[release-tools] Only read from the chromium checkout in v8rel.

tools/release/git_recipes.py

 #!/usr/bin/env python
 # Copyright 2014 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
@@ skipping 145 matching lines @@
 
   @Strip
   def GitCurrentBranch(self, **kwargs):
     for line in self.Git("status -s -b -uno", **kwargs).strip().splitlines():
       match = re.match(r"^## (.+)", line)
       if match: return match.group(1)
     raise Exception("Couldn't find curent branch.")  # pragma: no cover
 
   @Strip
   def GitLog(self, n=0, format="", grep="", git_hash="", parent_hash="",
-             branch="", reverse=False, **kwargs):
+             branch="", path=None, reverse=False, **kwargs):
     assert not (git_hash and parent_hash)
     args = ["log"]
     if n > 0:
       args.append("-%d" % n)
     if format:
       args.append("--format=%s" % format)
     if grep:
       args.append("--grep=\"%s\"" % grep.replace("\"", "\\\""))
     if reverse:
       args.append("--reverse")
     if git_hash:
       args.append(git_hash)
     if parent_hash:
       args.append("%s^" % parent_hash)
     args.append(branch)
+    if path:
+      args.extend(["--", path])

[tandrii(chromium), 2015/04/07 15:13:51]

nice!

     return self.Git(MakeArgs(args), **kwargs)
 
+  def GitShowFile(self, refspec, path, **kwargs):
+    assert refspec
+    assert path
+    return self.Git(MakeArgs(["show", "%s:%s" % (refspec, path)]), **kwargs)
+
   def GitGetPatch(self, git_hash, **kwargs):
     assert git_hash
     return self.Git(MakeArgs(["log", "-1", "-p", git_hash]), **kwargs)
 
   # TODO(machenbach): Unused? Remove.
   def GitAdd(self, name, **kwargs):
     assert name
     self.Git(MakeArgs(["add", Quoted(name)]), **kwargs)
 
   def GitApplyPatch(self, patch_file, reverse=False, **kwargs):
@@ skipping 40 matching lines @@
   def GitCLLand(self, **kwargs):
     self.Git(
         "cl land -f --bypass-hooks", retry_on=lambda x: x is None, **kwargs)
 
   def GitDiff(self, loc1, loc2, **kwargs):
     return self.Git(MakeArgs(["diff", loc1, loc2]), **kwargs)
 
   def GitPull(self, **kwargs):
     self.Git("pull", **kwargs)
 
-  def GitFetchOrigin(self, **kwargs):
-    self.Git("fetch origin", **kwargs)
+  def GitFetchOrigin(self, *refspecs, **kwargs):
+    self.Git(MakeArgs(["fetch", "origin"] + list(refspecs)), **kwargs)
 
   @Strip
   # Copied from bot_update.py and modified for svn-like numbers only.
   def GetCommitPositionNumber(self, git_hash, **kwargs):
     """Dumps the 'git' log for a specific revision and parses out the commit
     position number.
 
     If a commit position metadata key is found, its number will be returned.
 
     Otherwise, we will search for a 'git-svn' metadata entry. If one is found,
@@ skipping 10 matching lines @@
         return match.group(2)
 
     # Extract the svn revision from 'git-svn' metadata
     value = footer_map.get(GIT_SVN_ID_FOOTER_KEY)
     if value:
       match = GIT_SVN_ID_RE.match(value)
       if match:
         return match.group(1)
     raise GitFailedException("Couldn't determine commit position for %s" %
                              git_hash)