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| 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 collections | |
| 6 import logging | |
| 7 import os | |
| 8 import re | |
| 9 import tempfile | |
| 10 import types | |
| 11 | |
| 12 from pylib import cmd_helper | |
| 13 from pylib import constants | |
| 14 from pylib.utils import device_temp_file | |
| 15 | |
| 16 MD5SUM_DEVICE_LIB_PATH = '/data/local/tmp/md5sum/' | |
| 17 MD5SUM_DEVICE_BIN_PATH = MD5SUM_DEVICE_LIB_PATH + 'md5sum_bin' | |
| 18 | |
| 19 MD5SUM_DEVICE_SCRIPT_FORMAT = ( | |
| 20 'test -f {path} -o -d {path} ' | |
| 21 '&& LD_LIBRARY_PATH={md5sum_lib} {md5sum_bin} {path}') | |
| 22 | |
| 23 _STARTS_WITH_CHECKSUM_RE = re.compile(r'^\s*[0-9a-fA-F]{32}\s+') | |
| 24 | |
| 25 | |
| 26 def CalculateHostMd5Sums(paths): | |
| 27 """Calculates the MD5 sum value for all items in |paths|. | |
| 28 | |
| 29 Directories are traversed recursively and the MD5 sum of each file found is | |
| 30 reported in the result. | |
| 31 | |
| 32 Args: | |
| 33 paths: A list of host paths to md5sum. | |
| 34 Returns: | |
| 35 A dict mapping file paths to their respective md5sum checksums. | |
| 36 """ | |
| 37 if isinstance(paths, basestring): | |
| 38 paths = [paths] | |
| 39 | |
| 40 md5sum_bin_host_path = os.path.join( | |
| 41 constants.GetOutDirectory(), 'md5sum_bin_host') | |
| 42 if not os.path.exists(md5sum_bin_host_path): | |
| 43 raise IOError('File not built: %s' % md5sum_bin_host_path) | |
| 44 out = cmd_helper.GetCmdOutput([md5sum_bin_host_path] + [p for p in paths]) | |
| 45 | |
| 46 return _ParseMd5SumOutput(out.splitlines()) | |
| 47 | |
| 48 | |
| 49 def CalculateDeviceMd5Sums(paths, device): | |
| 50 """Calculates the MD5 sum value for all items in |paths|. | |
| 51 | |
| 52 Directories are traversed recursively and the MD5 sum of each file found is | |
| 53 reported in the result. | |
| 54 | |
| 55 Args: | |
| 56 paths: A list of device paths to md5sum. | |
| 57 Returns: | |
| 58 A dict mapping file paths to their respective md5sum checksums. | |
| 59 """ | |
| 60 if isinstance(paths, basestring): | |
| 61 paths = [paths] | |
| 62 | |
| 63 if not device.FileExists(MD5SUM_DEVICE_BIN_PATH): | |
| 64 md5sum_dist_path = os.path.join(constants.GetOutDirectory(), 'md5sum_dist') | |
| 65 if not os.path.exists(md5sum_dist_path): | |
| 66 raise IOError('File not built: %s' % md5sum_dist_path) | |
| 67 device.adb.Push(md5sum_dist_path, MD5SUM_DEVICE_LIB_PATH) | |
| 68 | |
| 69 out = [] | |
| 70 | |
| 71 with tempfile.NamedTemporaryFile() as md5sum_script_file: | |
| 72 with device_temp_file.DeviceTempFile( | |
| 73 device.adb) as md5sum_device_script_file: | |
| 74 md5sum_script = ( | |
| 75 MD5SUM_DEVICE_SCRIPT_FORMAT.format( | |
| 76 path=p, md5sum_lib=MD5SUM_DEVICE_LIB_PATH, | |
| 77 md5sum_bin=MD5SUM_DEVICE_BIN_PATH) | |
| 78 for p in paths) | |
| 79 md5sum_script_file.write('; '.join(md5sum_script)) | |
| 80 md5sum_script_file.flush() | |
| 81 device.adb.Push(md5sum_script_file.name, md5sum_device_script_file.name) | |
| 82 out = device.RunShellCommand(['sh', md5sum_device_script_file.name]) | |
| 83 | |
| 84 return _ParseMd5SumOutput(out) | |
| 85 | |
| 86 | |
| 87 def _ParseMd5SumOutput(out): | |
| 88 hash_and_path = (l.split(None, 1) for l in out | |
| 89 if l and _STARTS_WITH_CHECKSUM_RE.match(l)) | |
| 90 return dict((p, h) for h, p in hash_and_path) | |
| 91 | |
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Chromium Code Reviews
Issue 2392643003:
Removes files from //build that we don't need (Closed)
