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proton: Add write permissions to copied files

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We copy some read-only files into the prefix, which can cause problems
(specifically, downgrading to some earlier Proton versions).
This commit is contained in:
Andrew Eikum 2020-09-15 11:37:32 -05:00
parent b1b12f8c4f
commit 746cab7813
1 changed files with 12 additions and 3 deletions
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proton
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@ -10,6 +10,7 @@ import json
import os
import shutil
import errno
import stat
import subprocess
import sys
import tarfile
@ -54,15 +55,23 @@ def makedirs(path):
#already exists
pass
def try_copy(src, dst):
def try_copy(src, dst, add_write_perm=True):
try:
if os.path.isdir(dst):
dstfile = dst + "/" + os.path.basename(src)
if os.path.lexists(dstfile):
os.remove(dstfile)
elif os.path.lexists(dst):
os.remove(dst)
else:
dstfile = dst
if os.path.lexists(dst):
os.remove(dst)
shutil.copy(src, dst)
if add_write_perm:
new_mode = os.lstat(dstfile).st_mode | stat.S_IWUSR | stat.S_IWGRP
os.chmod(dstfile, new_mode)
except PermissionError as e:
if e.errno == errno.EPERM:
#be forgiving about permissions errors; if it's a real problem, things will explode later anyway