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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: action_useragentstylesheets.py OUTPUTS -- INPUTS
     36 #
     37 # Multiple OUTPUTS and INPUTS may be listed. The sections are separated by
     38 # -- arguments.
     39 #
     40 # OUTPUTS must contain two items, in order: a path to UserAgentStyleSheets.h
     41 # and a path to UserAgentStyleSheetsData.cpp.
     42 #
     43 # INPUTS must contain at least two items. The first item must be the path to
     44 # make-css-file-arrays.pl. The remaining items are paths to style sheets to
     45 # be fed to that script.
     46 
     47 
     48 import os
     49 import subprocess
     50 import sys
     51 
     52 
     53 def SplitArgsIntoSections(args):
     54     sections = []
     55     while len(args) > 0:
     56         if not '--' in args:
     57             # If there is no '--' left, everything remaining is an entire section.
     58             dashes = len(args)
     59         else:
     60             dashes = args.index('--')
     61 
     62         sections.append(args[:dashes])
     63 
     64         # Next time through the loop, look at everything after this '--'.
     65         if dashes + 1 == len(args):
     66             # If the '--' is at the end of the list, we won't come back through the
     67             # loop again. Add an empty section now corresponding to the nothingness
     68             # following the final '--'.
     69             args = []
     70             sections.append(args)
     71         else:
     72             args = args[dashes + 1:]
     73 
     74     return sections
     75 
     76 
     77 def main(args):
     78     sections = SplitArgsIntoSections(args[1:])
     79     assert len(sections) == 2
     80     (outputs, inputs) = sections
     81 
     82     assert len(outputs) == 2
     83     outputH = outputs[0]
     84     outputCpp = outputs[1]
     85 
     86     makeCssFileArrays = inputs[0]
     87     styleSheets = inputs[1:]
     88 
     89     # Build up the command.
     90     command = ['perl', makeCssFileArrays, outputH, outputCpp]
     91     command.extend(styleSheets)
     92 
     93     # Do it. check_call is new in 2.5, so simulate its behavior with call and
     94     # assert.
     95     returnCode = subprocess.call(command)
     96     assert returnCode == 0
     97 
     98     return returnCode
     99 
    100 
    101 if __name__ == '__main__':
    102     sys.exit(main(sys.argv))
    103