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-rw-r--r--systrace/catapult/devil/devil/android/md5sum.py140
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diff --git a/systrace/catapult/devil/devil/android/md5sum.py b/systrace/catapult/devil/devil/android/md5sum.py
deleted file mode 100644
index e67f3f6..0000000
--- a/systrace/catapult/devil/devil/android/md5sum.py
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@@ -1,140 +0,0 @@
-# Copyright 2014 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.
-
-import base64
-import io
-import gzip
-import os
-import re
-
-import six
-
-from devil import devil_env
-from devil.android import device_errors
-from devil.utils import cmd_helper
-
-MD5SUM_DEVICE_LIB_PATH = '/data/local/tmp/md5sum'
-MD5SUM_DEVICE_BIN_PATH = MD5SUM_DEVICE_LIB_PATH + '/md5sum_bin'
-
-_STARTS_WITH_CHECKSUM_RE = re.compile(r'^[0-9a-fA-F]{16}$')
-
-# We need to cap how many paths we send to the md5_sum binaries at once because
-# the ARG_MAX on Android devices is relatively small, typically 131072 bytes.
-# However, the more paths we use per invocation, the lower the overhead of
-# starting processes, so we want to maximize this number, but we can't compute
-# it exactly as we don't know how well our paths will compress.
-# 5000 is experimentally determined to be reasonable. 10000 fails, and 7500
-# works with existing usage, so 5000 seems like a pretty safe compromise.
-_MAX_PATHS_PER_INVOCATION = 5000
-
-
-def CalculateHostMd5Sums(paths):
- """Calculates the MD5 sum value for all items in |paths|.
-
- Directories are traversed recursively and the MD5 sum of each file found is
- reported in the result.
-
- Args:
- paths: A list of host paths to md5sum.
- Returns:
- A dict mapping file paths to their respective md5sum checksums.
- """
- if isinstance(paths, six.string_types):
- paths = [paths]
- paths = list(paths)
-
- md5sum_bin_host_path = devil_env.config.FetchPath('md5sum_host')
- if not os.path.exists(md5sum_bin_host_path):
- raise IOError('File not built: %s' % md5sum_bin_host_path)
- out = ""
- for i in range(0, len(paths), _MAX_PATHS_PER_INVOCATION):
- mem_file = io.BytesIO()
- compressed = gzip.GzipFile(fileobj=mem_file, mode="wb")
- data = ";".join(
- [os.path.realpath(p) for p in paths[i:i+_MAX_PATHS_PER_INVOCATION]])
- if six.PY3:
- data = data.encode('utf-8')
- compressed.write(data)
- compressed.close()
- compressed_paths = base64.b64encode(mem_file.getvalue())
- out += cmd_helper.GetCmdOutput(
- [md5sum_bin_host_path, "-gz", compressed_paths])
-
- return dict(zip(paths, out.splitlines()))
-
-
-def CalculateDeviceMd5Sums(paths, device):
- """Calculates the MD5 sum value for all items in |paths|.
-
- Directories are traversed recursively and the MD5 sum of each file found is
- reported in the result.
-
- Args:
- paths: A list of device paths to md5sum.
- Returns:
- A dict mapping file paths to their respective md5sum checksums.
- """
- if not paths:
- return {}
-
- if isinstance(paths, six.string_types):
- paths = [paths]
- paths = list(paths)
-
- md5sum_dist_path = devil_env.config.FetchPath('md5sum_device', device=device)
-
- if os.path.isdir(md5sum_dist_path):
- md5sum_dist_bin_path = os.path.join(md5sum_dist_path, 'md5sum_bin')
- else:
- md5sum_dist_bin_path = md5sum_dist_path
-
- if not os.path.exists(md5sum_dist_path):
- raise IOError('File not built: %s' % md5sum_dist_path)
- md5sum_file_size = os.path.getsize(md5sum_dist_bin_path)
-
- # For better performance, make the script as small as possible to try and
- # avoid needing to write to an intermediary file (which RunShellCommand will
- # do if necessary).
- md5sum_script = 'a=%s;' % MD5SUM_DEVICE_BIN_PATH
- # Check if the binary is missing or has changed (using its file size as an
- # indicator), and trigger a (re-)push via the exit code.
- md5sum_script += '! [[ $(ls -l $a) = *%d* ]]&&exit 2;' % md5sum_file_size
- # Make sure it can find libbase.so
- md5sum_script += 'export LD_LIBRARY_PATH=%s;' % MD5SUM_DEVICE_LIB_PATH
- for i in range(0, len(paths), _MAX_PATHS_PER_INVOCATION):
- mem_file = io.BytesIO()
- compressed = gzip.GzipFile(fileobj=mem_file, mode="wb")
- data = ";".join(paths[i:i+_MAX_PATHS_PER_INVOCATION])
- if six.PY3:
- data = data.encode('utf-8')
- compressed.write(data)
- compressed.close()
- compressed_paths = base64.b64encode(mem_file.getvalue())
- md5sum_script += '$a -gz %s;' % compressed_paths
- try:
- out = device.RunShellCommand(
- md5sum_script, shell=True, check_return=True, large_output=True)
- except device_errors.AdbShellCommandFailedError as e:
- # Push the binary only if it is found to not exist
- # (faster than checking up-front).
- if e.status == 2:
- # If files were previously pushed as root (adbd running as root), trying
- # to re-push as non-root causes the push command to report success, but
- # actually fail. So, wipe the directory first.
- device.RunShellCommand(['rm', '-rf', MD5SUM_DEVICE_LIB_PATH],
- as_root=True,
- check_return=True)
- if os.path.isdir(md5sum_dist_path):
- device.adb.Push(md5sum_dist_path, MD5SUM_DEVICE_LIB_PATH)
- else:
- mkdir_cmd = 'a=%s;[[ -e $a ]] || mkdir $a' % MD5SUM_DEVICE_LIB_PATH
- device.RunShellCommand(mkdir_cmd, shell=True, check_return=True)
- device.adb.Push(md5sum_dist_bin_path, MD5SUM_DEVICE_BIN_PATH)
-
- out = device.RunShellCommand(
- md5sum_script, shell=True, check_return=True, large_output=True)
- else:
- raise
-
- return dict(zip(paths, [l for l in out if _STARTS_WITH_CHECKSUM_RE.match(l)]))