Fix the setup-go Github action caching

I noticed that the Github Action caching wasn't working, so I added this
setting to fix it.

https://github.com/actions/setup-go#caching-dependency-files-and-build-outputs

If the cache is populated the tests now take 5 minutes to run (down from
18m).

The one downside is that caching will also cache the test results (along
with the dependencies) so this change adds a `--count=1` to the `go
test` commands to ensure that the go test doesn't use a cached result.

Author: adrianmoisey

.github/workflows/ci.yaml

@@ -15,15 +15,19 @@ jobs:
   test-and-verify:
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go
-        uses: actions/[email protected]
-        with:
-          go-version: '1.22.2'
-
       - uses: actions/[email protected]
         with:
           path: ${{ env.GOPATH }}/src/k8s.io/autoscaler
 
+      - name: Set up Go
+        uses: actions/[email protected]
+        with:
+          go-version: '1.22.2'
+          cache-dependency-path: |
+             ${{ env.GOPATH}}/src/k8s.io/autoscaler/cluster-autoscaler/go.sum
+             ${{ env.GOPATH}}/src/k8s.io/autoscaler/vertical-pod-autoscaler/go.sum
+             ${{ env.GOPATH}}/src/k8s.io/autoscaler/vertical-pod-autoscaler/e2e/go.sum
+
       - name: Apt-get
         run: sudo apt-get install libseccomp-dev -qq
 

hack/for-go-proj.sh

@@ -52,7 +52,7 @@ for project_name in ${PROJECT_NAMES[*]}; do
         if [[ -n $(find . -name "Godeps.json") ]]; then
           godep go test -race $(go list ./... | grep -v /vendor/ | grep -v vertical-pod-autoscaler/e2e)
         else
-          go test -race $(go list ./... | grep -v /vendor/ | grep -v vertical-pod-autoscaler/e2e | grep -v cluster-autoscaler/apis)
+          go test -count=1  -race $(go list ./... | grep -v /vendor/ | grep -v vertical-pod-autoscaler/e2e | grep -v cluster-autoscaler/apis)
         fi
         ;;
       *)
@@ -71,6 +71,6 @@ if [ "${CMD}" = "build" ] || [ "${CMD}" == "test" ]; then
   # Default analyzers that go test runs according to https://github.com/golang/go/blob/52624e533fe52329da5ba6ebb9c37712048168e0/src/cmd/go/internal/test/test.go#L649
   # This doesn't include the `printf` analyzer until cluster-autoscaler libraries are updated.
   ANALYZERS="atomic,bool,buildtags,directive,errorsas,ifaceassert,nilfunc,slog,stringintconv,tests"
-  go test ./... -vet="${ANALYZERS}"
+  go test -count=1 ./... -vet="${ANALYZERS}"
   popd
 fi