[Release] Automatically notify mailing list on a pending merge

tools/release/test_scripts.py

 #!/usr/bin/env python
 # Copyright 2013 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 371 matching lines @@
     with open(version_file, "w") as f:
       f.write("  // Some line...\n")
       f.write("\n")
       f.write("#define V8_MAJOR_VERSION    %s\n" % major)
       f.write("#define V8_MINOR_VERSION    %s\n" % minor)
       f.write("#define V8_BUILD_NUMBER     %s\n" % build)
       f.write("#define V8_PATCH_LEVEL      %s\n" % patch)
       f.write("  // Some line...\n")
       f.write("#define V8_IS_CANDIDATE_VERSION 0\n")
 
+  def WriteFakeWatchlistsFile(self):
+    watchlists_file = os.path.join(TEST_CONFIG["DEFAULT_CWD"], WATCHLISTS_FILE)
+    if not os.path.exists(os.path.dirname(watchlists_file)):
+      os.makedirs(os.path.dirname(watchlists_file))
+    with open(watchlists_file, "w") as f:
+
+      content = """
+    'merges': [
+      # Only enabled on branches created with tools/release/create_release.py
+      # 'v8-merges@googlegroups.com',
+    ],
+"""
+      f.write(content)
+
   def MakeStep(self):
     """Convenience wrapper."""
     options = ScriptsBase(TEST_CONFIG, self, self._state).MakeOptions([])
     return MakeStep(step_class=Step, state=self._state,
                     config=TEST_CONFIG, side_effect_handler=self,
                     options=options)
 
   def RunStep(self, script=PushToCandidates, step_class=Step, args=None):
     """Convenience wrapper."""
     args = args if args is not None else ["-m"]
@@ skipping 543 matching lines @@
       Cmd("git log -1 --format=%H release_hash^", "abc3\n"),
       Cmd("git log --format=%H abc3..push_hash", "rev1\n"),
       Cmd("git log -1 --format=%s rev1", "Log text 1.\n"),
       Cmd("git log -1 --format=%B rev1", "Text\nLOG=YES\nBUG=v8:321\nText\n"),
       Cmd("git log -1 --format=%an rev1", "author1@chromium.org\n"),
       Cmd("git reset --hard origin/master", ""),
       Cmd("git checkout -b work-branch push_hash", ""),
       Cmd("git checkout -f 3.22.4 -- ChangeLog", "", cb=ResetChangeLog),
       Cmd("git checkout -f 3.22.4 -- include/v8-version.h", "",
           cb=self.WriteFakeVersionFile),
+      Cmd("git checkout -f 3.22.4 -- WATCHLISTS", "",
+          cb=self.WriteFakeWatchlistsFile),
       Cmd("git commit -aF \"%s\"" % TEST_CONFIG["COMMITMSG_FILE"], "",
           cb=CheckVersionCommit),
       Cmd("git push origin "
           "refs/heads/work-branch:refs/pending/heads/3.22.5 "
           "push_hash:refs/pending-tags/heads/3.22.5 "
           "push_hash:refs/heads/3.22.5", ""),
       Cmd("git fetch", ""),
       Cmd("git log -1 --format=%H --grep="
           "\"Version 3.22.5\" origin/3.22.5", "hsh_to_tag"),
       Cmd("git tag 3.22.5 hsh_to_tag", ""),
@@ skipping 11 matching lines @@
     CreateRelease(TEST_CONFIG, self).Run(args)
 
     cl = FileToText(os.path.join(TEST_CONFIG["DEFAULT_CWD"], CHANGELOG_FILE))
     self.assertTrue(re.search(r"^\d\d\d\d\-\d+\-\d+: Version 3\.22\.5", cl))
     self.assertTrue(re.search(r"        Log text 1 \(issue 321\).", cl))
     self.assertTrue(re.search(r"1999\-04\-05: Version 3\.22\.4", cl))
 
     # Note: The version file is on build number 5 again in the end of this test
     # since the git command that merges to master is mocked out.
 
+    # Check for correct content of the WATCHLISTS file
+
+    watchlists_content = FileToText(os.path.join(TEST_CONFIG["DEFAULT_CWD"],
+                                          WATCHLISTS_FILE))
+    expected_watchlists_content = """
+    'merges': [
+      # Only enabled on branches created with tools/release/create_release.py
+      'v8-merges@googlegroups.com',
+    ],
+"""
+    self.assertEqual(watchlists_content, expected_watchlists_content)
+
   C_V8_22624_LOG = """V8 CL.
 
 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22624 123
 
 """
 
   C_V8_123455_LOG = """V8 CL.
 
 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@123455 123
 
@@ skipping 547 matching lines @@
 
 Review URL: https://codereview.chromium.org/83173002
 
 ------------------------------------------------------------------------""")
     self.assertEquals(
 """Prepare push to trunk.  Now working on version 3.23.11.
 
 R=danno@chromium.org
 
 Committed: https://code.google.com/p/v8/source/detail?r=17997""", body)