diff options
| -rwxr-xr-x | build/rmdir_and_stamp.py | 45 | ||||
| -rw-r--r-- | third_party/mojo/mojom_bindings_generator.gypi | 24 |
2 files changed, 69 insertions, 0 deletions
diff --git a/build/rmdir_and_stamp.py b/build/rmdir_and_stamp.py new file mode 100755 index 0000000..6aa11f8 --- /dev/null +++ b/build/rmdir_and_stamp.py @@ -0,0 +1,45 @@ +#!/usr/bin/env python +# Copyright (c) 2012 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. + +"""Wipes out a directory recursively and then touches a stamp file. + +This odd pairing of operations is used to support build scripts which +slurp up entire directories (e.g. build/android/javac.py when handling +generated sources) as inputs. + +The general pattern of use is: + + - Add a target which generates |gen_sources| into |out_path| from |inputs|. + - Include |stamp_file| as an input for that target or any of its rules which + generate files in |out_path|. + - Add an action which depends on |inputs| and which outputs |stamp_file|; + the action should run this script and pass |out_path| and |stamp_file| as + its arguments. + +The net result is that you will force |out_path| to be wiped and all +|gen_sources| to be regenerated any time any file in |inputs| changes. + +See //third_party/mojo/mojom_bindings_generator.gypi for an example use case. + +""" + +import errno +import os +import shutil +import sys + + +def Main(dst_dir, stamp_file): + try: + shutil.rmtree(os.path.normpath(dst_dir)) + except OSError as e: + # Ignore only "not found" errors. + if e.errno != errno.ENOENT: + raise e + with open(stamp_file, 'a'): + os.utime(stamp_file, None) + +if __name__ == '__main__': + sys.exit(Main(sys.argv[1], sys.argv[2])) diff --git a/third_party/mojo/mojom_bindings_generator.gypi b/third_party/mojo/mojom_bindings_generator.gypi index e58aab3..e18ab05 100644 --- a/third_party/mojo/mojom_bindings_generator.gypi +++ b/third_party/mojo/mojom_bindings_generator.gypi @@ -6,6 +6,24 @@ 'includes': [ 'mojom_bindings_generator_variables.gypi', ], + 'actions': [ + { + 'variables': { + 'java_out_dir': '<(PRODUCT_DIR)/java_mojo/<(_target_name)/src', + 'stamp_filename': '<(PRODUCT_DIR)/java_mojo/<(_target_name)/<(_target_name).stamp', + }, + 'action_name': '<(_target_name)_mojom_bindings_stamp', + # The java output directory is deleted to ensure that the java library + # doesn't try to compile stale files. + 'action': [ + 'python', '<(DEPTH)/build/rmdir_and_stamp.py', + '<(java_out_dir)', + '<(stamp_filename)', + ], + 'inputs': [ '<@(_sources)' ], + 'outputs': [ '<(stamp_filename)' ], + } + ], 'rules': [ { 'rule_name': '<(_target_name)_mojom_bindings_generator', @@ -18,9 +36,11 @@ '-I<(DEPTH)', '-I<(DEPTH)/third_party/mojo/src' ], + 'stamp_filename': '<(PRODUCT_DIR)/java_mojo/<(_target_name)/<(_target_name).stamp', }, 'inputs': [ '<@(mojom_bindings_generator_sources)', + '<(stamp_filename)', ], 'outputs': [ '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(RULE_INPUT_DIRNAME)/<(RULE_INPUT_ROOT).mojom.cc', @@ -59,6 +79,10 @@ 'generated_src_dirs': [ '<(PRODUCT_DIR)/java_mojo/<(_target_name)/src', ], + 'additional_input_paths': [ + '<@(mojom_bindings_generator_sources)', + '<@(_sources)', + ], }, }, 'hard_dependency': 1, |