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      1 #!/usr/bin/env python
      2 # Copyright 2013 the V8 project authors. All rights reserved.
      3 # Redistribution and use in source and binary forms, with or without
      4 # modification, are permitted provided that the following conditions are
      5 # met:
      6 #
      7 #     * Redistributions of source code must retain the above copyright
      8 #       notice, this list of conditions and the following disclaimer.
      9 #     * Redistributions in binary form must reproduce the above
     10 #       copyright notice, this list of conditions and the following
     11 #       disclaimer in the documentation and/or other materials provided
     12 #       with the distribution.
     13 #     * Neither the name of Google Inc. nor the names of its
     14 #       contributors may be used to endorse or promote products derived
     15 #       from this software without specific prior written permission.
     16 #
     17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 
     29 import optparse
     30 import re
     31 import sys
     32 
     33 from common_includes import *
     34 
     35 CONFIG = {
     36   PERSISTFILE_BASENAME: "/tmp/v8-auto-roll-tempfile",
     37   DOT_GIT_LOCATION: ".git",
     38 }
     39 
     40 
     41 class Preparation(Step):
     42   MESSAGE = "Preparation."
     43 
     44   def RunStep(self):
     45     self.InitialEnvironmentChecks()
     46     self.CommonPrepare()
     47 
     48 
     49 class FetchLatestRevision(Step):
     50   MESSAGE = "Fetching latest V8 revision."
     51 
     52   def RunStep(self):
     53     log = self.Git("svn log -1 --oneline").strip()
     54     match = re.match(r"^r(\d+) ", log)
     55     if not match:
     56       self.Die("Could not extract current svn revision from log.")
     57     self.Persist("latest", match.group(1))
     58 
     59 
     60 class FetchLKGR(Step):
     61   MESSAGE = "Fetching V8 LKGR."
     62 
     63   def RunStep(self):
     64     lkgr_url = "https://v8-status.appspot.com/lkgr"
     65     # Retry several times since app engine might have issues.
     66     self.Persist("lkgr", self.ReadURL(lkgr_url, wait_plan=[5, 20, 300, 300]))
     67 
     68 
     69 class PushToTrunk(Step):
     70   MESSAGE = "Pushing to trunk if possible."
     71 
     72   def RunStep(self):
     73     self.RestoreIfUnset("latest")
     74     self.RestoreIfUnset("lkgr")
     75     latest = int(self._state["latest"])
     76     lkgr = int(self._state["lkgr"])
     77     if latest == lkgr:
     78       print "ToT (r%d) is clean. Pushing to trunk." % latest
     79       # TODO(machenbach): Call push to trunk script.
     80     else:
     81       print("ToT (r%d) is ahead of the LKGR (r%d). Skipping push to trunk."
     82             % (latest, lkgr))
     83 
     84 
     85 def RunAutoRoll(config,
     86                 options,
     87                 side_effect_handler=DEFAULT_SIDE_EFFECT_HANDLER):
     88   step_classes = [
     89     Preparation,
     90     FetchLatestRevision,
     91     FetchLKGR,
     92     PushToTrunk,
     93   ]
     94   RunScript(step_classes, config, options, side_effect_handler)
     95 
     96 
     97 def BuildOptions():
     98   result = optparse.OptionParser()
     99   result.add_option("-f", "--force", dest="f",
    100                     help="Don't prompt the user.",
    101                     default=True, action="store_true")
    102   result.add_option("-s", "--step", dest="s",
    103                     help="Specify the step where to start work. Default: 0.",
    104                     default=0, type="int")
    105   return result
    106 
    107 
    108 def Main():
    109   parser = BuildOptions()
    110   (options, args) = parser.parse_args()
    111   RunAutoRoll(CONFIG, options)
    112 
    113 if __name__ == "__main__":
    114   sys.exit(Main())
    115