'git pull' executing in SSH, but not in github post-receive script

Question

I am trying to setup github to websever deployment automation. I've got everything working except the most important bit. I have a file @ mydomain.com/github.php that looks like this:

<?php
`git pull`;
?>

and this is the post-receive URL for my github repo. Github is posting to it successfuly, but the shell command is not running. When I try SSHing into my server, and running the script directly:

php github.php

it works just fine and changed files are pulled succesfully

From git://github.com/user/Repo
   7e3176d..f889c14  master     -> origin/master

but when accessing the page in my browser or when github POSTs to it - the shell command is not executed. There is no error - just an empty result. What am I doing wrong here?

php.net/manual/en/language.operators.execution.php I just learned about it the other day myself :) — Yev
– Yev, Commented Feb 19, 2012 at 20:06

zerkms · Accepted Answer · 2012-02-19 22:15:18Z

3

There are 2 possible issues:

Permissions - most likely your webserver user doesn't have necessary
Work directory. Double check that your shell command is being executed in correct path (getcwd())

UPD

Git outputs the error messages to stderr, so to see the real error message you need

echo `git pull 2>&1`;

edited Feb 19, 2012 at 22:15

answered Feb 19, 2012 at 20:11

zerkms

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2 Comments

Yev Over a year ago

1. I am doing this on one of the subaccounts of my VPS. I have full control to go in and make the nessecary changes to permissions, but unfortuantely I'm not sure how/where I would do this. Could you give me some guidance how I would be able to check and set the appropriate permissions? 2. The current working directory is correct.

Yev Over a year ago

"error: cannot open .git/FETCH_HEAD: Permission denied" is the error I am receiving.

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