/**
* The main function of the hook.
*
* Expects the following arguments:
*
* - $argv[1] - The path of the configuration file, xgit-config.php.
* - $argv[2] - The name of the ref being stored.
* - $argv[3] - The old object name stored in the ref.
* - $argv[4] - The new objectname to be stored in the ref.
*
* @param argc
* The number of arguments on the command line.
*
* @param argv
* Array of the arguments.
*/
function xgit_init($argc, $argv)
{
$this_file = array_shift($argv);
// argv[0]
if ($argc != 5) {
xgit_help($this_file, STDERR);
exit(VERSIONCONTROL_GIT_ERROR_WRONG_ARGC);
}
$config_file = array_shift($argv);
// argv[1]
$ref = array_shift($argv);
// argv[2]
$old_obj = array_shift($argv);
// argv[3]
$new_obj = array_shift($argv);
// argv[4]
// Load the configuration file and bootstrap Drupal.
if (!file_exists($config_file)) {
fwrite(STDERR, t('Error: failed to load configuration file.') . "\n");
exit(VERSIONCONTROL_GIT_ERROR_NO_CONFIG);
}
include_once $config_file;
global $xgit;
// Admins and other privileged users don't need to go through any checks.
if (!in_array($xgit['uid'], $xgit['allowed_users'])) {
// Do a full Drupal bootstrap.
xgit_bootstrap();
$ref_type = xgit_ref_type($ref);
if ($ref_type === FALSE) {
fwrite(STDERR, "Given reference '{$ref}' is invalid.\n\n");
exit(VERSIONCONTROL_GIT_ERROR_INVALID_REF);
}
try {
_xgit_assert_type(array($new_obj => array('commit', 'tag', 'empty'), $old_obj => array('commit', 'tag', 'empty')));
} catch (Exception $e) {
fwrite(STDERR, $e->getMessage());
exit(VERSIONCONTROL_GIT_ERROR_INVALID_OBJ);
}
// Debugging help
if ($GLOBALS['xgit_debug']) {
$commits = xgit_get_commits($old_obj, $new_obj);
$commits = implode(' ', $commits);
fwrite(STDERR, 'DEBUG COMMITS:' . $commits . "\n");
}
$label = xgit_label_for($ref, $old_obj, $new_obj);
foreach (xgit_get_commits($old_obj, $new_obj) as $commit) {
$access = xgit_check_commit_access($commit, $label);
// Fail and print out error messages if commit access has been denied.
if (!$access) {
fwrite(STDERR, implode("\n\n", versioncontrol_get_access_errors()) . "\n\n");
exit(VERSIONCONTROL_GIT_ERROR_NO_ACCESS);
}
}
}
// Everything succeeded. Allow operation to complete.
exit(0);
}
/**
* Return the operation type associated with the given reference.
*
* @param $ref
* The reference of which to compute the operation type.
*
* @return
* Either VERSIONCONTROL_OPERATION_BRANCH or VERSIONCONTROL_OPERATION_TAG.
*/
function xgit_operation_type($ref)
{
switch (xgit_ref_type($ref)) {
case 'heads':
case 'remotes':
return VERSIONCONTROL_OPERATION_BRANCH;
break;
case 'tags':
return VERSIONCONTROL_OPERATION_TAG;
break;
default:
throw new Exception("Unexpected operation type '{$ref}' received.");
break;
}
}
