On Tuesday, Jordan Johnson wrote: > Hi all, > > Is it possible to run the racket handin-server from a remote Linux > shell, without setting up an X forwarding session? When I attempt > to start it using "gracket-text -l handin-server" as specified in > the docs, I get an error about not having a display available; the > error appears to stem from the dependency on racket/gui/base. (My > plan was to run it on a server that the students can access from > home whenever, something my workstation & network at school won't > allow.)
That's something that should work, but unfortunately there's a problem where gtk is used in a way that requires a display. See more details in PR 12465: http://bugs.racket-lang.org/query/?cmd=view%20audit-trail&pr=12465 For now, the most convenient solution is -- still -- to run a vnc session and run the server in it. This way you get a display and you can connect to the session from anywhere when you need to deal with potential problems. > Or perhaps am I fundamentally misunderstanding the way the handin > server is supposed to work? (My mental model is: students submit > files to server, instructor downloads a copy of the directory, and > runs/checks the submissions locally.) Submissions get stored as files on the server, when you close a homework by moving its entry from the active list to the inactive one, you can do whatever you want with those files. (I commit them into a repository that my graded has access to, and he grades it directly from there.) > By the way, this reminded me: is there a straightforward way to > collect the test cases from a submission, and run them on code that > I've written? If you know the tests beforehand, you can make them part of the checker. If you want to test them afterwards, you need to use the sandbox for it. I have a quick script for that, in case you're interested. -- ((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay: http://barzilay.org/ Maze is Life! ____________________ Racket Users list: http://lists.racket-lang.org/users
