Inject CI workflows before pushing new tags

.forgejo/workflows/mirror-repository.yml

@@ -4,35 +4,39 @@ on:
   schedule:
     - cron: '@hourly'
 
-  push:
-    branches:
-      - 'master'
-
 jobs:
   mirror:
     name: Pull from upstream
     runs-on: x86_64
     container:
       image: 'docker.io/node:20-bookworm'
+    env:
+      upstream: https://git.joeyh.name/git/git-annex.git 
+      destination: {{ vars.DESTINATION }}
+      tags: '10.2024*'
+      token: ${{ secrets.CODE_FORGEJO_TOKEN }}
+      owner: ${{ vars.OWNER }}
     steps:
-      - name: git mirror branches {v*/,}master & tags
+      - name: Comparing tags of upstream and destination
+        run: |
+          git ls-remote $upstream "refs/tags/$tags" | grep -v '\{' | awk '\{print $2\}' | sed 's|refs/tags/||' > upstream_tags
+          git ls-remote $destination "refs/tags/$tags" | grep -v '\{' | awk '\{print $2\}' | sed 's|refs/tags/||' > destination_tags
+          cat upstream_tags destination_tags | tr ' ' '\n' | sort | uniq -u | tr '\n '\t' > missing_tags
+      - name: Fetching missing tags
         run: |
           git init --bare .
-          git remote add origin https://git.joeyh.name/git/git-annex.git 
-          git fetch origin refs/heads/master:refs/mirror/master
-          git ls-remote origin refs/heads/v*/master | while read sha full_ref ; do
-            ref=${full_ref#refs/heads/}
-            git fetch origin $full_ref:refs/mirror/$ref
-            tag=${ref%/master}
-            git fetch origin refs/tags/${tag}*:refs/mirror-tags/${tag}*
-          done
-          if test "${{ vars.TEST }}" != true ; then
-            token=${{ secrets.CODE_FORGEJO_TOKEN }}
-            destination=${{ vars.DESTINATION }}
-            owner=${{ vars.OWNER }}
-          else
-            token=${{ secrets.TEST_FORGEJO_TOKEN }}
-            destination=${{ vars.TEST_DESTINATION }}
-            owner=${{ vars.TEST_OWNER }}
-          fi
-          git push --force https://any:$token@$destination/$owner/git-annex refs/mirror/*:refs/heads/* refs/mirror-tags/*:refs/tags/* --tags   
+          git remote add origin $upstream
+          while read tag; do
+          git fetch origin tag $tag --no-tags
+          done < missing_tags
+      - name: Injecting packaging workflow
+        run: |
+          while read tag; do
+          git checkout $tag
+          git tag -d $tag
+          git checkout ci -- ./forgejo
+          git commit -m 'Inject custom workflow'
+          git tag -a $tag -m $tag
+          done < missing_tags
+      - name: Pushing patched tags
+        run: git push --force https://any:$token@$destination refs/tags/*:refs/tags/* --tags