Merge pull request #5467 from twz123/actions-cache-optimizations

GitHub Actions cache optimizations

.gitattributes

@@ -0,0 +1,2 @@
+go.mod text eol=lf
+go.sum text eol=lf

.github/workflows/build-k0s.yml

@@ -80,9 +80,9 @@ jobs:
       - name: "Cache :: GOMODCACHE"
         uses: actions/cache@v4
         with:
-          key: build-k0s-${{ inputs.target-os }}-${{ inputs.target-arch }}-gomodcache-${{ hashFiles('go.sum') }}
-          path: |
-            build/cache/go/mod
+          key: build-k0s-gomodcache-${{ hashFiles('go.sum') }}
+          path: build/cache/go/mod
+          enableCrossOsArchive: true
 
       - name: "Build :: k0s"
         run: |

.github/workflows/go.yml

@@ -182,8 +182,8 @@ jobs:
         uses: actions/cache@v4
         with:
           key: unittests-k0s-gomodcache-${{ hashFiles('go.sum') }}
-          path: |
-            build/cache/go/mod
+          path: build/cache/go/mod
+          enableCrossOsArchive: true
 
       - name: Run unit tests
         run: make check-unit $UNITTEST_EXTRA_ARGS

.github/workflows/pr-closed.yaml

@@ -0,0 +1,33 @@
+name: Pull request closed
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  # Based on https://github.com/actions/cache/blob/v4.2.0/tips-and-workarounds.md#force-deletion-of-caches-overriding-default-cache-eviction-policy
+  cleanup-actions-caches:
+    name: Cleanup GitHub Actions caches
+    runs-on: ubuntu-latest
+    permissions:
+      # `actions:write` permission is required to delete caches
+      #   See also: https://docs.github.com/en/rest/actions/cache?apiVersion=2022-11-28#delete-a-github-actions-cache-for-a-repository-using-a-cache-id
+      actions: write
+      contents: read
+
+    steps:
+      - name: Cleanup
+        env:
+          GH_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          GH_REPO: "${{ github.repository }}"
+          BRANCH: "refs/pull/${{ github.event.pull_request.number }}/merge"
+        run: |
+          set -euo pipefail
+          gh api -X GET /repos/{owner}/{repo}/actions/caches -f ref="$BRANCH" --paginate -q '.actions_caches[] | "\(.id) \(.key)"' | {
+            fail=0
+            while read -r id key; do
+              echo Deleting cache with ID $id: $key
+              gh api -X DELETE /repos/{owner}/{repo}/actions/caches/"$id" || fail=1
+            done
+            [ $fail -eq 0 ]
+          }