RFC: Cache template.

[caugner]

Couscous currently doesn't cache the template.

This has two disadvantages:

1. Preview isn't really (*) possible when offline.
2. It retrieves data that it already retrieved before.

(*) It is possible though to checkout the template repository locally and provide this path as a file:// url.

Caching the template repository would solve these problems:

// FetchRemoteTemplate.php

private function fetchGitTemplate($gitUrl)
{
    $this->logger->notice('Fetching template from {url}', ['url' => $gitUrl]);

    $gitUrlHash = sha1($gitUrl);
    $directory = getcwd() . '/.couscous/templates/' . $gitUrlHash;

    $this->git->cloneOrUpdateRepository($gitUrl, $directory);

    return $directory;
}

// Git.php

    public function cloneOrUpdateRepository($url, $directory)
    {
        if (!file_exists($directory)) {
            $this->commandRunner->run("git clone $url $directory");
        } else {
            $this->commandRunner->run("cd $directory; git reset --hard; git pull; cd " . getcwd());
        }
    }

What do you think of this?

[mnapoli]

Sounds like a very good idea! (sorry for the delay)

[mnapoli]

(FYI there's the Git helper for doing git operations)