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tips-and-workarounds.md

@@ -12,7 +12,7 @@ A cache today is immutable and cannot be updated. But some use cases require the
 
   ```yaml
       - name: update cache on every commit
-        uses: actions/cache@v5
+        uses: actions/cache@v3
         with:
           path: prime-numbers
           key: primes-${{ runner.os }}-${{ github.run_id }} # Can use time based key as well
@@ -21,7 +21,7 @@ A cache today is immutable and cannot be updated. But some use cases require the
   ```
 
   Please note that this will create a new cache on every run and hence will consume the cache [quota](./README.md#cache-limits).
-
+  
 ## Use cache across feature branches
 
 Reusing cache across feature branches is not allowed today to provide cache [isolation](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache). However if both feature branches are from the default branch, a good way to achieve this is to ensure that the default branch has a cache. This cache will then be consumable by both feature branches.
@@ -37,8 +37,9 @@ From `v3.2.3` cache is cross-os compatible when `enableCrossOsArchive` input is
 
 ## Force deletion of caches overriding default cache eviction policy
 
-Caches have [branch scope restriction](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache) in place. This means that if caches for a specific branch are using a lot of storage quota, it may result into more frequently used caches from `default` branch getting thrashed. For example, if there are many pull requests happening on a repo and are creating caches, these cannot be used in default branch scope but will still occupy a lot of space till they get cleaned up by [eviction policy](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#usage-limits-and-eviction-policy). But sometime we want to clean them up on a faster cadence so as to ensure default branch is not thrashing.
+Caches have [branch scope restriction](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache) in place. This means that if caches for a specific branch are using a lot of storage quota, it may result into more frequently used caches from `default` branch getting thrashed. For example, if there are many pull requests happening on a repo and are creating caches, these cannot be used in default branch scope but will still occupy a lot of space till they get cleaned up by [eviction policy](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#usage-limits-and-eviction-policy). But sometime we want to clean them up on a faster cadence so as to ensure default branch is not thrashing. In order to achieve this, [gh-actions-cache cli](https://github.com/actions/gh-actions-cache/) can be used to delete caches for specific branches.
 
+This workflow uses `gh-actions-cache` to delete all the caches created by a branch.
 <details>
   <summary>Example</summary>
 
@@ -59,23 +60,29 @@ jobs:
       actions: write
       contents: read
     steps:
+      - name: Check out code
+        uses: actions/checkout@v3
+
       - name: Cleanup
         run: |
-          echo "Fetching list of cache key"
-          cacheKeysForPR=$(gh cache list --ref $BRANCH --limit 100 --json id --jq '.[].id')
+          gh extension install actions/gh-actions-cache
+          
+          REPO=${{ github.repository }}
+          BRANCH=refs/pull/${{ github.event.pull_request.number }}/merge
 
-          ## Setting this to not fail the workflow while deleting cache keys.
+          echo "Fetching list of cache key"
+          cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH | cut -f 1 )
+
+          ## Setting this to not fail the workflow while deleting cache keys. 
           set +e
           echo "Deleting caches..."
           for cacheKey in $cacheKeysForPR
           do
-              gh cache delete $cacheKey
+              gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm
           done
           echo "Done"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GH_REPO: ${{ github.repository }}
-          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge
 ```
 
 </details>