mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
379 lines
16 KiB
Python
Executable File
379 lines
16 KiB
Python
Executable File
import os
|
||
import shutil
|
||
import sha
|
||
import sha
|
||
from os.path import join, getsize
|
||
from stat import *
|
||
import re
|
||
import sys
|
||
import getopt
|
||
import time
|
||
import datetime
|
||
import bz2
|
||
import string
|
||
import tempfile
|
||
|
||
class PatchInfo:
|
||
""" Represents the meta-data associated with a patch
|
||
work_dir = working dir where files are stored for this patch
|
||
archive_files = list of files to include in this patch
|
||
manifest = set of patch instructions
|
||
file_exclusion_list =
|
||
files to exclude from this patch. names without slashes will be
|
||
excluded anywhere in the directory hiearchy. names with slashes
|
||
will only be excluded at that exact path
|
||
"""
|
||
def __init__(self, work_dir, file_exclusion_list, path_exclusion_list):
|
||
self.work_dir=work_dir
|
||
self.archive_files=[]
|
||
self.manifest=[]
|
||
self.file_exclusion_list=file_exclusion_list
|
||
self.path_exclusion_list=path_exclusion_list
|
||
|
||
def append_add_instruction(self, filename):
|
||
""" Appends an add instruction for this patch.
|
||
if the filename starts with extensions/ adds an add-if instruction
|
||
to test the existence of the subdirectory. This was ported from
|
||
mozilla/tools/update-packaging/common.sh/make_add_instruction
|
||
"""
|
||
if filename.startswith("extensions/"):
|
||
testdir = "extensions/"+filename.split("/")[1] # Dir immediately following extensions is used for the test
|
||
self.manifest.append('add-if "'+testdir+'" "'+filename+'"')
|
||
else:
|
||
self.manifest.append('add "'+filename+'"')
|
||
|
||
def append_patch_instruction(self, filename, patchname):
|
||
""" Appends an patch instruction for this patch.
|
||
|
||
filename = file to patch
|
||
patchname = patchfile to apply to file
|
||
|
||
if the filename starts with extensions/ adds a patch-if instruction
|
||
to test the existence of the subdirectory.
|
||
if the filename starts with searchplugins/ add a add-if instruction for the filename
|
||
This was ported from
|
||
mozilla/tools/update-packaging/common.sh/make_patch_instruction
|
||
"""
|
||
if filename.startswith("extensions/"):
|
||
testdir = "extensions/"+filename.split("/")[1]
|
||
self.manifest.append('patch-if "'+testdir+'" "'+patchname+'" "'+filename+'"')
|
||
elif filename.startswith("searchplugins/"):
|
||
self.manifest.append('patch-if "'+filename+'" "'+patchname+'" "'+filename+'"')
|
||
else:
|
||
self.manifest.append('patch "'+patchname+'" "'+filename+'"')
|
||
|
||
def append_remove_instruction(self, filename):
|
||
""" Appends an remove instruction for this patch.
|
||
This was ported from
|
||
mozilla/tools/update-packaging/common.sh/make_remove_instruction
|
||
"""
|
||
self.manifest.append('remove "'+filename+'"')
|
||
|
||
def create_manifest_file(self):
|
||
""" Createst the manifest file into to the root of the work_dir """
|
||
manifest_file_path = os.path.join(self.work_dir,"update.manifest")
|
||
manifest_file = open(manifest_file_path, "w")
|
||
manifest_file.writelines(string.join(self.manifest, '\n'))
|
||
manifest_file.writelines("\n")
|
||
manifest_file.close()
|
||
|
||
bzip_file(manifest_file_path)
|
||
self.archive_files.append('"update.manifest"')
|
||
|
||
|
||
def build_marfile_entry_hash(self, root_path):
|
||
""" Iterates through the root_path, creating a MarFileEntry for each file
|
||
in that path. Excluseds any filenames in the file_exclusion_list
|
||
"""
|
||
mar_entry_hash = {}
|
||
filename_set = set()
|
||
for root, dirs, files in os.walk(root_path):
|
||
for name in files:
|
||
# filename is relative path from root directory
|
||
partial_path = root[len(root_path)+1:]
|
||
if name not in self.file_exclusion_list:
|
||
filename = os.path.join(partial_path, name)
|
||
if "/"+filename not in self.path_exclusion_list:
|
||
mar_entry_hash[filename]=MarFileEntry(root_path, filename)
|
||
filename_set.add(filename)
|
||
return mar_entry_hash, filename_set
|
||
|
||
|
||
class MarFileEntry:
|
||
"""Represents a file inside a Mozilla Archive Format (MAR)
|
||
abs_path = abspath to the the file
|
||
name = relative path within the mar. e.g.
|
||
foo.mar/dir/bar.txt extracted into /tmp/foo:
|
||
abs_path=/tmp/foo/dir/bar.txt
|
||
name = dir/bar.txt
|
||
"""
|
||
def __init__(self, root, name):
|
||
"""root = path the the top of the mar
|
||
name = relative path within the mar"""
|
||
self.name=name
|
||
self.abs_path=os.path.join(root,name)
|
||
self.sha_cache=None
|
||
|
||
def __str__(self):
|
||
return 'Name: %s FullPath: %s' %(self.name,self.abs_path)
|
||
|
||
def calc_file_sha_digest(self, filename):
|
||
""" Returns sha digest of given filename"""
|
||
file_content = open(filename, 'r').read()
|
||
return sha.new(file_content).digest()
|
||
|
||
def sha(self):
|
||
""" Returns sha digest of file repreesnted by this _marfile_entry"""
|
||
if not self.sha_cache:
|
||
self.sha_cache=self.calc_file_sha_digest(self.abs_path)
|
||
return self.sha_cache
|
||
|
||
def exec_shell_cmd(cmd):
|
||
"""Execs shell cmd and raises an exception if the cmd fails"""
|
||
if (os.system(cmd)):
|
||
raise Exception, "cmd failed "+cmd
|
||
|
||
|
||
def copy_file(src_file_abs_path, dst_file_abs_path):
|
||
""" Copies src to dst creating any parent dirs required in dst first """
|
||
dst_file_dir=os.path.dirname(dst_file_abs_path)
|
||
if not os.path.exists(dst_file_dir):
|
||
os.makedirs(dst_file_dir)
|
||
# Copy the file over
|
||
shutil.copy2(src_file_abs_path, dst_file_abs_path)
|
||
|
||
def bzip_file(filename):
|
||
""" Bzip's the file in place. The original file is replaced with a bzip'd version of itself
|
||
assumes the path is absolute"""
|
||
exec_shell_cmd('bzip2 -z9 "' + filename+'"')
|
||
os.rename(filename+".bz2",filename)
|
||
|
||
def bunzip_file(filename):
|
||
""" Bzip's the file in palce. The original file is replaced with a bunzip'd version of itself.
|
||
doesn't matter if the filename ends in .bz2 or not"""
|
||
if not filename.endswith(".bz2"):
|
||
os.rename(filename, filename+".bz2")
|
||
filename=filename+".bz2"
|
||
exec_shell_cmd('bzip2 -d "' + filename+'"')
|
||
|
||
|
||
def extract_mar(filename, work_dir):
|
||
""" Extracts the marfile intot he work_dir
|
||
assumes work_dir already exists otherwise will throw osError"""
|
||
print "Extracting "+filename+" to "+work_dir
|
||
saved_path = os.getcwd()
|
||
try:
|
||
os.chdir(work_dir)
|
||
exec_shell_cmd("mar -x "+filename)
|
||
finally:
|
||
os.chdir(saved_path)
|
||
|
||
def create_partial_patch_for_file(from_marfile_entry, to_marfile_entry, shas, patch_info):
|
||
""" Creates the partial patch file and manifest entry for the pair of files passed in
|
||
"""
|
||
if not (from_marfile_entry.sha(),to_marfile_entry.sha()) in shas:
|
||
print "diffing: " + from_marfile_entry.name
|
||
|
||
#bunzip to/from
|
||
bunzip_file(from_marfile_entry.abs_path)
|
||
bunzip_file(to_marfile_entry.abs_path)
|
||
|
||
# The patch file will be created in the working directory with the
|
||
# name of the file in the mar + .patch
|
||
patch_file_abs_path = os.path.join(patch_info.work_dir,from_marfile_entry.name+".patch")
|
||
patch_file_dir=os.path.dirname(patch_file_abs_path)
|
||
if not os.path.exists(patch_file_dir):
|
||
os.makedirs(patch_file_dir)
|
||
|
||
# Create bzip'd patch file
|
||
exec_shell_cmd("mbsdiff "+from_marfile_entry.abs_path+" "+to_marfile_entry.abs_path+" "+patch_file_abs_path)
|
||
bzip_file(patch_file_abs_path)
|
||
|
||
# Create bzip's full file
|
||
full_file_abs_path = os.path.join(patch_info.work_dir, to_marfile_entry.name)
|
||
shutil.copy2(to_marfile_entry.abs_path, full_file_abs_path)
|
||
bzip_file(full_file_abs_path)
|
||
|
||
## TOODO NEED TO ADD HANDLING FOR FORCED UPDATES
|
||
if os.path.getsize(patch_file_abs_path) < os.path.getsize(full_file_abs_path):
|
||
# Patch is smaller than file. Remove the file and add patch to manifest
|
||
os.remove(full_file_abs_path)
|
||
file_in_manifest_name = from_marfile_entry.name+".patch"
|
||
file_in_manifest_abspath = patch_file_abs_path
|
||
patch_info.append_patch_instruction(to_marfile_entry.name, file_in_manifest_name)
|
||
else:
|
||
# File is smaller than patch. Remove the patch and add file to manifest
|
||
os.remove(patch_file_abs_path)
|
||
file_in_manifest_name = from_marfile_entry.name
|
||
file_in_manifest_abspath = full_file_abs_path
|
||
patch_info.append_add_instruction(file_in_manifest_name)
|
||
|
||
shas[from_marfile_entry.sha(),to_marfile_entry.sha()] = (file_in_manifest_name,file_in_manifest_abspath)
|
||
patch_info.archive_files.append('"'+file_in_manifest_name+'"')
|
||
else:
|
||
print "skipping diff: " + from_marfile_entry.name
|
||
filename, src_file_abs_path = shas[from_marfile_entry.sha(),to_marfile_entry.sha()]
|
||
# We've already calculated the patch for this pair of files.
|
||
if (filename.endswith(".patch")):
|
||
# Patch was smaller than file - add patch instruction to manifest
|
||
file_in_manifest_name = to_marfile_entry.name+'.patch';
|
||
patch_info.append_patch_instruction(to_marfile_entry.name, file_in_manifest_name)
|
||
else:
|
||
# File was smaller than file - add file to manifest
|
||
file_in_manifest_name = to_marfile_entry.name
|
||
patch_info.append_add_instruction(file_in_manifest_name)
|
||
# Copy the pre-calculated file into our new patch work aread
|
||
copy_file(src_file_abs_path, os.path.join(patch_info.work_dir, file_in_manifest_name))
|
||
patch_info.archive_files.append('"'+file_in_manifest_name+'"')
|
||
|
||
def create_add_patch_for_file(to_marfile_entry, patch_info):
|
||
""" Copy the file to the working dir, add the add instruction, and add it to the list of archive files """
|
||
print "Adding New File " + to_marfile_entry.name
|
||
copy_file(to_marfile_entry.abs_path, os.path.join(patch_info.work_dir, to_marfile_entry.name))
|
||
patch_info.append_add_instruction(to_marfile_entry.name)
|
||
patch_info.archive_files.append('"'+to_marfile_entry.name+'"')
|
||
|
||
def process_explicit_remove_files(dir_path, patch_info):
|
||
""" Looks for a 'removed-files' file in the dir_path. If the removed-files does not exist
|
||
this will throw. If found adds the removed-files
|
||
found in that file to the patch_info"""
|
||
|
||
# Windows and linux have this file at the root of the dir
|
||
list_file_path = os.path.join(dir_path, "removed-files")
|
||
prefix=""
|
||
if not os.path.exists(list_file_path):
|
||
# Mac has is in Contents/MacOS/
|
||
prefix= "Contents/MacOS"
|
||
list_file_path = os.path.join(dir_path, prefix+"/removed-files")
|
||
|
||
if (os.path.exists(list_file_path)):
|
||
list_file = bz2.BZ2File(list_file_path,"r") # throws if doesn't exist
|
||
|
||
for line in list_file:
|
||
line = line.strip()
|
||
# Exclude any blank lines or any lines ending with a slash, which indicate
|
||
# directories. The updater doesn't know how to remove entire directories.
|
||
if line and not line.endswith("/"):
|
||
patch_info.append_remove_instruction(os.path.join(prefix,line))
|
||
|
||
def create_partial_patch(from_dir_path, to_dir_path, patch_filename, shas, patch_info):
|
||
""" Builds a partial patch by comparing the files in from_dir_path to thoes of to_dir_path"""
|
||
# Cannocolize the paths for safey
|
||
from_dir_path = os.path.abspath(from_dir_path)
|
||
to_dir_path = os.path.abspath(to_dir_path)
|
||
# First create a hashtable of the from and to directories
|
||
from_dir_hash,from_dir_set = patch_info.build_marfile_entry_hash(from_dir_path)
|
||
to_dir_hash,to_dir_set = patch_info.build_marfile_entry_hash(to_dir_path)
|
||
|
||
# Files which exist in both sets need to be patched
|
||
patch_filenames = list(from_dir_set.intersection(to_dir_set))
|
||
patch_filenames.sort()
|
||
for filename in patch_filenames:
|
||
from_marfile_entry = from_dir_hash[filename]
|
||
to_marfile_entry = to_dir_hash[filename]
|
||
if from_marfile_entry.sha() != to_marfile_entry.sha():
|
||
# Not the same - calculate a patch
|
||
create_partial_patch_for_file(from_marfile_entry, to_marfile_entry, shas, patch_info)
|
||
|
||
# files in from_dir not in to_dir need to be removed
|
||
remove_filenames = list(from_dir_set - to_dir_set)
|
||
remove_filenames.sort()
|
||
for filename in remove_filenames:
|
||
patch_info.append_remove_instruction(from_dir_hash[filename].name)
|
||
|
||
# files in to_dir not in from_dir need to added
|
||
add_filenames = list(to_dir_set - from_dir_set)
|
||
add_filenames.sort()
|
||
for filename in add_filenames:
|
||
create_add_patch_for_file(to_dir_hash[filename], patch_info)
|
||
|
||
process_explicit_remove_files(to_dir_path, patch_info)
|
||
|
||
# Construct Manifest file
|
||
patch_info.create_manifest_file()
|
||
|
||
# And construct the mar
|
||
mar_cmd = 'mar -C '+patch_info.work_dir+' -c output.mar '+string.join(patch_info.archive_files, ' ')
|
||
exec_shell_cmd(mar_cmd)
|
||
|
||
# Copy mar to final destination
|
||
patch_file_dir = os.path.split(patch_filename)[0]
|
||
if not os.path.exists(patch_file_dir):
|
||
os.makedirs(patch_file_dir)
|
||
shutil.copy2(os.path.join(patch_info.work_dir,"output.mar"), patch_filename)
|
||
|
||
def usage():
|
||
print "-h for help"
|
||
print "-f for patchlist_file"
|
||
|
||
def create_partial_patches(patch_list_file):
|
||
""" Given the patch_list_file generates a set of partial patches"""
|
||
patchlist_file = os.path.abspath(patch_list_file)
|
||
shas = {}
|
||
patches = []
|
||
f = open(patch_list_file, 'r')
|
||
for line in f.readlines():
|
||
patches.append(line)
|
||
f.close()
|
||
|
||
work_dir_root = None
|
||
try:
|
||
work_dir_root = tempfile.mkdtemp()
|
||
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)
|
||
|
||
# Extrat 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)
|
||
|
||
mar_extract_time = time.time()
|
||
|
||
create_partial_patch(work_dir_from, work_dir_to, patch_filename, shas, PatchInfo(work_dir, ['channel-prefs.js','update.manifest'],['/readme.txt']))
|
||
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
|
||
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_filename = arg
|
||
except getopt.GetoptError:
|
||
usage()
|
||
sys.exit(2)
|
||
|
||
if not patchlist_filename:
|
||
usage()
|
||
sys.exit(2)
|
||
|
||
create_partial_patches(patchlist_filename)
|
||
|
||
if __name__ == "__main__":
|
||
main(sys.argv[1:])
|
||
|