Update Delete Caches action [ci] (#266)

Author: cdce8p

.github/workflows/cache.yaml

@@ -1,7 +1,7 @@
 name: Delete Caches
 
 on:
-  pull_request:
+  pull_request_target:
     types: [closed]
   workflow_dispatch:
     inputs:
@@ -12,11 +12,42 @@ on:
 
 jobs:
   delete:
-    name: "Delete unused caches (PR #${{ github.event.inputs.pr-number || github.event.number }})"
+    name: Delete caches
     runs-on: ubuntu-latest
     permissions:
       actions: write
+    env:
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: snnaplab/[email protected]
-        with:
-          ref: refs/pull/${{ github.event.inputs.pr-number || github.event.number }}/merge
+      - name: Delete caches
+        run: |
+          ref="refs/pull/${{ github.event.inputs.pr-number || github.event.number }}/merge"
+          sort="last_accessed_at"
+          del_count=0
+
+          res=$(gh api --paginate \
+            -H "Accept: application/vnd.github+json" \
+            /repos/${{ github.repository }}/actions/caches?sort=$sort)
+
+          res_count=$(echo "$res" | jq '.actions_caches | length')
+          if [[ "$res_count" -eq 0 ]]; then break; fi
+
+          targets=$(echo "$res" | jq \
+            --arg ref "$ref" \
+            '.actions_caches[] | select(.ref == $ref)
+              | del(.created_at, .size_in_bytes, .version)')
+          targets_count=$(echo "$targets" | jq -s 'length')
+          if [[ "$targets_count" -eq 0 ]]; then break; fi
+          echo "Found $targets_count caches"
+          echo "$targets"
+
+          for id in $(echo "$targets" | jq '.id'); do
+            echo "Delete cache with id: $id ..."
+            gh api \
+              --method DELETE \
+              -H "Accept: application/vnd.github+json" \
+              /repos/${{ github.repository }}/actions/caches/$id
+            (( del_count += 1 ))
+          done
+
+          echo "Deleted $del_count caches"