#	$NetBSD: sets.subr,v 1.52 2006/07/12 13:39:04 lukem Exp $
#

#
# The following variables contain defaults for sets.subr functions and callers:
#	setsdir			path to src/distrib/sets
#	nlists			list of base sets
#	xlists			list of x11 sets
#	obsolete		controls if obsolete files are selected instead
#	lkm			if != "no", enable LKM sets
#	shlib			shared library format (a.out, elf, or "")
#	stlib			static library format (a.out, elf)
#	x11_version		version of XFree86. one of:
#				   ""	cross built from src/x11
#				   3	XFree86 3.x from xsrc/xc
#				   4	XFree86 4.x from xsrc/xfree/xc
#
# The following <bsd.own.mk> variables are exported to the environment:
#	MACHINE	
#	MACHINE_ARCH
#	MACHINE_CPU
#	HAVE_GCC
#	HAVE_GDB
#	TOOLCHAIN_MISSING
#	OBJECT_FMT
# as well as:
#
MKVARS="\
	MKBFD		\
	MKCATPAGES	\
	MKCRYPTO	\
	MKCRYPTO_IDEA	\
	MKCRYPTO_MDC2	\
	MKCRYPTO_RC5	\
	MKCVS		\
	MKGCC		\
	MKGCCCMDS	\
	MKDOC		\
	MKGDB		\
	MKHESIOD	\
	MKINFO		\
	MKIPFILTER	\
	MKINET6		\
	MKISCSI		\
	MKKERBEROS	\
	MKLINT		\
	MKMAN		\
	MKMANPAGES	\
	MKMANZ		\
	MKNLS		\
	MKPAM		\
	MKPF		\
	MKPIC		\
	MKPOSTFIX	\
	MKPROFILE	\
	MKSENDMAIL	\
	MKSHARE		\
	MKSKEY		\
	MKUUCP		\
	MKX11		\
	MKYP		\
	USE_INET6	\
	USE_KERBEROS	\
	USE_YP		\
"
#
# The following variables refer to tools that are used when building sets:
#
: ${AWK:=awk}
: ${CKSUM:=cksum}
: ${COMM:=comm}
: ${DATE:=date}
: ${DB:=db}
: ${EGREP:=egrep}
: ${ENV_CMD:=env}       # ${ENV} is special to sh(1), ksh(1), etc.
: ${FGREP:=fgrep}
: ${FIND:=find}
: ${GREP:=grep}
: ${GZIP_CMD:=gzip}     # ${GZIP} is special to gzip(1)
: ${HOSTNAME:=hostname}
: ${HOST_SH:=sh}
: ${IDENT:=ident}
: ${JOIN:=join}
: ${LS:=ls}
: ${MAKE:=make}
: ${MKTEMP:=mktemp}
: ${MTREE:=mtree}
: ${PASTE:=paste}
: ${PAX:=pax}
: ${PKG_CREATE:=pkg_create}
: ${PRINTF:=printf}
: ${SED:=sed}
: ${SORT:=sort}
: ${STAT:=stat}
: ${TSORT:=tsort}
: ${UNAME:=uname}
: ${WC:=wc}

#
# If printf is a shell builtin command, then we can
# implement cheaper versions of basename and dirname
# that do not involve any fork/exec overhead.
# If printf is not builtin, approximate it using echo,
# and hope there are no weird file names that cause
# some versions of echo to do the wrong thing.
# (Converting to this version of dirname speeded up the
# syspkgdeps script by an order of magnitude, from 68
# seconds to 6.3 seconds on one particular host.)
#
# Note that naive approximations for dirname
# using ${foo%/*} do not do the right thing in cases
# where the result should be "/" or ".".
#
case "$(type printf)" in
*builtin*)
	basename ()
	{
		local bn
		bn="${1##*/}"
		bn="${bn%$2}"
		printf "%s\n" "$bn"
	}
	dirname ()
	{
		local dn
		case "$1" in
		?*/*)	dn="${1%/*}" ;;
		/*)	dn=/ ;;
		*)	dn=. ;;
		esac
		printf "%s\n" "$dn"
	}
	;;
*)
	basename ()
	{
		local bn
		bn="${1##*/}"
		bn="${bn%$2}"
		echo "$bn"
	}
	dirname ()
	{
		local dn
		case "$1" in
		?*/*)	dn="${1%/*}" ;;
		/*)	dn=/ ;;
		*)	dn=. ;;
		esac
		echo "$dn"
	}
	;;
esac

oIFS=$IFS
IFS="
"
for x in $(
${MAKE} -B -f- all <<EOMAKE
.include <bsd.own.mk>
.if (\${MKMAN} == "no" || empty(MANINSTALL:Mmaninstall))
MKMANPAGES=no
.else
MKMANPAGES=yes
.endif
all:
.for i in MACHINE MACHINE_ARCH MACHINE_CPU \
		HAVE_GCC HAVE_GDB OBJECT_FMT TOOLCHAIN_MISSING \
		${MKVARS}
	@echo "export \$i=\${\$i}"
.endfor
.if (\${MKX11:Uno} != "no")
	@echo x11_version=""
.else
	@echo x11_version=4
.endif

EOMAKE
); do
#	echo 1>&2 "DEBUG: read $x"
	eval $x
done
IFS=$oIFS

setsdir=${0%/*}
nlists="base comp etc games man misc text"
case $x11_version in
3)	xlists="xbase3 xcomp3 xcontrib3 xfont3 xmisc3 xserver3" ;;
4)	xlists="xbase4 xcomp4 xcontrib4 xfont4 xmisc4 xserver4" ;;
"")	xlists="xbase xcomp xetc xfont xserver" ;;
*)	xlists="" ;;	# unknown!
esac
obsolete=0
lkm=yes
if [ "${MACHINE}" = "evbppc" ]; then
	lkm=no				# Turn off LKMs for some ports.
fi
# Determine lib type. Do this first so stlib also gets set.
if [ "${OBJECT_FMT}" = "ELF" ]; then
	shlib=elf
else
	shlib=aout
fi
stlib=$shlib
# Now check for MKPIC or specials and turn off shlib if need be.
if [ "${MKPIC}" = "no" ]; then
	shlib=no
fi
if [ "${MACHINE_ARCH}" = "m68000" ]; then
	shlib=no			# Turn off shlibs for some ports.
fi

#
# list_set_files setfile [...]
# 
# Produce a packing list for setfile(s).
# In each file, a record consists of a path and a System Package name,
# separated by whitespace. E.g.,
#
# 	# $NetBSD: sets.subr,v 1.52 2006/07/12 13:39:04 lukem Exp $
# 	.			base-sys-root	[keyword[,...]]
# 	./altroot		base-sys-root
# 	./bin			base-sys-root
# 	./bin/[			base-util-root
# 	./bin/cat		base-util-root
#		[...]
#
# A # in the first column marks a comment.
#
# If ${obsolete} != 0, only entries with an "obsolete" keyword will
# be printed.  All other keywords must be present.
#
# The third field is an optional comma separated list of keywords to
# control if a record is printed; every keyword listed must be enabled
# for the record to be printed.  The following keywords are available:
#	dummy			dummy entry (ignored)
#	obsolete		file is obsolete, and only printed if 
#				${obsolete} != 0
#
#	bfd			${MKBFD} != no
#	catpages		${MKCATPAGES} != no
#	crypto			${MKCRYPTO} != no
#	crypto_idea		${MKCRYPTO_IDEA} != no
#	crypto_mdc2		${MKCRYPTO_MDC2} != no
#	crypto_rc5		${MKCRYPTO_RC5} != no
#	cvs			${MKCVS} != no
#	doc			${MKDOC} != no
#	gcc			${MKGCC} != no
#	gcccmds			${MKGCCCMDS} != no
#	gdb			${MKGDB} != no
#	hesiod			${MKHESIOD} != no
#	info			${MKINFO} != no
#	ipfilter		${MKIPFILTER} != no
#	inet6			${MKINET6} != no
#	iscsi			${MKISCSI} != no
#	kerberos		${MKKERBEROS} != no
#	lint			${MKLINT} != no
#	man			${MKMAN} != no
#	manz			${MKMANZ} != no
#	nls			${MKNLS} != no
#	pam			${MKPAM} != no
#	pf			${MKPF} != no
#	postfix			${MKPOSTFIX} != no
#	profile			${MKPROFILE} != no
#	sendmail		${MKSENDMAIL} != no
#	share			${MKSHARE} != no
#	skey			${MKSKEY} != no
#	uucp			${MKUUCP} != no
#	yp			${MKYP} != no
#
#	gcc=<n>			<n> = value of ${HAVE_GCC}
#	gdb=<n>			<n> = value of ${HAVE_GDB}
#
#	use_inet6		${USE_INET6} != no
#	use_kerberos		${USE_KERBEROS} != no
#	use_yp			${USE_YP} != no
#
#	.cat			if ${MKMANZ} != "no" && ${MKCATPAGES} != "no"
#				  automatically append ".gz" to the filename
#
#	.man			if ${MKMANZ} != "no" && ${MKMAN} != "no"
#				  automatically append ".gz" to the filename
#
list_set_files()
{
	for setname; do
		list_set_lists $setname
	done | xargs cat | \
	${AWK} -v obsolete=${obsolete} '
		BEGIN {
			if (obsolete)
				wanted["obsolete"] = 1
		
			split("'"${MKVARS}"'", needvars)
			for (vi in needvars) {
				nv = needvars[vi]
				kw = tolower(nv)
				sub(/^mk/, "", kw)
				if (ENVIRON[nv] != "no")
					wanted[kw] = 1 
			}

			if ("'"${TOOLCHAIN_MISSING}"'" != "yes") {
				wanted["gcc=" "'"${HAVE_GCC}"'"] = 1
				wanted["gdb=" "'"${HAVE_GDB}"'"] = 1
			}
			if (("man" in wanted) && ("catpages" in wanted))
				wanted[".cat"] = 1
			if (("man" in wanted) && ("manpages" in wanted))
				wanted[".man"] = 1
		}

		/^#/ {
			next;
		}

		NF > 2 && $3 != "-" {
			split($3, keywords, ",")
			show = 1
			haveobs = 0
			for (ki in keywords) {
				kw = keywords[ki]
				if (("manz" in wanted) &&
				    (kw == ".cat" || kw == ".man"))
					$1 = $1 ".gz"
				if (! (kw in wanted))
					show = 0
				if (kw == "obsolete")
					haveobs = 1
			}
			if (obsolete && ! haveobs)
				next
			if (show)
				print
			next
		}

		{
			if (! obsolete)
				print
		}'

}

#
# list_set_lists setname
# 
# Print to stdout a list of files, one filename per line, which
# concatenate to create the packing list for setname. E.g.,
#
# 	.../lists/base/mi
# 	.../lists/base/rescue.mi
# 	.../lists/base/md.i386
#		[...]
#
# For a given setname $set, the following files may be selected from
# .../list/$set:
#	mi
#	ad.${MACHINE_ARCH}
# (or)	ad.${MACHINE_CPU}
#	ad.${MACHINE_CPU}.shl
#	md.${MACHINE}.${MACHINE_ARCH}
# (or)	md.${MACHINE}
#	stl.mi
#	stl.stlib
#	shl.mi
#	shl.shlib
#	lkm.mi			if ${lkm} != no
#	rescue.shl
#	rescue.${MACHINE}
#	rescue.ad.${MACHINE_ARCH}
# (or)	rescue.ad.${MACHINE_CPU}
# 	rescue.ad.${MACHINE_CPU}.shl
#
# Environment:
# 	shlib
# 	stlib
#
list_set_lists()
{
	setname=$1

	setdir=$setsdir/lists/$setname
	echo $setdir/mi
	if [ "${MACHINE}" != "${MACHINE_ARCH}" ]; then
		# Prefer an ad.${MACHINE_ARCH} over an ad.${MACHINE_CPU},
		# since the arch-specific one will be more specific than
		# the cpu-specific one.
		if [ -f $setdir/ad.${MACHINE_ARCH} ]; then
			echo $setdir/ad.${MACHINE_ARCH}
		elif [ -f $setdir/ad.${MACHINE_CPU} ]; then
			echo $setdir/ad.${MACHINE_CPU}
		fi
		if [ "$shlib" != "no" -a \
		     -f $setdir/ad.${MACHINE_CPU}.shl ]; then
			echo $setdir/ad.${MACHINE_CPU}.shl
		fi
	fi
	if [ -f $setdir/md.${MACHINE}.${MACHINE_ARCH} ]; then
		echo $setdir/md.${MACHINE}.${MACHINE_ARCH}
	elif [ -f $setdir/md.${MACHINE} ]; then
		echo $setdir/md.${MACHINE}
	fi
	if [ -f $setdir/stl.mi ]; then
		echo $setdir/stl.mi
	fi
	if [ -f $setdir/stl.${stlib} ]; then
		echo $setdir/stl.${stlib}
	fi
	if [ "$shlib" != "no" ]; then
		if [ -f $setdir/shl.mi ]; then
			echo $setdir/shl.mi
		fi
		if [ -f $setdir/shl.${shlib} ]; then
			echo $setdir/shl.${shlib}
		fi
	fi
	if [ "$lkm" != "no" ]; then
		if [ -f $setdir/lkm.mi ]; then
			echo $setdir/lkm.mi
		fi
	fi

	if [ -f $setdir/rescue.mi ]; then
		echo $setdir/rescue.mi
	fi
	if [ -f $setdir/rescue.${MACHINE} ]; then
		echo $setdir/rescue.${MACHINE}
	fi
	if [ "${MACHINE}" != "${MACHINE_ARCH}" ]; then
		# Prefer a rescue.ad.${MACHINE_ARCH} over a
		# rescue.ad.${MACHINE_CPU}, since the arch-
		# specific one will be more specific than the
		# cpu-specific one.
		if [ -f $setdir/rescue.ad.${MACHINE_ARCH} ]; then
			echo $setdir/rescue.ad.${MACHINE_ARCH}
		elif [ -f $setdir/rescue.ad.${MACHINE_CPU} ]; then
			echo $setdir/rescue.ad.${MACHINE_CPU}
		fi
		if [ "$shlib" != "no" -a \
		     -f $setdir/rescue.ad.${MACHINE_CPU}.shl ]; then
			echo $setdir/rescue.ad.${MACHINE_CPU}.shl
		fi
	fi
}

# arch_to_cpu mach
#
# Print the ${MACHINE_CPU} for ${MACHINE_ARCH}=mach,
# as determined by <bsd.own.mk>.
#
arch_to_cpu()
{
	MACHINE_ARCH=${1} ${MAKE} -f- all <<EOMAKE
.include <bsd.own.mk>
all:
	@echo \${MACHINE_CPU}
EOMAKE
}

# arch_to_endian mach
#
# Print the ${TARGET_ENDIANNESS} for ${MACHINE_ARCH}=mach,
# as determined by <bsd.endian.mk>.
#
arch_to_endian()
{
	MACHINE_ARCH=${1} ${MAKE} -f- all <<EOMAKE
.include <bsd.endian.mk>
all:
	@echo \${TARGET_ENDIANNESS}
EOMAKE
}