WP_Automatic_Updater::is_vcs_checkout( string $context ): bool

127	public function is_vcs_checkout( $context ) {128		$context_dirs = array( untrailingslashit( $context ) );129		if ( ABSPATH !== $context ) {130			$context_dirs[] = untrailingslashit( ABSPATH );131		}132 133		$vcs_dirs   = array( '.svn', '.git', '.hg', '.bzr' );134		$check_dirs = array();135 136		foreach ( $context_dirs as $context_dir ) {137			// Walk up from $context_dir to the root.138			do {139				$check_dirs[] = $context_dir;140 141				// Once we've hit '/' or 'C:\', we need to stop. dirname will keep returning the input here.142				if ( dirname( $context_dir ) === $context_dir ) {143					break;144				}145 146				// Continue one level at a time.147			} while ( $context_dir = dirname( $context_dir ) );148		}149 150		$check_dirs = array_unique( $check_dirs );151		$checkout   = false;152 153		// Search all directories we've found for evidence of version control.154		foreach ( $vcs_dirs as $vcs_dir ) {155			foreach ( $check_dirs as $check_dir ) {156				if ( ! $this->is_allowed_dir( $check_dir ) ) {157					continue;158				}159 160				$checkout = is_dir( rtrim( $check_dir, '\\/' ) . "/$vcs_dir" );161				if ( $checkout ) {162					break 2;163				}164			}165		}166 167		/**168		 * Filters whether the automatic updater should consider a filesystem169		 * location to be potentially managed by a version control system.170		 *171		 * @since 3.7.0172		 *173		 * @param bool $checkout  Whether a VCS checkout was discovered at `$context`174		 *                        or ABSPATH, or anywhere higher.175		 * @param string $context The filesystem context (a path) against which176		 *                        filesystem status should be checked.177		 */178		return apply_filters( 'automatic_updates_is_vcs_checkout', $checkout, $context );179	}