Add a Repack tool to scons. This is used to compile linux resources

together (kind of like the windows RES builder).

I also moved the GRIT builder into the chromium site_scons since we
import it in lots of places.  This seems cleaner.

Review URL: http://codereview.chromium.org/21115


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@9331 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 55 insertions, 1 deletions

diff --git a/tools/data_pack/scons.py b/tools/data_pack/scons.py
new file mode 100644
index 0000000..6bd2d31
--- /dev/null
+++ b/tools/data_pack/scons.py
@@ -0,0 +1,54 @@
+#!/usr/bin/python
+#
+# Copyright (c) 2009 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.
+
+import sys
+
+def _SConsNodeToFile(file_node):
+  '''Convert a scons file Node object to a path on disk.'''
+  return str(file_node.rfile())
+
+
+def _Build(target, source, env):
+  '''Run the repack script.'''
+  data_pack_root_dir = env.subst('$CHROME_SRC_DIR/tools/data_pack')
+  sys.path.append(data_pack_root_dir)
+  import repack
+  sources = [_SConsNodeToFile(s) for s in source]
+  repack.RePack(_SConsNodeToFile(target[0]), sources)
+
+
+def _BuildStr(targets, sources, env):
+  '''This message gets printed each time the builder runs.'''
+  return "Repacking data files into %s" % str(targets[0].rfile())
+
+
+def _Scanner(file_node, env, path):
+  '''Repack files if repack.py or data_pack.py have changed.'''
+  data_pack_root_dir = env.subst('$CHROME_SRC_DIR/tools/data_pack')
+
+  files = []
+  for f in ('repack.py', 'data_pack.py'):
+    files.append(os.path.join(data_pack_root_dir, f))
+  return files
+
+
+#############################################################################
+## SCons Tool api methods below.
+def generate(env):
+  action = env.Action(_Build, _BuildStr)
+  scanner = env.Scanner(function=_Scanner, skeys=['.pak'])
+
+  builder = env.Builder(action=action,
+                        source_scanner=scanner,
+                        src_suffix='.pak')
+
+  # add our builder and scanner to the environment
+  env.Append(BUILDERS = {'Repack': builder})
+
+
+# Function name is mandated by newer versions of SCons.
+def exists(env):
+  return 1
diff --git a/tools/grit/grit/scons.py b/tools/grit/grit/scons.py
index f583698..6410e26 100644
--- a/tools/grit/grit/scons.py
+++ b/tools/grit/grit/scons.py
@@ -138,7 +138,7 @@ def _Scanner(file_node, env, path):
 
   # Add in the grit source files.  If one of these change, we want to re-run
   # grit.
-  grit_root_dir = os.path.split(os.path.abspath(__file__))[0]
+  grit_root_dir = env.subst('$CHROME_SRC_DIR/tools/grit')
   for root, dirs, filenames in os.walk(grit_root_dir):
     grit_src = [os.path.join(root, f) for f in filenames if f.endswith('.py')]
     files.extend(grit_src)