Add cwd to all shell commands in auto roll scripts.

tools/push-to-trunk/push_to_trunk.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
 #       disclaimer in the documentation and/or other materials provided
 #       with the distribution.
 #     * Neither the name of Google Inc. nor the names of its
 #       contributors may be used to endorse or promote products derived
 #       from this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import argparse
+import os
 import sys
 import tempfile
 import urllib2
 
 from common_includes import *
 
 TRUNKBRANCH = "TRUNKBRANCH"
 
 CONFIG = {
   BRANCHNAME: "prepare-push",
@@ skipping 265 matching lines @@
 
   def RunStep(self):
     self.GitCreateBranch(self.Config(TRUNKBRANCH), "svn/trunk")
 
 
 class ApplyChanges(Step):
   MESSAGE = "Apply squashed changes."
 
   def RunStep(self):
     self.ApplyPatch(self.Config(PATCH_FILE))
-    Command("rm", "-f %s*" % self.Config(PATCH_FILE))
+    os.remove(self.Config(PATCH_FILE))
 
 
 class AddChangeLog(Step):
   MESSAGE = "Add ChangeLog changes to trunk branch."
 
   def RunStep(self):
     # The change log has been modified by the patch. Reset it to the version
     # on trunk and apply the exact changes determined by this PrepareChangeLog
     # step above.
     self.GitCheckoutFile(self.Config(CHANGELOG_FILE), "svn/trunk")
@@ skipping 12 matching lines @@
     # on trunk and apply the correct version.
     self.GitCheckoutFile(self.Config(VERSION_FILE), "svn/trunk")
     self.SetVersion(self.Config(VERSION_FILE), "new_")
 
 
 class CommitTrunk(Step):
   MESSAGE = "Commit to local trunk branch."
 
   def RunStep(self):
     self.GitCommit(file_name = self.Config(COMMITMSG_FILE))
-    Command("rm", "-f %s*" % self.Config(COMMITMSG_FILE))
+    os.remove(self.Config(COMMITMSG_FILE))
 
 
 class SanityCheck(Step):
   MESSAGE = "Sanity check."
 
   def RunStep(self):
     # TODO(machenbach): Run presubmit script here as it is now missing in the
     # prepare push process.
     if not self.Confirm("Please check if your local checkout is sane: Inspect "
         "%s, compile, run tests. Do you want to commit this new trunk "
@@ skipping 99 matching lines @@
       CommitTrunk,
       SanityCheck,
       CommitSVN,
       TagRevision,
       CleanUp,
     ]
 
 
 if __name__ == "__main__":  # pragma: no cover
   sys.exit(PushToTrunk(CONFIG).Run())