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Viewing changes to Tools/Scripts/webkitpy/tool/steps/updatechromiumdeps.py

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2013-02-18 14:24:18 UTC
  • Revision ID: package-import@ubuntu.com-20130218142418-eon0jmjg3nj438uy
Tags: upstream-2.3
Import upstream version 2.3

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Tools/Scripts/webkitpy/tool/steps/updatechromiumdeps.py
 
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# Copyright (C) 2011 Google Inc. All rights reserved.
 
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#
 
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# Redistribution and use in source and binary forms, with or without
 
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# modification, are permitted provided that the following conditions are
 
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# met:
 
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#
 
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#     * Redistributions of source code must retain the above copyright
 
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# notice, this list of conditions and the following disclaimer.
 
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#     * Redistributions in binary form must reproduce the above
 
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# copyright notice, this list of conditions and the following disclaimer
 
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# in the documentation and/or other materials provided with the
 
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# distribution.
 
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#     * Neither the name of Google Inc. nor the names of its
 
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# contributors may be used to endorse or promote products derived from
 
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# this software without specific prior written permission.
 
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#
 
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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import logging
 
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import sys
 
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import urllib2
 
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from webkitpy.tool.steps.abstractstep import AbstractStep
 
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from webkitpy.tool.steps.options import Options
 
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from webkitpy.common.config import urls
 
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_log = logging.getLogger(__name__)
 
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class UpdateChromiumDEPS(AbstractStep):
 
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    @classmethod
 
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    def options(cls):
 
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        return AbstractStep.options() + [
 
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            Options.non_interactive,
 
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        ]
 
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    # Notice that this method throws lots of exciting exceptions!
 
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    def _fetch_last_known_good_revision(self):
 
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        return int(urllib2.urlopen(urls.chromium_lkgr_url).read())
 
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    def _validate_revisions(self, current_chromium_revision, new_chromium_revision):
 
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        if new_chromium_revision < current_chromium_revision:
 
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            message = "Current Chromium DEPS revision %s is newer than %s." % (current_chromium_revision, new_chromium_revision)
 
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            if self._options.non_interactive:
 
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                _log.error(message)
 
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                sys.exit(1)
 
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            _log.info(message)
 
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            new_chromium_revision = self._tool.user.prompt("Enter new chromium revision (enter nothing to cancel):\n")
 
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            try:
 
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                new_chromium_revision = int(new_chromium_revision)
 
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            except ValueError, TypeError:
 
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                new_chromium_revision = None
 
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            if not new_chromium_revision:
 
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                _log.error("Unable to update Chromium DEPS")
 
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                sys.exit(1)
 
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    def run(self, state):
 
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        # Note that state["chromium_revision"] must be defined, but can be None.
 
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        new_chromium_revision = state["chromium_revision"]
 
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        if not new_chromium_revision:
 
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            new_chromium_revision = self._fetch_last_known_good_revision()
 
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        deps = self._tool.checkout().chromium_deps()
 
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        current_chromium_revision = deps.read_variable("chromium_rev")
 
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        self._validate_revisions(current_chromium_revision, new_chromium_revision)
 
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        _log.info("Updating Chromium DEPS to %s" % new_chromium_revision)
 
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        deps.write_variable("chromium_rev", new_chromium_revision)