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| 1 #!/usr/bin/python |
| 2 # |
| 3 # Copyright (C) 2013 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 """Generate event interfaces .in file (EventInterfaces.in). |
| 32 |
| 33 The event interfaces .in file contains a list of all Event interfaces, i.e., |
| 34 all interfaces that inherit from Event, including Event itself, |
| 35 together with certain extended attributes. |
| 36 |
| 37 Paths are in POSIX format, and relative to Source/. |
| 38 |
| 39 This list is used in core/ to generate EventFactory and EventNames. |
| 40 The .in format is documented in build/scripts/in_file.py. |
| 41 """ |
| 42 |
| 43 from optparse import OptionParser |
| 44 import os |
| 45 import posixpath |
| 46 import sys |
| 47 |
| 48 from utilities import get_file_contents, read_file_to_list, write_file, get_inte
rface_extended_attributes_from_idl |
| 49 |
| 50 EXPORTED_EXTENDED_ATTRIBUTES = ( |
| 51 'Conditional', |
| 52 'ImplementedAs', |
| 53 'RuntimeEnabled', |
| 54 ) |
| 55 module_path = os.path.dirname(os.path.realpath(__file__)) |
| 56 source_dir = os.path.normpath(os.path.join(module_path, os.pardir, os.pardir)) |
| 57 |
| 58 |
| 59 def parse_options(): |
| 60 parser = OptionParser() |
| 61 parser.add_option('--event-idl-files-list', help='file listing event IDL fil
es') |
| 62 parser.add_option('--event-interfaces-file', help='output file') |
| 63 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') |
| 64 parser.add_option('--suffix', help='specify a suffix to the namespace, i.e.,
"Modules". Default is None.') |
| 65 |
| 66 options, args = parser.parse_args() |
| 67 if options.event_idl_files_list is None: |
| 68 parser.error('Must specify a file listing event IDL files using --event-
idl-files-list.') |
| 69 if options.event_interfaces_file is None: |
| 70 parser.error('Must specify an output file using --event-interfaces-file.
') |
| 71 if options.write_file_only_if_changed is None: |
| 72 parser.error('Must specify whether file is only written if changed using
--write-file-only-if-changed.') |
| 73 options.write_file_only_if_changed = bool(options.write_file_only_if_changed
) |
| 74 if args: |
| 75 parser.error('No arguments allowed, but %d given.' % len(args)) |
| 76 return options |
| 77 |
| 78 |
| 79 def write_event_interfaces_file(event_idl_files, destination_filename, only_if_c
hanged, suffix): |
| 80 def extended_attribute_string(name, value): |
| 81 if name == 'RuntimeEnabled': |
| 82 value += 'Enabled' |
| 83 return name + '=' + value |
| 84 |
| 85 def interface_line(full_path): |
| 86 relative_path_local, _ = os.path.splitext(os.path.relpath(full_path, sou
rce_dir)) |
| 87 relative_path_posix = relative_path_local.replace(os.sep, posixpath.sep) |
| 88 |
| 89 idl_file_contents = get_file_contents(full_path) |
| 90 extended_attributes = get_interface_extended_attributes_from_idl(idl_fil
e_contents) |
| 91 extended_attributes_list = [ |
| 92 extended_attribute_string(name, extended_attributes[name]) |
| 93 for name in EXPORTED_EXTENDED_ATTRIBUTES |
| 94 if name in extended_attributes] |
| 95 |
| 96 return '%s %s\n' % (relative_path_posix, |
| 97 ', '.join(extended_attributes_list)) |
| 98 |
| 99 lines = ['namespace="Event"\n'] |
| 100 if suffix: |
| 101 lines.append('suffix="' + suffix + '"\n') |
| 102 lines.append('\n') |
| 103 interface_lines = [interface_line(event_idl_file) |
| 104 for event_idl_file in event_idl_files] |
| 105 interface_lines.sort() |
| 106 lines.extend(interface_lines) |
| 107 write_file(''.join(lines), destination_filename, only_if_changed) |
| 108 |
| 109 |
| 110 ################################################################################ |
| 111 |
| 112 def main(): |
| 113 options = parse_options() |
| 114 event_idl_files = read_file_to_list(options.event_idl_files_list) |
| 115 write_event_interfaces_file(event_idl_files, |
| 116 options.event_interfaces_file, |
| 117 options.write_file_only_if_changed, |
| 118 options.suffix) |
| 119 |
| 120 |
| 121 if __name__ == '__main__': |
| 122 sys.exit(main()) |
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