amazon ec2 - why doesn't my git post-receive hook seem to work -

i have amazon ec2 instance that's running linux , has git installed. setup git repo following command.

git init --bare 

i cd hooks directory , created post-receive file has following bash script.

#!/bin/sh git_work_tree=/var/www/mysite export git_work_tree git checkout -f 

when push local repo server seems go well. tested adding new file called myfile.html project , pushing server. don't errors. however, when cd /var/www/mysite directory don't see new file added, if clone remote repo new directory locally changes pushed server.

my thought changes being tracked git fine when post-receive runs maybe sort of permissions issue keeping files getting moved , applied /var/www/mysite directory ?

hoping can shed light on may happening , how trouble shoot this.

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so post-receive file needed following permissions set make executable.

chmod +x post-receive  

after doing have actual permissions issue i'm telling git move files when pushed , post-receive runs.

my guess post-receive trying move files /var/www/mysite folder i'm asking gives me access denied errors when trying move , change files.

i tried adding sudo post-receive script so

    #!/bin/sh     sudo git_work_tree=/var/www/mysite     export git_work_tree     sudo git checkout -f 

doing gave me following error when pushed code.

remote: usage: sudo [-d level] -h | -k | -k | -v remote: usage: sudo -v [-akns] [-d level] [-g groupname|#gid] [-p prompt] [-u user remote:             name|#uid] remote: usage: sudo -l[l] [-akns] [-d level] [-g groupname|#gid] [-p prompt] [-u user remote:             name] [-u user name|#uid] [-g groupname|#gid] [command] remote: usage: sudo [-abehknps] [-r role] [-t type] [-c fd] [-d level] [-g remote:             groupname|#gid] [-p prompt] [-u user name|#uid] [-g groupname|#gid] remote:             [var=value] [-i|-s] [<command>] remote: usage: sudo -e [-akns] [-r role] [-t type] [-c fd] [-d level] [-g remote:             groupname|#gid] [-p prompt] [-u user name|#uid] file ... remote: fatal: operation must run in work tree