Introduces ci inputs

shared_scripts.yml

@@ -3,17 +3,36 @@
 # Virtual Reality & Immersive Visualisation Group.
 #-------------------------------------------------------------------------------
 
+spec:
+  inputs:
+    unreal_version:
+      description: The Unreal Engine version in the form of "major.minor"
+      type: string
+      regex: \d+\.\d+
+      default: "5.5"
+    number_of_old_versions:
+      description: How many successful pipeline builds of this branch should be stored on the cluster.
+      type: number
+      default: 3
+    custom_ndisplay_config:
+      description: Custom nDisplay config stored on the cluster filesystem.
+      type: string
+      default: ""
+
+
+---
+
 variables:
   GIT_STRATEGY: none                # we disable fetch, clone or checkout for every job
   GIT_CHECKOUT: "false"             # as we only want to checkout and fetch in the preperation stage
   GIT_SUBMODULE_STRATEGY: "recursive"
   GIT_CLEAN_FLAGS: none
   GIT_DEPTH: "1"
-  NUMBER_OF_OLD_VERSIONS: 3         # number of old revisions to keep after the deploy
+  NUMBER_OF_OLD_VERSIONS: $[[ inputs.number_of_old_versions ]]         # number of old revisions to keep after the deploy
   CLUSTER_ADDRESS: "ngm01.hpc.itc.rwth-aachen.de" # Needs to be ngm01 as all other nodes require MFA
   SHARED_META_URL: "https://git-ce.rwth-aachen.de/vr-vis/VR-Group/unreal-development/unreal-ci/-/raw/master/shared.meta"
-  UNREAL_VERSION: "5.3"
-  CUSTOM_NDISPLAY_CONFIG: ""
+  UNREAL_VERSION: $[[ inputs.unreal_version ]]
+  CUSTOM_NDISPLAY_CONFIG: $[[ inputs.custom_ndisplay_config ]]
 
 
 ##################################Generate Project##################################