copy cache before it's deleted

Makefile

@@ -15,7 +15,7 @@ EXTRA_BOOT_PARAMS =
 ROOTFS_SIZE = 4
 DNF_CACHE = 
 
-# Generated vars
+# Generated/internal vars
 ## Formatting = _UPPERCASE
 _BASE_DIR = $(shell pwd)
 _IMAGE_REPO_ESCAPED = $(subst /,\/,$(IMAGE_REPO))
@@ -23,6 +23,8 @@ _IMAGE_REPO_DOUBLE_ESCAPED = $(subst \,\\\,$(_IMAGE_REPO_ESCAPED))
 _VOLID = $(firstword $(subst -, ,$(IMAGE_NAME)))-$(ARCH)-$(IMAGE_TAG)
 _REPO_FILES = $(subst /etc/yum.repos.d,repos,$(REPOS))
 _LORAX_TEMPLATES = $(subst .in,,$(shell ls lorax_templates/*.tmpl.in)) $(foreach file,$(shell ls lorax_templates/scripts/post),lorax_templates/post_$(file).tmpl)
+_EXCLUDED_TEMPLATES = lorax_templates/copy_dnf_cache.tpml.in
+_LORAX_TEMPLATES = $(filter-out $(_EXCLUDED_TEMPLATES),$(_LORAX_TEMPLATES))
 _TEMPLATE_VARS = ARCH VERSION IMAGE_REPO IMAGE_NAME IMAGE_TAG VARIANT WEB_UI REPOS _IMAGE_REPO_ESCAPED _IMAGE_REPO_DOUBLE_ESCAPED ENROLLMENT_PASSWORD
 _LORAX_ARGS = 
 
@@ -40,6 +42,7 @@ endif
 
 ifneq ($(DNF_CACHE),)
 _LORAX_ARGS += --cachedir $(DNF_CACHE)
+_LORAX_TEMPLATES += lorax_templates/copy_dnf_cache.tpml.in
 endif
 
 # Step 7: Buid end ISO

action.yml

@@ -91,6 +91,7 @@ runs:
       shell: bash
       run: |
         mkdir /cache/dnf || true
+        mkdir /cache/dnf_new || true
         mkdir /cache/skopeo || true
 
     - name: Run docker image
@@ -101,6 +102,7 @@ runs:
         if [[ -z "${tag}" ]]; then tag=${{ github.action_ref }}; fi
         if [[ "${{ inputs.enable_cache_dnf }}" == "true" ]]; then cache="${cache} -v /cache/dnf:/cache/dnf"; fi
         if [[ "${{ inputs.enable_cache_skopeo }}" == "true" ]]; then cache="${cache} -v /cache/skopeo:/cache/skopeo"; fi
+        if [[ "${{ steps.load_dnf_cache.outputs.cache-hit}}" == "false" ]]; then cache="${cache} -v /cache/dnf_new:/cache/dnf_new"; fi
         docker run --privileged --volume ${{ github.workspace }}:/github/workspace/ ${cache} ghcr.io/jasonn3/build-container-installer:${tag} \
           ARCH=${{ inputs.arch }} \
           IMAGE_NAME=${{ inputs.image_name }} \
@@ -120,7 +122,7 @@ runs:
       if: inputs.enable_cache_dnf == 'true' && steps.load_dnf_cache.outputs.cache-hit == 'false'
       uses: actions/cache/save@v4
       with:
-        path: /cache/dnf
+        path: /cache/dnf_new
         key: ${{ inputs.dnf_cache_key || env.dnf_cache_key }}
 
     - name: Save skopeo cache

lorax_templates/copy_dnf_cache.tmpl.in

@@ -0,0 +1 @@
+runcmd "bash -c 'if [[ -d /cache/dnf_new ]]; then cp -R /cache/dnf /cache/dnf_new; fi'"