551 lines
24 KiB
Python
Executable File
551 lines
24 KiB
Python
Executable File
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import os
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import shutil
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import sha
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from os.path import join, getsize
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from stat import *
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import re
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import sys
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import getopt
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import time
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import datetime
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import bz2
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import string
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import tempfile
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class PatchInfo:
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""" Represents the meta-data associated with a patch
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work_dir = working dir where files are stored for this patch
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archive_files = list of files to include in this patch
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manifestv2 = set of manifest version 2 patch instructions
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manifestv3 = set of manifest version 3 patch instructions
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file_exclusion_list =
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files to exclude from this patch. names without slashes will be
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excluded anywhere in the directory hiearchy. names with slashes
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will only be excluded at that exact path
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"""
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def __init__(self, work_dir, file_exclusion_list, path_exclusion_list):
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self.work_dir=work_dir
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self.archive_files=[]
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self.manifestv2=[]
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self.manifestv3=[]
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self.file_exclusion_list=file_exclusion_list
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self.path_exclusion_list=path_exclusion_list
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def append_add_instruction(self, filename):
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""" Appends an add instruction for this patch.
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if filename starts with distribution/extensions/.*/ this will add an
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add-if instruction that will add the file if the parent directory
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of the file exists. This was ported from
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mozilla/tools/update-packaging/common.sh's make_add_instruction.
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"""
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m = re.match("((?:|.*/)distribution/extensions/.*)/", filename)
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if m:
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# Directory immediately following extensions is used for the test
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testdir = m.group(1)
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print ' add-if "'+testdir+'" "'+filename+'"'
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self.manifestv2.append('add-if "'+testdir+'" "'+filename+'"')
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self.manifestv3.append('add-if "'+testdir+'" "'+filename+'"')
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else:
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print ' add "'+filename+'"'
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self.manifestv2.append('add "'+filename+'"')
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self.manifestv3.append('add "'+filename+'"')
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def append_add_if_not_instruction(self, filename):
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""" Appends an add-if-not instruction to the version 3 manifest for this patch.
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This was ported from mozilla/tools/update-packaging/common.sh's
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make_add_if_not_instruction.
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"""
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print ' add-if-not "'+filename+'" "'+filename+'"'
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self.manifestv3.append('add-if-not "'+filename+'" "'+filename+'"')
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def append_patch_instruction(self, filename, patchname):
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""" Appends a patch instruction for this patch.
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filename = file to patch
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patchname = patchfile to apply to file
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if filename starts with distribution/extensions/.*/ this will add a
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patch-if instruction that will patch the file if the parent
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directory of the file exists. This was ported from
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mozilla/tools/update-packaging/common.sh's make_patch_instruction.
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"""
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m = re.match("((?:|.*/)distribution/extensions/.*)/", filename)
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if m:
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testdir = m.group(1)
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print ' patch-if "'+testdir+'" "'+patchname+'" "'+filename+'"'
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self.manifestv2.append('patch-if "'+testdir+'" "'+patchname+'" "'+filename+'"')
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self.manifestv3.append('patch-if "'+testdir+'" "'+patchname+'" "'+filename+'"')
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else:
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print ' patch "'+patchname+'" "'+filename+'"'
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self.manifestv2.append('patch "'+patchname+'" "'+filename+'"')
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self.manifestv3.append('patch "'+patchname+'" "'+filename+'"')
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def append_remove_instruction(self, filename):
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""" Appends an remove instruction for this patch.
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This was ported from
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mozilla/tools/update-packaging/common.sh/make_remove_instruction
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"""
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if filename.endswith("/"):
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print ' rmdir "'+filename+'"'
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self.manifestv2.append('rmdir "'+filename+'"')
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self.manifestv3.append('rmdir "'+filename+'"')
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elif filename.endswith("/*"):
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filename = filename[:-1]
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print ' rmrfdir "'+filename+'"'
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self.manifestv2.append('rmrfdir "'+filename+'"')
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self.manifestv3.append('rmrfdir "'+filename+'"')
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else:
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print ' remove "'+filename+'"'
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self.manifestv2.append('remove "'+filename+'"')
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self.manifestv3.append('remove "'+filename+'"')
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def create_manifest_files(self):
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""" Create the v2 manifest file in the root of the work_dir """
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manifest_file_path = os.path.join(self.work_dir,"updatev2.manifest")
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manifest_file = open(manifest_file_path, "wb")
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manifest_file.writelines("type \"partial\"\n")
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manifest_file.writelines(string.join(self.manifestv2, '\n'))
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manifest_file.writelines("\n")
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manifest_file.close()
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bzip_file(manifest_file_path)
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self.archive_files.append('"updatev2.manifest"')
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""" Create the v3 manifest file in the root of the work_dir """
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manifest_file_path = os.path.join(self.work_dir,"updatev3.manifest")
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manifest_file = open(manifest_file_path, "wb")
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manifest_file.writelines("type \"partial\"\n")
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manifest_file.writelines(string.join(self.manifestv3, '\n'))
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manifest_file.writelines("\n")
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manifest_file.close()
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bzip_file(manifest_file_path)
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self.archive_files.append('"updatev3.manifest"')
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def build_marfile_entry_hash(self, root_path):
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""" Iterates through the root_path, creating a MarFileEntry for each file
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and directory in that path. Excludes any filenames in the file_exclusion_list
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"""
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mar_entry_hash = {}
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filename_set = set()
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dirname_set = set()
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for root, dirs, files in os.walk(root_path):
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for name in files:
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# filename is the relative path from root directory
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partial_path = root[len(root_path)+1:]
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if name not in self.file_exclusion_list:
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filename = os.path.join(partial_path, name)
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if "/"+filename not in self.path_exclusion_list:
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mar_entry_hash[filename]=MarFileEntry(root_path, filename)
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filename_set.add(filename)
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for name in dirs:
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# dirname is the relative path from root directory
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partial_path = root[len(root_path)+1:]
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if name not in self.file_exclusion_list:
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dirname = os.path.join(partial_path, name)
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if "/"+dirname not in self.path_exclusion_list:
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dirname = dirname+"/"
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mar_entry_hash[dirname]=MarFileEntry(root_path, dirname)
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dirname_set.add(dirname)
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return mar_entry_hash, filename_set, dirname_set
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class MarFileEntry:
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"""Represents a file inside a Mozilla Archive Format (MAR)
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abs_path = abspath to the the file
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name = relative path within the mar. e.g.
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foo.mar/dir/bar.txt extracted into /tmp/foo:
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abs_path=/tmp/foo/dir/bar.txt
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name = dir/bar.txt
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"""
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def __init__(self, root, name):
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"""root = path the the top of the mar
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name = relative path within the mar"""
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self.name=name.replace("\\", "/")
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self.abs_path=os.path.join(root,name)
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self.sha_cache=None
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def __str__(self):
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return 'Name: %s FullPath: %s' %(self.name,self.abs_path)
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def calc_file_sha_digest(self, filename):
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""" Returns sha digest of given filename"""
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file_content = open(filename, 'r').read()
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return sha.new(file_content).digest()
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def sha(self):
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""" Returns sha digest of file repreesnted by this _marfile_entry"""
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if not self.sha_cache:
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self.sha_cache=self.calc_file_sha_digest(self.abs_path)
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return self.sha_cache
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def exec_shell_cmd(cmd):
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"""Execs shell cmd and raises an exception if the cmd fails"""
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if (os.system(cmd)):
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raise Exception, "cmd failed "+cmd
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def copy_file(src_file_abs_path, dst_file_abs_path):
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""" Copies src to dst creating any parent dirs required in dst first """
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dst_file_dir=os.path.dirname(dst_file_abs_path)
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if not os.path.exists(dst_file_dir):
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os.makedirs(dst_file_dir)
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# Copy the file over
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shutil.copy2(src_file_abs_path, dst_file_abs_path)
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def bzip_file(filename):
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""" Bzip's the file in place. The original file is replaced with a bzip'd version of itself
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assumes the path is absolute"""
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exec_shell_cmd('bzip2 -z9 "' + filename+'"')
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os.rename(filename+".bz2",filename)
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def bunzip_file(filename):
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""" Bzip's the file in palce. The original file is replaced with a bunzip'd version of itself.
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doesn't matter if the filename ends in .bz2 or not"""
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if not filename.endswith(".bz2"):
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os.rename(filename, filename+".bz2")
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filename=filename+".bz2"
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exec_shell_cmd('bzip2 -d "' + filename+'"')
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def extract_mar(filename, work_dir):
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""" Extracts the marfile intot he work_dir
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assumes work_dir already exists otherwise will throw osError"""
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print "Extracting "+filename+" to "+work_dir
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saved_path = os.getcwd()
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try:
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os.chdir(work_dir)
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exec_shell_cmd("mar -x "+filename)
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finally:
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os.chdir(saved_path)
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def create_partial_patch_for_file(from_marfile_entry, to_marfile_entry, shas, patch_info):
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""" Creates the partial patch file and manifest entry for the pair of files passed in
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"""
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if not (from_marfile_entry.sha(),to_marfile_entry.sha()) in shas:
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print 'diffing "'+from_marfile_entry.name+'\"'
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#bunzip to/from
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bunzip_file(from_marfile_entry.abs_path)
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bunzip_file(to_marfile_entry.abs_path)
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# The patch file will be created in the working directory with the
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# name of the file in the mar + .patch
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patch_file_abs_path = os.path.join(patch_info.work_dir,from_marfile_entry.name+".patch")
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patch_file_dir=os.path.dirname(patch_file_abs_path)
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if not os.path.exists(patch_file_dir):
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os.makedirs(patch_file_dir)
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# Create bzip'd patch file
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exec_shell_cmd("mbsdiff "+from_marfile_entry.abs_path+" "+to_marfile_entry.abs_path+" "+patch_file_abs_path)
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bzip_file(patch_file_abs_path)
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# Create bzip's full file
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full_file_abs_path = os.path.join(patch_info.work_dir, to_marfile_entry.name)
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shutil.copy2(to_marfile_entry.abs_path, full_file_abs_path)
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bzip_file(full_file_abs_path)
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if os.path.getsize(patch_file_abs_path) < os.path.getsize(full_file_abs_path):
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# Patch is smaller than file. Remove the file and add patch to manifest
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os.remove(full_file_abs_path)
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file_in_manifest_name = from_marfile_entry.name+".patch"
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file_in_manifest_abspath = patch_file_abs_path
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patch_info.append_patch_instruction(to_marfile_entry.name, file_in_manifest_name)
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else:
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# File is smaller than patch. Remove the patch and add file to manifest
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os.remove(patch_file_abs_path)
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file_in_manifest_name = from_marfile_entry.name
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file_in_manifest_abspath = full_file_abs_path
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patch_info.append_add_instruction(file_in_manifest_name)
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shas[from_marfile_entry.sha(),to_marfile_entry.sha()] = (file_in_manifest_name,file_in_manifest_abspath)
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patch_info.archive_files.append('"'+file_in_manifest_name+'"')
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else:
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filename, src_file_abs_path = shas[from_marfile_entry.sha(),to_marfile_entry.sha()]
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# We've already calculated the patch for this pair of files.
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if (filename.endswith(".patch")):
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# print "skipping diff: "+from_marfile_entry.name
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# Patch was smaller than file - add patch instruction to manifest
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file_in_manifest_name = to_marfile_entry.name+'.patch';
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patch_info.append_patch_instruction(to_marfile_entry.name, file_in_manifest_name)
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else:
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# File was smaller than file - add file to manifest
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file_in_manifest_name = to_marfile_entry.name
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patch_info.append_add_instruction(file_in_manifest_name)
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# Copy the pre-calculated file into our new patch work aread
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copy_file(src_file_abs_path, os.path.join(patch_info.work_dir, file_in_manifest_name))
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patch_info.archive_files.append('"'+file_in_manifest_name+'"')
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def create_add_patch_for_file(to_marfile_entry, patch_info):
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""" Copy the file to the working dir, add the add instruction, and add it to the list of archive files """
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copy_file(to_marfile_entry.abs_path, os.path.join(patch_info.work_dir, to_marfile_entry.name))
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patch_info.append_add_instruction(to_marfile_entry.name)
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patch_info.archive_files.append('"'+to_marfile_entry.name+'"')
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def create_add_if_not_patch_for_file(to_marfile_entry, patch_info):
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""" Copy the file to the working dir, add the add-if-not instruction, and add it to the list of archive files """
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copy_file(to_marfile_entry.abs_path, os.path.join(patch_info.work_dir, to_marfile_entry.name))
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patch_info.append_add_if_not_instruction(to_marfile_entry.name)
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patch_info.archive_files.append('"'+to_marfile_entry.name+'"')
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def process_explicit_remove_files(dir_path, patch_info):
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""" Looks for a 'removed-files' file in the dir_path. If the removed-files does not exist
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this will throw. If found adds the removed-files
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found in that file to the patch_info"""
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# Windows and linux have this file at the root of the dir
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list_file_path = os.path.join(dir_path, "removed-files")
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if not os.path.exists(list_file_path):
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list_file_path = os.path.join(dir_path, "Contents/Resources/removed-files")
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if (os.path.exists(list_file_path)):
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list_file = bz2.BZ2File(list_file_path,"r") # throws if doesn't exist
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lines = []
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for line in list_file:
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lines.append(line.strip())
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list_file.close()
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lines.sort(reverse=True)
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for line in lines:
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# Exclude any blank and comment lines.
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if line and not line.startswith("#"):
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# Python on windows uses \ for path separators and the update
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# manifests expects / for path separators on all platforms.
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line = line.replace("\\", "/")
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patch_info.append_remove_instruction(line)
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def create_partial_patch(from_dir_path, to_dir_path, patch_filename, shas, patch_info, forced_updates, add_if_not_list):
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""" Builds a partial patch by comparing the files in from_dir_path to those of to_dir_path"""
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# Cannocolize the paths for safey
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from_dir_path = os.path.abspath(from_dir_path)
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to_dir_path = os.path.abspath(to_dir_path)
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# Create a hashtable of the from and to directories
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from_dir_hash,from_file_set,from_dir_set = patch_info.build_marfile_entry_hash(from_dir_path)
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to_dir_hash,to_file_set,to_dir_set = patch_info.build_marfile_entry_hash(to_dir_path)
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# Create a list of the forced updates
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forced_list = forced_updates.strip().split('|')
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# Require that the precomplete file is included in the complete update
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if "precomplete" in to_file_set:
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forced_list.append("precomplete")
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elif "Contents/Resources/precomplete" in to_file_set:
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forced_list.append("Contents/Resources/precomplete")
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# The check with \ file separators allows tests for Mac to run on Windows
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elif "Contents\Resources\precomplete" in to_file_set:
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forced_list.append("Contents\Resources\precomplete")
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else:
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raise Exception, "missing precomplete file in: "+to_dir_path
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if "removed-files" in to_file_set:
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forced_list.append("removed-files")
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elif "Contents/Resources/removed-files" in to_file_set:
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forced_list.append("Contents/Resources/removed-files")
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# The check with \ file separators allows tests for Mac to run on Windows
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elif "Contents\Resources\\removed-files" in to_file_set:
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forced_list.append("Contents\Resources\\removed-files")
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else:
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raise Exception, "missing removed-files file in: "+to_dir_path
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# Files which exist in both sets need to be patched
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patch_filenames = list(from_file_set.intersection(to_file_set))
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patch_filenames.sort(reverse=True)
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for filename in patch_filenames:
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from_marfile_entry = from_dir_hash[filename]
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to_marfile_entry = to_dir_hash[filename]
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if os.path.basename(filename) in add_if_not_list:
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# This filename is in the add if not list, explicitly add-if-not
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create_add_if_not_patch_for_file(to_dir_hash[filename], patch_info)
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elif filename in forced_list:
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print 'Forcing "'+filename+'"'
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# This filename is in the forced list, explicitly add
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create_add_patch_for_file(to_dir_hash[filename], patch_info)
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else:
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if from_marfile_entry.sha() != to_marfile_entry.sha():
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# Not the same - calculate a patch
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create_partial_patch_for_file(from_marfile_entry, to_marfile_entry, shas, patch_info)
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# files in to_dir not in from_dir need to added
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add_filenames = list(to_file_set - from_file_set)
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add_filenames.sort(reverse=True)
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for filename in add_filenames:
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if os.path.basename(filename) in add_if_not_list:
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create_add_if_not_patch_for_file(to_dir_hash[filename], patch_info)
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else:
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create_add_patch_for_file(to_dir_hash[filename], patch_info)
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# files in from_dir not in to_dir need to be removed
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remove_filenames = list(from_file_set - to_file_set)
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remove_filenames.sort(reverse=True)
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for filename in remove_filenames:
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patch_info.append_remove_instruction(from_dir_hash[filename].name)
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process_explicit_remove_files(to_dir_path, patch_info)
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# directories in from_dir not in to_dir need to be removed
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remove_dirnames = list(from_dir_set - to_dir_set)
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remove_dirnames.sort(reverse=True)
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for dirname in remove_dirnames:
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patch_info.append_remove_instruction(from_dir_hash[dirname].name)
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# Construct the Manifest files
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patch_info.create_manifest_files()
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# And construct the mar
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mar_cmd = 'mar -C '+patch_info.work_dir+' -c output.mar '+string.join(patch_info.archive_files, ' ')
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exec_shell_cmd(mar_cmd)
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# Copy mar to final destination
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patch_file_dir = os.path.split(patch_filename)[0]
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if not os.path.exists(patch_file_dir):
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os.makedirs(patch_file_dir)
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shutil.copy2(os.path.join(patch_info.work_dir,"output.mar"), patch_filename)
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return patch_filename
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def usage():
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print "-h for help"
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||
print "-f for patchlist_file"
|
||
|
||
def get_buildid(work_dir):
|
||
""" extracts buildid from MAR
|
||
"""
|
||
ini = '%s/application.ini' % work_dir
|
||
if not os.path.exists(ini):
|
||
ini = '%s/Contents/Resources/application.ini' % work_dir
|
||
if not os.path.exists(ini):
|
||
print 'WARNING: application.ini not found, cannot find build ID'
|
||
return ''
|
||
|
||
file = bz2.BZ2File(ini)
|
||
for line in file:
|
||
if line.find('BuildID') == 0:
|
||
return line.strip().split('=')[1]
|
||
print 'WARNING: cannot find build ID in application.ini'
|
||
return ''
|
||
|
||
def decode_filename(filepath):
|
||
""" Breaks filename/dir structure into component parts based on regex
|
||
for example: firefox-3.0b3pre.en-US.linux-i686.complete.mar
|
||
Or linux-i686/en-US/firefox-3.0b3.complete.mar
|
||
Returns dict with keys product, version, locale, platform, type
|
||
"""
|
||
try:
|
||
m = re.search(
|
||
'(?P<product>\w+)(-)(?P<version>\w+\.\w+(\.\w+){0,2})(\.)(?P<locale>.+?)(\.)(?P<platform>.+?)(\.)(?P<type>\w+)(.mar)',
|
||
os.path.basename(filepath))
|
||
return m.groupdict()
|
||
except Exception, exc:
|
||
try:
|
||
m = re.search(
|
||
'(?P<platform>.+?)\/(?P<locale>.+?)\/(?P<product>\w+)-(?P<version>\w+\.\w+)\.(?P<type>\w+).mar',
|
||
filepath)
|
||
return m.groupdict()
|
||
except:
|
||
raise Exception("could not parse filepath %s: %s" % (filepath, exc))
|
||
|
||
def create_partial_patches(patches):
|
||
""" Given the patches generates a set of partial patches"""
|
||
shas = {}
|
||
|
||
work_dir_root = None
|
||
metadata = []
|
||
try:
|
||
work_dir_root = tempfile.mkdtemp('-fastmode', 'tmp', os.getcwd())
|
||
print "Building patches using work dir: %s" % (work_dir_root)
|
||
|
||
# Iterate through every patch set in the patch file
|
||
patch_num = 1
|
||
for patch in patches:
|
||
startTime = time.time()
|
||
|
||
from_filename,to_filename,patch_filename,forced_updates = patch.split(",")
|
||
from_filename,to_filename,patch_filename = os.path.abspath(from_filename),os.path.abspath(to_filename),os.path.abspath(patch_filename)
|
||
|
||
# Each patch iteration uses its own work dir
|
||
work_dir = os.path.join(work_dir_root,str(patch_num))
|
||
os.mkdir(work_dir)
|
||
|
||
# Extract from mar into from dir
|
||
work_dir_from = os.path.join(work_dir,"from");
|
||
os.mkdir(work_dir_from)
|
||
extract_mar(from_filename,work_dir_from)
|
||
from_decoded = decode_filename(from_filename)
|
||
from_buildid = get_buildid(work_dir_from)
|
||
from_shasum = sha.sha(open(from_filename).read()).hexdigest()
|
||
from_size = str(os.path.getsize(to_filename))
|
||
|
||
# Extract to mar into to dir
|
||
work_dir_to = os.path.join(work_dir,"to")
|
||
os.mkdir(work_dir_to)
|
||
extract_mar(to_filename, work_dir_to)
|
||
to_decoded = decode_filename(from_filename)
|
||
to_buildid = get_buildid(work_dir_to)
|
||
to_shasum = sha.sha(open(to_filename).read()).hexdigest()
|
||
to_size = str(os.path.getsize(to_filename))
|
||
|
||
mar_extract_time = time.time()
|
||
|
||
partial_filename = create_partial_patch(work_dir_from, work_dir_to, patch_filename, shas, PatchInfo(work_dir, ['update.manifest','updatev2.manifest','updatev3.manifest'],[]),forced_updates,['channel-prefs.js','update-settings.ini'])
|
||
partial_buildid = to_buildid
|
||
partial_shasum = sha.sha(open(partial_filename).read()).hexdigest()
|
||
partial_size = str(os.path.getsize(partial_filename))
|
||
|
||
metadata.append({
|
||
'to_filename': os.path.basename(to_filename),
|
||
'from_filename': os.path.basename(from_filename),
|
||
'partial_filename': os.path.basename(partial_filename),
|
||
'to_buildid':to_buildid,
|
||
'from_buildid':from_buildid,
|
||
'to_sha1sum':to_shasum,
|
||
'from_sha1sum':from_shasum,
|
||
'partial_sha1sum':partial_shasum,
|
||
'to_size':to_size,
|
||
'from_size':from_size,
|
||
'partial_size':partial_size,
|
||
'to_version':to_decoded['version'],
|
||
'from_version':from_decoded['version'],
|
||
'locale':from_decoded['locale'],
|
||
'platform':from_decoded['platform'],
|
||
})
|
||
print "done with patch %s/%s time (%.2fs/%.2fs/%.2fs) (mar/patch/total)" % (str(patch_num),str(len(patches)),mar_extract_time-startTime,time.time()-mar_extract_time,time.time()-startTime)
|
||
patch_num += 1
|
||
return metadata
|
||
finally:
|
||
# If we fail or get a ctrl-c during run be sure to clean up temp dir
|
||
if (work_dir_root and os.path.exists(work_dir_root)):
|
||
shutil.rmtree(work_dir_root)
|
||
|
||
def main(argv):
|
||
patchlist_file = None
|
||
try:
|
||
opts, args = getopt.getopt(argv, "hf:", ["help", "patchlist_file="])
|
||
for opt, arg in opts:
|
||
if opt in ("-h", "--help"):
|
||
usage()
|
||
sys.exit()
|
||
elif opt in ("-f", "--patchlist_file"):
|
||
patchlist_file = arg
|
||
except getopt.GetoptError:
|
||
usage()
|
||
sys.exit(2)
|
||
|
||
if not patchlist_file:
|
||
usage()
|
||
sys.exit(2)
|
||
|
||
patches = []
|
||
f = open(patchlist_file, 'r')
|
||
for line in f.readlines():
|
||
patches.append(line)
|
||
f.close()
|
||
create_partial_patches(patches)
|
||
|
||
if __name__ == "__main__":
|
||
main(sys.argv[1:])
|
||
|