[bus.git] / origin-src / transitfeed-1.2.6 / examples / filter_unused_stops.py
--- a/origin-src/transitfeed-1.2.6/examples/filter_unused_stops.py
+++ b/origin-src/transitfeed-1.2.6/examples/filter_unused_stops.py
@@ -1,1 +1,63 @@
+#!/usr/bin/python2.5
 
+# Copyright (C) 2007 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+"""Filter the unused stops out of a transit feed file."""
+
+import optparse
+import sys
+import transitfeed
+
+
+def main():
+  parser = optparse.OptionParser(
+      usage="usage: %prog [options] input_feed output_feed",
+      version="%prog "+transitfeed.__version__)
+  parser.add_option("-l", "--list_removed", dest="list_removed",
+                    default=False,
+                    action="store_true",
+                    help="Print removed stops to stdout")
+  (options, args) = parser.parse_args()
+  if len(args) != 2:
+    print >>sys.stderr, parser.format_help()
+    print >>sys.stderr, "\n\nYou must provide input_feed and output_feed\n\n"
+    sys.exit(2)
+  input_path = args[0]
+  output_path = args[1]
+
+  loader = transitfeed.Loader(input_path)
+  schedule = loader.Load()
+
+  print "Removing unused stops..."
+  removed = 0
+  for stop_id, stop in schedule.stops.items():
+    if not stop.GetTrips(schedule):
+      removed += 1
+      del schedule.stops[stop_id]
+      if options.list_removed:
+        print "Removing %s (%s)" % (stop_id, stop.stop_name)
+  if removed == 0:
+    print "No unused stops."
+  elif removed == 1:
+    print "Removed 1 stop"
+  else:
+    print "Removed %d stops" % removed
+
+  schedule.WriteGoogleTransitFeed(output_path)
+
+if __name__ == "__main__":
+  main()
+