If i create a file like:
import os
print os.getlogin()
and run it with cron, I get an exception
print os.getlogin()
OSError: [Errno 22] Invalid argument
If I run it manually in shell -- it works.
Problem is, GitPython 0.3.1 in commit() uses this function, and i need to use it.
Is there any workaround?
I've tested it on Ubuntu10.10/python2.6.6 and Debian5.0.6/python2.5.2.
Answer
From the os.getlogin() docs: "Returns the user logged in to the controlling terminal of the process." Your script does not have a controlling terminal when run from cron. The docs go on to suggest: "For most purposes, it is more useful to use the environment variable LOGNAME to find out who the user is, or pwd.getpwuid(os.getuid())[0] to get the login name of the currently effective user id."
Since you don't want to modify GitPython, you could write a script that does this:
import os, pwd
os.getlogin = lambda: pwd.getpwuid(os.getuid())[0]
import git
# do whatever you need to do with GitPython here
I would suggest filing a bug (or better yet, submitting a patch) with GitPython, though.