dry-run the rsync step

Signed-off-by: Frédéric Dalleau <frederic.dalleau@collabora.com>

Jenkinsfile

@@ -8,16 +8,11 @@ properties(
 
 def uploadDirectory(source, target, upload = true) {
 
-  if (!upload) {
-    println "Skipping upload of ${source} to ${target}"
-    return
-  }
-
   sshagent (credentials: [ "5a23cd79-e26d-41bf-9f91-d756c131b811", ] ) {
     env.NSS_WRAPPER_PASSWD = "/tmp/passwd"
     env.NSS_WRAPPER_GROUP = '/dev/null'
     sh(script: 'echo docker:x:$(id -u):$(id -g):docker gecos:/tmp:/bin/false > ${NSS_WRAPPER_PASSWD}')
-    sh(script: "LD_PRELOAD=libnss_wrapper.so rsync -e \"ssh -oStrictHostKeyChecking=no\" -aP ${source} archive@images.apertis.org:/srv/images/public/${target}/")
+    sh(script: "LD_PRELOAD=libnss_wrapper.so rsync --dry-run -e \"ssh -oStrictHostKeyChecking=no\" -aP ${source} archive@images.apertis.org:/srv/images/public/${target}/")
   }
 }