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proton: Work around prefixes broken by unofficial builds

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Some unofficial builds running closer to upstream created a Documents ->
My Documents symlink. We would then create a My Documents -> Documents
symlink, resulting in infinite recursion. Detect this scenario and fix
it before merging user directories.
This commit is contained in:
Andrew Eikum 2021-08-19 10:12:07 -05:00
parent 0afcb19416
commit b5646c4072
1 changed files with 12 additions and 4 deletions
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16
proton
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@ -519,7 +519,7 @@ class CompatData:
if len(rel_dir) > 0:
rel_dir = rel_dir + "/"
dst_dir = src_dir.replace(g_proton.default_pfx_dir, self.prefix_dir, 1)
if not os.path.exists(dst_dir):
if not os.path.lexists(dst_dir):
os.makedirs(dst_dir)
tracked_files.write(rel_dir + "\n")
for dir_ in dirs:
@ -601,16 +601,24 @@ class CompatData:
#upgrade_pfx because Steam may drop cloud files here at any time.
for (old, new, link) in \
[
(self.prefix_dir + "drive_c/users/steamuser/Local Settings/Application Data",
("drive_c/users/steamuser/Local Settings/Application Data",
self.prefix_dir + "drive_c/users/steamuser/AppData/Local",
"../AppData/Local"),
(self.prefix_dir + "drive_c/users/steamuser/Application Data",
("drive_c/users/steamuser/Application Data",
self.prefix_dir + "drive_c/users/steamuser/AppData/Roaming",
"./AppData/Roaming"),
(self.prefix_dir + "drive_c/users/steamuser/My Documents",
("drive_c/users/steamuser/My Documents",
self.prefix_dir + "drive_c/users/steamuser/Documents",
"./Documents"),
]:
#running unofficial Proton/Wine builds against a Proton prefix could
#create an infinite symlink loop. detect this and clean it up.
if os.path.lexists(new) and os.path.islink(new) and os.readlink(new).endswith(old):
os.remove(new)
old = self.prefix_dir + old
if os.path.lexists(old) and not os.path.islink(old):
merge_user_dir(src=old, dst=new)
os.rename(old, old + " BACKUP")