Recurse into directories to find fonts. [DO NOT MERGE]

We now recurse into directories to find all fonts. This change is needed
to prevent having to list all fonts in external/google-fonts
individually.

As a side effect, we now only copy xml files over.

Change-Id: Ifdea3b8451878c2449ac7c5e17ef3d1b00d1b955
(cherry picked from commit c6364fd90de1600526d3431ce0740b6b856e48f0)

1 files changed, 11 insertions, 7 deletions

diff --git a/tools/layoutlib/rename_font/build_font.py b/tools/layoutlib/rename_font/build_font.py
index 7f01a13..aea3241 100755
--- a/tools/layoutlib/rename_font/build_font.py
+++ b/tools/layoutlib/rename_font/build_font.py
@@ -52,13 +52,17 @@ def main(argv):
   os.chdir(cwd)
   input_fonts = list()
   for src_dir in src_dirs:
-    for filename in os.listdir(src_dir):
-      if os.path.isdir(os.path.join(src_dir, filename)):
-        continue
-      if not os.path.splitext(filename)[1].lower() == '.ttf':
-        shutil.copy(os.path.join(src_dir, filename), dest_dir)
-        continue
-      input_fonts.append(os.path.join(src_dir, filename))
+    for dirname, dirnames, filenames in os.walk(src_dir):
+      for filename in filenames:
+          input_path = os.path.join(dirname, filename)
+          extension = os.path.splitext(filename)[1].lower()
+          if (extension == '.ttf'):
+            input_fonts.append(input_path)
+          elif (extension == '.xml'):
+            shutil.copy(input_path, dest_dir)
+      if '.git' in dirnames:
+          # don't go into any .git directories.
+          dirnames.remove('.git')
   # Create as many threads as the number of CPUs
   pool = Pool(processes=None)
   pool.map(convert_font, input_fonts)