Lint that include-guards match the filename

1 files changed, 16 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index 0b22e66..bd4f9cc 100644
--- a/Makefile
+++ b/Makefile
@@ -69,6 +69,9 @@ generate-clean:
 sources_all := $(foreach v,$(filter sources_%,$(.VARIABLES)),$($v))
 
 # lint #############
+
+get_dscname = sed -n '1,3{ /^\#!/d; /^<!--$$/d; /-\*- .* -\*-/d; s,[/*\# ]*,,; s/ - .*//;p; q; }'
+
 lint:
 	$(MAKE) -k $(patsubst sources_%,lint/%,$(filter sources_%,$(.VARIABLES)))
 lint/sh lint/bash: lint/%:
@@ -78,7 +81,17 @@ lint/python3: lint/%:
 	black --check $(sources_$*)
 	isort --check $(sources_$*)
 lint/c: lint/%:
-	@: TODO
+	@for filename in $(filter %.h,$(sources_$*)); do \
+	    dscname=$$($(get_dscname) $$filename); \
+	    guard=$${dscname//'/'/'_'}; \
+	    guard=$${guard//'.'/'_'}; \
+	    guard="_$${guard^^}_"; \
+	    if ! { grep -Fxq "#ifndef $${guard}"      "$$filename" && \
+	           grep -Fxq "#define $${guard}"      "$$filename" && \
+	           grep -Fxq "#endif /* $${guard} */" "$$filename"; }; then \
+	        echo "$$filename does not have $${guard} guard"; r=1; \
+	    fi; \
+	done
 lint/make lint/cmake lint/gitignore lint/ini lint/9p lint/markdown: lint/%:
 	@:
 lint/unknown: lint/%:
@@ -91,9 +104,10 @@ lint/all: lint/%:
 	    if ! grep -q 'Copyright (C) 2024  Luke T. Shumaker' $$filename; then \
 	        echo "$$filename is missing a copyright statement"; r=1; \
 	    fi; \
-	    dscname=$$(sed -n '1,3{ /^#!/d; /^<!--$$/d; /-\*- .* -\*-/d; s,[/*# ]*,,; s/ - .*//;p; q; }' $$filename); \
+	    dscname=$$($(get_dscname) $$filename); \
 	    filename_alt1=$$(echo "$$filename" | sed \
 	        -e 's,^cmd/,,' \
+	        -e 's,.*/config/,,' \
 	        -e 's,.*/include/,,' \
 	        -e 's,^lib9p/idl/,,' \
 	        -e 's/\.wip$$//'); \