====== Setting up a post-commit mail notification for a Subversion repository ======

Setting up SVN post-commits can allow you to automatically update your webroot whenever a change has happened to SVN.  It is a script that runs after every commit and is pretty simple to implement:

First make sure your SVN is setup properly by following: [[accelerators:apache_svn|Setup Apache with Subversion]]

After this is done, verify everything is working properly.  Note that your entire svn directory should be owned by the user that Apache is running as.

Then create a file /path/to/svn/repos/hooks/post-commit and have it look like:

<code>
#!/bin/sh

/path/to/svn/repos/hooks/update
</code>

Set it executable:

<code>
# chmod +x /path/to/svn/repos/hooks/post-commit
</code>

post-commit should be owned by the user apache is running as.

Create the /path/to/svn/repos/hooks/update.c file:

<code>
#include <stddef.h>
#include <stdlib.h>
#include <unistd.h>
int main(void)
{
  execl("/opt/csw/bin/svn", "svn", "update", "/path/to/web/public/",
        (const char *) NULL);
  return(EXIT_FAILURE);
}
</code>

Compile it, set proper permissions:

<code>
# cc -o update update.c
# chmod +x update
# chmod u+s update
# chmod g+s update
</code>

They should look like:

<code>
-rwsr-sr-x   1 bsmith bsmith    7.9K Jan 10 19:06 update*
</code>

Make sure your /path/to/web/public is a working copy.

You can verify things are working by running the svn update as your regular user, in this example 'bsmith'.