fix apram branch

Jenkinsfile.eval

@@ -3,11 +3,12 @@ pipeline {
         dockerfile true
     }
     parameters{
-        string(
-            defaultValue: 'master', 
-            description: 'training branch name', 
-            name: 'TRAINING_BRANCH'
-        )
+        gitParameter branchFilter: 'origin/(.*)', defaultValue: 'main', name: 'BRANCH', type: 'PT_BRANCH'
+        buildSelector(
+			defaultSelector: lastSuccessful(),
+			description: 'Which build to use for copying artifacts',
+			name: 'BUILD_SELECTOR'
+		)
     }
     stages {
         stage('Copy prev build artifact') {
@@ -30,7 +31,7 @@ pipeline {
         stage('Copy') {
             steps {
                 copyArtifacts projectName: 's444417-create-dataset'
-                copyArtifacts projectName: 's444417-training/$TRAINING_BRANCH'
+                copyArtifacts projectName: "s444417-training/${params.BRANCH}/", selector: buildParameter('BUILD_SELECTOR'), optional: true
                 sh 'python3 ./src/evalScript.py'
                 archiveArtifacts 'trainResults.csv'
                 sh "ls -la"