Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 1 | # Copyright 2014 The Chromium 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 | import fnmatch |
| 6 | import glob |
| 7 | import os |
| 8 | import shutil |
| 9 | import sys |
| 10 | import tempfile |
| 11 | |
| 12 | from devil.utils import cmd_helper |
| 13 | from pylib import constants |
| 14 | from pylib.constants import host_paths |
| 15 | |
| 16 | |
| 17 | _ISOLATE_SCRIPT = os.path.join( |
| 18 | host_paths.DIR_SOURCE_ROOT, 'tools', 'swarming_client', 'isolate.py') |
| 19 | |
| 20 | |
| 21 | def DefaultPathVariables(): |
| 22 | return { |
| 23 | 'DEPTH': host_paths.DIR_SOURCE_ROOT, |
| 24 | 'PRODUCT_DIR': constants.GetOutDirectory(), |
| 25 | } |
| 26 | |
| 27 | |
| 28 | def DefaultConfigVariables(): |
| 29 | # Note: This list must match the --config-vars in build/isolate.gypi |
| 30 | return { |
| 31 | 'CONFIGURATION_NAME': constants.GetBuildType(), |
| 32 | 'OS': 'android', |
| 33 | 'asan': '0', |
| 34 | 'branding': 'Chromium', |
| 35 | 'chromeos': '0', |
| 36 | 'component': 'static_library', |
| 37 | 'enable_pepper_cdms': '0', |
| 38 | 'enable_plugins': '0', |
| 39 | 'fastbuild': '0', |
| 40 | 'icu_use_data_file_flag': '1', |
| 41 | 'kasko': '0', |
| 42 | 'lsan': '0', |
| 43 | 'msan': '0', |
| 44 | # TODO(maruel): This may not always be true. |
| 45 | 'target_arch': 'arm', |
| 46 | 'tsan': '0', |
| 47 | 'use_custom_libcxx': '0', |
| 48 | 'use_instrumented_libraries': '0', |
| 49 | 'use_prebuilt_instrumented_libraries': '0', |
| 50 | 'use_ozone': '0', |
| 51 | 'use_x11': '0', |
| 52 | 'v8_use_external_startup_data': '1', |
| 53 | 'msvs_version': '0', |
| 54 | } |
| 55 | |
| 56 | |
| 57 | def IsIsolateEmpty(isolate_path): |
| 58 | """Returns whether there are no files in the .isolate.""" |
| 59 | with open(isolate_path) as f: |
| 60 | return "'files': []" in f.read() |
| 61 | |
| 62 | |
| 63 | class Isolator(object): |
| 64 | """Manages calls to isolate.py for the android test runner scripts.""" |
| 65 | |
| 66 | def __init__(self): |
| 67 | self._isolate_deps_dir = tempfile.mkdtemp() |
| 68 | |
| 69 | @property |
| 70 | def isolate_deps_dir(self): |
| 71 | return self._isolate_deps_dir |
| 72 | |
| 73 | def Clear(self): |
| 74 | """Deletes the isolate dependency directory.""" |
| 75 | if os.path.exists(self._isolate_deps_dir): |
| 76 | shutil.rmtree(self._isolate_deps_dir) |
| 77 | |
| 78 | def Remap(self, isolate_abs_path, isolated_abs_path, |
| 79 | path_variables=None, config_variables=None): |
| 80 | """Remaps data dependencies into |self._isolate_deps_dir|. |
| 81 | |
| 82 | Args: |
| 83 | isolate_abs_path: The absolute path to the .isolate file, which specifies |
| 84 | data dependencies in the source tree. |
| 85 | isolated_abs_path: The absolute path to the .isolated file, which is |
| 86 | generated by isolate.py and specifies data dependencies in |
| 87 | |self._isolate_deps_dir| and their digests. |
| 88 | path_variables: A dict containing everything that should be passed |
| 89 | as a |--path-variable| to the isolate script. Defaults to the return |
| 90 | value of |DefaultPathVariables()|. |
| 91 | config_variables: A dict containing everything that should be passed |
| 92 | as a |--config-variable| to the isolate script. Defaults to the return |
| 93 | value of |DefaultConfigVariables()|. |
| 94 | Raises: |
| 95 | Exception if the isolate command fails for some reason. |
| 96 | """ |
| 97 | if not path_variables: |
| 98 | path_variables = DefaultPathVariables() |
| 99 | if not config_variables: |
| 100 | config_variables = DefaultConfigVariables() |
| 101 | |
| 102 | isolate_cmd = [ |
| 103 | sys.executable, _ISOLATE_SCRIPT, 'remap', |
| 104 | '--isolate', isolate_abs_path, |
| 105 | '--isolated', isolated_abs_path, |
| 106 | '--outdir', self._isolate_deps_dir, |
| 107 | ] |
| 108 | for k, v in path_variables.iteritems(): |
| 109 | isolate_cmd.extend(['--path-variable', k, v]) |
| 110 | for k, v in config_variables.iteritems(): |
| 111 | isolate_cmd.extend(['--config-variable', k, v]) |
| 112 | |
| 113 | exit_code, _ = cmd_helper.GetCmdStatusAndOutput(isolate_cmd) |
| 114 | if exit_code: |
| 115 | raise Exception('isolate command failed: %s' % ' '.join(isolate_cmd)) |
| 116 | |
| 117 | def VerifyHardlinks(self): |
| 118 | """Checks |isolate_deps_dir| for a hardlink. |
| 119 | |
| 120 | Returns: |
| 121 | True if a hardlink is found. |
| 122 | False if nothing is found. |
| 123 | Raises: |
| 124 | Exception if a non-hardlink is found. |
| 125 | """ |
| 126 | for root, _, filenames in os.walk(self._isolate_deps_dir): |
| 127 | if filenames: |
| 128 | linked_file = os.path.join(root, filenames[0]) |
| 129 | orig_file = os.path.join( |
| 130 | self._isolate_deps_dir, |
| 131 | os.path.relpath(linked_file, self._isolate_deps_dir)) |
| 132 | if os.stat(linked_file).st_ino == os.stat(orig_file).st_ino: |
| 133 | return True |
| 134 | else: |
| 135 | raise Exception('isolate remap command did not use hardlinks.') |
| 136 | return False |
| 137 | |
| 138 | def PurgeExcluded(self, deps_exclusion_list): |
| 139 | """Deletes anything on |deps_exclusion_list| from |self._isolate_deps_dir|. |
| 140 | |
| 141 | Args: |
| 142 | deps_exclusion_list: A list of globs to exclude from the isolate |
| 143 | dependency directory. |
| 144 | """ |
| 145 | excluded_paths = ( |
| 146 | x for y in deps_exclusion_list |
| 147 | for x in glob.glob( |
| 148 | os.path.abspath(os.path.join(self._isolate_deps_dir, y)))) |
| 149 | for p in excluded_paths: |
| 150 | if os.path.isdir(p): |
| 151 | shutil.rmtree(p) |
| 152 | else: |
| 153 | os.remove(p) |
| 154 | |
| 155 | @classmethod |
| 156 | def _DestructiveMerge(cls, src, dest): |
| 157 | if os.path.exists(dest) and os.path.isdir(dest): |
| 158 | for p in os.listdir(src): |
| 159 | cls._DestructiveMerge(os.path.join(src, p), os.path.join(dest, p)) |
| 160 | os.rmdir(src) |
| 161 | else: |
| 162 | shutil.move(src, dest) |
| 163 | |
| 164 | |
| 165 | def MoveOutputDeps(self): |
| 166 | """Moves files from the output directory to the top level of |
| 167 | |self._isolate_deps_dir|. |
| 168 | |
| 169 | Moves pak files from the output directory to to <isolate_deps_dir>/paks |
| 170 | Moves files from the product directory to <isolate_deps_dir> |
| 171 | """ |
| 172 | # On Android, all pak files need to be in the top-level 'paks' directory. |
| 173 | paks_dir = os.path.join(self._isolate_deps_dir, 'paks') |
| 174 | os.mkdir(paks_dir) |
| 175 | |
| 176 | deps_out_dir = os.path.join( |
| 177 | self._isolate_deps_dir, |
| 178 | os.path.relpath(os.path.join(constants.GetOutDirectory(), os.pardir), |
| 179 | host_paths.DIR_SOURCE_ROOT)) |
| 180 | for root, _, filenames in os.walk(deps_out_dir): |
| 181 | for filename in fnmatch.filter(filenames, '*.pak'): |
| 182 | shutil.move(os.path.join(root, filename), paks_dir) |
| 183 | |
| 184 | # Move everything in PRODUCT_DIR to top level. |
| 185 | deps_product_dir = os.path.join( |
| 186 | deps_out_dir, os.path.basename(constants.GetOutDirectory())) |
| 187 | if os.path.isdir(deps_product_dir): |
| 188 | for p in os.listdir(deps_product_dir): |
| 189 | Isolator._DestructiveMerge(os.path.join(deps_product_dir, p), |
| 190 | os.path.join(self._isolate_deps_dir, p)) |
| 191 | os.rmdir(deps_product_dir) |
| 192 | os.rmdir(deps_out_dir) |