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      1 #!/usr/bin/python
      2 #
      3 # Copyright (C) 2009 Google Inc. All rights reserved.
      4 #
      5 # Redistribution and use in source and binary forms, with or without
      6 # modification, are permitted provided that the following conditions are
      7 # met:
      8 #
      9 #     * Redistributions of source code must retain the above copyright
     10 # notice, this list of conditions and the following disclaimer.
     11 #     * Redistributions in binary form must reproduce the above
     12 # copyright notice, this list of conditions and the following disclaimer
     13 # in the documentation and/or other materials provided with the
     14 # distribution.
     15 #     * Neither the name of Google Inc. nor the names of its
     16 # contributors may be used to endorse or promote products derived from
     17 # this software without specific prior written permission.
     18 #
     19 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30 #
     31 # Copyright (c) 2009 The Chromium Authors. All rights reserved.
     32 # Use of this source code is governed by a BSD-style license that can be
     33 # found in the LICENSE file.
     34 
     35 # usage:
     36 # action_useragentstylesheets.py OUTPUTS INPUTS -- MAINSCRIPT MODULES -- OPTIONS
     37 #
     38 # OUTPUTS must contain two items, in order: a path to UserAgentStyleSheets.h
     39 # and a path to UserAgentStyleSheetsData.cpp.
     40 # INPUTS contains one or more CSS files.
     41 #
     42 # MAINSCRIPT is the path to make-css-file-arrays.pl. MODULES may contain
     43 # multiple paths to additional perl modules.
     44 #
     45 # OPTIONS are passed as-is to MAINSCRIPT as additional arguments.
     46 
     47 
     48 import os
     49 import shlex
     50 import subprocess
     51 import sys
     52 
     53 
     54 def SplitArgsIntoSections(args):
     55     sections = []
     56     while len(args) > 0:
     57         if not '--' in args:
     58             # If there is no '--' left, everything remaining is an entire section.
     59             dashes = len(args)
     60         else:
     61             dashes = args.index('--')
     62 
     63         sections.append(args[:dashes])
     64 
     65         # Next time through the loop, look at everything after this '--'.
     66         if dashes + 1 == len(args):
     67             # If the '--' is at the end of the list, we won't come back through the
     68             # loop again. Add an empty section now corresponding to the nothingness
     69             # following the final '--'.
     70             args = []
     71             sections.append(args)
     72         else:
     73             args = args[dashes + 1:]
     74 
     75     return sections
     76 
     77 
     78 def main(args):
     79     sections = SplitArgsIntoSections(args[1:])
     80     assert len(sections) == 3
     81     (outputsInputs, scripts, options) = sections
     82 
     83     assert len(outputsInputs) >= 3
     84     outputH = outputsInputs[0]
     85     outputCpp = outputsInputs[1]
     86     styleSheets = outputsInputs[2:]
     87 
     88     assert len(scripts) >= 1
     89     makeCssFileArrays = scripts[0]
     90     perlModules = scripts[1:]
     91 
     92     includeDirs = []
     93     for perlModule in perlModules:
     94         includeDir = os.path.dirname(perlModule)
     95         if not includeDir in includeDirs:
     96             includeDirs.append(includeDir)
     97 
     98     # The defines come in as one flat string. Split it up into distinct arguments.
     99     if '--defines' in options:
    100         definesIndex = options.index('--defines')
    101         if definesIndex + 1 < len(options):
    102             splitOptions = shlex.split(options[definesIndex + 1])
    103             if splitOptions:
    104                 options[definesIndex + 1] = ' '.join(splitOptions)
    105 
    106     # Build up the command.
    107     command = ['perl']
    108     for includeDir in includeDirs:
    109         command.extend(['-I', includeDir])
    110     command.append(makeCssFileArrays)
    111     command.extend(options)
    112     command.extend([outputH, outputCpp])
    113     command.extend(styleSheets)
    114 
    115     # Do it. check_call is new in 2.5, so simulate its behavior with call and
    116     # assert.
    117     returnCode = subprocess.call(command)
    118     assert returnCode == 0
    119 
    120     return returnCode
    121 
    122 
    123 if __name__ == '__main__':
    124     sys.exit(main(sys.argv))
    125