19 files changed, 417 insertions, 213 deletions

diff --git a/.gitattributes b/.gitattributes
index d65028a4..cdd8546d 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,4 +1,4 @@
 # Prevent /bin/sh scripts from being clobbered by autocrlf=true
 git_ssh text eol=lf
-main.py text eol=lf
 repo text eol=lf
+hooks/* text eol=lf
diff --git a/.mailmap b/.mailmap
new file mode 100644
index 00000000..eb64bd21
--- /dev/null
+++ b/.mailmap
@@ -0,0 +1,11 @@
+Anthony Newnam <anthony.newnam@garmin.com>    Anthony <anthony@bnovc.com>
+Hu Xiuyun <xiuyun.hu@hisilicon.com>           Hu xiuyun <xiuyun.hu@hisilicon.com>
+Hu Xiuyun <xiuyun.hu@hisilicon.com>           Hu Xiuyun <clouds08@qq.com>
+Jelly Chen <chenguodong@huawei.com>           chenguodong <chenguodong@huawei.com>
+Jia Bi <bijia@xiaomi.com>                     bijia <bijia@xiaomi.com>
+JoonCheol Park <jooncheol@gmail.com>          Jooncheol Park <jooncheol@gmail.com>
+Sergii Pylypenko <x.pelya.x@gmail.com>        pelya <x.pelya.x@gmail.com>
+Shawn Pearce <sop@google.com>                 Shawn O. Pearce <sop@google.com>
+Ulrik Sjölin <ulrik.sjolin@sonyericsson.com>  Ulrik Sjolin <ulrik.sjolin@gmail.com>
+Ulrik Sjölin <ulrik.sjolin@sonyericsson.com>  Ulrik Sjolin <ulrik.sjolin@sonyericsson.com>
+Ulrik Sjölin <ulrik.sjolin@sonyericsson.com>  Ulrik Sjölin <ulrik.sjolin@sonyericsson.com>
diff --git a/.pylintrc b/.pylintrc
index c6be7436..413d66a1 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -53,7 +53,7 @@ load-plugins=
 enable=RP0004
 
 # Disable the message(s) with the given id(s).
-disable=R0903,R0912,R0913,R0914,R0915,W0141,C0111,C0103,W0603,W0703,R0911,C0301,C0302,R0902,R0904,W0142,W0212,E1101,E1103,R0201,W0201,W0122,W0232,RP0001,RP0003,RP0101,RP0002,RP0401,RP0701,RP0801,F0401,E0611,R0801,I0011
+disable=C0326,R0903,R0912,R0913,R0914,R0915,W0141,C0111,C0103,W0603,W0703,R0911,C0301,C0302,R0902,R0904,W0142,W0212,E1101,E1103,R0201,W0201,W0122,W0232,RP0001,RP0003,RP0101,RP0002,RP0401,RP0701,RP0801,F0401,E0611,R0801,I0011
 
 [REPORTS]
 
diff --git a/README.md b/README.md
new file mode 100644
index 00000000..e35f8e99
--- /dev/null
+++ b/README.md
@@ -0,0 +1,14 @@
+# repo
+
+Repo is a tool built on top of Git.  Repo helps manage many Git repositories,
+does the uploads to revision control systems, and automates parts of the
+development workflow.  Repo is not meant to replace Git, only to make it
+easier to work with Git.  The repo command is an executable Python script
+that you can put anywhere in your path.
+
+* Homepage: https://code.google.com/p/git-repo/
+* Bug reports: https://code.google.com/p/git-repo/issues/
+* Source: https://code.google.com/p/git-repo/
+* Overview: https://source.android.com/source/developing.html
+* Docs: https://source.android.com/source/using-repo.html
+* [Submitting patches](./SUBMITTING_PATCHES.md)
diff --git a/SUBMITTING_PATCHES b/SUBMITTING_PATCHES.md
index 8656ee7d..085ae06a 100644
--- a/SUBMITTING_PATCHES
+++ b/SUBMITTING_PATCHES.md
@@ -1,4 +1,4 @@
-Short Version:
+# Short Version
 
  - Make small logical changes.
  - Provide a meaningful commit message.
@@ -8,10 +8,10 @@ Short Version:
  - Make corrections if requested.
  - Verify your changes on gerrit so they can be submitted.
 
-   git push https://gerrit-review.googlesource.com/git-repo HEAD:refs/for/master
+   `git push https://gerrit-review.googlesource.com/git-repo HEAD:refs/for/master`
 
 
-Long Version:
+# Long Version
 
 I wanted a file describing how to submit patches for repo,
 so I started with the one found in the core Git distribution
@@ -19,10 +19,10 @@ so I started with the one found in the core Git distribution
 patch submission guidelines for the Linux kernel.
 
 However there are some differences, so please review and familiarize
-yourself with the following relevant bits:
+yourself with the following relevant bits.
 
 
-(1) Make separate commits for logically separate changes.
+## Make separate commits for logically separate changes.
 
 Unless your patch is really trivial, you should not be sending
 out a patch that was generated between your working tree and your
@@ -36,14 +36,14 @@ If your description starts to get too long, that's a sign that you
 probably need to split up your commit to finer grained pieces.
 
 
-(2) Check for coding errors with pylint
+## Check for coding errors with pylint
 
 Run pylint on changed modules using the provided configuration:
 
-  pylint --rcfile=.pylintrc file.py
+    pylint --rcfile=.pylintrc file.py
 
 
-(3) Check the license
+## Check the license
 
 repo is licensed under the Apache License, 2.0.
 
@@ -59,7 +59,7 @@ your patch.  It is virtually impossible to remove a patch once it
 has been applied and pushed out.
 
 
-(4) Sending your patches.
+## Sending your patches.
 
 Do not email your patches to anyone.
 
@@ -91,23 +91,23 @@ to get the ChangeId added.
 Push your patches over HTTPS to the review server, possibly through
 a remembered remote to make this easier in the future:
 
-   git config remote.review.url https://gerrit-review.googlesource.com/git-repo
-   git config remote.review.push HEAD:refs/for/master
+    git config remote.review.url https://gerrit-review.googlesource.com/git-repo
+    git config remote.review.push HEAD:refs/for/master
 
-   git push review
+    git push review
 
 You will be automatically emailed a copy of your commits, and any
 comments made by the project maintainers.
 
 
-(5) Make changes if requested
+## Make changes if requested
 
 The project maintainer who reviews your changes might request changes to your
 commit. If you make the requested changes you will need to amend your commit
 and push it to the review server again.
 
 
-(6) Verify your changes on gerrit
+## Verify your changes on gerrit
 
 After you receive a Code-Review+2 from the maintainer, select the Verified
 button on the gerrit page for the change. This verifies that you have tested
diff --git a/command.py b/command.py
index cd5e3c3e..2ff0a344 100644
--- a/command.py
+++ b/command.py
@@ -31,7 +31,7 @@ class Command(object):
   manifest = None
   _optparse = None
 
-  def WantPager(self, opt):
+  def WantPager(self, _opt):
     return False
 
   def ReadEnvironmentOptions(self, opts):
@@ -63,7 +63,7 @@ class Command(object):
         usage = self.helpUsage.strip().replace('%prog', me)
       except AttributeError:
         usage = 'repo %s' % self.NAME
-      self._optparse = optparse.OptionParser(usage = usage)
+      self._optparse = optparse.OptionParser(usage=usage)
       self._Options(self._optparse)
     return self._optparse
 
@@ -110,15 +110,20 @@ class Command(object):
     project = None
     if os.path.exists(path):
       oldpath = None
-      while path \
-        and path != oldpath \
-        and path != manifest.topdir:
+      while path and \
+            path != oldpath and \
+            path != manifest.topdir:
         try:
           project = self._by_path[path]
           break
         except KeyError:
           oldpath = path
           path = os.path.dirname(path)
+      if not project and path == manifest.topdir:
+        try:
+          project = self._by_path[path]
+        except KeyError:
+          pass
     else:
       try:
         project = self._by_path[path]
@@ -138,7 +143,7 @@ class Command(object):
     mp = manifest.manifestProject
 
     if not groups:
-        groups = mp.config.GetString('manifest.groups')
+      groups = mp.config.GetString('manifest.groups')
     if not groups:
       groups = 'default,platform-' + platform.system().lower()
     groups = [x for x in re.split(r'[,\s]+', groups) if x]
@@ -151,8 +156,7 @@ class Command(object):
                                   for p in project.GetDerivedSubprojects())
       all_projects_list.extend(derived_projects.values())
       for project in all_projects_list:
-        if ((missing_ok or project.Exists) and
-            project.MatchesGroups(groups)):
+        if (missing_ok or project.Exists) and project.MatchesGroups(groups):
           result.append(project)
     else:
       self._ResetPathToProjectMap(all_projects_list)
@@ -166,8 +170,8 @@ class Command(object):
 
           # If it's not a derived project, update path->project mapping and
           # search again, as arg might actually point to a derived subproject.
-          if (project and not project.Derived and
-              (submodules_ok or project.sync_s)):
+          if (project and not project.Derived and (submodules_ok or
+                                                   project.sync_s)):
             search_again = False
             for subproject in project.GetDerivedSubprojects():
               self._UpdatePathToProjectMap(subproject)
@@ -194,17 +198,24 @@ class Command(object):
     result.sort(key=_getpath)
     return result
 
-  def FindProjects(self, args):
+  def FindProjects(self, args, inverse=False):
     result = []
     patterns = [re.compile(r'%s' % a, re.IGNORECASE) for a in args]
     for project in self.GetProjects(''):
       for pattern in patterns:
-        if pattern.search(project.name) or pattern.search(project.relpath):
+        match = pattern.search(project.name) or pattern.search(project.relpath)
+        if not inverse and match:
           result.append(project)
           break
+        if inverse and match:
+          break
+      else:
+        if inverse:
+          result.append(project)
     result.sort(key=lambda project: project.relpath)
     return result
 
+
 # pylint: disable=W0223
 # Pylint warns that the `InteractiveCommand` and `PagedCommand` classes do not
 # override method `Execute` which is abstract in `Command`.  Since that method
@@ -214,28 +225,32 @@ class InteractiveCommand(Command):
   """Command which requires user interaction on the tty and
      must not run within a pager, even if the user asks to.
   """
-  def WantPager(self, opt):
+  def WantPager(self, _opt):
     return False
 
+
 class PagedCommand(Command):
   """Command which defaults to output in a pager, as its
      display tends to be larger than one screen full.
   """
-  def WantPager(self, opt):
+  def WantPager(self, _opt):
     return True
 
 # pylint: enable=W0223
 
+
 class MirrorSafeCommand(object):
   """Command permits itself to run within a mirror,
      and does not require a working directory.
   """
 
+
 class GitcAvailableCommand(object):
   """Command that requires GITC to be available, but does
      not require the local client to be a GITC client.
   """
 
+
 class GitcClientCommand(object):
   """Command that requires the local client to be a GITC
      client.
diff --git a/docs/manifest-format.txt b/docs/manifest-format.txt
index 140a782f..8fd9137c 100644
--- a/docs/manifest-format.txt
+++ b/docs/manifest-format.txt
@@ -175,7 +175,8 @@ The manifest server should implement the following RPC methods:
   GetApprovedManifest(branch, target)
 
 Return a manifest in which each project is pegged to a known good revision
-for the current branch and target.
+for the current branch and target. This is used by repo sync when the
+--smart-sync option is given.
 
 The target to use is defined by environment variables TARGET_PRODUCT
 and TARGET_BUILD_VARIANT. These variables are used to create a string
@@ -187,7 +188,8 @@ should choose a reasonable default target.
   GetManifest(tag)
 
 Return a manifest in which each project is pegged to the revision at
-the specified tag.
+the specified tag. This is used by repo sync when the --smart-tag option
+is given.
 
 
 Element project
diff --git a/gitc_utils.py b/gitc_utils.py
index 0f3e1818..0d4a5c38 100644
--- a/gitc_utils.py
+++ b/gitc_utils.py
@@ -24,7 +24,9 @@ import git_command
 import git_config
 import wrapper
 
-NUM_BATCH_RETRIEVE_REVISIONID = 300
+from error import ManifestParseError
+
+NUM_BATCH_RETRIEVE_REVISIONID = 32
 
 def get_gitc_manifest_dir():
   return wrapper.Wrapper().get_gitc_manifest_dir()
@@ -54,7 +56,11 @@ def _set_project_revisions(projects):
     if gitcmd.Wait():
       print('FATAL: Failed to retrieve revisionExpr for %s' % proj)
       sys.exit(1)
-    proj.revisionExpr = gitcmd.stdout.split('\t')[0]
+    revisionExpr = gitcmd.stdout.split('\t')[0]
+    if not revisionExpr:
+      raise(ManifestParseError('Invalid SHA-1 revision project %s (%s)' %
+                               (proj.remote.url, proj.revisionExpr)))
+    proj.revisionExpr = revisionExpr
 
 def _manifest_groups(manifest):
   """Returns the manifest group string that should be synced
@@ -127,7 +133,7 @@ def generate_gitc_manifest(gitc_manifest, manifest, paths=None):
         repo_proj.revisionExpr = None
 
   # Convert URLs from relative to absolute.
-  for name, remote in manifest.remotes.iteritems():
+  for _name, remote in manifest.remotes.iteritems():
     remote.fetchUrl = remote.resolvedFetchUrl
 
   # Save the manifest.
diff --git a/hooks/commit-msg b/hooks/commit-msg
index d8f009b6..40ac237a 100755
--- a/hooks/commit-msg
+++ b/hooks/commit-msg
@@ -1,6 +1,7 @@
 #!/bin/sh
+# From Gerrit Code Review 2.12.1
 #
-# Part of Gerrit Code Review (http://code.google.com/p/gerrit/)
+# Part of Gerrit Code Review (https://www.gerritcodereview.com/)
 #
 # Copyright (C) 2009 The Android Open Source Project
 #
@@ -19,7 +20,7 @@
 
 unset GREP_OPTIONS
 
-CHANGE_ID_AFTER="Bug|Issue"
+CHANGE_ID_AFTER="Bug|Issue|Test"
 MSG="$1"
 
 # Check for, and add if missing, a unique Change-Id
@@ -38,6 +39,12 @@ add_ChangeId() {
                 return
         fi
 
+        # Do not add Change-Id to temp commits
+        if echo "$clean_message" | head -1 | grep -q '^\(fixup\|squash\)!'
+        then
+                return
+        fi
+
         if test "false" = "`git config --bool --get gerrit.createChangeId`"
         then
                 return
@@ -57,6 +64,10 @@ add_ChangeId() {
                 AWK=/usr/xpg4/bin/awk
         fi
 
+        # Get core.commentChar from git config or use default symbol
+        commentChar=`git config --get core.commentChar`
+        commentChar=${commentChar:-#}
+
         # How this works:
         # - parse the commit message as (textLine+ blankLine*)*
         # - assume textLine+ to be a footer until proven otherwise
@@ -75,8 +86,8 @@ add_ChangeId() {
                 blankLines = 0
         }
 
-        # Skip lines starting with "#" without any spaces before it.
-        /^#/ { next }
+        # Skip lines starting with commentChar without any spaces before it.
+        /^'"$commentChar"'/ { next }
 
         # Skip the line starting with the diff command and everything after it,
         # up to the end of the file, assuming it is only patch data.
diff --git a/main.py b/main.py
index 4f4eb9fc..c5f1e9c3 100755
--- a/main.py
+++ b/main.py
@@ -379,7 +379,7 @@ class _KerberosAuthHandler(urllib.request.BaseHandler):
     self.context = None
     self.handler_order = urllib.request.BaseHandler.handler_order - 50
 
-  def http_error_401(self, req, fp, code, msg, headers):
+  def http_error_401(self, req, fp, code, msg, headers): # pylint:disable=unused-argument
     host = req.get_host()
     retry = self.http_error_auth_reqed('www-authenticate', host, req, headers)
     return retry
diff --git a/manifest_xml.py b/manifest_xml.py
index 3ac607ec..295493de 100644
--- a/manifest_xml.py
+++ b/manifest_xml.py
@@ -102,7 +102,10 @@ class _XmlRemote(object):
     remoteName = self.name
     if self.remoteAlias:
       remoteName = self.remoteAlias
-    return RemoteSpec(remoteName, url, self.reviewUrl)
+    return RemoteSpec(remoteName,
+                      url=url,
+                      review=self.reviewUrl,
+                      orig_name=self.name)
 
 class XmlManifest(object):
   """manages the repo configuration file"""
@@ -249,9 +252,9 @@ class XmlManifest(object):
         e.setAttribute('path', relpath)
       remoteName = None
       if d.remote:
-        remoteName = d.remote.remoteAlias or d.remote.name
-      if not d.remote or p.remote.name != remoteName:
-        remoteName = p.remote.name
+        remoteName = d.remote.name
+      if not d.remote or p.remote.orig_name != remoteName:
+        remoteName = p.remote.orig_name
         e.setAttribute('remote', remoteName)
       if peg_rev:
         if self.IsMirror:
@@ -267,7 +270,7 @@ class XmlManifest(object):
             # isn't our value
             e.setAttribute('upstream', p.revisionExpr)
       else:
-        revision = self.remotes[remoteName].revision or d.revisionExpr
+        revision = self.remotes[p.remote.orig_name].revision or d.revisionExpr
         if not revision or revision != p.revisionExpr:
           e.setAttribute('revision', p.revisionExpr)
         if p.upstream and p.upstream != p.revisionExpr:
@@ -969,5 +972,5 @@ class GitcManifest(XmlManifest):
   def _output_manifest_project_extras(self, p, e):
     """Output GITC Specific Project attributes"""
     if p.old_revision:
-        e.setAttribute('old-revision', str(p.old_revision))
+      e.setAttribute('old-revision', str(p.old_revision))
 
diff --git a/project.py b/project.py
index fa4e7cea..0a86a718 100644
--- a/project.py
+++ b/project.py
@@ -30,7 +30,8 @@ import traceback
 
 from color import Coloring
 from git_command import GitCommand, git_require
-from git_config import GitConfig, IsId, GetSchemeFromUrl, GetUrlCookieFile, ID_RE
+from git_config import GitConfig, IsId, GetSchemeFromUrl, GetUrlCookieFile, \
+    ID_RE
 from error import GitError, HookError, UploadError, DownloadError
 from error import ManifestInvalidRevisionError
 from error import NoManifestException
@@ -39,11 +40,18 @@ from trace import IsTrace, Trace
 from git_refs import GitRefs, HEAD, R_HEADS, R_TAGS, R_PUB, R_M
 
 from pyversion import is_python3
-if not is_python3():
+if is_python3():
+  import urllib.parse
+else:
+  import imp
+  import urlparse
+  urllib = imp.new_module('urllib')
+  urllib.parse = urlparse
   # pylint:disable=W0622
   input = raw_input
   # pylint:enable=W0622
 
+
 def _lwrite(path, content):
   lock = '%s.lock' % path
 
@@ -59,21 +67,27 @@ def _lwrite(path, content):
     os.remove(lock)
     raise
 
+
 def _error(fmt, *args):
   msg = fmt % args
   print('error: %s' % msg, file=sys.stderr)
 
+
 def _warn(fmt, *args):
   msg = fmt % args
   print('warn: %s' % msg, file=sys.stderr)
 
+
 def not_rev(r):
   return '^' + r
 
+
 def sq(r):
   return "'" + r.replace("'", "'\''") + "'"
 
 _project_hook_list = None
+
+
 def _ProjectHooks():
   """List the hooks present in the 'hooks' directory.
 
@@ -107,15 +121,14 @@ class DownloadedChange(object):
   @property
   def commits(self):
     if self._commit_cache is None:
-      self._commit_cache = self.project.bare_git.rev_list(
-        '--abbrev=8',
-        '--abbrev-commit',
-        '--pretty=oneline',
-        '--reverse',
-        '--date-order',
-        not_rev(self.base),
-        self.commit,
-        '--')
+      self._commit_cache = self.project.bare_git.rev_list('--abbrev=8',
+                                                          '--abbrev-commit',
+                                                          '--pretty=oneline',
+                                                          '--reverse',
+                                                          '--date-order',
+                                                          not_rev(self.base),
+                                                          self.commit,
+                                                          '--')
     return self._commit_cache
 
 
@@ -134,36 +147,36 @@ class ReviewableBranch(object):
   @property
   def commits(self):
     if self._commit_cache is None:
-      self._commit_cache = self.project.bare_git.rev_list(
-        '--abbrev=8',
-        '--abbrev-commit',
-        '--pretty=oneline',
-        '--reverse',
-        '--date-order',
-        not_rev(self.base),
-        R_HEADS + self.name,
-        '--')
+      self._commit_cache = self.project.bare_git.rev_list('--abbrev=8',
+                                                          '--abbrev-commit',
+                                                          '--pretty=oneline',
+                                                          '--reverse',
+                                                          '--date-order',
+                                                          not_rev(self.base),
+                                                          R_HEADS + self.name,
+                                                          '--')
     return self._commit_cache
 
   @property
   def unabbrev_commits(self):
     r = dict()
-    for commit in self.project.bare_git.rev_list(
-        not_rev(self.base),
-        R_HEADS + self.name,
-        '--'):
+    for commit in self.project.bare_git.rev_list(not_rev(self.base),
+                                                 R_HEADS + self.name,
+                                                 '--'):
       r[commit[0:8]] = commit
     return r
 
   @property
   def date(self):
-    return self.project.bare_git.log(
-      '--pretty=format:%cd',
-      '-n', '1',
-      R_HEADS + self.name,
-      '--')
+    return self.project.bare_git.log('--pretty=format:%cd',
+                                     '-n', '1',
+                                     R_HEADS + self.name,
+                                     '--')
 
-  def UploadForReview(self, people, auto_topic=False, draft=False, dest_branch=None):
+  def UploadForReview(self, people,
+                      auto_topic=False,
+                      draft=False,
+                      dest_branch=None):
     self.project.UploadForReview(self.name,
                                  people,
                                  auto_topic=auto_topic,
@@ -173,8 +186,8 @@ class ReviewableBranch(object):
   def GetPublishedRefs(self):
     refs = {}
     output = self.project.bare_git.ls_remote(
-      self.branch.remote.SshReviewUrl(self.project.UserEmail),
-      'refs/changes/*')
+        self.branch.remote.SshReviewUrl(self.project.UserEmail),
+        'refs/changes/*')
     for line in output.split('\n'):
       try:
         (sha, ref) = line.split()
@@ -184,7 +197,9 @@ class ReviewableBranch(object):
 
     return refs
 
+
 class StatusColoring(Coloring):
+
   def __init__(self, config):
     Coloring.__init__(self, config, 'status')
     self.project = self.printer('header', attr='bold')
@@ -198,17 +213,22 @@ class StatusColoring(Coloring):
 
 
 class DiffColoring(Coloring):
+
   def __init__(self, config):
     Coloring.__init__(self, config, 'diff')
     self.project = self.printer('header', attr='bold')
 
+
 class _Annotation(object):
+
   def __init__(self, name, value, keep):
     self.name = name
     self.value = value
     self.keep = keep
 
+
 class _CopyFile(object):
+
   def __init__(self, src, dest, abssrc, absdest):
     self.src = src
     self.dest = dest
@@ -236,7 +256,9 @@ class _CopyFile(object):
       except IOError:
         _error('Cannot copy file %s to %s', src, dest)
 
+
 class _LinkFile(object):
+
   def __init__(self, git_worktree, src, dest, relsrc, absdest):
     self.git_worktree = git_worktree
     self.src = src
@@ -275,7 +297,7 @@ class _LinkFile(object):
       absDestDir = self.abs_dest
       if os.path.exists(absDestDir) and not os.path.isdir(absDestDir):
         _error('Link error: src with wildcard, %s must be a directory',
-            absDestDir)
+               absDestDir)
       else:
         absSrcFiles = glob.glob(absSrc)
         for absSrcFile in absSrcFiles:
@@ -292,18 +314,24 @@ class _LinkFile(object):
           relSrc = os.path.join(relSrcDir, srcFile)
           self.__linkIt(relSrc, absDest)
 
+
 class RemoteSpec(object):
+
   def __init__(self,
                name,
                url=None,
                review=None,
-               revision=None):
+               revision=None,
+               orig_name=None):
     self.name = name
     self.url = url
     self.review = review
     self.revision = revision
+    self.orig_name = orig_name
+
 
 class RepoHook(object):
+
   """A RepoHook contains information about a script to run as a hook.
 
   Hooks are used to run a python script before running an upload (for instance,
@@ -316,10 +344,12 @@ class RepoHook(object):
   Hooks are always python.  When a hook is run, we will load the hook into the
   interpreter and execute its main() function.
   """
+
   def __init__(self,
                hook_type,
                hooks_project,
                topdir,
+               manifest_url,
                abort_if_user_denies=False):
     """RepoHook constructor.
 
@@ -333,11 +363,13 @@ class RepoHook(object):
       topdir: Repo's top directory (the one containing the .repo directory).
           Scripts will run with CWD as this directory.  If you have a manifest,
           this is manifest.topdir
+      manifest_url: The URL to the manifest git repo.
       abort_if_user_denies: If True, we'll throw a HookError() if the user
           doesn't allow us to run the hook.
     """
     self._hook_type = hook_type
     self._hooks_project = hooks_project
+    self._manifest_url = manifest_url
     self._topdir = topdir
     self._abort_if_user_denies = abort_if_user_denies
 
@@ -386,9 +418,9 @@ class RepoHook(object):
   def _CheckForHookApproval(self):
     """Check to see whether this hook has been approved.
 
-    We'll look at the hash of all of the hooks.  If this matches the hash that
-    the user last approved, we're done.  If it doesn't, we'll ask the user
-    about approval.
+    We'll accept approval of manifest URLs if they're using secure transports.
+    This way the user can say they trust the manifest hoster.  For insecure
+    hosts, we fall back to checking the hash of the hooks repo.
 
     Note that we ask permission for each individual hook even though we use
     the hash of all hooks when detecting changes.  We'd like the user to be
@@ -402,44 +434,58 @@ class RepoHook(object):
       HookError: Raised if the user doesn't approve and abort_if_user_denies
           was passed to the consturctor.
     """
-    hooks_config = self._hooks_project.config
-    git_approval_key = 'repo.hooks.%s.approvedhash' % self._hook_type
+    if self._ManifestUrlHasSecureScheme():
+      return self._CheckForHookApprovalManifest()
+    else:
+      return self._CheckForHookApprovalHash()
+
+  def _CheckForHookApprovalHelper(self, subkey, new_val, main_prompt,
+                                  changed_prompt):
+    """Check for approval for a particular attribute and hook.
 
-    # Get the last hash that the user approved for this hook; may be None.
-    old_hash = hooks_config.GetString(git_approval_key)
+    Args:
+      subkey: The git config key under [repo.hooks.<hook_type>] to store the
+          last approved string.
+      new_val: The new value to compare against the last approved one.
+      main_prompt: Message to display to the user to ask for approval.
+      changed_prompt: Message explaining why we're re-asking for approval.
 
-    # Get the current hash so we can tell if scripts changed since approval.
-    new_hash = self._GetHash()
+    Returns:
+      True if this hook is approved to run; False otherwise.
 
-    if old_hash is not None:
+    Raises:
+      HookError: Raised if the user doesn't approve and abort_if_user_denies
+          was passed to the consturctor.
+    """
+    hooks_config = self._hooks_project.config
+    git_approval_key = 'repo.hooks.%s.%s' % (self._hook_type, subkey)
+
+    # Get the last value that the user approved for this hook; may be None.
+    old_val = hooks_config.GetString(git_approval_key)
+
+    if old_val is not None:
       # User previously approved hook and asked not to be prompted again.
-      if new_hash == old_hash:
+      if new_val == old_val:
         # Approval matched.  We're done.
         return True
       else:
         # Give the user a reason why we're prompting, since they last told
         # us to "never ask again".
-        prompt = 'WARNING: Scripts have changed since %s was allowed.\n\n' % (
-            self._hook_type)
+        prompt = 'WARNING: %s\n\n' % (changed_prompt,)
     else:
       prompt = ''
 
     # Prompt the user if we're not on a tty; on a tty we'll assume "no".
     if sys.stdout.isatty():
-      prompt += ('Repo %s run the script:\n'
-                 '  %s\n'
-                 '\n'
-                 'Do you want to allow this script to run '
-                 '(yes/yes-never-ask-again/NO)? ') % (
-                 self._GetMustVerb(), self._script_fullpath)
+      prompt += main_prompt + ' (yes/always/NO)? '
       response = input(prompt).lower()
       print()
 
       # User is doing a one-time approval.
       if response in ('y', 'yes'):
         return True
-      elif response == 'yes-never-ask-again':
-        hooks_config.SetString(git_approval_key, new_hash)
+      elif response == 'always':
+        hooks_config.SetString(git_approval_key, new_val)
         return True
 
     # For anything else, we'll assume no approval.
@@ -449,6 +495,40 @@ class RepoHook(object):
 
     return False
 
+  def _ManifestUrlHasSecureScheme(self):
+    """Check if the URI for the manifest is a secure transport."""
+    secure_schemes = ('file', 'https', 'ssh', 'persistent-https', 'sso', 'rpc')
+    parse_results = urllib.parse.urlparse(self._manifest_url)
+    return parse_results.scheme in secure_schemes
+
+  def _CheckForHookApprovalManifest(self):
+    """Check whether the user has approved this manifest host.
+
+    Returns:
+      True if this hook is approved to run; False otherwise.
+    """
+    return self._CheckForHookApprovalHelper(
+        'approvedmanifest',
+        self._manifest_url,
+        'Run hook scripts from %s' % (self._manifest_url,),
+        'Manifest URL has changed since %s was allowed.' % (self._hook_type,))
+
+  def _CheckForHookApprovalHash(self):
+    """Check whether the user has approved the hooks repo.
+
+    Returns:
+      True if this hook is approved to run; False otherwise.
+    """
+    prompt = ('Repo %s run the script:\n'
+              '  %s\n'
+              '\n'
+              'Do you want to allow this script to run')
+    return self._CheckForHookApprovalHelper(
+        'approvedhash',
+        self._GetHash(),
+        prompt % (self._GetMustVerb(), self._script_fullpath),
+        'Scripts have changed since %s was allowed.' % (self._hook_type,))
+
   def _ExecuteHook(self, **kwargs):
     """Actually execute the given hook.
 
@@ -475,19 +555,18 @@ class RepoHook(object):
 
       # Exec, storing global context in the context dict.  We catch exceptions
       # and  convert to a HookError w/ just the failing traceback.
-      context = {}
+      context = {'__file__': self._script_fullpath}
       try:
         exec(compile(open(self._script_fullpath).read(),
                      self._script_fullpath, 'exec'), context)
       except Exception:
-        raise HookError('%s\nFailed to import %s hook; see traceback above.' % (
-                        traceback.format_exc(), self._hook_type))
+        raise HookError('%s\nFailed to import %s hook; see traceback above.' %
+                        (traceback.format_exc(), self._hook_type))
 
       # Running the script should have defined a main() function.
       if 'main' not in context:
         raise HookError('Missing main() in: "%s"' % self._script_fullpath)
 
-
       # Add 'hook_should_take_kwargs' to the arguments to be passed to main.
       # We don't actually want hooks to define their main with this argument--
       # it's there to remind them that their hook should always take **kwargs.
@@ -505,8 +584,8 @@ class RepoHook(object):
         context['main'](**kwargs)
       except Exception:
         raise HookError('%s\nFailed to run main() for %s hook; see traceback '
-                        'above.' % (
-                        traceback.format_exc(), self._hook_type))
+                        'above.' % (traceback.format_exc(),
+                                    self._hook_type))
     finally:
       # Restore sys.path and CWD.
       sys.path = orig_syspath
@@ -530,8 +609,8 @@ class RepoHook(object):
           to run a required hook (from _CheckForHookApproval).
     """
     # No-op if there is no hooks project or if hook is disabled.
-    if ((not self._hooks_project) or
-        (self._hook_type not in self._hooks_project.enabled_repo_hooks)):
+    if ((not self._hooks_project) or (self._hook_type not in
+                                      self._hooks_project.enabled_repo_hooks)):
       return
 
     # Bail with a nice error if we can't find the hook.
@@ -553,6 +632,7 @@ class Project(object):
   # These objects can only be used by a single working tree.
   working_tree_files = ['config', 'packed-refs', 'shallow']
   working_tree_dirs = ['logs', 'refs']
+
   def __init__(self,
                manifest,
                name,
@@ -605,15 +685,15 @@ class Project(object):
     self.gitdir = gitdir.replace('\\', '/')
     self.objdir = objdir.replace('\\', '/')
     if worktree:
-      self.worktree = worktree.replace('\\', '/')
+      self.worktree = os.path.normpath(worktree.replace('\\', '/'))
     else:
       self.worktree = None
     self.relpath = relpath
     self.revisionExpr = revisionExpr
 
-    if   revisionId is None \
-     and revisionExpr \
-     and IsId(revisionExpr):
+    if revisionId is None \
+            and revisionExpr \
+            and IsId(revisionExpr):
       self.revisionId = revisionExpr
     else:
       self.revisionId = revisionId
@@ -633,9 +713,8 @@ class Project(object):
     self.copyfiles = []
     self.linkfiles = []
     self.annotations = []
-    self.config = GitConfig.ForRepository(
-                    gitdir=self.gitdir,
-                    defaults=self.manifest.globalConfig)
+    self.config = GitConfig.ForRepository(gitdir=self.gitdir,
+                                          defaults=self.manifest.globalConfig)
 
     if self.worktree:
       self.work_git = self._GitGetByExec(self, bare=False, gitdir=gitdir)
@@ -773,7 +852,7 @@ class Project(object):
     """
     expanded_manifest_groups = manifest_groups or ['default']
     expanded_project_groups = ['all'] + (self.groups or [])
-    if not 'notdefault' in expanded_project_groups:
+    if 'notdefault' not in expanded_project_groups:
       expanded_project_groups += ['default']
 
     matched = False
@@ -785,7 +864,7 @@ class Project(object):
 
     return matched
 
-## Status Display ##
+# Status Display ##
   def UncommitedFiles(self, get_all=True):
     """Returns a list of strings, uncommitted files in the git tree.
 
@@ -837,7 +916,7 @@ class Project(object):
       output: If specified, redirect the output to this object.
     """
     if not os.path.isdir(self.worktree):
-      if output_redir == None:
+      if output_redir is None:
         output_redir = sys.stdout
       print(file=output_redir)
       print('project %s/' % self.relpath, file=output_redir)
@@ -856,7 +935,7 @@ class Project(object):
       return 'CLEAN'
 
     out = StatusColoring(self.config)
-    if not output_redir == None:
+    if output_redir is not None:
       out.redirect(output_redir)
     out.project('project %-40s', self.relpath + '/ ')
 
@@ -899,7 +978,7 @@ class Project(object):
 
       if i and i.src_path:
         line = ' %s%s\t%s => %s (%s%%)' % (i_status, f_status,
-                                        i.src_path, p, i.level)
+                                           i.src_path, p, i.level)
       else:
         line = ' %s%s\t%s' % (i_status, f_status, p)
 
@@ -942,7 +1021,7 @@ class Project(object):
     p.Wait()
 
 
-## Publish / Upload ##
+# Publish / Upload ##
 
   def WasPublished(self, branch, all_refs=None):
     """Was the branch published (uploaded) for code review?
@@ -1085,7 +1164,7 @@ class Project(object):
                             message=msg)
 
 
-## Sync ##
+# Sync ##
 
   def _ExtractArchive(self, tarpath, path=None):
     """Extract the given tar on its current location
@@ -1103,15 +1182,15 @@ class Project(object):
     return False
 
   def Sync_NetworkHalf(self,
-      quiet=False,
-      is_new=None,
-      current_branch_only=False,
-      force_sync=False,
-      clone_bundle=True,
-      no_tags=False,
-      archive=False,
-      optimized_fetch=False,
-      prune=False):
+                       quiet=False,
+                       is_new=None,
+                       current_branch_only=False,
+                       force_sync=False,
+                       clone_bundle=True,
+                       no_tags=False,
+                       archive=False,
+                       optimized_fetch=False,
+                       prune=False):
     """Perform only the network IO portion of the sync process.
        Local working directory/branch state is not affected.
     """
@@ -1164,8 +1243,8 @@ class Project(object):
       alt_dir = None
 
     if clone_bundle \
-    and alt_dir is None \
-    and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
+            and alt_dir is None \
+            and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
       is_new = False
 
     if not current_branch_only:
@@ -1177,12 +1256,13 @@ class Project(object):
       elif self.manifest.default.sync_c:
         current_branch_only = True
 
-    need_to_fetch = not (optimized_fetch and \
-      (ID_RE.match(self.revisionExpr) and self._CheckForSha1()))
-    if (need_to_fetch
-        and not self._RemoteFetch(initial=is_new, quiet=quiet, alt_dir=alt_dir,
-                                  current_branch_only=current_branch_only,
-                                  no_tags=no_tags, prune=prune)):
+    need_to_fetch = not (optimized_fetch and
+                         (ID_RE.match(self.revisionExpr) and
+                          self._CheckForSha1()))
+    if (need_to_fetch and
+        not self._RemoteFetch(initial=is_new, quiet=quiet, alt_dir=alt_dir,
+                              current_branch_only=current_branch_only,
+                              no_tags=no_tags, prune=prune)):
       return False
 
     if self.worktree:
@@ -1219,9 +1299,8 @@ class Project(object):
     try:
       return self.bare_git.rev_list(self.revisionExpr, '-1')[0]
     except GitError:
-      raise ManifestInvalidRevisionError(
-        'revision %s in %s not found' % (self.revisionExpr,
-                                         self.name))
+      raise ManifestInvalidRevisionError('revision %s in %s not found' %
+                                         (self.revisionExpr, self.name))
 
   def GetRevisionId(self, all_refs=None):
     if self.revisionId:
@@ -1236,9 +1315,8 @@ class Project(object):
     try:
       return self.bare_git.rev_parse('--verify', '%s^0' % rev)
     except GitError:
-      raise ManifestInvalidRevisionError(
-        'revision %s in %s not found' % (self.revisionExpr,
-                                         self.name))
+      raise ManifestInvalidRevisionError('revision %s in %s not found' %
+                                         (self.revisionExpr, self.name))
 
   def Sync_LocalHalf(self, syncbuf, force_sync=False):
     """Perform only the local IO portion of the sync process.
@@ -1327,8 +1405,8 @@ class Project(object):
           # to rewrite the published commits so we punt.
           #
           syncbuf.fail(self,
-                       "branch %s is published (but not merged) and is now %d commits behind"
-                       % (branch.name, len(upstream_gain)))
+                       "branch %s is published (but not merged) and is now "
+                       "%d commits behind" % (branch.name, len(upstream_gain)))
         return
       elif pub == head:
         # All published commits are merged, and thus we are a
@@ -1422,7 +1500,7 @@ class Project(object):
     remote = self.GetRemote(self.remote.name)
 
     cmd = ['fetch', remote.name]
-    cmd.append('refs/changes/%2.2d/%d/%d' \
+    cmd.append('refs/changes/%2.2d/%d/%d'
                % (change_id % 100, change_id, patch_id))
     if GitCommand(self, cmd, bare=True).Wait() != 0:
       return None
@@ -1433,7 +1511,7 @@ class Project(object):
                             self.bare_git.rev_parse('FETCH_HEAD'))
 
 
-## Branch Management ##
+# Branch Management ##
 
   def StartBranch(self, name, branch_merge=''):
     """Create a new branch off the manifest's revision.
@@ -1620,10 +1698,11 @@ class Project(object):
     return kept
 
 
-## Submodule Management ##
+# Submodule Management ##
 
   def GetRegisteredSubprojects(self):
     result = []
+
     def rec(subprojects):
       if not subprojects:
         return
@@ -1658,6 +1737,7 @@ class Project(object):
 
     re_path = re.compile(r'^submodule\.([^.]+)\.path=(.*)$')
     re_url = re.compile(r'^submodule\.([^.]+)\.url=(.*)$')
+
     def parse_gitmodules(gitdir, rev):
       cmd = ['cat-file', 'blob', '%s:.gitmodules' % rev]
       try:
@@ -1767,7 +1847,7 @@ class Project(object):
     return result
 
 
-## Direct Git Commands ##
+# Direct Git Commands ##
   def _CheckForSha1(self):
     try:
       # if revision (sha or tag) is not present then following function
@@ -1791,7 +1871,6 @@ class Project(object):
     if command.Wait() != 0:
       raise GitError('git archive %s: %s' % (self.name, command.stderr))
 
-
   def _RemoteFetch(self, name=None,
                    current_branch_only=False,
                    initial=False,
@@ -1838,7 +1917,10 @@ class Project(object):
         #   will fail.
         # * otherwise, fetch all branches to make sure we end up with the
         #   specific commit.
-        current_branch_only = self.upstream and not ID_RE.match(self.upstream)
+        if self.upstream:
+          current_branch_only = not ID_RE.match(self.upstream)
+        else:
+          current_branch_only = False
 
     if not name:
       name = self.remote.name
@@ -1955,9 +2037,9 @@ class Project(object):
           break
         continue
       elif current_branch_only and is_sha1 and ret == 128:
-        # Exit code 128 means "couldn't find the ref you asked for"; if we're in sha1
-        # mode, we just tried sync'ing from the upstream field; it doesn't exist, thus
-        # abort the optimization attempt and do a full sync.
+        # Exit code 128 means "couldn't find the ref you asked for"; if we're
+        # in sha1 mode, we just tried sync'ing from the upstream field; it
+        # doesn't exist, thus abort the optimization attempt and do a full sync.
         break
       elif ret < 0:
         # Git died with a signal, exit immediately
@@ -1984,20 +2066,24 @@ class Project(object):
                                    initial=False, quiet=quiet, alt_dir=alt_dir)
         if self.clone_depth:
           self.clone_depth = None
-          return self._RemoteFetch(name=name, current_branch_only=current_branch_only,
+          return self._RemoteFetch(name=name,
+                                   current_branch_only=current_branch_only,
                                    initial=False, quiet=quiet, alt_dir=alt_dir)
 
     return ok
 
   def _ApplyCloneBundle(self, initial=False, quiet=False):
-    if initial and (self.manifest.manifestProject.config.GetString('repo.depth') or self.clone_depth):
+    if initial and \
+        (self.manifest.manifestProject.config.GetString('repo.depth') or
+         self.clone_depth):
       return False
 
     remote = self.GetRemote(self.remote.name)
     bundle_url = remote.url + '/clone.bundle'
     bundle_url = GitConfig.ForUser().UrlInsteadOf(bundle_url)
-    if GetSchemeFromUrl(bundle_url) not in (
-        'http', 'https', 'persistent-http', 'persistent-https'):
+    if GetSchemeFromUrl(bundle_url) not in ('http', 'https',
+                                            'persistent-http',
+                                            'persistent-https'):
       return False
 
     bundle_dst = os.path.join(self.gitdir, 'clone.bundle')
@@ -2046,7 +2132,7 @@ class Project(object):
         os.remove(tmpPath)
     if 'http_proxy' in os.environ and 'darwin' == sys.platform:
       cmd += ['--proxy', os.environ['http_proxy']]
-    with GetUrlCookieFile(srcUrl, quiet) as (cookiefile, proxy):
+    with GetUrlCookieFile(srcUrl, quiet) as (cookiefile, _proxy):
       if cookiefile:
         cmd += ['--cookie', cookiefile, '--cookie-jar', cookiefile]
       if srcUrl.startswith('persistent-'):
@@ -2165,11 +2251,12 @@ class Project(object):
           self._CheckDirReference(self.objdir, self.gitdir, share_refs=False)
         except GitError as e:
           if force_sync:
-            print("Retrying clone after deleting %s" % self.gitdir, file=sys.stderr)
+            print("Retrying clone after deleting %s" %
+                  self.gitdir, file=sys.stderr)
             try:
               shutil.rmtree(os.path.realpath(self.gitdir))
-              if self.worktree and os.path.exists(
-                  os.path.realpath(self.worktree)):
+              if self.worktree and os.path.exists(os.path.realpath
+                                                  (self.worktree)):
                 shutil.rmtree(os.path.realpath(self.worktree))
               return self._InitGitDir(mirror_git=mirror_git, force_sync=False)
             except:
@@ -2205,6 +2292,7 @@ class Project(object):
         for key in ['user.name', 'user.email']:
           if m.Has(key, include_defaults=False):
             self.config.SetString(key, m.GetString(key))
+        self.config.SetString('filter.lfs.smudge', 'git-lfs smudge --skip -- %f')
         if self.manifest.IsMirror:
           self.config.SetString('core.bare', 'true')
         else:
@@ -2228,7 +2316,7 @@ class Project(object):
       name = os.path.basename(stock_hook)
 
       if name in ('commit-msg',) and not self.remote.review \
-            and not self is self.manifest.manifestProject:
+              and self is not self.manifest.manifestProject:
         # Don't install a Gerrit Code Review hook if this
         # project does not appear to use it for reviews.
         #
@@ -2243,7 +2331,8 @@ class Project(object):
         if filecmp.cmp(stock_hook, dst, shallow=False):
           os.remove(dst)
         else:
-          _warn("%s: Not replacing locally modified %s hook", self.relpath, name)
+          _warn("%s: Not replacing locally modified %s hook",
+                self.relpath, name)
           continue
       try:
         os.symlink(os.path.relpath(stock_hook, os.path.dirname(dst)), dst)
@@ -2289,8 +2378,8 @@ class Project(object):
         self.bare_git.symbolic_ref('-m', msg, ref, dst)
 
   def _CheckDirReference(self, srcdir, destdir, share_refs):
-    symlink_files = self.shareable_files
-    symlink_dirs = self.shareable_dirs
+    symlink_files = self.shareable_files[:]
+    symlink_dirs = self.shareable_dirs[:]
     if share_refs:
       symlink_files += self.working_tree_files
       symlink_dirs += self.working_tree_dirs
@@ -2318,8 +2407,8 @@ class Project(object):
       copy_all: If true, copy all remaining files from |gitdir| -> |dotgit|.
           This saves you the effort of initializing |dotgit| yourself.
     """
-    symlink_files = self.shareable_files
-    symlink_dirs = self.shareable_dirs
+    symlink_files = self.shareable_files[:]
+    symlink_dirs = self.shareable_dirs[:]
     if share_refs:
       symlink_files += self.working_tree_files
       symlink_dirs += self.working_tree_dirs
@@ -2411,7 +2500,7 @@ class Project(object):
   def _allrefs(self):
     return self.bare_ref.all
 
-  def _getLogs(self, rev1, rev2, oneline=False, color=True):
+  def _getLogs(self, rev1, rev2, oneline=False, color=True, pretty_format=None):
     """Get logs between two revisions of this project."""
     comp = '..'
     if rev1:
@@ -2422,6 +2511,8 @@ class Project(object):
       out = DiffColoring(self.config)
       if out.is_on and color:
         cmd.append('--color')
+      if pretty_format is not None:
+        cmd.append('--pretty=format:%s' % pretty_format)
       if oneline:
         cmd.append('--oneline')
 
@@ -2438,17 +2529,21 @@ class Project(object):
           raise
     return None
 
-  def getAddedAndRemovedLogs(self, toProject, oneline=False, color=True):
+  def getAddedAndRemovedLogs(self, toProject, oneline=False, color=True,
+                             pretty_format=None):
     """Get the list of logs from this revision to given revisionId"""
     logs = {}
     selfId = self.GetRevisionId(self._allrefs)
     toId = toProject.GetRevisionId(toProject._allrefs)
 
-    logs['added'] = self._getLogs(selfId, toId, oneline=oneline, color=color)
-    logs['removed'] = self._getLogs(toId, selfId, oneline=oneline, color=color)
+    logs['added'] = self._getLogs(selfId, toId, oneline=oneline, color=color,
+                                  pretty_format=pretty_format)
+    logs['removed'] = self._getLogs(toId, selfId, oneline=oneline, color=color,
+                                    pretty_format=pretty_format)
     return logs
 
   class _GitGetByExec(object):
+
     def __init__(self, project, bare, gitdir):
       self._project = project
       self._bare = bare
@@ -2467,8 +2562,8 @@ class Project(object):
       if p.Wait() == 0:
         out = p.stdout
         if out:
+          # Backslash is not anomalous
           return out[:-1].split('\0')  # pylint: disable=W1401
-                                       # Backslash is not anomalous
       return []
 
     def DiffZ(self, name, *args):
@@ -2494,6 +2589,7 @@ class Project(object):
               break
 
             class _Info(object):
+
               def __init__(self, path, omode, nmode, oid, nid, state):
                 self.path = path
                 self.src_path = None
@@ -2596,10 +2692,8 @@ class Project(object):
           line = line[:-1]
         r.append(line)
       if p.Wait() != 0:
-        raise GitError('%s rev-list %s: %s' % (
-                       self._project.name,
-                       str(args),
-                       p.stderr))
+        raise GitError('%s rev-list %s: %s' %
+                       (self._project.name, str(args), p.stderr))
       return r
 
     def __getattr__(self, name):
@@ -2622,6 +2716,7 @@ class Project(object):
         A callable object that will try to call git with the named command.
       """
       name = name.replace('_', '-')
+
       def runner(*args, **kwargs):
         cmdv = []
         config = kwargs.pop('config', None)
@@ -2644,10 +2739,8 @@ class Project(object):
                        capture_stdout=True,
                        capture_stderr=True)
         if p.Wait() != 0:
-          raise GitError('%s %s: %s' % (
-                         self._project.name,
-                         name,
-                         p.stderr))
+          raise GitError('%s %s: %s' %
+                         (self._project.name, name, p.stderr))
         r = p.stdout
         try:
           r = r.decode('utf-8')
@@ -2660,14 +2753,19 @@ class Project(object):
 
 
 class _PriorSyncFailedError(Exception):
+
   def __str__(self):
     return 'prior sync failed; rebase still in progress'
 
+
 class _DirtyError(Exception):
+
   def __str__(self):
     return 'contains uncommitted changes'
 
+
 class _InfoMessage(object):
+
   def __init__(self, project, text):
     self.project = project
     self.text = text
@@ -2676,7 +2774,9 @@ class _InfoMessage(object):
     syncbuf.out.info('%s/: %s', self.project.relpath, self.text)
     syncbuf.out.nl()
 
+
 class _Failure(object):
+
   def __init__(self, project, why):
     self.project = project
     self.why = why
@@ -2687,7 +2787,9 @@ class _Failure(object):
                      str(self.why))
     syncbuf.out.nl()
 
+
 class _Later(object):
+
   def __init__(self, project, action):
     self.project = project
     self.action = action
@@ -2704,14 +2806,18 @@ class _Later(object):
       out.nl()
       return False
 
+
 class _SyncColoring(Coloring):
+
   def __init__(self, config):
     Coloring.__init__(self, config, 'reposync')
     self.project = self.printer('header', attr='bold')
     self.info = self.printer('info')
     self.fail = self.printer('fail', fg='red')
 
+
 class SyncBuffer(object):
+
   def __init__(self, config, detach_head=False):
     self._messages = []
     self._failures = []
@@ -2767,8 +2873,10 @@ class SyncBuffer(object):
 
 
 class MetaProject(Project):
+
   """A special project housed under .repo.
   """
+
   def __init__(self, manifest, name, gitdir, worktree):
     Project.__init__(self,
                      manifest=manifest,
@@ -2802,10 +2910,9 @@ class MetaProject(Project):
     syncbuf.Finish()
 
     return GitCommand(self,
-                        ['update-ref', '-d', 'refs/heads/default'],
-                        capture_stdout=True,
-                        capture_stderr=True).Wait() == 0
-
+                      ['update-ref', '-d', 'refs/heads/default'],
+                      capture_stdout=True,
+                      capture_stderr=True).Wait() == 0
 
   @property
   def LastFetch(self):
diff --git a/repo b/repo
index 47211742..f9eb9e8a 100755
--- a/repo
+++ b/repo
@@ -23,7 +23,7 @@ REPO_REV = 'stable'
 # limitations under the License.
 
 # increment this whenever we make important changes to this script
-VERSION = (1, 22)
+VERSION = (1, 23)
 
 # increment this if the MAINTAINER_KEYS block is modified
 KEYRING_VERSION = (1, 2)
@@ -196,6 +196,9 @@ group.add_option('-p', '--platform',
                  help='restrict manifest projects to ones with a specified '
                       'platform group [auto|all|none|linux|darwin|...]',
                  metavar='PLATFORM')
+group.add_option('--no-clone-bundle',
+                 dest='no_clone_bundle', action='store_true',
+                 help='disable use of /clone.bundle on HTTP/HTTPS')
 
 
 # Tool
@@ -339,7 +342,7 @@ def _Init(args, gitc_init=False):
       can_verify = True
 
     dst = os.path.abspath(os.path.join(repodir, S_repo))
-    _Clone(url, dst, opt.quiet)
+    _Clone(url, dst, opt.quiet, not opt.no_clone_bundle)
 
     if can_verify and not opt.no_repo_verify:
       rev = _Verify(dst, branch, opt.quiet)
@@ -432,7 +435,10 @@ def SetupGnuPG(quiet):
       sys.exit(1)
 
   env = os.environ.copy()
-  env['GNUPGHOME'] = gpg_dir.encode()
+  try:
+    env['GNUPGHOME'] = gpg_dir
+  except UnicodeEncodeError:
+    env['GNUPGHOME'] = gpg_dir.encode()
 
   cmd = ['gpg', '--import']
   try:
@@ -543,7 +549,7 @@ def _DownloadBundle(url, local, quiet):
     try:
       r = urllib.request.urlopen(url)
     except urllib.error.HTTPError as e:
-      if e.code in [401, 403, 404]:
+      if e.code in [401, 403, 404, 501]:
         return False
       _print('fatal: Cannot get %s' % url, file=sys.stderr)
       _print('fatal: HTTP error %s' % e.code, file=sys.stderr)
@@ -574,7 +580,7 @@ def _ImportBundle(local):
     os.remove(path)
 
 
-def _Clone(url, local, quiet):
+def _Clone(url, local, quiet, clone_bundle):
   """Clones a git repository to a new subdirectory of repodir
   """
   try:
@@ -604,7 +610,7 @@ def _Clone(url, local, quiet):
   _SetConfig(local,
              'remote.origin.fetch',
              '+refs/heads/*:refs/remotes/origin/*')
-  if _DownloadBundle(url, local, quiet):
+  if clone_bundle and _DownloadBundle(url, local, quiet):
     _ImportBundle(local)
   _Fetch(url, local, 'origin', quiet)
 
@@ -638,7 +644,10 @@ def _Verify(cwd, branch, quiet):
       _print(file=sys.stderr)
 
   env = os.environ.copy()
-  env['GNUPGHOME'] = gpg_dir.encode()
+  try:
+    env['GNUPGHOME'] = gpg_dir
+  except UnicodeEncodeError:
+    env['GNUPGHOME'] = gpg_dir.encode()
 
   cmd = [GIT, 'tag', '-v', cur]
   proc = subprocess.Popen(cmd,
diff --git a/subcmds/diffmanifests.py b/subcmds/diffmanifests.py
index 05998681..751a2026 100644
--- a/subcmds/diffmanifests.py
+++ b/subcmds/diffmanifests.py
@@ -71,6 +71,10 @@ synced and their revisions won't be found.
     p.add_option('--no-color',
                  dest='color', action='store_false', default=True,
                  help='does not display the diff in color.')
+    p.add_option('--pretty-format',
+                 dest='pretty_format', action='store',
+                 metavar='<FORMAT>',
+                 help='print the log using a custom git pretty format string')
 
   def _printRawDiff(self, diff):
     for project in diff['added']:
@@ -92,7 +96,7 @@ synced and their revisions won't be found.
                                      otherProject.revisionExpr))
       self.out.nl()
 
-  def _printDiff(self, diff, color=True):
+  def _printDiff(self, diff, color=True, pretty_format=None):
     if diff['added']:
       self.out.nl()
       self.printText('added projects : \n')
@@ -124,7 +128,8 @@ synced and their revisions won't be found.
         self.printText(' to ')
         self.printRevision(otherProject.revisionExpr)
         self.out.nl()
-        self._printLogs(project, otherProject, raw=False, color=color)
+        self._printLogs(project, otherProject, raw=False, color=color,
+                        pretty_format=pretty_format)
         self.out.nl()
 
     if diff['unreachable']:
@@ -139,9 +144,13 @@ synced and their revisions won't be found.
         self.printText(' not found')
         self.out.nl()
 
-  def _printLogs(self, project, otherProject, raw=False, color=True):
-    logs = project.getAddedAndRemovedLogs(otherProject, oneline=True,
-                                          color=color)
+  def _printLogs(self, project, otherProject, raw=False, color=True,
+                 pretty_format=None):
+
+    logs = project.getAddedAndRemovedLogs(otherProject,
+                                          oneline=(pretty_format is None),
+                                          color=color,
+                                          pretty_format=pretty_format)
     if logs['removed']:
       removedLogs = logs['removed'].split('\n')
       for log in removedLogs:
@@ -192,4 +201,4 @@ synced and their revisions won't be found.
     if opt.raw:
       self._printRawDiff(diff)
     else:
-      self._printDiff(diff, color=opt.color)
+      self._printDiff(diff, color=opt.color, pretty_format=opt.pretty_format)
diff --git a/subcmds/forall.py b/subcmds/forall.py
index b10f34b3..07ee8d58 100644
--- a/subcmds/forall.py
+++ b/subcmds/forall.py
@@ -120,6 +120,9 @@ without iterating through the remaining projects.
     p.add_option('-r', '--regex',
                  dest='regex', action='store_true',
                  help="Execute the command only on projects matching regex or wildcard expression")
+    p.add_option('-i', '--inverse-regex',
+                 dest='inverse_regex', action='store_true',
+                 help="Execute the command only on projects not matching regex or wildcard expression")
     p.add_option('-g', '--groups',
                  dest='groups',
                  help="Execute the command only on projects matching the specified groups")
@@ -215,10 +218,12 @@ without iterating through the remaining projects.
     if os.path.isfile(smart_sync_manifest_path):
       self.manifest.Override(smart_sync_manifest_path)
 
-    if not opt.regex:
-      projects = self.GetProjects(args, groups=opt.groups)
-    else:
+    if opt.regex:
       projects = self.FindProjects(args)
+    elif opt.inverse_regex:
+      projects = self.FindProjects(args, inverse=True)
+    else:
+      projects = self.GetProjects(args, groups=opt.groups)
 
     os.environ['REPO_COUNT'] = str(len(projects))
 
diff --git a/subcmds/init.py b/subcmds/init.py
index b8e3de5a..45d69b79 100644
--- a/subcmds/init.py
+++ b/subcmds/init.py
@@ -61,6 +61,11 @@ directory use as much data as possible from the local reference
 directory when fetching from the server. This will make the sync
 go a lot faster by reducing data traffic on the network.
 
+The --no-clone-bundle option disables any attempt to use
+$URL/clone.bundle to bootstrap a new Git repository from a
+resumeable bundle file on a content delivery network. This
+may be necessary if there are problems with the local Python
+HTTP client or proxy configuration, but the Git binary works.
 
 Switching Manifest Branches
 ---------------------------
@@ -113,6 +118,9 @@ to update the working directory files.
                  help='restrict manifest projects to ones with a specified '
                       'platform group [auto|all|none|linux|darwin|...]',
                  metavar='PLATFORM')
+    g.add_option('--no-clone-bundle',
+                 dest='no_clone_bundle', action='store_true',
+                 help='disable use of /clone.bundle on HTTP/HTTPS')
 
     # Tool
     g = p.add_option_group('repo Version options')
@@ -222,7 +230,8 @@ to update the working directory files.
               'in another location.', file=sys.stderr)
         sys.exit(1)
 
-    if not m.Sync_NetworkHalf(is_new=is_new):
+    if not m.Sync_NetworkHalf(is_new=is_new, quiet=opt.quiet,
+        clone_bundle=not opt.no_clone_bundle):
       r = m.GetRemote(m.remote.name)
       print('fatal: cannot obtain manifest %s' % r.url, file=sys.stderr)
 
diff --git a/subcmds/start.py b/subcmds/start.py
index d1430a9d..290b6897 100644
--- a/subcmds/start.py
+++ b/subcmds/start.py
@@ -54,8 +54,7 @@ revision specified in the manifest.
     if not opt.all:
       projects = args[1:]
       if len(projects) < 1:
-        print("error: at least one project must be specified", file=sys.stderr)
-        sys.exit(1)
+        projects = ['.',]  # start it in the local project by default
 
     all_projects = self.GetProjects(projects,
                                     missing_ok=bool(self.gitc_manifest))
diff --git a/subcmds/sync.py b/subcmds/sync.py
index 4af411c9..9124a653 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -242,7 +242,7 @@ later is required to fix a server side protocol bug.
     if show_smart:
       p.add_option('-s', '--smart-sync',
                    dest='smart_sync', action='store_true',
-                   help='smart sync using manifest from a known good build')
+                   help='smart sync using manifest from the latest known good build')
       p.add_option('-t', '--smart-tag',
                    dest='smart_tag', action='store',
                    help='smart sync using manifest from a known tag')
diff --git a/subcmds/upload.py b/subcmds/upload.py
index 674fc17d..1172dadc 100644
--- a/subcmds/upload.py
+++ b/subcmds/upload.py
@@ -454,9 +454,15 @@ Gerrit Code Review:  http://code.google.com/p/gerrit/
       if avail:
         pending.append((project, avail))
 
-    if pending and (not opt.bypass_hooks):
+    if not pending:
+      print("no branches ready for upload", file=sys.stderr)
+      return
+
+    if not opt.bypass_hooks:
       hook = RepoHook('pre-upload', self.manifest.repo_hooks_project,
-                      self.manifest.topdir, abort_if_user_denies=True)
+                      self.manifest.topdir,
+                      self.manifest.manifestProject.GetRemote('origin').url,
+                      abort_if_user_denies=True)
       pending_proj_names = [project.name for (project, avail) in pending]
       pending_worktrees = [project.worktree for (project, avail) in pending]
       try:
@@ -472,9 +478,7 @@ Gerrit Code Review:  http://code.google.com/p/gerrit/
       cc = _SplitEmails(opt.cc)
     people = (reviewers, cc)
 
-    if not pending:
-      print("no branches ready for upload", file=sys.stderr)
-    elif len(pending) == 1 and len(pending[0][1]) == 1:
+    if len(pending) == 1 and len(pending[0][1]) == 1:
       self._SingleBranch(opt, pending[0][1][0], people)
     else:
       self._MultipleBranches(opt, pending, people)