superproject: Display status messages during repo init/sync.

Superproject objects accept the optional argument “quiet”.
The following progress messages are displayed if quiet is false.

Displayed the following message whenever we find we have to make a new
folder (aka new remote), because if you started with repo init android
and later do googleplex-android that is when it will be slow.

"<location>: Performing initial setup for superproject; this might take
several minutes.".

After fetch completion, added the following notification:
"<location>: Initial setup for superproject completed."

Tested the code with the following commands.

$ ./run_tests -v

Tested the sync code by using repo_dev alias and pointing to this CL.

$ repo_dev init -u persistent-https://googleplex-android.git.corp.google.com/platform/manifest -b rvc-dev  --partial-clone --clone-filter=blob:limit=10M --repo-rev=main  --use-superproject

Bug: [google internal] b/181178282
Bug: https://crbug.com/gerrit/13707
Change-Id: Ia7fb85c6fb934faaa90c48fc0c55e7f41055f48a
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/299122
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>

error.py

@@ -22,12 +22,12 @@ class ManifestParseError(Exception):
   """
 
 
-class ManifestInvalidRevisionError(Exception):
+class ManifestInvalidRevisionError(ManifestParseError):
   """The revision value in a project is incorrect.
   """
 
 
-class ManifestInvalidPathError(Exception):
+class ManifestInvalidPathError(ManifestParseError):
   """A path used in <copyfile> or <linkfile> is incorrect.
   """
 

git_superproject.py

@@ -41,7 +41,8 @@ class Superproject(object):
   lookup of commit ids for all projects. It contains _project_commit_ids which
   is a dictionary with project/commit id entries.
   """
-  def __init__(self, manifest, repodir, superproject_dir='exp-superproject'):
+  def __init__(self, manifest, repodir, superproject_dir='exp-superproject',
+               quiet=False):
     """Initializes superproject.
 
     Args:
@@ -49,9 +50,11 @@ class Superproject(object):
       repodir: Path to the .repo/ dir for holding all internal checkout state.
           It must be in the top directory of the repo client checkout.
       superproject_dir: Relative path under |repodir| to checkout superproject.
+      quiet:  If True then only print the progress messages.
     """
     self._project_commit_ids = None
     self._manifest = manifest
+    self._quiet = quiet
     self._branch = self._GetBranch()
     self._repodir = os.path.abspath(repodir)
     self._superproject_dir = superproject_dir
@@ -89,6 +92,9 @@ class Superproject(object):
     """
     if not os.path.exists(self._superproject_path):
       os.mkdir(self._superproject_path)
+    if not self._quiet and not os.path.exists(self._work_git):
+      print('%s: Performing initial setup for superproject; this might take '
+            'several minutes.' % self._work_git)
     cmd = ['init', '--bare', self._work_git_name]
     p = GitCommand(None,
                    cmd,
@@ -183,6 +189,8 @@ class Superproject(object):
       return False
     if not self._Fetch(url):
       return False
+    if not self._quiet:
+      print('%s: Initial setup for superproject completed.' % self._work_git)
     return True
 
   def _GetAllProjectsCommitIds(self):

manifest_xml.py

@@ -624,16 +624,22 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
         b = b[len(R_HEADS):]
       self.branch = b
 
+      # The manifestFile was specified by the user which is why we allow include
+      # paths to point anywhere.
       nodes = []
-      nodes.append(self._ParseManifestXml(self.manifestFile,
-                                          self.manifestProject.worktree))
+      nodes.append(self._ParseManifestXml(
+          self.manifestFile, self.manifestProject.worktree,
+          restrict_includes=False))
 
       if self._load_local_manifests and self.local_manifests:
         try:
           for local_file in sorted(platform_utils.listdir(self.local_manifests)):
             if local_file.endswith('.xml'):
               local = os.path.join(self.local_manifests, local_file)
-              nodes.append(self._ParseManifestXml(local, self.repodir))
+              # Since local manifests are entirely managed by the user, allow
+              # them to point anywhere the user wants.
+              nodes.append(self._ParseManifestXml(
+                  local, self.repodir, restrict_includes=False))
         except OSError:
           pass
 
@@ -651,7 +657,19 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
 
       self._loaded = True
 
-  def _ParseManifestXml(self, path, include_root, parent_groups=''):
+  def _ParseManifestXml(self, path, include_root, parent_groups='',
+                        restrict_includes=True):
+    """Parse a manifest XML and return the computed nodes.
+
+    Args:
+      path: The XML file to read & parse.
+      include_root: The path to interpret include "name"s relative to.
+      parent_groups: The groups to apply to this projects.
+      restrict_includes: Whether to constrain the "name" attribute of includes.
+
+    Returns:
+      List of XML nodes.
+    """
     try:
       root = xml.dom.minidom.parse(path)
     except (OSError, xml.parsers.expat.ExpatError) as e:
@@ -670,10 +688,11 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
     for node in manifest.childNodes:
       if node.nodeName == 'include':
         name = self._reqatt(node, 'name')
-        msg = self._CheckLocalPath(name)
-        if msg:
-          raise ManifestInvalidPathError(
-              '<include> invalid "name": %s: %s' % (name, msg))
+        if restrict_includes:
+          msg = self._CheckLocalPath(name)
+          if msg:
+            raise ManifestInvalidPathError(
+                '<include> invalid "name": %s: %s' % (name, msg))
         include_groups = ''
         if parent_groups:
           include_groups = parent_groups
@@ -681,13 +700,13 @@ https://gerrit.googlesource.com/git-repo/+/HEAD/docs/manifest-format.md
           include_groups = node.getAttribute('groups') + ',' + include_groups
         fp = os.path.join(include_root, name)
         if not os.path.isfile(fp):
-          raise ManifestParseError("include %s doesn't exist or isn't a file"
-                                   % (name,))
+          raise ManifestParseError("include [%s/]%s doesn't exist or isn't a file"
+                                   % (include_root, name))
         try:
           nodes.extend(self._ParseManifestXml(fp, include_root, include_groups))
         # should isolate this to the exact exception, but that's
         # tricky.  actual parsing implementation may vary.
-        except (KeyboardInterrupt, RuntimeError, SystemExit):
+        except (KeyboardInterrupt, RuntimeError, SystemExit, ManifestParseError):
           raise
         except Exception as e:
           raise ManifestParseError(

project.py

@@ -1150,7 +1150,7 @@ class Project(object):
         p = GitCommand(self, cmd, bare=True, capture_stdout=bool(output_redir),
                        merge_output=bool(output_redir))
         if p.stdout and output_redir:
-          buf.write(p.stdout)
+          output_redir.write(p.stdout)
         if p.Wait() != 0:
           return False
         platform_utils.remove(alternates_file)

subcmds/init.py

@@ -185,10 +185,15 @@ to update the working directory files.
     return {'REPO_MANIFEST_URL': 'manifest_url',
             'REPO_MIRROR_LOCATION': 'reference'}
 
-  def _CloneSuperproject(self):
-    """Clone the superproject based on the superproject's url and branch."""
+  def _CloneSuperproject(self, opt):
+    """Clone the superproject based on the superproject's url and branch.
+
+    Args:
+      opt: Program options returned from optparse.  See _Options().
+    """
     superproject = git_superproject.Superproject(self.manifest,
-                                                 self.repodir)
+                                                 self.repodir,
+                                                 quiet=opt.quiet)
     if not superproject.Sync():
       print('error: git update of superproject failed', file=sys.stderr)
       sys.exit(1)
@@ -553,7 +558,7 @@ to update the working directory files.
     self._LinkManifest(opt.manifest_name)
 
     if self.manifest.manifestProject.config.GetBoolean('repo.superproject'):
-      self._CloneSuperproject()
+      self._CloneSuperproject(opt)
 
     if os.isatty(0) and os.isatty(1) and not self.manifest.IsMirror:
       if opt.config_name or self._ShouldConfigureUser(opt):

subcmds/sync.py

@@ -292,7 +292,8 @@ later is required to fix a server side protocol bug.
       Returns path to the overriding manifest file.
     """
     superproject = git_superproject.Superproject(self.manifest,
-                                                 self.repodir)
+                                                 self.repodir,
+                                                 quiet=opt.quiet)
     all_projects = self.GetProjects(args,
                                     missing_ok=True,
                                     submodules_ok=opt.fetch_submodules)

tests/test_manifest_xml.py

@@ -298,8 +298,8 @@ class IncludeElementTests(ManifestParseTestCase):
         # Check level2 proj group not removed.
         self.assertIn('l2g1', proj.groups)
 
-  def test_bad_name_checks(self):
-    """Check handling of bad name attribute."""
+  def test_allow_bad_name_from_user(self):
+    """Check handling of bad name attribute from the user's input."""
     def parse(name):
       manifest = self.getXmlManifest(f"""
 <manifest>
@@ -307,6 +307,34 @@ class IncludeElementTests(ManifestParseTestCase):
   <default remote="default-remote" revision="refs/heads/main" />
   <include name="{name}" />
 </manifest>
+""")
+      # Force the manifest to be parsed.
+      manifest.ToXml()
+
+    # Setup target of the include.
+    target = os.path.join(self.tempdir, 'target.xml')
+    with open(target, 'w') as fp:
+      fp.write('<manifest></manifest>')
+
+    # Include with absolute path.
+    parse(os.path.abspath(target))
+
+    # Include with relative path.
+    parse(os.path.relpath(target, self.manifest_dir))
+
+  def test_bad_name_checks(self):
+    """Check handling of bad name attribute."""
+    def parse(name):
+      # Setup target of the include.
+      with open(os.path.join(self.manifest_dir, 'target.xml'), 'w') as fp:
+        fp.write(f'<manifest><include name="{name}"/></manifest>')
+
+      manifest = self.getXmlManifest("""
+<manifest>
+  <remote name="default-remote" fetch="http://localhost" />
+  <default remote="default-remote" revision="refs/heads/main" />
+  <include name="target.xml" />
+</manifest>
 """)
       # Force the manifest to be parsed.
       manifest.ToXml()

tests/test_wrapper.py

@@ -305,8 +305,8 @@ class Requirements(RepoWrapperTestCase):
     reqs = self.wrapper.Requirements({'python': {'hard': sys.version_info}})
     reqs.assert_all()
 
-  def test_assert_all_old_repo(self):
-    """Check assert_all rejects old repo."""
+  def test_assert_all_old_python(self):
+    """Check assert_all rejects old python."""
     reqs = self.wrapper.Requirements({'python': {'hard': [99999, 0]}})
     with self.assertRaises(SystemExit):
       reqs.assert_all()