# error: cannot run hooks/pre-receive: No such file or directory 4 messages from 2011-03-30 to 2011-03-31. Participants: Mathieu Malaterre, Computer Druid, Jeff King. Thread: https://gitlist.dev/t/26928 ## Mathieu Malaterre, 2011-03-30 13:27 Subject: error: cannot run hooks/pre-receive: No such file or directory Message-ID: URL: https://gitlist.dev/e/AANLkTinehsLJWYona7ONqquWpCZozr3hW-JNMhYz4Rvn%40mail.gmail.com ``` Hi all, I am trying to use a ruby script to reject commit with non-linear history (*). However it keeps failing with the following message: $ git push Counting objects: 5, done. Delta compression using up to 4 threads. Compressing objects: 100% (3/3), done. Writing objects: 100% (3/3), 304 bytes, done. Total 3 (delta 2), reused 0 (delta 0) error: cannot run hooks/pre-receive: No such file or directory To ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old ! [remote rejected] master -> master (pre-receive hook declined) error: failed to push some refs to 'ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old' I tried with something as simple as : % cat pre-receive #!/usr/bin/ruby % which ruby /usr/bin/ruby Do I need to do something special with ruby ? Thanks, -- Mathieu ``` ## Computer Druid, 2011-03-30 18:35 Subject: Re: error: cannot run hooks/pre-receive: No such file or directory Message-ID: URL: https://gitlist.dev/e/AANLkTimkVSL52Bhdhnu%2BOC8SWzfUJ7ZK0KBcydjG4wXT%40mail.gmail.com In-Reply-To: ``` On Wed, Mar 30, 2011 at 9:27 AM, Mathieu Malaterre wrote: > Hi all, > >  I am trying to use a ruby script to reject commit with non-linear > history (*). However it keeps failing with the following message: > > $ git push > Counting objects: 5, done. > Delta compression using up to 4 threads. > Compressing objects: 100% (3/3), done. > Writing objects: 100% (3/3), 304 bytes, done. > Total 3 (delta 2), reused 0 (delta 0) > error: cannot run hooks/pre-receive: No such file or directory > To ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old >  ! [remote rejected] master -> master (pre-receive hook declined) > error: failed to push some refs to > 'ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old' > > I tried with something as simple as : > > % cat pre-receive > #!/usr/bin/ruby > % which ruby > /usr/bin/ruby Check that hooks/pre-receive is executable? (chmod +x) ``` ## Jeff King, 2011-03-30 20:04 Subject: Re: error: cannot run hooks/pre-receive: No such file or directory Message-ID: <20110330200442.GA30663@sigill.intra.peff.net> URL: https://gitlist.dev/e/20110330200442.GA30663%40sigill.intra.peff.net In-Reply-To: ``` On Wed, Mar 30, 2011 at 03:27:14PM +0200, Mathieu Malaterre wrote: > $ git push > Counting objects: 5, done. > Delta compression using up to 4 threads. > Compressing objects: 100% (3/3), done. > Writing objects: 100% (3/3), 304 bytes, done. > Total 3 (delta 2), reused 0 (delta 0) > error: cannot run hooks/pre-receive: No such file or directory > To ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old > ! [remote rejected] master -> master (pre-receive hook declined) > error: failed to push some refs to > 'ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old' We won't try to execute a hook that doesn't exist, so the "no such file or directory" almost certainly means the #! interpreter is missing. > I tried with something as simple as : > > % cat pre-receive > #!/usr/bin/ruby > % which ruby > /usr/bin/ruby This might be a stupid question, but which machine is that output from? The pre-receive hook runs on the server, so you must have ruby there. I ask mainly because I didn't realize sourceforge would give people arbitrary shell access on the git boxes. My next guess would be that the git process runs in some kind of chroot that doesn't have ruby in it. > Do I need to do something special with ruby ? >From git's perspective, no, but it may depend on how the server is configured. -Peff ``` ## Mathieu Malaterre, 2011-03-31 07:20 Subject: Re: error: cannot run hooks/pre-receive: No such file or directory Message-ID: URL: https://gitlist.dev/e/AANLkTikb42kG8DyZ7KHhin%2B%3D1X72XvN9p-mjed0oJsk%3D%40mail.gmail.com In-Reply-To: <20110330200442.GA30663@sigill.intra.peff.net> ``` On Wed, Mar 30, 2011 at 10:04 PM, Jeff King wrote: > On Wed, Mar 30, 2011 at 03:27:14PM +0200, Mathieu Malaterre wrote: > >> $ git push >> Counting objects: 5, done. >> Delta compression using up to 4 threads. >> Compressing objects: 100% (3/3), done. >> Writing objects: 100% (3/3), 304 bytes, done. >> Total 3 (delta 2), reused 0 (delta 0) >> error: cannot run hooks/pre-receive: No such file or directory >> To ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old >>  ! [remote rejected] master -> master (pre-receive hook declined) >> error: failed to push some refs to >> 'ssh://malat@gdcm.git.sourceforge.net/gitroot/gdcm/gdcm.old' > > We won't try to execute a hook that doesn't exist, so the "no such file > or directory" almost certainly means the #! interpreter is missing. > >> I tried with something as simple as : >> >> % cat pre-receive >> #!/usr/bin/ruby >> % which ruby >> /usr/bin/ruby > > This might be a stupid question, but which machine is that output from? > The pre-receive hook runs on the server, so you must have ruby there. I > ask mainly because I didn't realize sourceforge would give people > arbitrary shell access on the git boxes. > > My next guess would be that the git process runs in some kind of chroot > that doesn't have ruby in it. Makes complete sense now. I thought initially that the "no such file" refered to the actual hooks script. I naively assumed my ssh connection on sf.net gave me access to the actual git boxes (or maybe it is executed from a chroot). In any case rewriting the script in pure shell script (no bash either) seems to work ok now (*). However I am now being told that this script should rather go in the update hooks... (*) read rev_old rev_new refname ref_to_check="refs/heads/master" if [ "$refname" == "$ref_to_check" ] then merge_bases=`git merge-base ${rev_old} ${rev_new}` if [ "$merge_bases" != "$rev_old" ] then echo "Non fastward is disallowed" exit 1 fi # non-fast-forward case: git rev-list --parents $merge_bases..$rev_new \ | while read x; do set -- $x if [ "$#" != "2" ] then echo "Multiple parents: $x"; exit 1 fi; done [ $? -ne 0 ] && exit 1 fi exit 0 ```