GNUmakefile: Pull lint/c, lint/all, and lint/unknown out into separate shell scripts

1 files changed, 6 insertions, 40 deletions

diff --git a/GNUmakefile b/GNUmakefile
index ab28ede..3abe629 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -86,8 +86,6 @@ $(foreach t,$(build_types),$(foreach p,$(platforms),build/$p-$t/check)): build/%
 -include build-aux/sources.mk
 sources_all := $(foreach v,$(filter sources_%,$(.VARIABLES)),$($v))
 
-get_dscname = sed -n '1,3{ /^\#!/d; /^<!--$$/d; /-\*- .* -\*-/d; s,[/*\# ]*,,; s/ - .*//;p; q; }'
-
 build-aux/venv: build-aux/requirements.txt
 	python3 -m venv $@
 	$@/bin/pip install -r $<
@@ -102,46 +100,14 @@ lint/python3: lint/%: build-aux/venv
 	./build-aux/venv/bin/mypy --strict --scripts-are-modules $(sources_$*)
 	./build-aux/venv/bin/black --check $(sources_$*)
 	./build-aux/venv/bin/isort --check $(sources_$*)
-lint/c: lint/%:
-	@for filename in $(filter %.h,$(sources_$*)); do \
-	    dscname=$$($(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; exit $$r
+lint/c: lint/%: build-aux/lint-h build-aux/get-dscname
+	./build-aux/lint-h $(filter %.h,$(sources_$*))
 lint/make lint/cmake lint/gitignore lint/ini lint/9p lint/markdown: lint/%:
 	@:
-lint/unknown: lint/%:
-	@printf "%s: cannot lint unknown file type\n" $(sources_$*) >&2
-lint/all: lint/%:
-	$(eval export sources_$*)
-	@find $$(printf '%s\n' $${sources_$*} | grep -vE '^lib9p/tests/[^/]+/static/') \
-	    -maxdepth 0 -type f | \
-	{ r=0; while read -r filename; do \
-	    if ! grep -E -q 'Copyright \(C\) 202[4-9]((-|, )202[5-9])*  Luke T. Shumaker' $$filename; then \
-	        echo "$$filename is missing a copyright statement"; r=1; \
-	    fi; \
-	    if ! grep -q ' SPDX-License-Identifier[:] ' $$filename; then \
-	        echo "$$filename is missing an SPDX-License-Identifier"; r=1; \
-	    fi; \
-	    dscname_act=$$($(get_dscname) $$filename); \
-	    dscname_exp=$$(echo "$$filename" | sed \
-	        -e 's,.*/config/,,' \
-	        -e 's,.*/config\.h$$,config.h,' \
-	        -e 's,.*include/,,' \
-	        -e 's/\.wip$$//'); \
-	    if [ "$$dscname_act" != "$$dscname_exp" ] && [ "cmd/$$dscname_act" != "$$dscname_exp" ]; then \
-	        echo "$$filename self-identifies as $$dscname_act (expected $$dscname_exp)"; r=1; \
-	    fi; \
-	    if grep -n --color=auto "$$(printf '\\S\t')" $$filename; then \
-	        echo "$$filename uses tabs for alignment"; r=1; \
-	    fi; \
-	done; exit $$r; }
+lint/unknown: lint/%: build-aux/lint-unknown
+	./build-aux/lint-unknown $(sources_$*)
+lint/all: lint/%: build-aux/lint-generic build-aux/get-dscname
+	./build-aux/lint-generic $$(printf '%s\n' $(sources_$*) | grep -vE '^lib9p/tests/[^/]+/static/')
 .PHONY: lint lint/%
 
 # `format` #########