从Docroot递归搜索.git目录

Question

I'm building a class in PHP for deploying via web hooks from GitLab.

Obviously the file to hook needs to be available from the web and exist within the docroot.

But in order for this to pull the repo correctly, I need to recurse upwards from the docroot and find which directory contains the .git directory.

I can't find an iterator that recurses upward.

I've tried Recursive Directory Iterator

but that recurses down from a top level directory and that won't work since I may have several directories that may contain .git directories.

How would I go about recursing upwards until the first instance of a .git directory is found?

Answer 1

Ok this seems to do the trick, there may be an easier way out there but this serves the purpose pretty cleanly.

private function __seek() {
    $directories = array();
    $dirs        = explode('/', dirname(__FILE__));

    // remove empty first item
    array_shift($dirs);

    // remove the top/home directory as we won't be able to read it anyway
    $count = (count($dirs) - 1);

    for ($i = 0; $i < $count; $i++):
        $directories[] = '/' . implode('/', $dirs);
        array_pop($dirs);
    endfor;

    $paths = array();

    foreach ($directories as $directory):
        if (in_array('.git', scandir($directory))):
            $paths['parent']    = dirname($directory);
            $paths['directory'] = basename($directory);
        endif;
    endforeach;

    return $paths;
}

This returns a nice array that I can gives me both the directory (parent) which I need to chdir() into to pull, and the directory name to pull to (directory)

Array
(
    [parent] => /home/solution
    [directory] => app
)

Answer 2

Silly me ...

as it turns out, GIT is so intuitive that it does the upstream searching for you.

I just tried to pull from 5 directories deep and it worked perfectly.

You can pull from any directory beneath your .git directory.

GIT FTW!