Installing ChromeOS font on developer Linux machine

Added call to a new script in:
build/install-build-deps.sh 
to download and install the ChromeOS default font
(Noto Sans UI). The installation is in:
/usr/local/share/fonts.
ChromeOS on Linux will use the font if present.
The installation creates (or recreates) a subdir:
"chromeos". In it it creates a .stamp file which is used
to avoid re-installation if it is already up to date.
It also creates a README file.

BUG=148945
TEST=manual;
One way to test is to instrument the file:
src/ui/gfx/platform_font_pango.cc
to log default_font_->GetFontName(); in ctor
PlatformFontPango::PlatformFontPango()
Expect:
W/out font installation: DejaVu Sans
With font installation: Noto Sans UI



Review URL: https://chromiumcodereview.appspot.com/12313039

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@184006 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 71 insertions, 0 deletions

diff --git a/build/linux/install-chromeos-fonts.py b/build/linux/install-chromeos-fonts.py
new file mode 100755
index 0000000..bb5f3c9
--- /dev/null
+++ b/build/linux/install-chromeos-fonts.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python
+# Copyright 2013 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.
+
+# Script to install the Chrome OS fonts on Linux.
+# This script can be run manually (as root), but is also run as part
+# install-build-deps.sh.
+
+import os
+import shutil
+import subprocess
+import sys
+
+URL_PREFIX = 'https://commondatastorage.googleapis.com'
+URL_DIR = 'chromeos-localmirror/distfiles'
+URL_FILE = 'notofonts-20121206.tar.gz'
+FONTS_DIR = '/usr/local/share/fonts'
+
+# The URL matches the URL in the ebuild script in chromiumos. See:
+#  /path/to/chromiumos/src/
+#  third_party/chromiumos-overlay/media-fonts/notofonts/
+#  notofonts-20121206.ebuild
+
+def main(args):
+  if not sys.platform.startswith('linux'):
+    print "Error: %s must be run on Linux." % __file__
+    return 1
+
+  if os.getuid() != 0:
+    print "Error: %s must be run as root." % __file__
+    return 1
+
+  if not os.path.isdir(FONTS_DIR):
+    print "Error: Destination directory does not exist: %s" % FONTS_DIR
+    return 1
+
+  dest_dir = os.path.join(FONTS_DIR, 'chromeos')
+
+  url = "%s/%s/%s" % (URL_PREFIX, URL_DIR, URL_FILE)
+
+  stamp = os.path.join(dest_dir, ".stamp")
+  if os.path.exists(stamp):
+    with open(stamp) as s:
+      if s.read() == url:
+        print "Chrome OS fonts already up-to-date in %s." % dest_dir
+        return 0
+
+  if os.path.isdir(dest_dir):
+    shutil.rmtree(dest_dir)
+  os.mkdir(dest_dir);
+
+  print "Installing Chrome OS fonts to %s." % dest_dir
+  tarball = os.path.join(dest_dir, URL_FILE)
+  subprocess.check_call(['curl', '-L', url, '-o', tarball])
+  subprocess.check_call(['tar', 'xf', tarball, '-C', dest_dir])
+  os.remove(tarball)
+
+  readme = os.path.join(dest_dir, "README")
+  with open(readme, 'w') as s:
+    s.write("This directory and its contents are auto-generated.\n")
+    s.write("It may be deleted and recreated. Do not modify.\n")
+    s.write("Script: %s\n" % __file__)
+
+  with open(stamp, 'w') as s:
+    s.write(url)
+
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))