Add golangci-lint support to Gitlab CI.

.gitlab-ci.yml

@@ -5,6 +5,7 @@
 
 image: golang:latest
 
+
 variables:
   # Please edit to your GitLab project
   REPO_NAME: salsa.debian.org/mdosch/go-sendxmpp
@@ -26,11 +27,17 @@ stages:
   - release
 
 format:
+  image: registry.gitlab.com/gitlab-org/gitlab-build-images:golangci-lint-alpine
   stage: test
   script:
     - go fmt $(go list ./... | grep -v /vendor/)
     - go vet $(go list ./... | grep -v /vendor/)
     - go test -race $(go list ./... | grep -v /vendor/)
+    # Taken from https://gitlab.com/gitlab-org/gitlab/-/merge_requests/20404/diffs#diff-content-8071267ea32ba69f24a8bd50bcbddf972c295ce3
+    # Use default .golangci.yml file from the image if one is not present in the project root.
+    - '[ -e .golangci.yml ] || cp /golangci/.golangci.yml .'
+    - golangci-lint run --out-format code-climate
+  allow_failure: true
 
 compile:
   stage: build