ci: check git status

Author: dkoshkin

.github/workflows/checks.yml

@@ -171,6 +171,9 @@ jobs:
         env:
           SKIP: no-commit-to-branch,golangci-lint,actionlint-system
 
+      - name: Run git status and fail on a dirty state
+        run: devbox run -- make git.status
+
   lint-test-helm:
     runs-on: ubuntu-22.04
     steps:

make/repo.mk

@@ -17,3 +17,10 @@ ifneq ($(shell git status --porcelain 2>/dev/null; echo $$?), 0)
 else
 	export GIT_TREE_STATE :=
 endif
+
+.PHONY: git.status
+git.status: ## Returns exit code of 1 if the git tree is dirty
+	@if [ -n "$(GIT_TREE_STATE)" ]; then \
+		git status --porcelain 2>/dev/null; \
+		exit 1; \
+	fi