Issue 4503 - ensure_dependencies.py fails for git submodule

ensure_dependencies.py

 #!/usr/bin/env python
 # coding: utf-8
 
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 import sys
 import os
 import posixpath
@@ skipping 59 matching lines @@
       config.read(config_path)
 
       if not config.has_section("ui"):
         config.add_section("ui")
 
       config.set("ui", "ignore.dependencies", ignore_path)
       with open(config_path, "w") as stream:
         config.write(stream)
 
       module = os.path.relpath(target, repo)
       _ensure_line_exists(ignore_path, module)

[anton, 2016/10/07 19:11:43]

probably should add try except here too

 
 class Git():
   def istype(self, repodir):
     return os.path.exists(os.path.join(repodir, ".git"))
 
   def clone(self, source, target):
     source = source.rstrip("/")
     if not source.endswith(".git"):
       source += ".git"
     subprocess.check_call(["git", "clone", "--quiet", source, target])
 
   def get_revision_id(self, repo, rev="HEAD"):
     command = ["git", "rev-parse", "--revs-only", rev + '^{commit}']
     return subprocess.check_output(command, cwd=repo).strip()
 
   def pull(self, repo):
     subprocess.check_call(["git", "fetch", "--quiet", "--all", "--tags"], cwd=repo)
 
   def update(self, repo, rev):
     subprocess.check_call(["git", "checkout", "--quiet", rev], cwd=repo)
 
   def ignore(self, target, repo):
     module = os.path.relpath(target, repo)
     exclude_file = os.path.join(repo, ".git", "info", "exclude")
-    _ensure_line_exists(exclude_file, module)
+    try:
+      _ensure_line_exists(exclude_file, module)
+    except IOError, e:
+      if e.errno != errno.ENOENT and e.errno != errno.ENOTDIR:
+        raise
+      logging.warning("File %s doesn't exist, skipping ignore" % exclude_file)
+      return
 
 repo_types = OrderedDict((
   ("hg", Mercurial()),
   ("git", Git()),
 ))
 
 def parse_spec(path, line):
   if "=" not in line:
     logging.warning("Invalid line in file %s: %s" % (path, line))
     return None, None
@@ skipping 174 matching lines @@
   args = parser.parse_args()
 
   if args.quiet:
     logging.disable(logging.INFO)
 
   repos = args.repos
   if not len(repos):
     repos = [os.path.dirname(__file__)]
   for repo in repos:
     resolve_deps(repo)