| #!/usr/bin/env python |
| # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| '''Reads the Webkit Version.xcconfig file looking for MAJOR_VERSION and |
| MINOR_VERSION, emitting them into a webkit_version.h header file as |
| WEBKIT_MAJOR_VERSION and WEBKIT_MINOR_VERSION macros. |
| ''' |
| |
| import os |
| import re |
| import sys |
| |
| # Get the full path of the current script which would be something like |
| # src/webkit/build/webkit_version.py and navigate backwards twice to strip the |
| # last two path components to get to the srcroot. |
| # This is to ensure that the script can load the lastchange module by updating |
| # the sys.path variable with the desired location. |
| path = os.path.dirname(os.path.realpath(__file__)) |
| path = os.path.dirname(os.path.dirname(path)) |
| path = os.path.join(path, 'build', 'util') |
| |
| sys.path.insert(0, path) |
| import lastchange |
| |
| def ReadVersionFile(fname): |
| '''Reads the Webkit Version.xcconfig file looking for MAJOR_VERSION and |
| MINOR_VERSION. This function doesn't attempt to support the full syntax |
| of xcconfig files.''' |
| re_major = re.compile('MAJOR_VERSION\s*=\s*(\d+).*') |
| re_minor = re.compile('MINOR_VERSION\s*=\s*(\d+).*') |
| major = -1 |
| minor = -1 |
| f = open(fname, 'rb') |
| line = "not empty" |
| while line and not (major >= 0 and minor >= 0): |
| line = f.readline() |
| if major == -1: |
| match = re_major.match(line) |
| if match: |
| major = int(match.group(1)) |
| continue |
| if minor == -1: |
| match = re_minor.match(line) |
| if match: |
| minor = int(match.group(1)) |
| continue |
| assert(major >= 0 and minor >= 0) |
| return (major, minor) |
| |
| |
| def GetWebKitRevision(webkit_dir, version_file): |
| """Get the WebKit revision, in the form 'trunk@1234'.""" |
| |
| # "svn info" tells us what we want, but third_party/WebKit does *not* |
| # point at the upstream repo. So instead we run svn info on the directory |
| # containing the versioning file (which is some subdirectory of WebKit). |
| version_file_dir = os.path.dirname(version_file) |
| version_info = lastchange.FetchVersionInfo( |
| default_lastchange=None, |
| directory=os.path.join(webkit_dir, version_file_dir), |
| directory_regex_prior_to_src_url='webkit') |
| |
| if version_info.url == None: |
| version_info.url = 'Unknown URL' |
| version_info.url = version_info.url.strip('/') |
| |
| if version_info.revision == None: |
| version_info.revision = '0' |
| |
| return "%s@%s" % (version_info.url, version_info.revision) |
| |
| |
| def EmitVersionHeader(webkit_dir, version_file, output_dir): |
| '''Given webkit's version file, emit a header file that we can use from |
| within webkit_glue.cc. |
| ''' |
| |
| # See .gypi file for discussion of this workaround for the version file. |
| assert version_file[0] == '/' |
| version_file = version_file[1:] |
| |
| major, minor = ReadVersionFile(os.path.join(webkit_dir, version_file)) |
| |
| webkit_revision = GetWebKitRevision(webkit_dir, version_file) |
| |
| fname = os.path.join(output_dir, "webkit_version.h") |
| f = open(fname, 'wb') |
| template = """// webkit_version.h |
| // generated from %s |
| |
| #define WEBKIT_VERSION_MAJOR %d |
| #define WEBKIT_VERSION_MINOR %d |
| #define WEBKIT_SVN_REVISION "%s" |
| """ % (version_file, major, minor, webkit_revision) |
| f.write(template) |
| f.close() |
| return 0 |
| |
| |
| def main(): |
| return EmitVersionHeader(*sys.argv[1:]) |
| |
| |
| if __name__ == "__main__": |
| sys.exit(main()) |