ci: make canary

Makefile

@@ -110,30 +110,40 @@ dev:
 	fi
 
 
-# Merge local feat into canary, push canary, then restore the previous branch.
+# Merge the current local branch into canary, push canary, then restore it.
-# Does not leave the working tree on canary when started from another branch.
+# Dirty worktrees are auto-stashed and restored after the operation.
 canary:
 	@set -e; \
 	if ! git rev-parse --git-dir >/dev/null 2>&1; then \
 		echo "Error: not a git repository"; exit 1; \
 	fi; \
-	if [ -n "$$(git status --porcelain)" ]; then \
-		echo "Error: working tree is dirty; commit or stash first"; exit 1; \
-	fi; \
 	orig=$$(git rev-parse --abbrev-ref HEAD); \
 	if [ "$$orig" = "HEAD" ]; then \
 		echo "Error: detached HEAD; checkout a branch first"; exit 1; \
 	fi; \
+	if [ "$$orig" = "canary" ]; then \
+		echo "Error: already on canary; checkout a source branch first"; exit 1; \
+	fi; \
+	stashed=0; \
+	if [ -n "$$(git status --porcelain)" ]; then \
+		echo "Working tree is dirty; stashing local changes..."; \
+		git stash push -u -m "make canary auto-stash from $$orig"; \
+		stashed=1; \
+	fi; \
 	cleanup() { \
 		cur=$$(git rev-parse --abbrev-ref HEAD 2>/dev/null || true); \
 		if [ "$$cur" != "$$orig" ]; then \
 			echo "Restoring branch $$orig..."; \
 			git checkout -q "$$orig"; \
 		fi; \
+		if [ "$$stashed" = "1" ]; then \
+			echo "Restoring stashed local changes..."; \
+			git stash pop; \
+		fi; \
 	}; \
 	trap cleanup EXIT; \
-	echo "Merging feat -> canary (started from $$orig)..."; \
+	echo "Merging $$orig -> canary..."; \
 	git checkout canary; \
-	git merge --no-edit feat; \
+	git merge --no-edit "$$orig"; \
 	git push -u origin canary; \
-	echo "Done: feat merged into canary and pushed."
+	echo "Done: $$orig merged into canary and pushed."