switch the »current« symlink in an atomic way

2026-09-03 03:38:57 +02:00 · 2015-01-09 17:27:14 +01:00
parent 683d11ac90
commit 4e17263773
2 changed files with 8 additions and 5 deletions
@@ -127,9 +127,11 @@ class RollbackTask extends AbstractTask implements IsReleaseAware

                    $userGroup = '';
                    $resultFetch = $this->runCommandRemote('ls -ld ' . $rollbackTo . ' | awk \'{print \$3":"\$4}\'', $userGroup);
-                    $command = 'rm -f ' . $symlink
+
+                    $tmplink = $rollbackTo . '.tmp';
+                    $command = 'ln -sfn ' . $currentCopy . ' ' . $tmplink
                             . ' && '
-                             . 'ln -sf ' . $rollbackTo . ' ' . $symlink;
+                             . 'mv -T ' . $tmplink . ' ' . $symlink;

                    if ($resultFetch) {
                        $command .= ' && chown -h ' . $userGroup . ' ' . $symlink;