| # 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 AreNinjaFilesNewerThanMSVSFiles(src_dir=None): |
| """Returns True if the generated ninja files are newer than the generated |
| msvs 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') |
| msvs_path = os.path.join(src_dir, 'build', 'all.sln') |
| return IsFileNewerThanFile(ninja_path, msvs_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 == 'darwin': |
| if AreNinjaFilesNewerThanXcodeFiles(src_dir): |
| return os.path.join(src_dir, 'out') |
| return os.path.join(src_dir, 'xcodebuild') |
| |
| if sys.platform == 'cygwin' or sys.platform.startswith('win'): |
| if AreNinjaFilesNewerThanMSVSFiles(src_dir): |
| return os.path.join(src_dir, 'out') |
| return os.path.join(src_dir, 'build') |
| |
| raise NotImplementedError('Unexpected platform %s' % sys.platform) |
| |
| |
| def RmtreeExceptNinjaOrGomaFiles(build_output_dir): |
| """Recursively removes everything but ninja files from a build directory.""" |
| for root, _, files in os.walk(build_output_dir, topdown=False): |
| for f in files: |
| # For .manifest in particular, gyp windows ninja generates manifest |
| # files at generation time but clobber nukes at the beginning of |
| # compile, so make sure not to delete those generated files, otherwise |
| # compile will fail. |
| if (f.endswith('.ninja') or f.endswith('.manifest') or |
| f == 'args.gn' or f == 'mb_type' or f == 'runtime_deps' or |
| f.startswith('msvc') or # VS runtime DLLs. |
| f.startswith('pgort') or # VS PGO runtime DLL. |
| f.startswith('vccorlib') or # VS2015 core libraries. |
| f.startswith('vcruntime') or # VS2015 runtime libraries. |
| f.startswith('ucrtbase') or # Win runtime DLLs for VS. |
| f.startswith('api-ms-win') or # Win runtime DLLs for VS. |
| f in ('gyp-mac-tool', 'gyp-win-tool', |
| 'environment.x86', 'environment.x64')): |
| continue |
| # Keep goma related files. |
| if f == '.goma_deps': |
| continue |
| os.unlink(os.path.join(root, f)) |
| # Delete the directory if empty; this works because the walk is bottom-up. |
| try: |
| os.rmdir(root) |
| except OSError, e: |
| if e.errno in (39, 41, 66): |
| # If the directory isn't empty, ignore it. |
| # On Windows, os.rmdir will raise WindowsError with winerror 145, |
| # which e.errno is 41. |
| # On Linux, e.errno is 39. |
| pass |
| else: |
| raise |