fi0r1/pyenv
1
0
Fork 0
mirror of https://github.com/pyenv/pyenv.git synced 2025-12-07 10:28:35 +00:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

rehash: Workaround hang due to Linux Landlock reporting false access() info

Browse Source
This commit is contained in:
Ivan Pozdeev 2025-12-05 10:16:15 +03:00
parent 61d869f67e
commit bee9b50391
No known key found for this signature in database
GPG Key ID: FB6A628DCF06DCD7
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
libexec/pyenv-rehash
View File

@ -46,10 +46,20 @@ while (( SECONDS <= start + ${PYENV_REHASH_TIMEOUT:-60} )); do
acquired=1 acquired=1
break break
else else
#Landlock sandbox subsystem in the Linux kernel returns false information in access() as of 6.14.0,
# making -w "$SHIM_PATH" not catch the fact that the shims dir is not writable in this case.
#Bash doesn't provide access to errno to check for non-EEXIST error code in acquire_lock.
#So check for writablity by trying to write to a different file,
# in a way that taxes the usual use case as little as possible.
if [[ -z $tested_for_other_write_errors ]]; then
( t="$(mktemp -p "$SHIM_PATH")" && rm "$t" ) && tested_for_other_write_errors=1 ||
{ echo "pyenv: cannot rehash: $SHIM_PATH isn't writable"; break }
fi
# POSIX sleep(1) doesn't provide subsecond precision, but many others do # POSIX sleep(1) doesn't provide subsecond precision, but many others do
sleep 0.1 2>/dev/null || sleep 1 sleep 0.1 2>/dev/null || sleep 1
fi fi
done done
unset tested_for_other_write_errors
if [ -z "${acquired}" ]; then if [ -z "${acquired}" ]; then
echo "pyenv: cannot rehash: $PROTOTYPE_SHIM_PATH exists" echo "pyenv: cannot rehash: $PROTOTYPE_SHIM_PATH exists"