What does mean the «You should avoid overwriting already defined auth settings» warning on the «composer update» command?

dmitry_fedyuk · June 8, 2016, 3:11am

The message means that yuu have redefined credentials for a repository.

composer/composer/blob/1.1.2/src/Composer/IO/BaseIO.php#L60-L80


/**
 * Check for overwrite and set the authentication information for the repository.
 *
 * @param string $repositoryName The unique name of repository
 * @param string $username       The username
 * @param string $password       The password
 */
protected function checkAndSetAuthentication($repositoryName, $username, $password = null)
{
    if ($this->hasAuthentication($repositoryName)) {
        $auth = $this->getAuthentication($repositoryName);
        if ($auth['username'] === $username && $auth['password'] === $password) {
            return;
        }


        $this->writeError(
            sprintf(
                "<warning>Warning: You should avoid overwriting already defined auth settings for %s.</warning>",
                $repositoryName
            )
        );