Revert "Maintain change log file directly on trunk branch in push-to-trunk." and related changes.

This reverts r19876, r19902 and r19903. The changes made git diff' in push-to-trunk unusable.

TBR=jarin@chromium.org

Review URL: https://codereview.chromium.org/197313005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

-2014-03-13: Version 3.25.10
-
-        MIPS: Fix uses of range analysis results in HChange (issue 3204).
-
-        Make translation of modulus operation '--stress-opt'-proof (Chromium
-        issue 352059).
-
-        Remove uses of CanBeNegative() in HMod (issue 3204).
-
-        Remove uses of RangeCanInclude() in flooring division by power of 2
-        (issue 3204).
-
-        Fix uses of range analysis results in HChange (issue 3204).
-
-        Performance and stability improvements on all platforms.
-
-
 2014-03-13: Version 3.25.9
 
         Reland "Enable Object.observe by default" again (issue 2409).

src/version.cc

@@ -34,7 +34,7 @@
 // system so their names cannot be changed without changing the scripts.
 #define MAJOR_VERSION     3
 #define MINOR_VERSION     25
-#define BUILD_NUMBER      11
+#define BUILD_NUMBER      10
 #define PATCH_LEVEL       0
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

tools/push-to-trunk/git_recipes.py

@@ -133,11 +133,8 @@ class GitRecipesMixin(object):
   def GitDCommit(self):
     self.Git("cl dcommit -f --bypass-hooks", retry_on=lambda x: x is None)
 
-  def GitDiff(self, loc1, loc2, exclude=None):
-    exclude = exclude or []
-    files = self.Git(MakeArgs(["diff", "--name-only", loc1, loc2]))
-    files = filter(lambda f: f not in exclude, files.strip().splitlines())
-    return self.Git(MakeArgs(["diff", loc1, loc2] + files))
+  def GitDiff(self, loc1, loc2):
+    return self.Git(MakeArgs(["diff", loc1, loc2]))
 
   def GitPull(self):
     self.Git("pull")

tools/push-to-trunk/push_to_trunk.py

@@ -267,12 +267,8 @@ class SquashCommits(Step):
 
   def RunStep(self):
     # Instead of relying on "git rebase -i", we'll just create a diff, because
-    # that's easier to automate. Exclude the ChangeLog file. It is not
-    # maintained on bleeding edge. Changes will be added in a separate step
-    # below.
-    TextToFile(self.GitDiff("svn/trunk",
-                            self["prepare_commit_hash"],
-                            exclude=[self.Config(CHANGELOG_FILE)]),
+    # that's easier to automate.
+    TextToFile(self.GitDiff("svn/trunk", self["prepare_commit_hash"]),
                self.Config(PATCH_FILE))
 
     # Convert the ChangeLog entry to commit message format.
@@ -315,16 +311,6 @@ class ApplyChanges(Step):
     Command("rm", "-f %s*" % self.Config(PATCH_FILE))
 
 
-class AddChangeLog(Step):
-  MESSAGE = "Add ChangeLog changes to trunk branch."
-
-  def RunStep(self):
-    changelog_entry = FileToText(self.Config(NEW_CHANGELOG_FILE))
-    old_change_log = FileToText(self.Config(CHANGELOG_FILE))
-    new_change_log = "%s\n\n\n%s" % (changelog_entry, old_change_log)
-    TextToFile(new_change_log, self.Config(CHANGELOG_FILE))
-    os.remove(self.Config(NEW_CHANGELOG_FILE))
-
 class SetVersion(Step):
   MESSAGE = "Set correct version for trunk."
 
@@ -543,7 +529,6 @@ class PushToTrunk(ScriptsBase):
       SquashCommits,
       NewBranch,
       ApplyChanges,
-      AddChangeLog,
       SetVersion,
       CommitTrunk,
       SanityCheck,

tools/push-to-trunk/test_scripts.py

@@ -589,8 +589,7 @@ class ScriptTest(unittest.TestCase):
       f.write(change_log)
 
     self.ExpectGit([
-      Git("diff --name-only svn/trunk hash1", "file1\nfile2\n"),
-      Git("diff svn/trunk hash1 file1 file2", "patch content"),
+      Git("diff svn/trunk hash1", "patch content"),
       Git("svn find-rev hash1", "123455\n"),
     ])
 
@@ -643,10 +642,7 @@ Performance and stability improvements on all platforms."""
     TEST_CONFIG[CHANGELOG_FILE] = self.MakeEmptyTempFile()
     if not os.path.exists(TEST_CONFIG[CHROMIUM]):
       os.makedirs(TEST_CONFIG[CHROMIUM])
-    old_change_log = """1999-04-05: Version 3.22.4
-
-        Performance and stability improvements on all platforms.\n"""
-    TextToFile(old_change_log, TEST_CONFIG[CHANGELOG_FILE])
+    TextToFile("1999-04-05: Version 3.22.4", TEST_CONFIG[CHANGELOG_FILE])
     TextToFile("Some line\n   \"v8_revision\": \"123444\",\n  some line",
                  TEST_CONFIG[DEPS_FILE])
     os.environ["EDITOR"] = "vi"
@@ -663,11 +659,6 @@ Performance and stability improvements on all platforms."""
       version = FileToText(TEST_CONFIG[VERSION_FILE])
       self.assertTrue(re.search(r"#define BUILD_NUMBER\s+6", version))
 
-    def TrunkBranchSideEffects():
-      """On 'git co -b new_branch svn/trunk', the ChangLog will be reset to its
-      original content."""
-      TextToFile(old_change_log, TEST_CONFIG[CHANGELOG_FILE])
-
     def CheckSVNCommit():
       commit = FileToText(TEST_CONFIG[COMMITMSG_FILE])
       self.assertEquals(
@@ -683,21 +674,6 @@ Performance and stability improvements on all platforms.""", commit)
       self.assertTrue(re.search(r"#define PATCH_LEVEL\s+0", version))
       self.assertTrue(re.search(r"#define IS_CANDIDATE_VERSION\s+0", version))
 
-      # Check that the change log on the trunk branch got correctly modified.
-      change_log = FileToText(TEST_CONFIG[CHANGELOG_FILE])
-      self.assertEquals(
-"""1999-07-31: Version 3.22.5
-
-        Log text 1 (issue 321).
-
-        Performance and stability improvements on all platforms.
-
-
-1999-04-05: Version 3.22.4
-
-        Performance and stability improvements on all platforms.\n""",
-          change_log)
-
     force_flag = " -f" if not manual else ""
     review_suffix = "\n\nTBR=reviewer@chromium.org" if not manual else ""
     self.ExpectGit([
@@ -734,14 +710,9 @@ Performance and stability improvements on all platforms.""", commit)
       Git(("log -1 --format=%H --grep=\"Prepare push to trunk.  "
            "Now working on version 3.22.6.\""),
           "hash1\n"),
-      # The ChangeLog file will be one of the files with differences between
-      # trunk and bleeding edge.
-      Git("diff --name-only svn/trunk hash1",
-          "file1\n%s\nfile2\n" % TEST_CONFIG[CHANGELOG_FILE]),
-      Git("diff svn/trunk hash1 file1 file2", "patch content"),
+      Git("diff svn/trunk hash1", "patch content\n"),
       Git("svn find-rev hash1", "123455\n"),
-      Git("checkout -b %s svn/trunk" % TEST_CONFIG[TRUNKBRANCH], "",
-          cb=TrunkBranchSideEffects),
+      Git("checkout -b %s svn/trunk" % TEST_CONFIG[TRUNKBRANCH], ""),
       Git("apply --index --reject \"%s\"" % TEST_CONFIG[PATCH_FILE], ""),
       Git("add \"%s\"" % TEST_CONFIG[VERSION_FILE], ""),
       Git("commit -aF \"%s\"" % TEST_CONFIG[COMMITMSG_FILE], "",