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- # Copyright (c) 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.
- """Functions for discovering and clearing the build directory."""
- import os
- import sys
- def IsFileNewerThanFile(file_a, file_b):
- """Returns True if file_a's mtime is newer than file_b's."""
- def getmtime(f):
- try:
- return os.path.getmtime(f)
- except os.error:
- return 0
- return getmtime(file_a) >= getmtime(file_b)
- def AreNinjaFilesNewerThanXcodeFiles(src_dir=None):
- """Returns True if the generated ninja files are newer than the generated
- xcode files.
- Parameters:
- src_dir: The path to the src directory. If None, it's assumed to be
- at src/ relative to the current working directory.
- """
- src_dir = src_dir or 'src'
- ninja_path = os.path.join(src_dir, 'out', 'Release', 'build.ninja')
- xcode_path = os.path.join(
- src_dir, 'build', 'all.xcodeproj', 'project.pbxproj')
- return IsFileNewerThanFile(ninja_path, xcode_path)
- def GetBuildOutputDirectory(src_dir=None, cros_board=None):
- """Returns the path to the build directory, relative to the checkout root.
- Assumes that the current working directory is the checkout root.
- """
- # src_dir is only needed for compiling v8, which uses compile.py (but no other
- # of the build scripts), but its source root isn't "src" -- crbug.com/315004
- if src_dir is None:
- src_dir = 'src'
- if sys.platform.startswith('linux'):
- out_dirname = 'out'
- if cros_board:
- # Simple chrome workflow output (e.g., "out_x86-generic")
- out_dirname += '_%s' % (cros_board,)
- return os.path.join(src_dir, out_dirname)
- assert not cros_board, "'cros_board' not supported on this platform"
- if sys.platform == 'cygwin' or sys.platform.startswith('win') or (
- sys.platform == 'darwin'):
- return os.path.join(src_dir, 'out')
- raise NotImplementedError('Unexpected platform %s' % sys.platform)
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