zhangyiss/the-littlest-jupyterhub
1
0
Fork 0
mirror of https://github.com/jupyterhub/the-littlest-jupyterhub.git synced 2025-12-18 21:54:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

Error out if there's a tljh-config that isn't ours in PATH

Browse Source
This commit is contained in:
yuvipanda
2018-08-01 18:53:50 -07:00
parent 381deaa399
commit 6e29dd5db9
1 changed files with 10 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
tljh/installer.py
View File

@@ -287,10 +287,16 @@ def ensure_symlinks(prefix):
"""
tljh_config_src = os.path.join(prefix, 'bin', 'tljh-config')
tljh_config_dest = '/usr/local/bin/tljh-config'
if not os.path.exists(tljh_config_dest):
# If this exists, we leave it alone. Do *not* remove it,
# since we are running as root and it could be anything!
os.symlink(tljh_config_src, tljh_config_dest)
if os.path.exists(tljh_config_dest):
if os.path.realpath(tljh_config_dest) != tljh_config_src:
# tljh-config exists that isn't ours. We should *not* delete this file,
# instead we throw an error and abort. Deleting files owned by other people
# while running as root is dangerous, especially with symlinks involved.
raise FileExistsError(f'/usr/local/bin/tljh-config exists but is not a symlink to {tljh_config_src}')
else:
# We have a working symlink, so do nothing
return
os.symlink(tljh_config_src, tljh_config_dest)
def main():