Revision: 20168
Author:   [email protected]
Date:     Fri Mar 21 15:04:54 2014 UTC
Log:      Let auto-roll push the lkgr.

BUG=
[email protected]

Review URL: https://codereview.chromium.org/205703004
http://code.google.com/p/v8/source/detail?r=20168

Modified:
 /branches/bleeding_edge/tools/push-to-trunk/auto_roll.py
 /branches/bleeding_edge/tools/push-to-trunk/test_scripts.py

=======================================
--- /branches/bleeding_edge/tools/push-to-trunk/auto_roll.py Fri Mar 21 12:15:25 2014 UTC +++ /branches/bleeding_edge/tools/push-to-trunk/auto_roll.py Fri Mar 21 15:04:54 2014 UTC
@@ -44,6 +44,8 @@
   SETTINGS_LOCATION: "~/.auto-roll",
 }

+PUSH_MESSAGE_RE = re.compile(r".* \(based on bleeding_edge revision r(\d+)\)$")
+

 class Preparation(Step):
   MESSAGE = "Preparation."
@@ -77,42 +79,40 @@
                % self["tree_message"])


-class FetchLatestRevision(Step):
-  MESSAGE = "Fetching latest V8 revision."
+class FetchLKGR(Step):
+  MESSAGE = "Fetching V8 LKGR."

   def RunStep(self):
-    match = re.match(r"^r(\d+) ", self.GitSVNLog())
-    if not match:  # pragma: no cover
-      self.Die("Could not extract current svn revision from log.")
-    self["latest"] = match.group(1)
+    lkgr_url = "https://v8-status.appspot.com/lkgr";
+    # Retry several times since app engine might have issues.
+    self["lkgr"] = self.ReadURL(lkgr_url, wait_plan=[5, 20, 300, 300])


 class CheckLastPush(Step):
   MESSAGE = "Checking last V8 push to trunk."

   def RunStep(self):
-    last_push_hash = self.FindLastTrunkPush()
-    last_push = int(self.GitSVNFindSVNRev(last_push_hash))
+    last_push = self.FindLastTrunkPush()
+
+    # Retrieve the bleeding edge revision of the last push from the text in
+    # the push commit message.
+    last_push_title = self.GitLog(n=1, format="%s", git_hash=last_push)
+    last_push_be = PUSH_MESSAGE_RE.match(last_push_title).group(1)
+
+    if not last_push_be:  # pragma: no cover
+ self.Die("Could not retrieve bleeding edge revision for trunk push %s"
+               % last_push)

     # TODO(machenbach): This metric counts all revisions. It could be
     # improved by counting only the revisions on bleeding_edge.
-    if int(self["latest"]) - last_push < 10:  # pragma: no cover
+    if int(self["lkgr"]) - int(last_push_be) < 10:  # pragma: no cover
# This makes sure the script doesn't push twice in a row when the cron
       # job retries several times.
-      self.Die("Last push too recently: %d" % last_push)
-
-
-class FetchLKGR(Step):
-  MESSAGE = "Fetching V8 LKGR."
-
-  def RunStep(self):
-    lkgr_url = "https://v8-status.appspot.com/lkgr";
-    # Retry several times since app engine might have issues.
-    self["lkgr"] = self.ReadURL(lkgr_url, wait_plan=[5, 20, 300, 300])
+      self.Die("Last push too recently: %s" % last_push_be)


 class PushToTrunk(Step):
-  MESSAGE = "Pushing to trunk if possible."
+  MESSAGE = "Pushing to trunk if specified."

   def PushTreeStatus(self, message):
     if not self._options.status_password:
@@ -129,26 +129,21 @@
                  wait_plan=[5, 20])

   def RunStep(self):
-    latest = int(self["latest"])
-    lkgr = int(self["lkgr"])
-    if latest == lkgr:
-      print "ToT (r%d) is clean. Pushing to trunk." % latest
-      self.PushTreeStatus("Tree is closed (preparing to push)")
+    print "Pushing lkgr %s to trunk." % self["lkgr"]
+    self.PushTreeStatus("Tree is closed (preparing to push)")

-      # TODO(machenbach): Update the script before calling it.
-      try:
-        if self._options.push:
-          P = push_to_trunk.PushToTrunk
-          self._side_effect_handler.Call(
-              P(push_to_trunk.CONFIG, self._side_effect_handler).Run,
-              ["-a", self._options.author,
-               "-r", self._options.reviewer,
-               "-f"])
-      finally:
-        self.PushTreeStatus(self["tree_message"])
-    else:
-      print("ToT (r%d) is ahead of the LKGR (r%d). Skipping push to trunk."
-            % (latest, lkgr))
+    # TODO(machenbach): Update the script before calling it.
+    try:
+      if self._options.push:
+        P = push_to_trunk.PushToTrunk
+        self._side_effect_handler.Call(
+            P(push_to_trunk.CONFIG, self._side_effect_handler).Run,
+            ["-author", self._options.author,
+             "-reviewer", self._options.reviewer,
+             "-revision", self["lkgr"],
+             "-force"])
+    finally:
+      self.PushTreeStatus(self["tree_message"])


 class AutoRoll(ScriptsBase):
@@ -173,9 +168,8 @@
       Preparation,
       CheckAutoRollSettings,
       CheckTreeStatus,
-      FetchLatestRevision,
+      FetchLKGR,
       CheckLastPush,
-      FetchLKGR,
       PushToTrunk,
     ]

=======================================
--- /branches/bleeding_edge/tools/push-to-trunk/test_scripts.py Fri Mar 21 12:15:25 2014 UTC +++ /branches/bleeding_edge/tools/push-to-trunk/test_scripts.py Fri Mar 21 15:04:54 2014 UTC
@@ -33,7 +33,6 @@

 import auto_roll
 from auto_roll import CheckLastPush
-from auto_roll import FetchLatestRevision
 from auto_roll import SETTINGS_LOCATION
 import common_includes
 from common_includes import *
@@ -832,11 +831,15 @@

   def testCheckLastPushRecently(self):
     self.ExpectGit([
-      Git("svn log -1 --oneline", "r101 | Text"),
- Git("svn log -1 --oneline ChangeLog", "r99 | Prepare push to trunk..."),
+      Git(("log -1 --format=%H --grep="
+           "\"^Version [[:digit:]]*\.[[:digit:]]*\.[[:digit:]]* (based\" "
+           "svn/trunk"), "hash2\n"),
+      Git("log -1 --format=%s hash2",
+          "Version 3.4.5 (based on bleeding_edge revision r99)\n"),
     ])

-    self.RunStep(auto_roll.AutoRoll, FetchLatestRevision, AUTO_ROLL_ARGS)
+    self._state["lkgr"] = "101"
+
     self.assertRaises(Exception, lambda: self.RunStep(auto_roll.AutoRoll,
                                                       CheckLastPush,
                                                       AUTO_ROLL_ARGS))
@@ -864,11 +867,11 @@
       Git("status -s -uno", ""),
       Git("status -s -b -uno", "## some_branch\n"),
       Git("svn fetch", ""),
-      Git("svn log -1 --oneline", "r100 | Text"),
       Git(("log -1 --format=%H --grep=\""
            "^Version [[:digit:]]*\.[[:digit:]]*\.[[:digit:]]* (based\""
            " svn/trunk"), "push_hash\n"),
-      Git("svn find-rev push_hash", "65"),
+      Git("log -1 --format=%s push_hash",
+          "Version 3.4.5 (based on bleeding_edge revision r79)\n"),
     ])

     auto_roll.AutoRoll(TEST_CONFIG, self).Run(
@@ -878,7 +881,6 @@
                                   % TEST_CONFIG[PERSISTFILE_BASENAME]))

     self.assertEquals("100", state["lkgr"])
-    self.assertEquals("100", state["latest"])

   def testAutoRollStoppedBySettings(self):
     TEST_CONFIG[DOT_GIT_LOCATION] = self.MakeEmptyTempFile()

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