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119 lines
5.1 KiB
Python
Executable File
119 lines
5.1 KiB
Python
Executable File
#!/usr/bin/python
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#
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# Copyright (C) 2013 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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"""Generate event interfaces .in file (EventInterfaces.in).
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The event interfaces .in file contains a list of all Event interfaces, i.e.,
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all interfaces that inherit from Event, including Event itself,
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together with certain extended attributes.
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Paths are in POSIX format, and relative to engine/.
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This list is used in core/ to generate EventFactory and EventNames.
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The .in format is documented in build/scripts/in_file.py.
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"""
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from optparse import OptionParser
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import os
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import posixpath
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import sys
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from utilities import get_file_contents, read_file_to_list, write_file, get_interface_extended_attributes_from_idl
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EXPORTED_EXTENDED_ATTRIBUTES = (
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'ImplementedAs',
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)
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module_path = os.path.dirname(os.path.realpath(__file__))
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source_dir = os.path.normpath(os.path.join(module_path, os.pardir, os.pardir))
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def parse_options():
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parser = OptionParser()
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parser.add_option('--event-idl-files-list', help='file listing event IDL files')
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parser.add_option('--event-interfaces-file', help='output file')
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parser.add_option('--write-file-only-if-changed', type='int', help='if true, do not write an output file if it would be identical to the existing one, which avoids unnecessary rebuilds in ninja')
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parser.add_option('--suffix', help='specify a suffix to the namespace, i.e., "Modules". Default is None.')
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options, args = parser.parse_args()
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if options.event_idl_files_list is None:
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parser.error('Must specify a file listing event IDL files using --event-idl-files-list.')
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if options.event_interfaces_file is None:
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parser.error('Must specify an output file using --event-interfaces-file.')
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if options.write_file_only_if_changed is None:
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parser.error('Must specify whether file is only written if changed using --write-file-only-if-changed.')
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options.write_file_only_if_changed = bool(options.write_file_only_if_changed)
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if args:
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parser.error('No arguments allowed, but %d given.' % len(args))
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return options
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def write_event_interfaces_file(event_idl_files, destination_filename, only_if_changed, suffix):
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def extended_attribute_string(name, value):
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return name + '=' + value
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def interface_line(full_path):
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relative_path_local, _ = os.path.splitext(os.path.relpath(full_path, source_dir))
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relative_path_posix = relative_path_local.replace(os.sep, posixpath.sep)
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idl_file_contents = get_file_contents(full_path)
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extended_attributes = get_interface_extended_attributes_from_idl(idl_file_contents)
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extended_attributes_list = [
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extended_attribute_string(name, extended_attributes[name])
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for name in EXPORTED_EXTENDED_ATTRIBUTES
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if name in extended_attributes]
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return '%s %s\n' % (relative_path_posix,
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', '.join(extended_attributes_list))
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lines = ['namespace="Event"\n']
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if suffix:
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lines.append('suffix="' + suffix + '"\n')
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lines.append('\n')
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interface_lines = [interface_line(event_idl_file)
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for event_idl_file in event_idl_files]
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interface_lines.sort()
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lines.extend(interface_lines)
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write_file(''.join(lines), destination_filename, only_if_changed)
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################################################################################
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def main():
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options = parse_options()
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event_idl_files = read_file_to_list(options.event_idl_files_list)
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write_event_interfaces_file(event_idl_files,
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options.event_interfaces_file,
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options.write_file_only_if_changed,
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options.suffix)
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if __name__ == '__main__':
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sys.exit(main())
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