Fix Mac fontconfig build (try 2)

third_party/fontconfig/process-template.py

Index: third_party/fontconfig/process-template.py
diff --git a/third_party/fontconfig/process-template.py b/third_party/fontconfig/process-template.py
new file mode 100755
index 0000000000000000000000000000000000000000..254586ddf6facb254262102d66462ac21ae67374
--- /dev/null
+++ b/third_party/fontconfig/process-template.py
@@ -0,0 +1,51 @@
+#!/usr/bin/python

[epoger, 2014/01/09 18:42:42]

Do the broken Trybot runs indicate a real problem with this CL?

[vandebo (ex-Chrome), 2014/01/09 19:24:32]

I don't think so.  The failures are in random .cc files.

+
+# Copyright 2014 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# A simple template processing script.
+
+import optparse
+import os
+import sys
+
+parser = optparse.OptionParser()
+parser.add_option('-i', '--input')
+parser.add_option('-o', '--output')
+parser.add_option(
+    '-k', '--keyword_substitution',  action='append', nargs=2,
+     metavar=('KEY', 'VALUE'), help='Changes KEY to VALUE in the template.')
+parser.add_option(
+    '-p', '--path_substitution', action='append', nargs=2,
+    metavar=('KEY', 'PATH'),
+    help='Makes PATH absolute then changes KEY to PATH in the template.')
+
+(args, junk) = parser.parse_args()

[epoger, 2014/01/09 18:42:42]

I think the preferred convention in Python is to use '_' as the variable name
when you are just throwing away a field.

See http://stackoverflow.com/questions/5893163/underscore-in-python

[vandebo (ex-Chrome), 2014/01/09 19:24:32]

Done.

+
+input = sys.stdin
+if args.input:
+  input = open(args.input, 'r')
+
+output = sys.stdout
+if args.output:
+  output = open(args.output, 'w')
+
+path_subs = None
+if args.path_substitution:
+  path_subs = [
+      [sub[0], os.path.abspath(sub[1])] for sub in args.path_substitution
+  ]
+
+for line in input:
+  if args.keyword_substitution:
+    for (key, value) in args.keyword_substitution:
+      line = line.replace(key, value)
+  if path_subs:
+    for (key, path) in path_subs:
+      line = line.replace(key, path)
+  output.write(line)
+
+input.close()
+output.close()