Proton/default_pfx.py

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#!/usr/bin/env python3
# usage: default_pfx.py path/to/default_pfx_dir path/to/dist
"Helper module for building the default prefix"
import os
import subprocess
import re
def file_is_wine_builtin_dll(path):
if not os.path.exists(path):
return False
try:
sfile = open(path, "rb")
sfile.seek(0x40)
tag = sfile.read(20)
return tag.startswith((b"Wine placeholder DLL", b"Wine builtin DLL"))
except IOError:
return False
def little_endian_bytes_to_uint(b):
result = 0
multiplier = 1
for i in b:
result += i * multiplier
multiplier <<= 8
return result
def dll_bitness(path):
if not os.path.exists(path):
return 0
try:
sfile = open(path, "rb")
sfile.seek(0x3c)
ntheader_ofs = little_endian_bytes_to_uint(sfile.read(4))
sfile.seek(0x18 + ntheader_ofs)
magic = sfile.read(2)
if magic == bytes((11, 1)):
return 32
if magic == bytes((11, 2)):
return 64
return 0
except IOError:
return 0
def make_relative_symlink(target, linkname):
target = os.path.abspath(target)
linkname = os.path.abspath(linkname)
rel = os.path.relpath(target, os.path.dirname(linkname))
os.symlink(rel, linkname)
def setup_dll_symlinks(default_pfx_dir, dist_dir):
skip_dlls = [ 'amd_ags_x64.dll' ]
for walk_dir, dirs, files in os.walk(default_pfx_dir):
for file_ in files:
filename = os.path.join(walk_dir, file_)
if file_ in skip_dlls:
continue
if os.path.isfile(filename) and file_is_wine_builtin_dll(filename):
bitness = dll_bitness(filename)
if bitness == 32:
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libdir = os.path.join(dist_dir, 'lib/wine/i386-windows')
elif bitness == 64:
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libdir = os.path.join(dist_dir, 'lib64/wine/x86_64-windows')
else:
continue
if os.path.exists(os.path.join(libdir, file_)):
target = os.path.join(libdir, file_)
else:
continue
os.unlink(filename)
make_relative_symlink(target, filename)
KEY_RE = re.compile(r'\[(.+)\] ([0-9]+)')
VALUE_RE = re.compile(r'"(.*)"="(.+)"')
def filter_registry(filename):
"""Remove registry values that contain a fully qualified path
inside some well-known registry keys. These paths are devised on
the build machine and it makes no sense to distribute them. Plus,
they are known to cause bugs."""
FILTER_KEYS = [
r'Software\\Microsoft\\Windows\\CurrentVersion\\Fonts',
r'Software\\Microsoft\\Windows NT\\CurrentVersion\\Fonts',
r'Software\\Wine\\Fonts\\External Fonts',
]
filtering = False
with open(filename) as fin:
with open(filename + '.tmp', 'w') as fout:
for line in fin:
line = line.strip()
match = KEY_RE.match(line)
if match is not None:
fout.write(line + '\n')
filtering = match.group(1) in FILTER_KEYS
continue
match = VALUE_RE.match(line)
if match is not None:
if not filtering or match.group(2)[1:2] != ':':
fout.write(line + '\n')
continue
fout.write(line + '\n')
os.rename(filename + '.tmp', filename)
#steampipe can't handle filenames with colons, so we remove them here
#and restore them in the proton script
def fixup_drive_links(default_pfx_dir):
for walk_dir, dirs, files in os.walk(os.path.join(default_pfx_dir, "dosdevices")):
for dir_ in dirs:
if ":" in dir_:
os.remove(os.path.join(walk_dir, dir_))
def make_default_pfx(default_pfx_dir, dist_dir):
local_env = dict(os.environ)
ld_path = dist_dir + "/lib64:" + dist_dir + "/lib"
local_env["LD_LIBRARY_PATH"] = ld_path
local_env["WINEPREFIX"] = default_pfx_dir
local_env["WINEDEBUG"] = "-all"
runtime_args = []
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subprocess.run(runtime_args + ["/bin/bash", "-c",
os.path.join(dist_dir, 'bin', 'wine') + " wineboot && " +
os.path.join(dist_dir, 'bin', 'wineserver') + " -w"],
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env=local_env, check=True)
setup_dll_symlinks(default_pfx_dir, dist_dir)
fixup_drive_links(default_pfx_dir)
filter_registry(os.path.join(default_pfx_dir, 'user.reg'))
filter_registry(os.path.join(default_pfx_dir, 'system.reg'))
if __name__ == '__main__':
import sys
make_default_pfx(sys.argv[1], sys.argv[2])