1 # Copyright (C) 2011 Google Inc. 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
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 disclaimer
11 # in the documentation and/or other materials provided with the
13 # * Neither the name of Google Inc. nor the names of its
14 # contributors may be used to endorse or promote products derived from
15 # this software without specific prior written permission.
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
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24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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31 from webkitpy.tool.steps.abstractstep import AbstractStep
32 from webkitpy.tool.steps.options import Options
33 from webkitpy.common.config import urls
34 from webkitpy.common.system.deprecated_logging import log, error
37 class UpdateChromiumDEPS(AbstractStep):
40 return AbstractStep.options() + [
41 Options.non_interactive,
44 # Notice that this method throws lots of exciting exceptions!
45 def _fetch_last_known_good_revision(self):
46 return int(urllib2.urlopen(urls.chromium_lkgr_url).read())
48 def _validate_revisions(self, current_chromium_revision, new_chromium_revision):
49 if new_chromium_revision < current_chromium_revision:
50 message = "Current Chromium DEPS revision %s is newer than %s." % (current_chromium_revision, new_chromium_revision)
51 if self._options.non_interactive:
52 error(message) # Causes the process to terminate.
54 new_chromium_revision = self._tool.user.prompt("Enter new chromium revision (enter nothing to cancel):\n")
56 new_chromium_revision = int(new_chromium_revision)
57 except ValueError, TypeError:
58 new_chromium_revision = None
59 if not new_chromium_revision:
60 error("Unable to update Chromium DEPS")
64 # Note that state["chromium_revision"] must be defined, but can be None.
65 new_chromium_revision = state["chromium_revision"]
66 if not new_chromium_revision:
67 new_chromium_revision = self._fetch_last_known_good_revision()
69 deps = self._tool.checkout().chromium_deps()
70 current_chromium_revision = deps.read_variable("chromium_rev")
71 self._validate_revisions(current_chromium_revision, new_chromium_revision)
72 log("Updating Chromium DEPS to %s" % new_chromium_revision)
73 deps.write_variable("chromium_rev", new_chromium_revision)