podman correction

vars/podman.groovy

@@ -1,28 +1,26 @@
-void buildCadolesPodPackage(String imageName, String imageTag, Map options = [:]) {
+String buildCadolesPodPackage(String imageName, String imageTag, Map options = [:]) {
   String destDir = options.get('destDir', env.WORKSPACE + '/dist')
   Map nfpmOptions = options.get('nfpmOptions', [:])
 
   nfpmOptions['target'] = destDir
 
   Map env = options.get('env', [:])
-
   env['IMAGE_NAME'] = imageName
   env['IMAGE_TAG'] = imageTag
 
-  withPodmanPackagingTempDir {
+  return withPodmanPackagingTempDir {
     gomplate('post-install.sh.gotmpl', 'post-install.sh', env)
     gomplate('pod.service.gotmpl', 'pod.service', env)
     gomplate('pod.conf.gotmpl', 'pod.conf', env)
     gomplate('nfpm.yaml.gotmpl', 'nfpm.yaml', env)
-
     nfpm(nfpmOptions)
   }
 }
 
 void withPodmanPackagingTempDir(Closure fn) {
   File tempDir = File.createTempDir()
-  tempDir.deleteOnExit()
 
+  tempDir.deleteOnExit()
   tempDir.mkdirs()
 
   dir(tempDir.getAbsolutePath()) {
@@ -32,13 +30,11 @@ void withPodmanPackagingTempDir(Closure fn) {
       'com/cadoles/podman/pod.service.gotmpl',
       'com/cadoles/podman/post-install.sh.gotmpl',
     ]
-
     for (res in resources) {
       String fileContent = libraryResource res
       String fileName = res.substring(res.lastIndexOf('/') + 1)
       writeFile file:fileName, text:fileContent
     }
-
     fn()
   }
 }