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Copy default prefix into place even if files are already present there

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Steam cloud sync places save files into pfx/ before proton is ever
invoked. Previously we would assume the prefix is valid if pfx/ exists
and run wine, which lead to very broken prefixes. Instead we should
check for files that cloud sync will never create (user.reg) and merge
the default prefix into any existing prefix tree.
This commit is contained in:
Andrew Eikum 2018-07-20 08:26:15 -05:00
parent 226e401dd3
commit 1846fe4260
1 changed files with 24 additions and 2 deletions
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proton
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@ -45,6 +45,28 @@ def makedirs(path):
#already exists
pass
def real_copy(src, dst):
if os.path.islink(src):
os.symlink(os.readlink(src), dst)
else:
shutil.copy(src,dst)
def mergedirs(src, dst):
for src_dir, dirs, files in os.walk(src):
dst_dir = src_dir.replace(src, dst, 1)
if not os.path.exists(dst_dir):
os.makedirs(dst_dir)
for dir_ in dirs:
src_file = os.path.join(src_dir, dir_)
dst_file = os.path.join(dst_dir, dir_)
if os.path.islink(src_file) and not os.path.exists(dst_file):
real_copy(src_file, dst_file)
for file_ in files:
src_file = os.path.join(src_dir, file_)
dst_file = os.path.join(dst_dir, file_)
if not os.path.exists(dst_file):
real_copy(src_file, dst_file)
if not ("STEAM_COMPAT_DATA_PATH" in os.environ):
log("No compat data path?")
sys.exit(1)
@ -140,9 +162,9 @@ else:
prefix_lock = FileLock(os.environ["STEAM_COMPAT_DATA_PATH"] + "/pfx.lock", timeout=-1)
with prefix_lock:
if not os.path.isdir(prefix):
if not os.path.exists(prefix + "/user.reg"):
#copy default prefix into place
shutil.copytree(basedir + "/dist/share/default_pfx", prefix, symlinks=True)
mergedirs(basedir + "/dist/share/default_pfx", prefix)
version_file = os.environ["STEAM_COMPAT_DATA_PATH"] + "/version"
if os.path.exists(version_file):