1# Copyright 2015 the V8 project authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5
6import os
7import os.path
8
9
10def GetNinjaOutputDirectory(v8_root, configuration=None):
11  """Returns <v8_root>/<output_dir>/(Release|Debug).
12
13  The configuration chosen is the one most recently generated/built, but can be
14  overriden via the <configuration> parameter. Detects a custom output_dir
15  specified by GYP_GENERATOR_FLAGS."""
16
17  output_dir = 'out'
18  generator_flags = os.getenv('GYP_GENERATOR_FLAGS', '').split(' ')
19  for flag in generator_flags:
20    name_value = flag.split('=', 1)
21    if len(name_value) == 2 and name_value[0] == 'output_dir':
22      output_dir = name_value[1]
23
24  root = os.path.join(v8_root, output_dir)
25  if configuration:
26    return os.path.join(root, configuration)
27
28  debug_path = os.path.join(root, 'Debug')
29  release_path = os.path.join(root, 'Release')
30
31  def is_release_newer(test_path):
32    try:
33      debug_mtime = os.path.getmtime(os.path.join(debug_path, test_path))
34    except os.error:
35      debug_mtime = 0
36    try:
37      rel_mtime = os.path.getmtime(os.path.join(release_path, test_path))
38    except os.error:
39      rel_mtime = 0
40    return rel_mtime >= debug_mtime
41
42  if is_release_newer('.ninja_log') or is_release_newer('.ninja_deps'):
43    return release_path
44  return debug_path
45