xref: /dragonfly/contrib/bmake/boot-strap (revision 6eef5f0c) 
1:
2# NAME:
3#	boot-strap
4#
5# SYNOPSIS:
6#	boot-strap ["options"]
7#	boot-strap --prefix=/opt --install
8#	boot-strap --prefix=$HOME --install-host-target -DWITH_PROG_VERSION
9#	boot-strap ["options"] op=build
10#	boot-strap ["options"] op=install
11#
12# DESCRIPTION:
13#	This script is used to configure/build bmake it builds for
14#	each host-target in a different subdir to keep the src clean.
15#	There is no requirement for an existing make(1).
16#
17#	On successful completion if no '--install' flag is given,
18#	it echos a command to do installation.
19#
20#	The variable "op" defaults to 'all', and is affected by
21#	'--install' flag as above.
22#	Other values include:
23#
24#	configure
25#		Just run 'configure'
26#
27#	build
28#		If 'configure' has not been done, do it, then
29#		run the build script, and finally 'test'.
30#
31#	install
32#		If 'build' has not been done, do it, 'test' then
33#		install.
34#
35#	clean
36#		attempt to clean up
37#
38#	test
39#		run the unit-tests.  Done automatically after 'build'
40#		and before 'install'.
41#
42#	The above are leveraged by a trivial makefile for the benefit
43#	of those that have './configure; make; make install' baked
44#	into them.
45#
46#	Options:
47#
48#	-c "rc"
49#		Pick up settings from "rc".
50#		We look for '.bmake-boot-strap.rc' before processing
51#		options (unless SKIP_RC is set in environment).
52#
53#	--share "share_dir"
54#		Where to put man pages and mk files.
55#		If $prefix ends in $HOST_TARGET, and $prefix/../share
56#		exits, the default will be that rather than $prefix/share.
57#
58#	--mksrc "mksrc"
59#		Indicate where the mk files can be found.
60#		Default is $Mydir/mk
61#
62#	--install
63#		If build and test work, run bmake install.
64#		BINDIR=$prefix/bin
65#		SHAREDIR=$prefix/share
66#
67#	--install-host-target
68#		As for '--install' but BINDIR=$prefix/$HOST_TARGET/bin
69#		This is useful when $prefix/ is shared by multiple
70#		machines.
71#
72#	Flags relevant when installing:
73#
74#	-DWITHOUT_INSTALL_MK
75#		Skip installing mk files.
76#		By default they will be installed to $prefix/share/mk
77#
78#	-DWITH_PROG_VERSION
79#		Install 'bmake' as 'bmake-$MAKE_VERSION'
80#		A symlink will be made as 'bmake' unless
81#		-DWITHOUT_PROG_LINK is set.
82#
83#	Possibly useful configure_args:
84#
85#	--without-meta
86#		disable use of meta mode.
87#
88#	--without-filemon
89#		disable use of filemon(9) which is currently only
90#		available for NetBSD and FreeBSD.
91#
92#	--with-filemon=ktrace
93#		on NetBSD or others with fktrace(2), use ktrace
94#		version of filemon.
95#
96#	--with-filemon="path/to/filemon.h"
97#		enables use of filemon(9) by meta mode.
98#
99#	--with-machine="machine"
100#		set "machine" to override that determined by
101#		machine.sh
102#
103#	--with-force-machine="machine"
104#		force "machine" even if uname(3) provides a value.
105#
106#	--with-machine_arch="machine_arch"
107#		set "machine_arch" to override that determined by
108#		machine.sh
109#
110#	--with-force_machine_arch="machine_arch"
111#		force "machine_arch" to override that determined by
112#		machine.sh
113#
114#	--with-default-sys-path="syspath"
115#		set an explicit default "syspath" which is where bmake
116#		will look for sys.mk and friends.
117#
118# AUTHOR:
119#	Simon J. Gerraty <sjg@crufty.net>
120
121# RCSid:
122#	$Id: boot-strap,v 1.57 2021/10/22 20:32:21 sjg Exp $
123#
124#	@(#) Copyright (c) 2001 Simon J. Gerraty
125#
126#	This file is provided in the hope that it will
127#	be of use.  There is absolutely NO WARRANTY.
128#	Permission to copy, redistribute or otherwise
129#	use this file is hereby granted provided that
130#	the above copyright notice and this notice are
131#	left intact.
132#
133#	Please send copies of changes and bug-fixes to:
134#	sjg@crufty.net
135#
136
137Mydir=`dirname $0`
138. "$Mydir/os.sh"
139case "$Mydir" in
140/*) ;;
141*) Mydir=`cd "$Mydir" && 'pwd'`;;
142esac
143
144Usage() {
145	[ "$1" ] && echo "ERROR: $@" >&2
146	echo "Usage:" >&2
147	echo "$0 [--<configure_arg> ...][<prefix>][--install]" >&2
148	exit 1
149}
150
151Error() {
152	echo "ERROR: $@" >&2
153	exit 1
154}
155
156source_rc() {
157	rc="$1"; shift
158	for d in ${*:-""}
159	do
160		r="${d:+$d/}$rc"
161		[ -f "$r" -a -s "$r" ] || continue
162		echo "NOTE: reading $r"
163		. "$r"
164		break
165	done
166}
167
168cmd_args="$@"
169
170# clear some things from the environment that we care about
171unset MAKEOBJDIR MAKEOBJDIRPREFIX
172# or that might be incompatible
173unset MAKE MAKEFLAGS
174
175# --install[-host-target] will set this
176INSTALL_PREFIX=
177# other things we pass to install step
178INSTALL_ARGS=
179CONFIGURE_ARGS=
180MAKESYSPATH=
181# pick a useful default prefix (for me at least ;-)
182for prefix in /opt/$HOST_TARGET "$HOME/$HOST_TARGET" /usr/pkg /usr/local ""
183do
184	[ -d "${prefix:-.}" ] || continue
185	case "$prefix" in
186	*/$HOST_TARGET)
187		p=`dirname $prefix`
188		if [ -d $p/share ]; then
189			INSTALL_BIN=$HOST_TARGET/bin
190			prefix=$p
191		fi
192		;;
193	esac
194        echo "NOTE: default prefix=$prefix ${INSTALL_BIN:+INSTALL_BIN=$INSTALL_BIN}"
195	break
196done
197srcdir=$Mydir
198mksrc=$Mydir/mk
199objdir=
200quiet=:
201
202${SKIP_RC:+:} source_rc .bmake-boot-strap.rc . "$Mydir/.." "$HOME"
203
204get_optarg() {
205	expr "x$1" : "x[^=]*=\\(.*\\)"
206}
207
208here=`'pwd'`
209if [ $here = $Mydir ]; then
210   # avoid pollution
211   OBJROOT=../
212fi
213
214op=all
215BMAKE=
216
217while :
218do
219	case "$1" in
220	--) shift; break;;
221        --help) sed -n -e "1d;/RCSid/,\$d" -e '/^#\.[a-z]/d' -e '/^#/s,^# *,,p' $0; exit 0;;
222	--prefix) prefix="$2"; shift;;
223	--prefix=*) prefix=`get_optarg "$1"`;;
224	--src=*) srcdir=`get_optarg "$1"`;;
225	--with-mksrc=*|--mksrc=*) mksrc=`get_optarg "$1"`;;
226	--share=*) share_dir=`get_optarg "$1"`;;
227	--share) share_dir="$2"; shift;;
228	--with-default-sys-path=*)
229	    CONFIGURE_ARGS="$1";;
230	--with-default-sys-path)
231	    CONFIGURE_ARGS="$1 $2";;
232	--install) INSTALL_PREFIX=${INSTALL_PREFIX:-$prefix};;
233	--install-host-target)
234                INSTALL_PREFIX=${INSTALL_PREFIX:-$prefix}
235                INSTALL_BIN=$HOST_TARGET/bin;;
236	--install-destdir=*) INSTALL_DESTDIR=`get_optarg "$1"`;;
237	--install-prefix=*) INSTALL_PREFIX=`get_optarg "$1"`;;
238	-DWITH*) INSTALL_ARGS="$INSTALL_ARGS $1";;
239	-s|--src) srcdir="$2"; shift;;
240	-m|--mksrc) mksrc="$2"; shift;;
241	-o|--objdir) objdir="$2"; shift;;
242	-q) quiet=;;
243	-c) source_rc "$2"; shift;;
244	--*) CONFIGURE_ARGS="$CONFIGURE_ARGS $1";;
245	*=*) eval "$1"; export `expr "x$1" : "x\\(.[^=]*\\)=.*"`;;
246	*) break;;
247	esac
248        shift
249done
250
251AddConfigure() {
252	case " $CONFIGURE_ARGS " in
253	*" $1"*) ;;
254	*) CONFIGURE_ARGS="$CONFIGURE_ARGS $1$2";;
255	esac
256}
257
258GetDir() {
259	match="$1"
260	shift
261	fmatch="$1"
262	shift
263	for dir in $*
264	do
265		[ -d "$dir" ] || continue
266		case "/$dir/" in
267		*$match*) ;;
268		*) continue;;
269		esac
270		case "$fmatch" in
271		.) ;;
272		*) [ -s $dir/$fmatch ] || continue;;
273		esac
274		case "$dir/" in
275		*./*) cd "$dir" && 'pwd';;
276		/*) echo $dir;;
277		*) cd "$dir" && 'pwd';;
278		esac
279		break
280	done
281}
282
283FindHereOrAbove() {
284    (
285	_t=-s
286	while :
287	do
288		case "$1" in
289		-C) cd "$2"; shift; shift;;
290		-?) _t=$1; shift;;
291		*) break;;
292		esac
293	done
294	case "$1" in
295	/*)	# we shouldn't be here
296		[ $_t "$1" ] && echo "$1"
297		return
298		;;
299	.../*) want=`echo "$1" | sed 's,^.../*,,'`;;
300	*) want="$1";;
301	esac
302	here=`'pwd'`
303	while :
304	do
305		if [ $_t "./$want" ]; then
306			echo "$here/$want"
307			return
308		fi
309		cd ..
310		here=`'pwd'`
311		case "$here" in
312		/) return;;
313		esac
314	done
315    )
316}
317
318# is $1 missing from $2 (or PATH) ?
319no_path() {
320	eval "__p=\$${2:-PATH}"
321	case ":$__p:" in *:"$1":*) return 1;; *) return 0;; esac
322}
323
324# if $1 exists and is not in path, append it
325add_path () {
326	case "$1" in
327	-?) t=$1; shift;;
328	*) t=-d;;
329	esac
330	case "$2,$1" in
331	MAKESYSPATH,.../*) ;;
332	*) [ $t ${1:-.} ] || return;;
333	esac
334	no_path $* && eval ${2:-PATH}="$__p${__p:+:}$1"
335}
336
337
338srcdir=`GetDir /bmake make-bootstrap.sh.in "$srcdir" "$2" "$Mydir" ./bmake* "$Mydir"/../bmake*`
339[ -d "${srcdir:-/dev/null}" ] || Usage
340case "$mksrc" in
341none|-) # we ignore this now
342	mksrc=$Mydir/mk
343	;;
344.../*)	# find here or above
345	mksrc=`FindHereOrAbove -C "$Mydir" -s "$mksrc/sys.mk"`
346	# that found a file
347	mksrc=`dirname $mksrc`
348	;;
349*)	# guess we want mksrc...
350	mksrc=`GetDir /mk sys.mk "$mksrc" "$3" ./mk* "$srcdir"/mk* "$srcdir"/../mk*`
351	[ -d "${mksrc:-/dev/null}" ] || Usage "Use '-m none' to build without mksrc"
352	;;
353esac
354
355# Ok, get to work...
356objdir="${objdir:-$OBJROOT$HOST_TARGET}"
357[ -d "$objdir" ] || mkdir -p "$objdir"
358[ -d "$objdir" ] || mkdir "$objdir"
359cd "$objdir" || exit 1
360# make it absolute
361objdir=`'pwd'`
362
363ShareDir() {
364	case "/$1" in
365	/) [ -d /share ] || return;;
366	*/$HOST_TARGET)
367		if [ -d "$1/../share" ]; then
368			echo `dirname "$1"`/share
369			return
370		fi
371		;;
372	esac
373	echo $1/share
374}
375
376# make it easy to force prefix to use $HOST_TARGET
377: looking at "$prefix"
378case "$prefix" in
379*/host?target) prefix=`echo "$prefix" | sed "s,host.target,${HOST_TARGET},"`;;
380esac
381
382share_dir="${share_dir:-`ShareDir $prefix`}"
383
384AddConfigure --prefix= "$prefix"
385case "$CONFIGURE_ARGS" in
386*--with-*-sys-path*) ;; # skip
387*) [ "$share_dir" ] && AddConfigure --with-default-sys-path= "$share_dir/mk";;
388esac
389if [ "$mksrc" ]; then
390        AddConfigure --with-mksrc= "$mksrc"
391        # not all cc's support this
392        CFLAGS_MF= CFLAGS_MD=
393        export CFLAGS_MF CFLAGS_MD
394fi
395
396# this makes it easy to run the bmake we just built
397# the :tA dance is needed because 'pwd' and even /bin/pwd
398# may not give the same result as realpath().
399Bmake() {
400    (
401	    cd $Mydir &&
402	    MAKESYSPATH=$mksrc SRCTOP=$Mydir OBJTOP=$objdir \
403	    MAKEOBJDIR='${.CURDIR:S,${SRCTOP:tA},${OBJTOP:tA},}' \
404	    ${BMAKE:-$objdir/bmake} -f $Mydir/Makefile "$@"
405    )
406}
407
408op_configure() {
409	$srcdir/configure $CONFIGURE_ARGS || exit 1
410}
411
412op_build() {
413	[ -s make-bootstrap.sh ] || op_configure
414	chmod 755 make-bootstrap.sh || exit 1
415	./make-bootstrap.sh || exit 1
416	case "$op" in
417	build) op_test;;
418	esac
419}
420
421op_test() {
422	[ -x bmake ] || op_build
423	Bmake test "$@" || exit 1
424}
425
426op_clean() {
427	if [ -x bmake ]; then
428		ln bmake bmake$$
429		BMAKE=$objdir/bmake$$ Bmake clean
430		rm -f bmake$$
431	elif [ $objdir != $srcdir ]; then
432		rm -rf *
433	fi
434}
435
436op_install() {
437	op_test
438	case "$INSTALL_PREFIX,$INSTALL_BIN,$prefix" in
439	,$HOST_TARGET/bin,*/$HOST_TARGET)
440		INSTALL_PREFIX=`dirname $prefix`
441		;;
442	esac
443	INSTALL_PREFIX=${INSTALL_PREFIX:-$prefix}
444	Bmake install prefix=$INSTALL_PREFIX BINDIR=$INSTALL_PREFIX/${INSTALL_BIN:-bin} ${INSTALL_DESTDIR:+DESTDIR=$INSTALL_DESTDIR} $INSTALL_ARGS || exit 1
445}
446
447op_all() {
448	rm -f make-bootstrap.sh bmake *.o
449	if [ -n "$INSTALL_PREFIX" ]; then
450		op_install
451	else
452		op_test
453		MAKE_VERSION=`sed -n '/^_MAKE_VERSION/ { s,.*=  *,,;p; }' $srcdir/Makefile`
454		cat << EOM
455You can install by running:
456
457$0 $cmd_args op=install
458
459Use --install-prefix=/something to install somewhere other than $prefix
460Use --install-destdir=/somewhere to set DESTDIR during install
461Use --install-host-target to use INSTALL_BIN=$HOST_TARGET/bin
462Use -DWITH_PROG_VERSION to install as bmake-$MAKE_VERSION
463Use -DWITHOUT_PROG_LINK to suppress bmake -> bmake-$MAKE_VERSION symlink
464Use -DWITHOUT_INSTALL_MK to skip installing files to $prefix/share/mk
465EOM
466	fi
467	cat << EOM
468
469Note: bmake.cat1 contains ANSI escape sequences.
470You may need the -r or -R option to more/less to view it correctly.
471
472EOM
473}
474
475op_$op "$@"
476exit 0
477