upload only if in dev branch

Jenkinsfile

@@ -87,8 +87,8 @@ def buildArchitecture(architecture, pharoVersion) {
         }
       }
 
-    //Do not deploy if in PR
-    if (isPullRequest()){
+    // Do not deploy if not in dev branch
+    if ( shouldNotUpload() ){
       return;
     }
     node('linux') {
@@ -124,9 +124,7 @@ def notifyBuild() {
 }
 
 def cleanUploadFolderIfNeeded(launcherVersion) {
-  if (isPullRequest()) {
-    //Only upload files if not in a PR (i.e., CHANGE_ID not empty)
-    echo "[DO NO UPLOAD] In PR " + (env.CHANGE_ID?.trim())
+  if (shouldNotUpload()) {
     return;
   }
 
@@ -160,9 +158,7 @@ def finalizeUpload(launcherVersion) {
 }
 
 def upload(file, launcherVersion) {
-  if (isPullRequest()) {
-    //Only upload files if not in a PR (i.e., CHANGE_ID not empty)
-    echo "[DO NO UPLOAD] In PR " + (env.CHANGE_ID?.trim())
+  if (shouldNotUpload()) {
     return;
   }
 
@@ -186,6 +182,26 @@ def fileNameArchSuffix(architecture) {
   return (architecture == '64') ? 'x64' : architecture
 }
 
+def shouldNotUpload() {
+  if (isPullRequest()) {
+    //Only upload files if not in a PR (i.e., CHANGE_ID not empty)
+    echo "[DO NO UPLOAD] In PR " + (env.CHANGE_ID?.trim())
+    return true
+  }
+
+  if (isNotDevBranch()) {
+    echo "[DO NO UPLOAD] In branch " + (env.BRANCH_NAME?.trim())
+    return true
+  }
+
+  // Do upload
+  return false
+}
+
+def isNotDevBranch() {
+  return env.BRANCH_NAME != "dev"
+}
+
 def isPullRequest() {
   return env.CHANGE_ID != null
 }