Add cache-id option

.github/workflows/test.yml

@@ -36,6 +36,7 @@ jobs:
         with:
           cache-source: var-lib-apt
           cache-target: /var/lib/apt
+          cache-id: cache-var-lib-apt
           skip-extraction: ${{ steps.cache-var-lib-apt.outputs.cache-hit }}
       - name: Build and push
         uses: docker/build-push-action@v5

.github/workflows/test/Dockerfile

@@ -3,6 +3,6 @@ RUN rm -f /etc/apt/apt.conf.d/docker-clean && \
   echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' > /etc/apt/apt.conf.d/keep-cache
 RUN \
   --mount=type=cache,target=/var/cache/apt,sharing=locked \
-  --mount=type=cache,target=/var/lib/apt,sharing=locked \
+  --mount=type=cache,id=cache-var-lib-apt,target=/var/lib/apt,sharing=locked \
   apt update && \
   apt-get --no-install-recommends install -y gcc

action.yml

@@ -7,6 +7,18 @@ inputs:
   cache-target:
     default: /root/.cache/go-build
     description: "Where the cache is stored in the docker container. Default: `/root/.cache/go-build`"
+  cache-id:
+    default: ''
+    description: "The id of the cache mount. Default: '' (No id option added)"
+  cache-mode:
+    default: ''
+    description: "The mode of the cache mount. Default: '' (No mode option added)"
+  cache-sharing:
+    default: ''
+    description: "The sharing option of the cache mount. Default: '' (No sharing option added)"
+  builder:
+    default: ''
+    description: "The sharing option of the cache mount. Default: '' (Use the current builder)"
   scratch-dir:
     default: scratch
     description: "Where the action is stores some temporary files for its processing. Default: `scratch`"

main

@@ -10,15 +10,34 @@ rm -Rf "$(read_action_input scratch-dir)" && mkdir -p "$(read_action_input scrat
 : "Prepare Timestamp for Layer Cache Busting"
 date --iso=ns | tee "$(read_action_input cache-source)"/buildstamp
 : "Prepare Dancefile to Access Caches"
+
+cache_mount_id="$(read_action_input cache-id)"
+cache_mount_id_string=$(test -n "$cache_mount_id" && echo "id=${cache_mount_id}," || echo '')
+
+cache_mount_mode="$(read_action_input cache-mode)"
+cache_mount_mode_string=$(test -n "$cache_mount_mode" && echo "mode=${cache_mount_mode}," || echo '')
+
+cache_mount_sharing="$(read_action_input cache-sharing)"
+cache_mount_sharing_string=$(test -n "$cache_mount_sharing" && echo "sharing=${cache_mount_sharing}," || echo '')
+
 cat >"$(read_action_input scratch-dir)"/Dancefile.inject <<EOF
 FROM busybox:1
 COPY buildstamp buildstamp
-RUN --mount=type=cache,target="$(read_action_input cache-target)" \
+RUN --mount=type=cache,${cache_mount_id_string}${cache_mount_mode_string}${cache_mount_sharing_string}target="$(read_action_input cache-target)" \
     --mount=type=bind,source=.,target=/var/dance-cache \
     cp -p -R /var/dance-cache/. "$(read_action_input cache-target)" || true
 EOF
 cat "$(read_action_input scratch-dir)"/Dancefile.inject
 : "Inject Data into Docker Cache"
+
+builder=$(read_action_input builder)
+
+if [[ -n "$builder" ]]; then
+  docker buildx use $builder
+fi
+
 docker buildx build -f "$(read_action_input scratch-dir)"/Dancefile.inject --tag dance:inject "$(read_action_input cache-source)"
+: "Debug Directories"
+sudo ls -laR "$(read_action_input cache-source)"
 : "Clean Directories"
 sudo rm -rf "$(read_action_input cache-source)"

post

@@ -14,15 +14,31 @@ fi
 : "Prepare Timestamp for Layer Cache Busting"
 date --iso=ns | tee "$(read_action_input scratch-dir)"/buildstamp
 : "Prepare Dancefile to Access Caches"
+
+cache_mount_id="$(read_action_input cache-id)"
+cache_mount_id_string=$(test -n "$cache_mount_id" && echo "id=${cache_mount_id}," || echo '')
+
+cache_mount_mode="$(read_action_input cache-mode)"
+cache_mount_mode_string=$(test -n "$cache_mount_mode" && echo "mode=${cache_mount_mode}," || echo '')
+
+cache_mount_sharing="$(read_action_input cache-sharing)"
+cache_mount_sharing_string=$(test -n "$cache_mount_sharing" && echo "sharing=${cache_mount_sharing}," || echo '')
+
 cat >"$(read_action_input scratch-dir)"/Dancefile.extract <<EOF
 FROM busybox:1
 COPY buildstamp buildstamp
-RUN --mount=type=cache,target="$(read_action_input cache-target)" \
+RUN --mount=type=cache,${cache_mount_id_string}${cache_mount_mode_string}${cache_mount_sharing_string}target="$(read_action_input cache-target)" \
     mkdir -p /var/dance-cache/ \
     && cp -p -R "$(read_action_input cache-target)"/. /var/dance-cache/ || true
 EOF
 cat "$(read_action_input scratch-dir)"/Dancefile.extract
 : "Extract Data into Docker Image"
+builder=$(read_action_input builder)
+
+if [[ -n "$builder" ]]; then
+  docker buildx use $builder
+fi
+
 docker buildx build -f "$(read_action_input scratch-dir)"/Dancefile.extract --tag dance:extract --load "$(read_action_input scratch-dir)"
 : "Create Extraction Image"
 docker rm -f cache-container && docker create -ti --name cache-container dance:extract
@@ -31,3 +47,5 @@ docker cp -L cache-container:/var/dance-cache - | tar -H posix -x -C "$(read_act
 : "Move Cache into Its Place"
 sudo rm -rf "$(read_action_input cache-source)"
 mv "$(read_action_input scratch-dir)"/dance-cache "$(read_action_input cache-source)"
+: "Debug Directories"
+sudo ls -laR "$(read_action_input cache-source)"