/**
* Verify git version
*
* Verify hat the version of the installed GIT binary is at least 1.6. Will
* throw an exception, if the binary is not available or too old.
*
* @return void
*/
protected static function checkVersion()
{
if (self::$checked === true) {
return true;
}
$process = new pbsSystemProcess('git');
$process->nonZeroExitCodeException = true;
$process->argument('--version')->execute();
if (!preg_match('(\\d+(?:\\.\\d+)+)', $process->stdoutOutput, $match)) {
throw new vcsRuntimeException('Could not determine GIT version.');
}
if (version_compare($match[0], '1.6', '>=')) {
return self::$checked = true;
}
throw new vcsRuntimeException('Git is required in a minimum version of 1.6.');
}
/**
* Get diff
*
* Get the diff between the current version and the given version.
* Optionally you may specify another version then the current one as the
* diff base as the second parameter.
*
* @param string $version
* @param string $current
* @return vcsResource
*/
public function getDiff($version, $current = null)
{
if (!in_array($version, $this->getVersions(), true)) {
throw new vcsNoSuchVersionException($this->path, $version);
}
$current = $current === null ? $this->getVersionString() : $current;
if (($diff = vcsCache::get($this->path, $version, 'diff')) === false) {
// Refetch the basic content information, and cache it.
$process = new vcsGitCliProcess();
$process->workingDirectory($this->root);
$process->argument('diff')->argument('--no-ext-diff');
$process->argument($version . '..' . $current)->argument(new pbsPathArgument('.' . $this->path))->execute();
// Parse resulting unified diff
$parser = new vcsUnifiedDiffParser();
$diff = $parser->parseString($process->stdoutOutput);
vcsCache::cache($this->path, $version, 'diff', $diff);
}
return $diff;
}
/**
* Update repository
*
* Update the repository to the most current state. Method will return
* true, if an update happened, and false if no update was available.
*
* Optionally a version can be specified, in which case the repository
* won't be updated to the latest version, but to the specified one.
*
* @param string $version
* @return bool
*/
public function update($version = null)
{
// Remember version before update try
$oldVersion = $this->getVersionString();
$process = new vcsGitCliProcess();
$process->workingDirectory($this->root);
$process->argument('pull')->argument('origin');
$process->execute();
// Check if an update has happened
$this->currentVersion = null;
return $oldVersion !== $this->getVersionString();
}
