# 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)