Port chromevox build to GN.

third_party/liblouis/copy_tables.py

+#!/usr/bin/env python
+# Copyright 2015 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.
+
+'''Copies the liblouis braille translation tables to a destination.'''
+
+import liblouis_list_tables
+import optparse
+import os
+import shutil
+
+
+def LinkOrCopyFiles(sources, dest_dir):
+  def LinkOrCopyOneFile(src, dst):
+    if os.path.exists(dst):
+      os.unlink(dst)
+    try:
+      os.link(src, dst)
+    except:
+      shutil.copy(src, dst)
+
+  if not os.path.exists(dest_dir):
+    os.makedirs(dest_dir)
+  for source in sources:
+    LinkOrCopyOneFile(source, os.path.join(dest_dir, os.path.basename(source)))
+
+
+def WriteDepfile(depfile, infiles):
+  stampfile = depfile + '.stamp'
+  with open(stampfile, 'w'):
+    os.utime(stampfile, None)
+  content = '%s: %s' % (stampfile, ' '.join(infiles))
+  open(depfile, 'w').write(content)
+
+
+
+def main():
+  parser = optparse.OptionParser(description=__doc__)
+  parser.add_option('-D', '--directory', dest='directories',
+                     action='append', help='Where to search for table files')
+  parser.add_option('-e', '--extra_file', dest='extra_files', action='append',
+                    default=[], help='Extra liblouis table file to process')
+  parser.add_option('-d', '--dest_dir', action='store', metavar='DIR',
+                    help=('Destination directory.  Used when translating ' +
+                          'input paths to output paths and when copying '
+                          'files.'))
+  parser.add_option('--depfile', metavar='FILENAME',
+                    help=('Store .d style dependencies in FILENAME and touch '
+                          'FILENAME.stamp after copying the files'))
+  options, args = parser.parse_args()
+
+  if len(args) != 1:
+    parser.error('Expecting exactly one argument')
+  if not options.directories:
+    parser.error('At least one --directory option must be specified')
+  if not options.dest_dir:
+    parser.error('At least one --dest_dir option must be specified')
+  files = liblouis_list_tables.GetTableFiles(args[0], options.directories,
+                                             options.extra_files)
+  LinkOrCopyFiles(files, options.dest_dir)
+  if options.depfile:
+    WriteDepfile(options.depfile, files)
+
+
+if __name__ == '__main__':
+  main()