Merge pull request containers#5066 from cevich/fix_gate_wrong_commit

Cirrus: Fix gate task + make lint|validate

.cirrus.yml

@@ -93,7 +93,6 @@ gating_task:
         CIRRUS_WORKING_DIR: "/usr/src/libpod"
         GOPATH: "/go"
         GOSRC: "/go/src/github.com/containers/libpod"
-        EPOCH_TEST_COMMIT: "${CIRRUS_BASE_SHA}"
 
     # Runs within Cirrus's "community cluster"
     container:
@@ -103,6 +102,16 @@ gating_task:
 
     timeout_in: 20m
 
+    # Custom cloning is required to satisfy lint/validation needs
+    clone_script: |
+        git clone --recursive --branch=$DEST_BRANCH https://x-access-token:${CIRRUS_REPO_CLONE_TOKEN}@github.com/${CIRRUS_REPO_FULL_NAME}.git $CIRRUS_WORKING_DIR
+        git remote update origin
+        if [[ -n "$CIRRUS_PR" ]]; then # running for a PR
+            git fetch origin pull/$CIRRUS_PR/head:pull/$CIRRUS_PR
+            git checkout pull/$CIRRUS_PR
+        fi
+        git reset --hard $CIRRUS_CHANGE_IN_REPO
+
     # Don't bother going further if something is down
     networking_script: '${CIRRUS_WORKING_DIR}/${SCRIPT_BASE}/networking.sh'
 

Makefile

@@ -3,7 +3,7 @@ export GOPROXY=https://proxy.golang.org
 
 GO ?= go
 DESTDIR ?=
-EPOCH_TEST_COMMIT ?= $(shell git merge-base HEAD $${DEST_BRANCH:-master})
+EPOCH_TEST_COMMIT ?= $(shell git merge-base $${DEST_BRANCH:-master} HEAD)
 HEAD ?= HEAD
 CHANGELOG_BASE ?= HEAD~
 CHANGELOG_TARGET ?= HEAD
@@ -132,6 +132,9 @@ for cmd in sorted(cmds):
 endef
 export PRINT_HELP_PYSCRIPT
 
+# Dereference variable $(1), return value if non-empty, otherwise raise an error.
+err_if_empty = $(if $(strip $($(1))),$(strip $($(1))),$(error Required variable $(1) value is undefined, whitespace, or empty))
+
 .PHONY: help
 help:
 	@$(PYTHON) -c "$$PRINT_HELP_PYSCRIPT" < $(MAKEFILE_LIST)
@@ -146,6 +149,7 @@ endif
 
 .PHONY: lint
 lint: golangci-lint
+	@echo "Linting vs commit '$(call err_if_empty,EPOCH_TEST_COMMIT)'"
 ifeq ($(PRE_COMMIT),)
 	@echo "FATAL: pre-commit was not found, check https://pre-commit.com/ about installing it." >&2
 	@exit 2
@@ -531,6 +535,7 @@ uninstall:
 
 .PHONY: .gitvalidation
 .gitvalidation: .gopathok
+	@echo "Validating vs commit '$(call err_if_empty,EPOCH_TEST_COMMIT)'"
 	GIT_CHECK_EXCLUDE="./vendor:docs/make.bat" $(GOBIN)/git-validation -run DCO,short-subject,dangling-whitespace -range $(EPOCH_TEST_COMMIT)..$(HEAD)
 
 .PHONY: install.tools