Externalize cache file

.gitlab-ci.yml

@@ -75,23 +75,8 @@ downloads:
       paths:
         - ./packer_config/
   script:
-    - set -exo pipefail
     - packer init sources
-    - files=()
+    - bash cache.sh
-    - |-
-      for vars in $(find distros/ -name '*.pkrvars.hcl'); do
-        file=$(echo var.iso.url | packer console -var-file=${vars} -config-type=hcl2 sources/)
-        base="$(basename "${file}")"
-        if [ -e "cache/${base}" ]; then
-          echo "Cached file already exists"
-        else
-          files+=("-O" "${file}")
-        fi
-      done
-    - mkdir -p cache
-    - pushd cache
-    - curl --parallel -L "${files[@]}"
-    - popd
 
 trigger:
   stage: trigger

cache.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+files=()
+
+for vars in $(find distros/ -name '*.pkrvars.hcl'); do
+  file=$(echo var.iso.url | packer console -var-file=${vars} -config-type=hcl2 sources/)
+  base="$(basename "${file}")"
+  if [ -e "cache/${base}" ]; then
+    echo "Found cache/${base} already"
+  else
+    files+=("-O" "${file}")
+  fi
+done
+
+mkdir -p cache
+pushd cache
+echo "Downloading ${files[@]}"
+curl --parallel -L "${files[@]}"
+popd