Aegisub/tools/osx-fix-libs.py

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Python
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2019-10-07 02:53:57 +02:00
#!/usr/bin/env python3
import re
import sys
import os
import shutil
import stat
import subprocess
is_bad_lib = re.compile(r'(/usr/local|/opt)').match
is_sys_lib = re.compile(r'(/usr|/System)').match
otool_libname_extract = re.compile(r'\s+([/@].*?)[(\s:]').search
goodlist = []
badlist = []
badlist_orig = []
link_map = {}
def otool(cmdline):
with subprocess.Popen(['otool'] + cmdline, stdout=subprocess.PIPE,
encoding='utf-8') as p:
return p.stdout.readlines()
def get_rpath(lib):
info = otool(['-l', lib])
commands = []
command = []
for line in info:
line = line.strip()
if line.startswith("Load command "):
commands.append(command)
command = []
else:
command.append(line)
commands.append(command)
# yuck
return [line.split()[1] for command in commands if "cmd LC_RPATH" in command for line in command if line.startswith("path")]
def collectlibs(lib, masterlist, targetdir):
global goodlist, link_map
liblist = otool(['-L', lib])
locallist = []
for l in liblist:
l = otool_libname_extract(l)
if not l:
continue
l = l.group(1)
l_orig = l
if l.startswith("@rpath/"):
rpath = get_rpath(lib)
if not rpath:
print(f"{lib} uses @rpath but has no rpath set!")
exit(-1)
# all cases of libs using rpath so far just had a single directory in rpath...
# so let's just hope it stays that way and worry about the other cases when we get to them
if len(rpath) >= 2:
print(f"Warning: {lib} uses @rpath with more than one entry in rpath. Guessing one entry...")
l = os.path.join(rpath[0], l[len("@rpath/"):])
if l.startswith("@loader_path/"):
l = os.path.join(os.path.dirname(lib), l[len("@loader_path/"):])
if is_bad_lib(l):
if l not in badlist:
badlist.append(l)
if l_orig not in badlist_orig:
badlist_orig.append(l_orig)
if ((not is_sys_lib(l)) or is_bad_lib(l)) and l not in masterlist:
locallist.append(l)
print("found %s:" % l)
check = l
link_list = []
while check:
basename = os.path.basename(check)
target = os.path.join(targetdir, basename)
if os.path.islink(target):
# If a library was a symlink to a file with the same name in another directory,
# this could otherwise cause a FileNotFoundError
os.remove(target)
if os.path.isfile(check) and not os.path.islink(check):
try:
shutil.copy(check, target)
except PermissionError:
print(" FILE %s ... skipped" % check)
break
print(" FILE %s ... copied to target" % check)
if link_list:
for link in link_list:
link_map[link] = basename
break
if os.path.islink(check):
link_dst = os.readlink(check)
try:
os.symlink(link_dst, target)
except FileExistsError:
print(" LINK %s ... existed" % check)
break
print(" LINK %s ... copied to target" % check)
link_list.append(basename)
check = os.path.join(os.path.dirname(check), link_dst)
elif l not in goodlist and l not in masterlist:
goodlist.append(l)
masterlist.extend(locallist)
for l in locallist:
collectlibs(l, masterlist, targetdir)
if __name__ == '__main__':
binname = sys.argv[1]
targetdir = os.path.dirname(binname)
print("Searching for libraries in", binname, "...")
libs = [binname]
collectlibs(binname, libs, targetdir)
print()
print("System libraries used...")
goodlist.sort()
for l in goodlist:
print(l)
print()
print("Fixing library install names...")
in_tool_cmdline = ['install_name_tool']
for lib in badlist_orig:
libbase = os.path.basename(lib)
if libbase in link_map:
print("%s -> @executable_path/%s (REMAPPED)" % (lib, libbase))
libbase = link_map[libbase]
else:
print("%s -> @executable_path/%s" % (lib, libbase))
in_tool_cmdline = in_tool_cmdline + ['-change', lib,
'@executable_path/' + libbase]
for lib in libs:
libbase = os.path.basename(lib)
if libbase in link_map:
libbase = link_map[libbase]
targetlib = targetdir + '/' + libbase
orig_permission = os.stat(targetlib).st_mode
if not(orig_permission & stat.S_IWUSR):
os.chmod(targetlib, orig_permission | stat.S_IWUSR)
subprocess.run(in_tool_cmdline + ['-id', '@executable_path/' + libbase,
targetlib])
if not(orig_permission & stat.S_IWUSR):
os.chmod(targetlib, orig_permission)
if badlist:
print()
print("WARNING: The following libraries have blacklisted paths:")
for lib in sorted(badlist):
print(lib)
print(
"These paths normally have files from a package manager, which means that end result may not work if copied to another machine.")
print()
print("All done!")