# $Id: man.mk,v 1.29 2024/02/19 00:06:19 sjg Exp $

# should be set properly in sys.mk
_this ?= ${.PARSEFILE:S,bsd.,,}

.if !target(__${_this}__)
__${_this}__: .NOTMAIN

OPTIONS_DEFAULT_NO += CMT2DOC

.include <init.mk>
.include <options.mk>

# unlike bsd.man.mk we handle 3 approaches
# 1. install unformated nroff (default)
# 2. install formatted pages
# 3. install formatted pages but with extension of .0
# sadly we cannot rely on a shell that supports ${foo#...} and ${foo%...}
# so we have to use sed(1).

# set MANTARGET=cat for formatted pages
MANTARGET ?=	man
# set this to .0 for same behavior as bsd.man.mk
MCATEXT ?=

NROFF ?=	nroff
MANDIR ?=	/usr/share/man
MANDOC ?= man

MAN_SUFFIXES?= .1 .2 .3 .4 .5 .6 .7 .8 .9
.SUFFIXES: ${MAN_SUFFIXES}
.if ${MANTARGET} == "cat"
.SUFFIXES: ${MAN_SUFFIXES:S,.,.cat,}
.endif

${MAN_SUFFIXES:@s@$s${s:S,.,.cat,}@}:
	@echo "${NROFF} -${MANDOC} ${.IMPSRC} > ${.TARGET:T}"
	@${NROFF} -${MANDOC} ${.IMPSRC} > ${.TARGET:T}.new && \
	mv ${.TARGET:T}.new ${.TARGET:T}


.if !empty(MANOWN)
MAN_INSTALL_OWN ?= -o ${MANOWN} -g ${MANGRP}
MAN_CHOWN ?= chown
.else
MAN_CHOWN = :
.endif

MINSTALL = ${INSTALL} ${COPY} ${MAN_INSTALL_OWN} -m ${MANMODE}

.if defined(MAN) && !empty(MAN)

.if ${MANTARGET} == "cat"
MANALL ?= ${MAN:T:@p@${p:R}.cat${p:E}@}
.else
MANALL ?= ${MAN}
.endif

.if ${MK_CMT2DOC} == "yes"
# use cmt2doc.py to extract manpages from source
CMT2DOC ?= cmt2doc.py
# -m  produces man(7)
# -mm produces mdoc(7)
CMT2DOC_FLAGS ?= -pm
CMT2DOC_OPTS ?=  ${CMT2DOC_ORGOPT} -S${.TARGET:E}
CMT2DOC_SUFFIXES += .c .h .sh .pl .py

.SUFFIXES: ${CMT2DOC_SUFFIXES}

${CMT2DOC_SUFFIXES:@s@${MAN_SUFFIXES:@m@$s$m@}@}:
	@echo "${CMT2DOC} ${.IMPSRC} > ${.TARGET:T}"
	@${CMT2DOC} ${CMT2DOC_FLAGS} ${CMT2DOC_OPTS} ${.IMPSRC} > ${.TARGET:T}.new && \
	mv ${.TARGET:T}.new ${.TARGET:T}

.endif

# none of this is relevant unless doing maninstall
.if make(*install)
_mandir = ${DESTDIR}${MANDIR}/${MANTARGET}`echo $$page | sed -e 's/.*\.cat/./' -e 's/.*\.//'`
.if ${MANTARGET} == "cat"
_mfromdir ?= .
.if ${MCATEXT} == ""
_minstpage = `echo $$page | sed 's/\.cat/./'`
.else
_minstpage = `echo $$page | sed 's/\.cat.*//'`${MCATEXT}
.endif
.endif
.if target(${MAN:[1]})
_mfromdir ?= .
.endif
_mfromdir ?= ${.CURDIR}
_minstpage ?= $${page}
.endif

.if defined(MANZ)
# chown and chmod are done afterward automatically
MCOMPRESS_CMD ?= gzip -cf
MCOMPRESS_EXT ?= .gz

_MANZ_USE:	.USE
	@${MCOMPRESS_CMD} ${.ALLSRC} > ${.TARGET}

.for _page in ${MANALL}
${_page:T}${MCOMPRESS_EXT}: ${_page} _MANZ_USE
.endfor
.endif

.if ${MK_STAGING_MAN} == "yes"
_mansets := ${MAN:E:O:u:M*[1-9]:@s@man$s@}
.if ${MANTARGET} == "cat"
STAGE_AS_SETS += ${_mansets}
_stage_man = stage_as
.else
STAGE_SETS += ${_mansets}
_stage_man = stage_files
.endif
STAGE_TARGETS += ${_stage_man}
.for _page _as in ${MANALL:@x@$x ${x:T:S/.cat/./}@}
${_stage_man}.man${_as:E}: ${_page}
.if target(${_page:T}${MCOMPRESS_EXT:Umanz})
${_man_stage}.man${_as:E}: ${_page:T}${MCOMPRESS_EXT}
.endif
STAGE_DIR.man${_as:E} ?= ${STAGE_OBJTOP}${MANDIR}/${MANTARGET}${_as:E}${MANSUBDIR}
.if ${MANTARGET} == "cat"
STAGE_AS_${_page} = ${_as}
.endif
.endfor
.if !defined(NO_MLINKS) && !empty(MLINKS)
STAGE_SETS += mlinks
STAGE_TARGETS += stage_links
STAGE_LINKS.mlinks := ${MLINKS:M*.[1-9]:@f@${f:S,^,${MANDIR}/${MANTARGET}${f:E}${MANSUBDIR}/,}@}
stage_links.mlinks: ${_mansets:@s@stage_files.$s@}
.endif
.endif

.endif

maninstall:
.if defined(MANALL) && !empty(MANALL)
	@for page in ${MANALL:T}; do \
		test -s ${_mfromdir}/$$page || continue; \
		dir=${_mandir}; \
		test -d $$dir || ${INSTALL} -d ${MAN_INSTALL_OWN} -m 775 $$dir; \
		instpage=$${dir}${MANSUBDIR}/${_minstpage}${MCOMPRESSSUFFIX}; \
		if [ X"${MCOMPRESS}" = X ]; then \
			echo ${MINSTALL} ${_mfromdir}/$$page $$instpage; \
			${MINSTALL} ${_mfromdir}/$$page $$instpage; \
		else \
			rm -f $$instpage; \
			echo ${MCOMPRESS} ${_mfromdir}/$$page \> $$instpage; \
			${MCOMPRESS} ${_mfromdir}/$$page > $$instpage; \
			${MAN_CHOWN} ${MANOWN}:${MANGRP} $$instpage; \
			chmod ${MANMODE} $$instpage; \
		fi \
	done
.if defined(MLINKS) && !empty(MLINKS)
	@set ${MLINKS}; \
	while test $$# -ge 2; do \
		page=$$1; \
		shift; \
		dir=${_mandir}; \
		l=${_minstpage}${MCOMPRESSSUFFIX}; \
		page=$$1; \
		shift; \
		dir=${_mandir}; \
		t=$${dir}${MANSUBDIR}/${_minstpage}${MCOMPRESSSUFFIX}; \
		echo $$t -\> $$l; \
		rm -f $$t; \
		ln -s $$l $$t; \
	done
.endif
.endif

.if defined(MANALL) && !empty(MANALL)
manall: ${MANALL}
all: manall
.endif

.if defined(CLEANMAN) && !empty(CLEANMAN)
cleandir: cleanman
cleanman:
	rm -f ${CLEANMAN}
.endif
.endif