1 files changed, 63 insertions, 0 deletions
diff --git a/misc/tools/glyf-props.py b/misc/tools/glyf-props.py
new file mode 100755
index 000000000..8783a422d
--- /dev/null
+++ b/misc/tools/glyf-props.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+# encoding: utf8
+from __future__ import print_function
+import os, sys
+from argparse import ArgumentParser
+from robofab.objects.objectsRF import OpenFont
+
+
+dryRun = False
+
+def renameProps(font, renames):
+  for g in font:
+    for currname, newname in renames:
+      if currname in g.lib:
+        if newname in g.lib:
+          raise Exception('property %r already exist in glyph %r' % (newname, g))
+        g.lib[newname] = g.lib[currname]
+        del g.lib[currname]
+
+
+def main():
+  argparser = ArgumentParser(
+    description='Operate on UFO glyf "lib" properties')
+
+  argparser.add_argument(
+    '-dry', dest='dryRun', action='store_const', const=True, default=False,
+    help='Do not modify anything, but instead just print what would happen.')
+
+  argparser.add_argument(
+    '-m', dest='renameProps', metavar='<currentName>=<newName>[,...]', type=str,
+    help='Rename properties')
+
+  argparser.add_argument(
+    'fontPaths', metavar='<ufofile>', type=str, nargs='+', help='UFO fonts to update')
+
+  args = argparser.parse_args()
+  dryRun = args.dryRun
+
+  renames = []
+  if args.renameProps:
+    renames = [tuple(s.split('=')) for s in args.renameProps.split(',')]
+    # TODO: verify data structure
+    print('renaming properties:')
+    for rename in renames:
+      print('  %r => %r' % rename)
+
+  # Strip trailing slashes from font paths and iterate
+  for fontPath in [s.rstrip('/ ') for s in args.fontPaths]:
+    font = OpenFont(fontPath)
+
+    if len(renames):
+      print('Renaming properties in %s' % fontPath)
+      renameProps(font, renames)
+
+    if dryRun:
+      print('Saving changes to %s (dry run)' % fontPath)
+    if not dryRun:
+      print('Saving changes to %s' % fontPath)
+      font.save()
+
+
+if __name__ == '__main__':
+  main()