From 5c2ec7eecf7a3a9856fa25b951bbcf473a08d002 Mon Sep 17 00:00:00 2001
From: Alejandro Colomar <alx.manpages@gmail.com>
Date: Mon, 31 Jan 2022 00:33:27 +0100
Subject: Makefile: analyze-groff, analyze: Add target to run groff CHECKSTYLE
 for manual pages

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
---
 Makefile | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 72cbbc5..139a483 100644
--- a/Makefile
+++ b/Makefile
@@ -37,6 +37,7 @@ manext      := \.[67]
 MAN       := $(sort $(shell find $(MANDIR)     -type f | grep '$(manext)$$'))
 UNITS_h   := $(sort $(shell find $(INCLUDEDIR) -type f | grep '\.h$$'))
 UNITS_c   := $(sort $(shell find $(SRCDIR)     -type f | grep '\.c$$'))
+MAN_cks   := $(patsubst $(MANDIR)/%,$(builddir)/%.cks.touch,$(MAN))
 UNITS_ckp := $(patsubst $(SRCDIR)/%.c,$(builddir)/%.ckp.touch,$(UNITS_c))
 UNITS_ct  := $(patsubst $(SRCDIR)/%.c,$(builddir)/%.ct.touch,$(UNITS_c))
 UNITS_cpl := $(patsubst $(SRCDIR)/%.c,$(builddir)/%.cpl.touch,$(UNITS_c))
@@ -53,7 +54,7 @@ GAMES_cck := $(patsubst $(builddir)/%.o,$(builddir)/%.cck.touch,$(GAMES_o))
 GAMES     := $(patsubst %.o,%,$(GAMES_o))
 _games    := $(patsubst $(GAMESDIR)/%,$(_gamesdir)/%,$(GAMES))
 _man      := $(patsubst $(MANDIR)/%,$(_mandir)/%,$(MAN))
-analysis   := checkpatch clang-tidy cppcheck cpplint iwyu
+analysis   := checkpatch clang-tidy cppcheck cpplint groff iwyu
 stages     := cpp cc as ld
 modules    := chessboard chess
 submodules := games man
@@ -93,6 +94,13 @@ EXTRA_CPPLINTFLAGS   :=
 CPPLINTFLAGS         := $(DEFAULT_CPPLINTFLAGS)
 CPPLINTFLAGS         += $(EXTRA_CPPLINTFLAGS)
 
+DEFAULT_GROFFFLAGS := -man
+DEFAULT_GROFFFLAGS += -rCHECKSTYLE=3
+DEFAULT_GROFFFLAGS += -z
+EXTRA_GROFFFLAGS   :=
+GROFFFLAGS         := $(DEFAULT_GROFFFLAGS)
+GROFFFLAGS         += $(EXTRA_GROFFFLAGS)
+
 DEFAULT_IWYUFLAGS := -Xiwyu --no_fwd_decls
 EXTRA_IWYUFLAGS   :=
 IWYUFLAGS         := $(DEFAULT_IWYUFLAGS)
@@ -141,6 +149,7 @@ CHECKPATCH := checkpatch
 CLANG-TIDY := clang-tidy
 CPPCHECK   := cppcheck
 CPPLINT    := cpplint
+GROFF      := groff
 IWYU       := iwyu
 CC  := gcc
 CPP := gcc -E $(CFLAGS)
@@ -199,6 +208,11 @@ $(UNITS_cpl): $(builddir)/%.cpl.touch: $(SRCDIR)/%.c Makefile \
 	$(CPPLINT) $(CPPLINTFLAGS) $< >/dev/null
 	touch $@
 
+$(MAN_cks): $(builddir)/%.cks.touch: $(MANDIR)/% Makefile | $$(@D)/.
+	$(info GROFF CHECKSTYLE	$@)
+	$(GROFF) $(GROFFFLAGS) $<
+	touch $@
+
 $(UNITS_iwyu): $(builddir)/%.iwyu.touch: $(SRCDIR)/%.c Makefile \
                                          $(builddir)/%.d | $$(@D)/.
 	$(info IWYU		$@)
@@ -245,6 +259,7 @@ analyze-checkpatch: $(UNITS_ckp)
 analyze-clang-tidy: $(UNITS_ct)
 analyze-cppcheck:   $(GAMES_cck)
 analyze-cpplint:    $(UNITS_cpl)
+analyze-groff:      $(MAN_cks)
 analyze-iwyu:       $(UNITS_iwyu)
 analyze: $(analyze)
 
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