fix: tag comparison

`is_stable` doesn't work as expected

Author: tomgehrmann

.github/workflows/build-push-auto.yml

@@ -23,7 +23,7 @@ jobs:
 
     outputs:
       is_new_version: ${{ steps.compare_tags.outputs.is_greater_a }}
-      is_stable: ${{ steps.compare_tags.outputs.is_stable_a }}
+      rc_source_tag: ${{ steps.compare_tags.outputs.rc_a }}
       current_source_tag: ${{ steps.get_latest_source_tag.outputs.tag }}
       new_image_tag: ${{ steps.get_new_image_tag.outputs.new_image_tag }}
       new_image_tag_suffix: ${{ steps.get_new_image_tag.outputs.new_image_tag_suffix }}
@@ -87,11 +87,11 @@ jobs:
           CURRENT_IMAGE_TAG: ${{ steps.get_latest_image_tag.outputs.latest_tag_with_base_version }}
           CURRENT_SOURCE_TAG: ${{ steps.get_latest_source_tag.outputs.current }}
           IS_NEW_SOURCE_TAG: ${{ steps.compare_tags.outputs.is_greater_a }}
-          IS_NEW_SOURCE_TAG_STABLE: ${{ steps.compare_tags.outputs.is_stable_a }}
+          NEW_SOURCE_TAG_RC: ${{ steps.compare_tags.outputs.rc_source_tag }}
           IS_NEW_IMAGE_BASE: ${{ steps.base_image_update_check.outputs.needs-updating }}
         run: |
             # Decide which tag to use for the new image
-            if [[ "$IS_NEW_SOURCE_TAG" == "true" && "$IS_NEW_SOURCE_TAG_STABLE" == "true" ]]; then
+            if [[ "$IS_NEW_SOURCE_TAG" == "true" && "$NEW_SOURCE_TAG_RC" == "" ]]; then
               new_image_tag="${CURRENT_SOURCE_TAG}"
               new_base=1
             elif [[ "$IS_NEW_IMAGE_BASE" == "true" ]]; then
@@ -129,7 +129,7 @@ jobs:
   build-push-envs:
     runs-on: ubuntu-22.04
     needs: [compare]
-    if: (needs.compare.outputs.is_new_version == 'true' && needs.compare.outputs.is_stable == 'true') || needs.compare.outputs.is_new_base_image == 'true'
+    if: (needs.compare.outputs.is_new_version == 'true' && needs.compare.outputs.rc_source_tag == '') || needs.compare.outputs.is_new_base_image == 'true'
     outputs:
       image_uri: ${{ steps.env-to-output.outputs.image_uri }}
       image_registry: ${{ steps.env-to-output.outputs.image_registry }}
@@ -152,7 +152,7 @@ jobs:
       contents: read
       packages: write
     needs: [build-push-envs, compare]
-    if: (needs.compare.outputs.is_new_version == 'true' && needs.compare.outputs.is_stable == 'true') || needs.compare.outputs.is_new_base_image == 'true'
+    if: (needs.compare.outputs.is_new_version == 'true' && needs.compare.outputs.rc_source_tag == '') || needs.compare.outputs.is_new_base_image == 'true'
     with:
       registry: ${{ needs.build-push-envs.outputs.image_registry }}
       image_uri: ${{ needs.build-push-envs.outputs.image_uri }}