a repo wrapper using the active Python executable.  We can't pass
+    # this directly to help2man as it's too simple, so insert it via shebang.
+    data = (TOPDIR / 'repo').read_text(encoding='utf-8')
+    tempbin = tempdir / 'repo'
+    tempbin.write_text(f'#!{sys.executable}\n' + data, encoding='utf-8')
+    tempbin.chmod(0o755)
+
     # Run all cmd in parallel, and wait for them to finish.
     with multiprocessing.Pool() as pool:
       pool.map(partial(worker, cwd=tempdir, check=True), cmdlist)

repo

@@ -149,7 +149,7 @@ if not REPO_REV:
 BUG_URL = 'https://bugs.chromium.org/p/gerrit/issues/entry?template=Repo+tool+issue'
 
 # increment this whenever we make important changes to this script
-VERSION = (2, 21)
+VERSION = (2, 29)
 
 # increment this if the MAINTAINER_KEYS block is modified
 KEYRING_VERSION = (2, 3)
@@ -316,6 +316,10 @@ def InitParser(parser, gitc_init=False):
                    help='download the manifest as a static file '
                         'rather then create a git checkout of '
                         'the manifest repo')
+  group.add_option('--manifest-depth', type='int', default=0, metavar='DEPTH',
+                   help='create a shallow clone of the manifest repo with '
+                        'given depth (0 for full clone); see git clone '
+                        '(default: %default)')
 
   # Options that only affect manifest project, and not any of the projects
   # specified in the manifest itself.
@@ -325,9 +329,9 @@ def InitParser(parser, gitc_init=False):
   # want -c, so try to satisfy both as best we can.
   if not gitc_init:
     cbr_opts += ['-c']
-  group.add_option(*cbr_opts,
+  group.add_option(*cbr_opts, default=True,
                    dest='current_branch_only', action='store_true',
-                   help='fetch only current manifest branch from server')
+                   help='fetch only current manifest branch from server (default)')
   group.add_option('--no-current-branch',
                    dest='current_branch_only', action='store_false',
                    help='fetch all manifest branches from server')
@@ -612,15 +616,20 @@ def _Init(args, gitc_init=False):
   try:
     if not opt.quiet:
       print('Downloading Repo source from', url)
-    dst = os.path.abspath(os.path.join(repodir, S_repo))
+    dst_final = os.path.abspath(os.path.join(repodir, S_repo))
+    dst = dst_final + '.tmp'
+    shutil.rmtree(dst, ignore_errors=True)
     _Clone(url, dst, opt.clone_bundle, opt.quiet, opt.verbose)
 
     remote_ref, rev = check_repo_rev(dst, rev, opt.repo_verify, quiet=opt.quiet)
     _Checkout(dst, remote_ref, rev, opt.quiet)
 
     if not os.path.isfile(os.path.join(dst, 'repo')):
-      print("warning: '%s' does not look like a git-repo repository, is "
+      print("fatal: '%s' does not look like a git-repo repository, is "
-            "REPO_URL set correctly?" % url, file=sys.stderr)
+            "--repo-url set correctly?" % url, file=sys.stderr)
+      raise CloneFailure()
+
+    os.rename(dst, dst_final)
 
   except CloneFailure:
     print('fatal: double check your --repo-rev setting.', file=sys.stderr)
@@ -1317,6 +1326,7 @@ def main(orig_args):
         print("fatal: cloning the git-repo repository failed, will remove "
               "'%s' " % path, file=sys.stderr)
         shutil.rmtree(path, ignore_errors=True)
+        shutil.rmtree(path + '.tmp', ignore_errors=True)
         sys.exit(1)
       repo_main, rel_repo_dir = _FindRepo()
     else:

repo_trace.py

@@ -15,26 +15,128 @@
 """Logic for tracing repo interactions.
 
 Activated via `repo --trace ...` or `REPO_TRACE=1 repo ...`.
+
+Temporary: Tracing is always on. Set `REPO_TRACE=0` to turn off.
+To also include trace outputs in stderr do `repo --trace_to_stderr ...`
 """
 
 import sys
 import os
+import tempfile
+import time
+from contextlib import ContextDecorator
 
 # Env var to implicitly turn on tracing.
 REPO_TRACE = 'REPO_TRACE'
 
-_TRACE = os.environ.get(REPO_TRACE) == '1'
+# Temporarily set tracing to always on unless user expicitly sets to 0.
+_TRACE = os.environ.get(REPO_TRACE) != '0'
+
+_TRACE_TO_STDERR = False
+
+_TRACE_FILE = None
+
+_TRACE_FILE_NAME = 'TRACE_FILE'
+
+_MAX_SIZE = 5  # in mb
+
+_NEW_COMMAND_SEP = '+++++++++++++++NEW COMMAND+++++++++++++++++++'
+
+
+def IsStraceToStderr():
+  return _TRACE_TO_STDERR
 
 
 def IsTrace():
   return _TRACE
 
 
+def SetTraceToStderr():
+  global _TRACE_TO_STDERR
+  _TRACE_TO_STDERR = True
+
+
 def SetTrace():
   global _TRACE
   _TRACE = True
 
 
-def Trace(fmt, *args):
+def _SetTraceFile():
-  if IsTrace():
+  global _TRACE_FILE
-    print(fmt % args, file=sys.stderr)
+  _TRACE_FILE = _GetTraceFile()
+
+
+class Trace(ContextDecorator):
+
+    def _time(self):
+      """Generate nanoseconds of time in a py3.6 safe way"""
+      return int(time.time()*1e+9)
+
+    def __init__(self, fmt, *args, first_trace=False):
+      if not IsTrace():
+        return
+      self._trace_msg = fmt % args
+
+      if not _TRACE_FILE:
+        _SetTraceFile()
+
+      if first_trace:
+        _ClearOldTraces()
+        self._trace_msg = '%s %s' % (_NEW_COMMAND_SEP, self._trace_msg)
+
+
+    def __enter__(self):
+      if not IsTrace():
+        return self
+
+      print_msg = f"PID: {os.getpid()} START: {self._time()} :" + self._trace_msg + '\n'
+
+      with open(_TRACE_FILE, 'a') as f:
+        print(print_msg, file=f)
+
+      if _TRACE_TO_STDERR:
+        print(print_msg, file=sys.stderr)
+
+      return self
+
+    def __exit__(self, *exc):
+      if not IsTrace():
+        return False
+
+      print_msg = f"PID: {os.getpid()} END: {self._time()} :" + self._trace_msg + '\n'
+
+      with open(_TRACE_FILE, 'a') as f:
+        print(print_msg, file=f)
+
+      if _TRACE_TO_STDERR:
+        print(print_msg, file=sys.stderr)
+
+      return False
+
+
+def _GetTraceFile():
+  """Get the trace file or create one."""
+  # TODO: refactor to pass repodir to Trace.
+  repo_dir = os.path.dirname(os.path.dirname(__file__))
+  trace_file = os.path.join(repo_dir, _TRACE_FILE_NAME)
+  print('Trace outputs in %s' % trace_file)
+  return trace_file
+
+def _ClearOldTraces():
+  """Clear traces from old commands if trace file is too big.
+
+  Note: If the trace file contains output from two `repo`
+        commands that were running at the same time, this
+        will not work precisely.
+  """
+  if os.path.isfile(_TRACE_FILE):
+    while os.path.getsize(_TRACE_FILE)/(1024*1024) > _MAX_SIZE:
+      temp = tempfile.NamedTemporaryFile(mode='w', delete=False)
+      with open(_TRACE_FILE, 'r', errors='ignore') as fin:
+        trace_lines = fin.readlines()
+        for i , l in enumerate(trace_lines):
+          if 'END:' in l and _NEW_COMMAND_SEP in l:
+            temp.writelines(trace_lines[i+1:])
+            break
+      temp.close()
+      os.replace(temp.name, _TRACE_FILE)

run_tests

@@ -20,6 +20,7 @@ import os
 import shutil
 import subprocess
 import sys
+import repo_trace
 
 
 def find_pytest():

ssh.py

@@ -182,28 +182,29 @@ class ProxyManager:
     # be important because we can't tell that that 'git@myhost.com' is the same
     # as 'myhost.com' where "User git" is setup in the user's ~/.ssh/config file.
     check_command = command_base + ['-O', 'check']
-    try:
+    with Trace('Call to ssh (check call): %s', ' '.join(check_command)):
-      Trace(': %s', ' '.join(check_command))
+      try:
-      check_process = subprocess.Popen(check_command,
+        check_process = subprocess.Popen(check_command,
-                                       stdout=subprocess.PIPE,
+                                        stdout=subprocess.PIPE,
-                                       stderr=subprocess.PIPE)
+                                        stderr=subprocess.PIPE)
-      check_process.communicate()  # read output, but ignore it...
+        check_process.communicate()  # read output, but ignore it...
-      isnt_running = check_process.wait()
+        isnt_running = check_process.wait()
 
-      if not isnt_running:
+        if not isnt_running:
-        # Our double-check found that the master _was_ infact running.  Add to
+          # Our double-check found that the master _was_ infact running.  Add to
-        # the list of keys.
+          # the list of keys.
-        self._master_keys[key] = True
+          self._master_keys[key] = True
-        return True
+          return True
-    except Exception:
+      except Exception:
-      # Ignore excpetions.  We we will fall back to the normal command and print
+        # Ignore excpetions.  We we will fall back to the normal command and
-      # to the log there.
+        # print to the log there.
-      pass
+        pass
 
     command = command_base[:1] + ['-M', '-N'] + command_base[1:]
+    p = None
     try:
-      Trace(': %s', ' '.join(command))
+      with Trace('Call to ssh: %s', ' '.join(command)):
-      p = subprocess.Popen(command)
+        p = subprocess.Popen(command)
     except Exception as e:
       self._master_broken.value = True
       print('\nwarn: cannot enable ssh control master for %s:%s\n%s'

subcmds/cherry_pick.py

@@ -60,8 +60,10 @@ change id will be added.
                    capture_stderr=True)
     status = p.Wait()
 
-    print(p.stdout, file=sys.stdout)
+    if p.stdout:
-    print(p.stderr, file=sys.stderr)
+      print(p.stdout.strip(), file=sys.stdout)
+    if p.stderr:
+      print(p.stderr.strip(), file=sys.stderr)
 
     if status == 0:
       # The cherry-pick was applied correctly. We just need to edit the

subcmds/diff.py

@@ -35,18 +35,21 @@ to the Unix 'patch' command.
                  dest='absolute', action='store_true',
                  help='paths are relative to the repository root')
 
-  def _ExecuteOne(self, absolute, project):
+  def _ExecuteOne(self, absolute, local, project):
     """Obtains the diff for a specific project.
 
     Args:
       absolute: Paths are relative to the root.
+      local: a boolean, if True, the path is relative to the local
+             (sub)manifest.  If false, the path is relative to the
+             outermost manifest.
       project: Project to get status of.
 
     Returns:
       The status of the project.
     """
     buf = io.StringIO()
-    ret = project.PrintWorkTreeDiff(absolute, output_redir=buf)
+    ret = project.PrintWorkTreeDiff(absolute, output_redir=buf, local=local)
     return (ret, buf.getvalue())
 
   def Execute(self, opt, args):
@@ -63,7 +66,7 @@ to the Unix 'patch' command.
 
     return self.ExecuteInParallel(
         opt.jobs,
-        functools.partial(self._ExecuteOne, opt.absolute),
+        functools.partial(self._ExecuteOne, opt.absolute, opt.this_manifest_only),
         all_projects,
         callback=_ProcessResults,
         ordered=True)

subcmds/diffmanifests.py

@@ -118,6 +118,16 @@ synced and their revisions won't be found.
         self.printRevision(project.revisionExpr)
         self.out.nl()
 
+    if diff['missing']:
+      self.out.nl()
+      self.printText('missing projects : \n')
+      self.out.nl()
+      for project in diff['missing']:
+        self.printProject('\t%s' % (project.relpath))
+        self.printText(' at revision ')
+        self.printRevision(project.revisionExpr)
+        self.out.nl()
+
     if diff['changed']:
       self.out.nl()
       self.printText('changed projects : \n')

subcmds/gitc_init.py

@@ -68,7 +68,8 @@ use for this GITC client.
         sys.exit(1)
       manifest_file = opt.manifest_file
 
-    manifest = GitcManifest(self.repodir, gitc_client)
+    manifest = GitcManifest(self.repodir, os.path.join(self.client_dir,
+                                                       '.manifest'))
     manifest.Override(manifest_file)
     gitc_utils.generate_gitc_manifest(None, manifest)
     print('Please run `cd %s` to view your GITC client.' %

subcmds/init.py

@@ -109,6 +109,10 @@ to update the working directory files.
     Args:
       opt: options from optparse.
     """
+    # Normally this value is set when instantiating the project, but the
+    # manifest project is special and is created when instantiating the
+    # manifest which happens before we parse options.
+    self.manifest.manifestProject.clone_depth = opt.manifest_depth
     if not self.manifest.manifestProject.Sync(
         manifest_url=opt.manifest_url,
         manifest_branch=opt.manifest_branch,
@@ -144,7 +148,7 @@ to update the working directory files.
       return value
     return a
 
-  def _ShouldConfigureUser(self, opt):
+  def _ShouldConfigureUser(self, opt, existing_checkout):
     gc = self.client.globalConfig
     mp = self.manifest.manifestProject
 
@@ -156,7 +160,7 @@ to update the working directory files.
       mp.config.SetString('user.name', gc.GetString('user.name'))
       mp.config.SetString('user.email', gc.GetString('user.email'))
 
-    if not opt.quiet:
+    if not opt.quiet and not existing_checkout or opt.verbose:
       print()
       print('Your identity is: %s <%s>' % (mp.config.GetString('user.name'),
                                            mp.config.GetString('user.email')))
@@ -241,7 +245,7 @@ to update the working directory files.
     if current_dir != self.manifest.topdir:
       print('If this is not the directory in which you want to initialize '
             'repo, please run:')
-      print('   rm -r %s/.repo' % self.manifest.topdir)
+      print('   rm -r %s' % os.path.join(self.manifest.topdir, '.repo'))
       print('and try again.')
 
   def ValidateOptions(self, opt, args):
@@ -311,10 +315,17 @@ to update the working directory files.
       # Older versions of git supported worktree, but had dangerous gc bugs.
       git_require((2, 15, 0), fail=True, msg='git gc worktree corruption')
 
+    # Provide a short notice that we're reinitializing an existing checkout.
+    # Sometimes developers might not realize that they're in one, or that
+    # repo doesn't do nested checkouts.
+    existing_checkout = self.manifest.manifestProject.Exists
+    if not opt.quiet and existing_checkout:
+      print('repo: reusing existing repo client checkout in', self.manifest.topdir)
+
     self._SyncManifest(opt)
 
     if os.isatty(0) and os.isatty(1) and not self.manifest.IsMirror:
-      if opt.config_name or self._ShouldConfigureUser(opt):
+      if opt.config_name or self._ShouldConfigureUser(opt, existing_checkout):
         self._ConfigureUser(opt)
       self._ConfigureColor()
 

subcmds/selfupdate.py

@@ -51,7 +51,7 @@ need to be performed by an end-user.
       _PostRepoUpgrade(self.manifest)
 
     else:
-      if not rp.Sync_NetworkHalf():
+      if not rp.Sync_NetworkHalf().success:
         print("error: can't update repo", file=sys.stderr)
         sys.exit(1)
 

subcmds/stage.py

@@ -75,6 +75,7 @@ The '%prog' command stages files to prepare the next commit.
       out.nl()
 
       out.prompt('project> ')
+      out.flush()
       try:
         a = sys.stdin.readline()
       except KeyboardInterrupt:

subcmds/status.py

@@ -83,7 +83,7 @@ the following meanings:
                  dest='orphans', action='store_true',
                  help="include objects in working directory outside of repo projects")
 
-  def _StatusHelper(self, quiet, project):
+  def _StatusHelper(self, quiet, local, project):
     """Obtains the status for a specific project.
 
     Obtains the status for a project, redirecting the output to
@@ -91,13 +91,17 @@ the following meanings:
 
     Args:
       quiet: Where to output the status.
+      local: a boolean, if True, the path is relative to the local
+             (sub)manifest.  If false, the path is relative to the
+             outermost manifest.
       project: Project to get status of.
 
     Returns:
       The status of the project.
     """
     buf = io.StringIO()
-    ret = project.PrintWorkTreeStatus(quiet=quiet, output_redir=buf)
+    ret = project.PrintWorkTreeStatus(quiet=quiet, output_redir=buf,
+                                      local=local)
     return (ret, buf.getvalue())
 
   def _FindOrphans(self, dirs, proj_dirs, proj_dirs_parents, outstring):
@@ -130,7 +134,7 @@ the following meanings:
 
     counter = self.ExecuteInParallel(
         opt.jobs,
-        functools.partial(self._StatusHelper, opt.quiet),
+        functools.partial(self._StatusHelper, opt.quiet, opt.this_manifest_only),
         all_projects,
         callback=_ProcessResults,
         ordered=True)

subcmds/sync.py

@@ -21,13 +21,16 @@ import multiprocessing
 import netrc
 from optparse import SUPPRESS_HELP
 import os
+import shutil
 import socket
 import sys
 import tempfile
 import time
+from typing import NamedTuple, List, Set
 import urllib.error
 import urllib.parse
 import urllib.request
+import xml.parsers.expat
 import xmlrpc.client
 
 try:
@@ -52,20 +55,76 @@ import git_superproject
 import gitc_utils
 from project import Project
 from project import RemoteSpec
-from command import Command, MirrorSafeCommand, WORKER_BATCH_SIZE
+from command import Command, DEFAULT_LOCAL_JOBS, MirrorSafeCommand, WORKER_BATCH_SIZE
 from error import RepoChangedException, GitError, ManifestParseError
 import platform_utils
 from project import SyncBuffer
 from progress import Progress
+from repo_trace import Trace
 import ssh
 from wrapper import Wrapper
 from manifest_xml import GitcManifest
 
 _ONE_DAY_S = 24 * 60 * 60
+# Env var to implicitly turn off object backups.
+REPO_BACKUP_OBJECTS = 'REPO_BACKUP_OBJECTS'
+
+_BACKUP_OBJECTS = os.environ.get(REPO_BACKUP_OBJECTS) != '0'
+
+
+class _FetchOneResult(NamedTuple):
+  """_FetchOne return value.
+
+  Attributes:
+    success (bool): True if successful.
+    project (Project): The fetched project.
+    start (float): The starting time.time().
+    finish (float): The ending time.time().
+    remote_fetched (bool): True if the remote was actually queried.
+  """
+  success: bool
+  project: Project
+  start: float
+  finish: float
+  remote_fetched: bool
+
+
+class _FetchResult(NamedTuple):
+  """_Fetch return value.
+
+  Attributes:
+    success (bool): True if successful.
+    projects (Set[str]): The names of the git directories of fetched projects.
+  """
+  success: bool
+  projects: Set[str]
+
+
+class _FetchMainResult(NamedTuple):
+  """_FetchMain return value.
+
+  Attributes:
+    all_projects (List[Project]): The fetched projects.
+  """
+  all_projects: List[Project]
+
+
+class _CheckoutOneResult(NamedTuple):
+  """_CheckoutOne return value.
+
+  Attributes:
+    success (bool): True if successful.
+    project (Project): The project.
+    start (float): The starting time.time().
+    finish (float): The ending time.time().
+  """
+  success: bool
+  project: Project
+  start: float
+  finish: float
 
 
 class Sync(Command, MirrorSafeCommand):
-  jobs = 1
   COMMON = True
   MULTI_MANIFEST_SUPPORT = True
   helpSummary = "Update working tree to the latest revision"
@@ -168,21 +227,16 @@ If the remote SSH daemon is Gerrit Code Review, version 2.0.10 or
 later is required to fix a server side protocol bug.
 
 """
-  PARALLEL_JOBS = 1
+  # A value of 0 means we want parallel jobs, but we'll determine the default
-
+  # value later on.
-  def _CommonOptions(self, p):
+  PARALLEL_JOBS = 0
-    if self.outer_client and self.outer_client.manifest:
-      try:
-        self.PARALLEL_JOBS = self.outer_client.manifest.default.sync_j
-      except ManifestParseError:
-        pass
-    super()._CommonOptions(p)
 
   def _Options(self, p, show_smart=True):
     p.add_option('--jobs-network', default=None, type=int, metavar='JOBS',
-                 help='number of network jobs to run in parallel (defaults to --jobs)')
+                 help='number of network jobs to run in parallel (defaults to --jobs or 1)')
     p.add_option('--jobs-checkout', default=None, type=int, metavar='JOBS',
-                 help='number of local checkout jobs to run in parallel (defaults to --jobs)')
+                 help='number of local checkout jobs to run in parallel (defaults to --jobs or '
+                      f'{DEFAULT_LOCAL_JOBS})')
 
     p.add_option('-f', '--force-broken',
                  dest='force_broken', action='store_true',
@@ -316,7 +370,7 @@ later is required to fix a server side protocol bug.
     if not have_superproject:
       return
 
-    if opt.local_only:
+    if opt.local_only and manifest.superproject:
       manifest_path = manifest.superproject.manifest_path
       if manifest_path:
         self._ReloadManifest(manifest_path, manifest)
@@ -411,7 +465,7 @@ later is required to fix a server side protocol bug.
     success = False
     buf = io.StringIO()
     try:
-      success = project.Sync_NetworkHalf(
+      sync_result = project.Sync_NetworkHalf(
           quiet=opt.quiet,
           verbose=opt.verbose,
           output_redir=buf,
@@ -425,6 +479,7 @@ later is required to fix a server side protocol bug.
           ssh_proxy=self.ssh_proxy,
           clone_filter=project.manifest.CloneFilter,
           partial_clone_exclude=project.manifest.PartialCloneExclude)
+      success = sync_result.success
 
       output = buf.getvalue()
       if (opt.verbose or not success) and output:
@@ -442,7 +497,8 @@ later is required to fix a server side protocol bug.
       raise
 
     finish = time.time()
-    return (success, project, start, finish)
+    return _FetchOneResult(success, project, start, finish,
+                           sync_result.remote_fetched)
 
   @classmethod
   def _FetchInitChild(cls, ssh_proxy):
@@ -451,8 +507,9 @@ later is required to fix a server side protocol bug.
   def _Fetch(self, projects, opt, err_event, ssh_proxy):
     ret = True
 
-    jobs = opt.jobs_network if opt.jobs_network else self.jobs
+    jobs = opt.jobs_network
     fetched = set()
+    remote_fetched = set()
     pm = Progress('Fetching', len(projects), delay=False, quiet=opt.quiet)
 
     objdir_project_map = dict()
@@ -463,10 +520,16 @@ later is required to fix a server side protocol bug.
     def _ProcessResults(results_sets):
       ret = True
       for results in results_sets:
-        for (success, project, start, finish) in results:
+        for result in results:
+          success = result.success
+          project = result.project
+          start = result.start
+          finish = result.finish
           self._fetch_times.Set(project, finish - start)
           self.event_log.AddSync(project, event_log.TASK_SYNC_NETWORK,
                                  start, finish, success)
+          if result.remote_fetched:
+            remote_fetched.add(project)
           # Check for any errors before running any more tasks.
           # ...we'll let existing jobs finish, though.
           if not success:
@@ -524,7 +587,7 @@ later is required to fix a server side protocol bug.
     if not self.outer_client.manifest.IsArchive:
       self._GCProjects(projects, opt, err_event)
 
-    return (ret, fetched)
+    return _FetchResult(ret, fetched)
 
   def _FetchMain(self, opt, args, all_projects, err_event,
                  ssh_proxy, manifest):
@@ -550,7 +613,9 @@ later is required to fix a server side protocol bug.
     to_fetch.extend(all_projects)
     to_fetch.sort(key=self._fetch_times.Get, reverse=True)
 
-    success, fetched = self._Fetch(to_fetch, opt, err_event, ssh_proxy)
+    result = self._Fetch(to_fetch, opt, err_event, ssh_proxy)
+    success = result.success
+    fetched = result.projects
     if not success:
       err_event.set()
 
@@ -560,7 +625,7 @@ later is required to fix a server side protocol bug.
       if err_event.is_set():
         print('\nerror: Exited sync due to fetch errors.\n', file=sys.stderr)
         sys.exit(1)
-      return
+      return _FetchMainResult([])
 
     # Iteratively fetch missing and/or nested unregistered submodules
     previously_missing_set = set()
@@ -583,12 +648,14 @@ later is required to fix a server side protocol bug.
       if previously_missing_set == missing_set:
         break
       previously_missing_set = missing_set
-      success, new_fetched = self._Fetch(missing, opt, err_event, ssh_proxy)
+      result = self._Fetch(missing, opt, err_event, ssh_proxy)
+      success = result.success
+      new_fetched = result.projects
       if not success:
         err_event.set()
       fetched.update(new_fetched)
 
-    return all_projects
+    return _FetchMainResult(all_projects)
 
   def _CheckoutOne(self, detach_head, force_sync, project):
     """Checkout work tree for one project
@@ -620,7 +687,7 @@ later is required to fix a server side protocol bug.
     if not success:
       print('error: Cannot checkout %s' % (project.name), file=sys.stderr)
     finish = time.time()
-    return (success, project, start, finish)
+    return _CheckoutOneResult(success, project, start, finish)
 
   def _Checkout(self, all_projects, opt, err_results):
     """Checkout projects listed in all_projects
@@ -635,7 +702,11 @@ later is required to fix a server side protocol bug.
 
     def _ProcessResults(pool, pm, results):
       ret = True
-      for (success, project, start, finish) in results:
+      for result in results:
+        success = result.success
+        project = result.project
+        start = result.start
+        finish = result.finish
         self.event_log.AddSync(project, event_log.TASK_SYNC_LOCAL,
                                start, finish, success)
         # Check for any errors before running any more tasks.
@@ -651,33 +722,120 @@ later is required to fix a server side protocol bug.
       return ret
 
     return self.ExecuteInParallel(
-        opt.jobs_checkout if opt.jobs_checkout else self.jobs,
+        opt.jobs_checkout,
         functools.partial(self._CheckoutOne, opt.detach_head, opt.force_sync),
         all_projects,
         callback=_ProcessResults,
         output=Progress('Checking out', len(all_projects), quiet=opt.quiet)) and not err_results
 
+  def _backup_cruft(self, bare_git):
+    """Save a copy of any cruft from `git gc`."""
+    # Find any cruft packs in the current gitdir, and save them.
+    # b/221065125 (repo sync complains that objects are missing).  This does
+    # not prevent that state, but makes it so that the missing objects are
+    # available.
+    objdir = bare_git._project.objdir
+    pack_dir = os.path.join(objdir, 'pack')
+    bak_dir = os.path.join(objdir, '.repo', 'pack.bak')
+    if not _BACKUP_OBJECTS or not platform_utils.isdir(pack_dir):
+      return
+    files = set(platform_utils.listdir(pack_dir))
+    to_backup = []
+    for f in files:
+      base, ext = os.path.splitext(f)
+      if base + '.mtimes' in files:
+        to_backup.append(f)
+    if to_backup:
+      os.makedirs(bak_dir, exist_ok=True)
+    for fname in to_backup:
+      bak_fname = os.path.join(bak_dir, fname)
+      if not os.path.exists(bak_fname):
+        with Trace('%s saved %s', bare_git._project.name, fname):
+          # Use a tmp file so that we are sure of a complete copy.
+          shutil.copy(os.path.join(pack_dir, fname), bak_fname + '.tmp')
+          shutil.move(bak_fname + '.tmp', bak_fname)
+
+  @staticmethod
+  def _GetPreciousObjectsState(project: Project, opt):
+    """Get the preciousObjects state for the project.
+
+    Args:
+      project (Project): the project to examine, and possibly correct.
+      opt (optparse.Values): options given to sync.
+
+    Returns:
+      Expected state of extensions.preciousObjects:
+        False: Should be disabled. (not present)
+        True: Should be enabled.
+    """
+    if project.use_git_worktrees:
+      return False
+    projects = project.manifest.GetProjectsWithName(project.name,
+                                                    all_manifests=True)
+    if len(projects) == 1:
+      return False
+    relpath = project.RelPath(local=opt.this_manifest_only)
+    if len(projects) > 1:
+      # Objects are potentially shared with another project.
+      # See the logic in Project.Sync_NetworkHalf regarding UseAlternates.
+      # - When False, shared projects share (via symlink)
+      #   .repo/project-objects/{PROJECT_NAME}.git as the one-and-only objects
+      #   directory.  All objects are precious, since there is no project with a
+      #   complete set of refs.
+      # - When True, shared projects share (via info/alternates)
+      #   .repo/project-objects/{PROJECT_NAME}.git as an alternate object store,
+      #   which is written only on the first clone of the project, and is not
+      #   written subsequently.  (When Sync_NetworkHalf sees that it exists, it
+      #   makes sure that the alternates file points there, and uses a
+      #   project-local .git/objects directory for all syncs going forward.
+      # We do not support switching between the options.  The environment
+      # variable is present for testing and migration only.
+      return not project.UseAlternates
+    print(f'\r{relpath}: project not found in manifest.', file=sys.stderr)
+    return False
+
+  def _RepairPreciousObjectsState(self, project: Project, opt):
+    """Correct the preciousObjects state for the project.
+
+    Args:
+      project (Project): the project to examine, and possibly correct.
+      opt (optparse.Values): options given to sync.
+    """
+    expected = self._GetPreciousObjectsState(project, opt)
+    actual = project.config.GetBoolean('extensions.preciousObjects') or False
+    relpath = project.RelPath(local = opt.this_manifest_only)
+
+    if (expected != actual and
+        not project.config.GetBoolean('repo.preservePreciousObjects')):
+      # If this is unexpected, log it and repair.
+      Trace(f'{relpath} expected preciousObjects={expected}, got {actual}')
+      if expected:
+        if not opt.quiet:
+          print('\r%s: Shared project %s found, disabling pruning.' %
+                (relpath, project.name))
+        if git_require((2, 7, 0)):
+          project.EnableRepositoryExtension('preciousObjects')
+        else:
+          # This isn't perfect, but it's the best we can do with old git.
+          print('\r%s: WARNING: shared projects are unreliable when using '
+                'old versions of git; please upgrade to git-2.7.0+.'
+                % (relpath,),
+                file=sys.stderr)
+          project.config.SetString('gc.pruneExpire', 'never')
+      else:
+        if not opt.quiet:
+          print(f'\r{relpath}: not shared, disabling pruning.')
+        project.config.SetString('extensions.preciousObjects', None)
+        project.config.SetString('gc.pruneExpire', None)
+
   def _GCProjects(self, projects, opt, err_event):
     pm = Progress('Garbage collecting', len(projects), delay=False, quiet=opt.quiet)
     pm.update(inc=0, msg='prescan')
 
     tidy_dirs = {}
     for project in projects:
-      # Make sure pruning never kicks in with shared projects.
+      self._RepairPreciousObjectsState(project, opt)
-      if (not project.use_git_worktrees and
+
-              len(project.manifest.GetProjectsWithName(project.name, all_manifests=True)) > 1):
-        if not opt.quiet:
-          print('\r%s: Shared project %s found, disabling pruning.' %
-                (project.relpath, project.name))
-        if git_require((2, 7, 0)):
-          project.EnableRepositoryExtension('preciousObjects')
-        else:
-          # This isn't perfect, but it's the best we can do with old git.
-          print('\r%s: WARNING: shared projects are unreliable when using old '
-                'versions of git; please upgrade to git-2.7.0+.'
-                % (project.relpath,),
-                file=sys.stderr)
-          project.config.SetString('gc.pruneExpire', 'never')
       project.config.SetString('gc.autoDetach', 'false')
       # Only call git gc once per objdir, but call pack-refs for the remainder.
       if project.objdir not in tidy_dirs:
@@ -691,19 +849,28 @@ later is required to fix a server side protocol bug.
             project.bare_git,
         )
 
-    cpu_count = os.cpu_count()
+    jobs = opt.jobs
-    jobs = min(self.jobs, cpu_count)
 
+    gc_args = ['--auto']
+    backup_cruft = False
+    if git_require((2, 37, 0)):
+      gc_args.append('--cruft')
+      backup_cruft = True
+    pack_refs_args = ()
     if jobs < 2:
       for (run_gc, bare_git) in tidy_dirs.values():
         pm.update(msg=bare_git._project.name)
+
         if run_gc:
-          bare_git.gc('--auto')
+          bare_git.gc(*gc_args)
         else:
-          bare_git.pack_refs()
+          bare_git.pack_refs(*pack_refs_args)
+        if backup_cruft:
+          self._backup_cruft(bare_git)
       pm.end()
       return
 
+    cpu_count = os.cpu_count()
     config = {'pack.threads': cpu_count // jobs if cpu_count > jobs else 1}
 
     threads = set()
@@ -714,15 +881,17 @@ later is required to fix a server side protocol bug.
       try:
         try:
           if run_gc:
-            bare_git.gc('--auto', config=config)
+            bare_git.gc(*gc_args, config=config)
           else:
-            bare_git.pack_refs(config=config)
+            bare_git.pack_refs(*pack_refs_args, config=config)
         except GitError:
           err_event.set()
         except Exception:
           err_event.set()
           raise
       finally:
+        if backup_cruft:
+          self._backup_cruft(bare_git)
         pm.finish(bare_git._project.name)
         sem.release()
 
@@ -1011,9 +1180,6 @@ later is required to fix a server side protocol bug.
         sys.exit(1)
       self._ReloadManifest(manifest_name, mp.manifest)
 
-      if opt.jobs is None:
-        self.jobs = mp.manifest.default.sync_j
-
   def ValidateOptions(self, opt, args):
     if opt.force_broken:
       print('warning: -f/--force-broken is now the default behavior, and the '
@@ -1036,12 +1202,6 @@ later is required to fix a server side protocol bug.
       opt.prune = True
 
   def Execute(self, opt, args):
-    if opt.jobs:
-      self.jobs = opt.jobs
-    if self.jobs > 1:
-      soft_limit, _ = _rlimit_nofile()
-      self.jobs = min(self.jobs, (soft_limit - 5) // 3)
-
     manifest = self.outer_manifest
     if not opt.outer_manifest:
       manifest = self.manifest
@@ -1079,19 +1239,48 @@ later is required to fix a server side protocol bug.
               file=sys.stderr)
 
     for m in self.ManifestList(opt):
-      mp = m.manifestProject
+      if not m.manifestProject.standalone_manifest_url:
-      is_standalone_manifest = bool(mp.standalone_manifest_url)
+        m.manifestProject.PreSync()
-      if not is_standalone_manifest:
-        mp.PreSync()
 
-      if opt.repo_upgraded:
+    if opt.repo_upgraded:
-        _PostRepoUpgrade(m, quiet=opt.quiet)
+      _PostRepoUpgrade(manifest, quiet=opt.quiet)
 
+    mp = manifest.manifestProject
     if opt.mp_update:
       self._UpdateAllManifestProjects(opt, mp, manifest_name)
     else:
       print('Skipping update of local manifest project.')
 
+    # Now that the manifests are up-to-date, setup the jobs value.
+    if opt.jobs is None:
+      # User has not made a choice, so use the manifest settings.
+      opt.jobs = mp.default.sync_j
+    if opt.jobs is not None:
+      # Neither user nor manifest have made a choice.
+      if opt.jobs_network is None:
+        opt.jobs_network = opt.jobs
+      if opt.jobs_checkout is None:
+        opt.jobs_checkout = opt.jobs
+    # Setup defaults if jobs==0.
+    if not opt.jobs:
+      if not opt.jobs_network:
+        opt.jobs_network = 1
+      if not opt.jobs_checkout:
+        opt.jobs_checkout = DEFAULT_LOCAL_JOBS
+      opt.jobs = os.cpu_count()
+
+    # Try to stay under user rlimit settings.
+    #
+    # Since each worker requires at 3 file descriptors to run `git fetch`, use
+    # that to scale down the number of jobs.  Unfortunately there isn't an easy
+    # way to determine this reliably as systems change, but it was last measured
+    # by hand in 2011.
+    soft_limit, _ = _rlimit_nofile()
+    jobs_soft_limit = max(1, (soft_limit - 5) // 3)
+    opt.jobs = min(opt.jobs, jobs_soft_limit)
+    opt.jobs_network = min(opt.jobs_network, jobs_soft_limit)
+    opt.jobs_checkout = min(opt.jobs_checkout, jobs_soft_limit)
+
     superproject_logging_data = {}
     self._UpdateProjectsRevisionId(opt, args, superproject_logging_data,
                                    manifest)
@@ -1139,6 +1328,7 @@ later is required to fix a server side protocol bug.
 
     err_network_sync = False
     err_update_projects = False
+    err_update_linkfiles = False
 
     self._fetch_times = _FetchTimes(manifest)
     if not opt.local_only:
@@ -1146,8 +1336,9 @@ later is required to fix a server side protocol bug.
         with ssh.ProxyManager(manager) as ssh_proxy:
           # Initialize the socket dir once in the parent.
           ssh_proxy.sock()
-          all_projects = self._FetchMain(opt, args, all_projects, err_event,
+          result = self._FetchMain(opt, args, all_projects, err_event,
-                                         ssh_proxy, manifest)
+                                   ssh_proxy, manifest)
+          all_projects = result.all_projects
 
       if opt.network_only:
         return
@@ -1410,11 +1601,16 @@ class PersistentTransport(xmlrpc.client.Transport):
           raise
 
       p, u = xmlrpc.client.getparser()
-      while 1:
+      # Response should be fairly small, so read it all at once.
-        data = response.read(1024)
+      # This way we can show it to the user in case of error (e.g. HTML).
-        if not data:
+      data = response.read()
-          break
+      try:
         p.feed(data)
+      except xml.parsers.expat.ExpatError as e:
+        raise IOError(
+            f'Parsing the manifest failed: {e}\n'
+            f'Please report this to your manifest server admin.\n'
+            f'Here is the full response:\n{data.decode("utf-8")}')
       p.close()
       return u.close()
 

subcmds/upload.py

@@ -78,6 +78,13 @@ added to the respective list of users, and emails are sent to any
 new users.  Users passed as --reviewers must already be registered
 with the code review system, or the upload will fail.
 
+While most normal Gerrit options have dedicated command line options,
+direct access to the Gerit options is available via --push-options.
+This is useful when Gerrit has newer functionality that %prog doesn't
+yet support, or doesn't have plans to support.  See the Push Options
+documentation for more details:
+https://gerrit-review.googlesource.com/Documentation/user-upload.html#push_options
+
 # Configuration
 
 review.URL.autoupload:
@@ -190,6 +197,9 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
     p.add_option('-w', '--wip',
                  action='store_true', dest='wip', default=False,
                  help='upload as a work-in-progress change')
+    p.add_option('-r', '--ready',
+                 action='store_true', default=False,
+                 help='mark change as ready (clears work-in-progress setting)')
     p.add_option('-o', '--push-option',
                  type='string', action='append', dest='push_options',
                  default=[],
@@ -204,6 +214,12 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
     p.add_option('-y', '--yes',
                  default=False, action='store_true',
                  help='answer yes to all safe prompts')
+    p.add_option('--ignore-untracked-files',
+                 action='store_true', default=False,
+                 help='ignore untracked files in the working copy')
+    p.add_option('--no-ignore-untracked-files',
+                 dest='ignore_untracked_files', action='store_false',
+                 help='always ask about untracked files in the working copy')
     p.add_option('--no-cert-checks',
                  dest='validate_certs', action='store_false', default=True,
                  help='disable verifying ssl certs (unsafe)')
@@ -246,7 +262,7 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
         answer = sys.stdin.readline().strip().lower()
         answer = answer in ('y', 'yes', '1', 'true', 't')
 
-    if answer:
+    if not opt.yes and answer:
       if len(branch.commits) > UNUSUAL_COMMIT_THRESHOLD:
         answer = _ConfirmManyUploads()
 
@@ -319,14 +335,15 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
     if not todo:
       _die("nothing uncommented for upload")
 
-    many_commits = False
+    if not opt.yes:
-    for branch in todo:
+      many_commits = False
-      if len(branch.commits) > UNUSUAL_COMMIT_THRESHOLD:
+      for branch in todo:
-        many_commits = True
+        if len(branch.commits) > UNUSUAL_COMMIT_THRESHOLD:
-        break
+          many_commits = True
-    if many_commits:
+          break
-      if not _ConfirmManyUploads(multiple_branches=True):
+      if many_commits:
-        _die("upload aborted by user")
+        if not _ConfirmManyUploads(multiple_branches=True):
+          _die("upload aborted by user")
 
     self._UploadAndReport(opt, todo, people)
 
@@ -370,6 +387,10 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
 
         # Check if there are local changes that may have been forgotten
         changes = branch.project.UncommitedFiles()
+        if opt.ignore_untracked_files:
+          untracked = set(branch.project.UntrackedFiles())
+          changes = [x for x in changes if x not in untracked]
+
         if changes:
           key = 'review.%s.autoupload' % branch.project.remote.review
           answer = branch.project.config.GetBoolean(key)
@@ -455,6 +476,7 @@ Gerrit Code Review:  https://www.gerritcodereview.com/
                                private=opt.private,
                                notify=notify,
                                wip=opt.wip,
+                               ready=opt.ready,
                                dest_branch=destination,
                                validate_certs=opt.validate_certs,
                                push_options=opt.push_options)

subcmds/version.py

@@ -33,7 +33,7 @@ class Version(Command, MirrorSafeCommand):
 
   def Execute(self, opt, args):
     rp = self.manifest.repoProject
-    rem = rp.GetRemote(rp.remote.name)
+    rem = rp.GetRemote()
     branch = rp.GetBranch('default')
 
     # These might not be the same.  Report them both.

tests/test_git_config.py

@@ -19,6 +19,7 @@ import tempfile
 import unittest
 
 import git_config
+import repo_trace
 
 
 def fixture(*paths):
@@ -33,9 +34,16 @@ class GitConfigReadOnlyTests(unittest.TestCase):
   def setUp(self):
     """Create a GitConfig object using the test.gitconfig fixture.
     """
+
+    self.tempdirobj = tempfile.TemporaryDirectory(prefix='repo_tests')
+    repo_trace._TRACE_FILE = os.path.join(self.tempdirobj.name, 'TRACE_FILE_from_test')
+
     config_fixture = fixture('test.gitconfig')
     self.config = git_config.GitConfig(config_fixture)
 
+  def tearDown(self):
+    self.tempdirobj.cleanup()
+
   def test_GetString_with_empty_config_values(self):
     """
     Test config entries with no value.
@@ -109,9 +117,15 @@ class GitConfigReadWriteTests(unittest.TestCase):
   """Read/write tests of the GitConfig class."""
 
   def setUp(self):
+    self.tempdirobj = tempfile.TemporaryDirectory(prefix='repo_tests')
+    repo_trace._TRACE_FILE = os.path.join(self.tempdirobj.name, 'TRACE_FILE_from_test')
+
     self.tmpfile = tempfile.NamedTemporaryFile()
     self.config = self.get_config()
 
+  def tearDown(self):
+    self.tempdirobj.cleanup()
+
   def get_config(self):
     """Get a new GitConfig instance."""
     return git_config.GitConfig(self.tmpfile.name)

tests/test_git_superproject.py

@@ -24,6 +24,7 @@ from unittest import mock
 import git_superproject
 import git_trace2_event_log
 import manifest_xml
+import repo_trace
 from test_manifest_xml import sort_attributes
 
 
@@ -39,6 +40,7 @@ class SuperprojectTestCase(unittest.TestCase):
     """Set up superproject every time."""
     self.tempdirobj = tempfile.TemporaryDirectory(prefix='repo_tests')
     self.tempdir = self.tempdirobj.name
+    repo_trace._TRACE_FILE = os.path.join(self.tempdir, 'TRACE_FILE_from_test')
     self.repodir = os.path.join(self.tempdir, '.repo')
     self.manifest_file = os.path.join(
         self.repodir, manifest_xml.MANIFEST_FILE_NAME)
@@ -312,9 +314,6 @@ class SuperprojectTestCase(unittest.TestCase):
               '<project groups="notdefault,platform-' + self.platform + '" '
               'name="platform/art" path="art" '
               'revision="2c2724cb36cd5a9cec6c852c681efc3b7c6b86ea" upstream="refs/heads/main"/>'
-              '<project clone-depth="1" groups="' + local_group + '" '
-              'name="platform/vendor/x" path="vendor/x" remote="goog" '
-              'revision="master-with-vendor"/>'
               '<superproject name="superproject"/>'
               '</manifest>')
 

tests/test_manifest_xml.py

@@ -23,6 +23,7 @@ import xml.dom.minidom
 
 import error
 import manifest_xml
+import repo_trace
 
 
 # Invalid paths that we don't want in the filesystem.
@@ -93,6 +94,7 @@ class ManifestParseTestCase(unittest.TestCase):
   def setUp(self):
     self.tempdirobj = tempfile.TemporaryDirectory(prefix='repo_tests')
     self.tempdir = self.tempdirobj.name
+    repo_trace._TRACE_FILE = os.path.join(self.tempdir, 'TRACE_FILE_from_test')
     self.repodir = os.path.join(self.tempdir, '.repo')
     self.manifest_dir = os.path.join(self.repodir, 'manifests')
     self.manifest_file = os.path.join(
@@ -252,6 +254,37 @@ class XmlManifestTests(ManifestParseTestCase):
         '<manifest></manifest>')
     self.assertEqual(manifest.ToDict(), {})
 
+  def test_toxml_omit_local(self):
+    """Does not include local_manifests projects when omit_local=True."""
+    manifest = self.getXmlManifest(
+        '<?xml version="1.0" encoding="UTF-8"?><manifest>'
+        '<remote name="a" fetch=".."/><default remote="a" revision="r"/>'
+        '<project name="p" groups="local::me"/>'
+        '<project name="q"/>'
+        '<project name="r" groups="keep"/>'
+        '</manifest>')
+    self.assertEqual(
+        sort_attributes(manifest.ToXml(omit_local=True).toxml()),
+        '<?xml version="1.0" ?><manifest>'
+        '<remote fetch=".." name="a"/><default remote="a" revision="r"/>'
+        '<project name="q"/><project groups="keep" name="r"/></manifest>')
+
+  def test_toxml_with_local(self):
+    """Does include local_manifests projects when omit_local=False."""
+    manifest = self.getXmlManifest(
+        '<?xml version="1.0" encoding="UTF-8"?><manifest>'
+        '<remote name="a" fetch=".."/><default remote="a" revision="r"/>'
+        '<project name="p" groups="local::me"/>'
+        '<project name="q"/>'
+        '<project name="r" groups="keep"/>'
+        '</manifest>')
+    self.assertEqual(
+        sort_attributes(manifest.ToXml(omit_local=False).toxml()),
+        '<?xml version="1.0" ?><manifest>'
+        '<remote fetch=".." name="a"/><default remote="a" revision="r"/>'
+        '<project groups="local::me" name="p"/>'
+        '<project name="q"/><project groups="keep" name="r"/></manifest>')
+
   def test_repo_hooks(self):
     """Check repo-hooks settings."""
     manifest = self.getXmlManifest("""
@@ -843,3 +876,27 @@ class ExtendProjectElementTests(ManifestParseTestCase):
     else:
       self.assertEqual(manifest.projects[0].relpath, 'bar')
       self.assertEqual(manifest.projects[1].relpath, 'y')
+
+  def test_extend_project_dest_branch(self):
+    manifest = self.getXmlManifest("""
+<manifest>
+  <remote name="default-remote" fetch="http://localhost" />
+  <default remote="default-remote" revision="refs/heads/main" dest-branch="foo" />
+  <project name="myproject" />
+  <extend-project name="myproject" dest-branch="bar" />
+</manifest>
+""")
+    self.assertEqual(len(manifest.projects), 1)
+    self.assertEqual(manifest.projects[0].dest_branch, 'bar')
+
+  def test_extend_project_upstream(self):
+    manifest = self.getXmlManifest("""
+<manifest>
+  <remote name="default-remote" fetch="http://localhost" />
+  <default remote="default-remote" revision="refs/heads/main" />
+  <project name="myproject" />
+  <extend-project name="myproject" upstream="bar" />
+</manifest>
+""")
+    self.assertEqual(len(manifest.projects), 1)
+    self.assertEqual(manifest.projects[0].upstream, 'bar')

tests/test_project.py

@@ -26,6 +26,7 @@ import git_command
 import git_config
 import platform_utils
 import project
+import repo_trace
 
 
 @contextlib.contextmanager
@@ -64,6 +65,13 @@ class FakeProject(object):
 class ReviewableBranchTests(unittest.TestCase):
   """Check ReviewableBranch behavior."""
 
+  def setUp(self):
+    self.tempdirobj = tempfile.TemporaryDirectory(prefix='repo_tests')
+    repo_trace._TRACE_FILE = os.path.join(self.tempdirobj.name, 'TRACE_FILE_from_test')
+
+  def tearDown(self):
+    self.tempdirobj.cleanup()
+
   def test_smoke(self):
     """A quick run through everything."""
     with TempGitTree() as tempdir:

tests/test_subcmds_sync.py

@@ -11,9 +11,9 @@
 # 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.
-
 """Unittests for the subcmds/sync.py module."""
 
+import unittest
 from unittest import mock
 
 import pytest
@@ -21,17 +21,14 @@ import pytest
 from subcmds import sync
 
 
-@pytest.mark.parametrize(
+@pytest.mark.parametrize('use_superproject, cli_args, result', [
-  'use_superproject, cli_args, result',
-  [
     (True, ['--current-branch'], True),
     (True, ['--no-current-branch'], True),
     (True, [], True),
     (False, ['--current-branch'], True),
     (False, ['--no-current-branch'], False),
     (False, [], None),
-  ]
+])
-)
 def test_get_current_branch_only(use_superproject, cli_args, result):
   """Test Sync._GetCurrentBranchOnly logic.
 
@@ -41,5 +38,49 @@ def test_get_current_branch_only(use_superproject, cli_args, result):
   cmd = sync.Sync()
   opts, _ = cmd.OptionParser.parse_args(cli_args)
 
-  with mock.patch('git_superproject.UseSuperproject', return_value=use_superproject):
+  with mock.patch('git_superproject.UseSuperproject',
+                  return_value=use_superproject):
     assert cmd._GetCurrentBranchOnly(opts, cmd.manifest) == result
+
+
+class GetPreciousObjectsState(unittest.TestCase):
+  """Tests for _GetPreciousObjectsState."""
+
+  def setUp(self):
+    """Common setup."""
+    self.cmd = sync.Sync()
+    self.project = p = mock.MagicMock(use_git_worktrees=False,
+                                      UseAlternates=False)
+    p.manifest.GetProjectsWithName.return_value = [p]
+
+    self.opt = mock.Mock(spec_set=['this_manifest_only'])
+    self.opt.this_manifest_only = False
+
+  def test_worktrees(self):
+    """False for worktrees."""
+    self.project.use_git_worktrees = True
+    self.assertFalse(self.cmd._GetPreciousObjectsState(self.project, self.opt))
+
+  def test_not_shared(self):
+    """Singleton project."""
+    self.assertFalse(self.cmd._GetPreciousObjectsState(self.project, self.opt))
+
+  def test_shared(self):
+    """Shared project."""
+    self.project.manifest.GetProjectsWithName.return_value = [
+        self.project, self.project
+    ]
+    self.assertTrue(self.cmd._GetPreciousObjectsState(self.project, self.opt))
+
+  def test_shared_with_alternates(self):
+    """Shared project, with alternates."""
+    self.project.manifest.GetProjectsWithName.return_value = [
+        self.project, self.project
+    ]
+    self.project.UseAlternates = True
+    self.assertFalse(self.cmd._GetPreciousObjectsState(self.project, self.opt))
+
+  def test_not_found(self):
+    """Project not found in manifest."""
+    self.project.manifest.GetProjectsWithName.return_value = []
+    self.assertFalse(self.cmd._GetPreciousObjectsState(self.project, self.opt))