xref: /freebsd/sys/conf/newvers.sh (revision 994297b01b98816bea1abf45ae4bac1bc69ee7a0)
1#!/bin/sh -
2#
3# SPDX-License-Identifier: BSD-3-Clause
4#
5# Copyright (c) 1984, 1986, 1990, 1993
6#	The Regents of the University of California.  All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13# 2. Redistributions in binary form must reproduce the above copyright
14#    notice, this list of conditions and the following disclaimer in the
15#    documentation and/or other materials provided with the distribution.
16# 3. Neither the name of the University nor the names of its contributors
17#    may be used to endorse or promote products derived from this software
18#    without specific prior written permission.
19#
20# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30# SUCH DAMAGE.
31#
32#	@(#)newvers.sh	8.1 (Berkeley) 4/20/94
33# $FreeBSD$
34
35# Command line options:
36#
37#	-c	Print the copyright / license statement as a C comment and exit
38#
39#	-r	Reproducible build.  Do not embed directory names, user	names,
40#		time stamps or other dynamic information into the output file.
41#		This is intended to allow two builds done at different times
42#		and even by different people on different hosts to produce
43#		identical output.
44#
45#	-R	Reproducible build if the tree represents an unmodified
46#		checkout from a version control system.  Metadata is included
47#		if the tree is modified.
48#
49#	-V var	Print ${var}="${val-of-var}" and exit
50#
51#	-v	Print TYPE REVISION BRANCH RELEASE VERSION RELDATE variables
52#		like the -V command
53#
54
55TYPE="FreeBSD"
56REVISION="14.0"
57BRANCH="CURRENT"
58if [ -n "${BRANCH_OVERRIDE}" ]; then
59	BRANCH=${BRANCH_OVERRIDE}
60fi
61RELEASE="${REVISION}-${BRANCH}"
62VERSION="${TYPE} ${RELEASE}"
63
64if [ -z "${SYSDIR}" ]; then
65    SYSDIR=$(dirname $0)/..
66fi
67
68RELDATE=$(awk '/^\#define[[:space:]]*__FreeBSD_version/ {print $3}' ${PARAMFILE:-${SYSDIR}/sys/param.h})
69
70if [ -r "${SYSDIR}/../COPYRIGHT" ]; then
71	year=$(sed -Ee '/^Copyright .* The FreeBSD Project/!d;s/^.*1992-([0-9]*) .*$/\1/g' ${SYSDIR}/../COPYRIGHT)
72else
73	year=$(date +%Y)
74fi
75# look for copyright template
76b=share/examples/etc/bsd-style-copyright
77for bsd_copyright in $b ../$b ../../$b ../../../$b /usr/src/$b /usr/$b
78do
79	if [ -r "$bsd_copyright" ]; then
80		COPYRIGHT=$(sed \
81		    -e "s/\[year\]/1992-$year/" \
82		    -e 's/\[your name here\]\.* /The FreeBSD Project./' \
83		    -e 's/\[your name\]\.*/The FreeBSD Project./' \
84		    -e '/\[id for your version control system, if any\]/d' \
85		    $bsd_copyright)
86		break
87	fi
88done
89
90# no copyright found, use a dummy
91if [ -z "$COPYRIGHT" ]; then
92	COPYRIGHT="/*-
93 * Copyright (c) 1992-$year The FreeBSD Project.
94 *
95 */"
96fi
97
98# add newline
99COPYRIGHT="$COPYRIGHT
100"
101
102# We expand include_metadata later since we may set it to the
103# future value of modified.
104include_metadata=yes
105modified=no
106while getopts crRvV: opt; do
107	case "$opt" in
108	c)
109		echo "$COPYRIGHT"
110		exit 0
111		;;
112	r)
113		include_metadata=no
114		;;
115	R)
116		include_metadata=if-modified
117		;;
118	v)
119		# Only put variables that are single lines here.
120		for v in TYPE REVISION BRANCH RELEASE VERSION RELDATE; do
121			eval val=\$${v}
122			echo ${v}=\"${val}\"
123		done
124		exit 0
125		;;
126	V)
127		v=$OPTARG
128		eval val=\$${v}
129		echo ${v}=\"${val}\"
130		VARS_ONLY=1
131		;;
132	esac
133done
134shift $((OPTIND - 1))
135
136# VARS_ONLY means no files should be generated, this is just being
137# included.
138[ -n "$VARS_ONLY" ] && return 0
139
140#
141# findvcs dir
142#	Looks up directory dir at world root and up the filesystem
143#
144findvcs()
145{
146	local savedir
147
148	savedir=$(pwd)
149	cd ${SYSDIR}/..
150	while [ $(pwd) != "/" ]; do
151		if [ -e "./$1" ]; then
152			VCSTOP=$(pwd)
153			VCSDIR=${VCSTOP}"/$1"
154			cd ${savedir}
155			return 0
156		fi
157		cd ..
158	done
159	cd ${savedir}
160	return 1
161}
162
163git_tree_modified()
164{
165	! $git_cmd "--work-tree=${VCSTOP}" -c core.checkStat=minimal -c core.fileMode=off diff --quiet
166}
167
168LC_ALL=C; export LC_ALL
169if [ ! -r version ]
170then
171	echo 0 > version
172fi
173
174touch version
175v=$(cat version)
176u=${USER:-root}
177d=$(pwd)
178h=${HOSTNAME:-$(hostname)}
179if [ -n "$SOURCE_DATE_EPOCH" ]; then
180	if ! t=$(date -r $SOURCE_DATE_EPOCH 2>/dev/null); then
181		echo "Invalid SOURCE_DATE_EPOCH" >&2
182		exit 1
183	fi
184else
185	t=$(date)
186fi
187i=$(${MAKE:-make} -V KERN_IDENT)
188compiler_v=$($(${MAKE:-make} -V CC) -v 2>&1 | grep -w 'version')
189
190for dir in /usr/bin /usr/local/bin; do
191	if [ ! -z "${svnversion}" ] ; then
192		break
193	fi
194	if [ -x "${dir}/svnversion" ] && [ -z ${svnversion} ] ; then
195		# Run svnversion from ${dir} on this script; if return code
196		# is not zero, the checkout might not be compatible with the
197		# svnversion being used.
198		${dir}/svnversion $(realpath ${0}) >/dev/null 2>&1
199		if [ $? -eq 0 ]; then
200			svnversion=${dir}/svnversion
201			break
202		fi
203	fi
204done
205
206if [ -z "${svnversion}" ] && [ -x /usr/bin/svnliteversion ] ; then
207	/usr/bin/svnliteversion $(realpath ${0}) >/dev/null 2>&1
208	if [ $? -eq 0 ]; then
209		svnversion=/usr/bin/svnliteversion
210	else
211		svnversion=
212	fi
213fi
214
215if findvcs .git; then
216	for dir in /usr/bin /usr/local/bin; do
217		if [ -x "${dir}/git" ] ; then
218			git_cmd="${dir}/git -c help.autocorrect=0 --git-dir=${VCSDIR}"
219			break
220		fi
221	done
222fi
223
224if findvcs .gituprevision; then
225	gituprevision="${VCSTOP}/.gituprevision"
226fi
227
228if findvcs .hg; then
229	for dir in /usr/bin /usr/local/bin; do
230		if [ -x "${dir}/hg" ] ; then
231			hg_cmd="${dir}/hg -R ${VCSDIR}"
232			break
233		fi
234	done
235fi
236
237if [ -n "$svnversion" ] ; then
238	svn=$(cd ${SYSDIR} && $svnversion 2>/dev/null)
239	case "$svn" in
240	[0-9]*[MSP]|*:*)
241		svn=" r${svn}"
242		modified=yes
243		;;
244	[0-9]*)
245		svn=" r${svn}"
246		;;
247	*)
248		unset svn
249		;;
250	esac
251fi
252
253if [ -n "$git_cmd" ] ; then
254	git=$($git_cmd rev-parse --verify --short HEAD 2>/dev/null)
255	if [ "$($git_cmd rev-parse --is-shallow-repository)" = false ] ; then
256		git_cnt=$($git_cmd rev-list --first-parent --count HEAD 2>/dev/null)
257		if [ -n "$git_cnt" ] ; then
258			git="n${git_cnt}-${git}"
259		fi
260	fi
261	git_b=$($git_cmd rev-parse --abbrev-ref HEAD)
262	if [ -n "$git_b" -a "$git_b" != "HEAD" ] ; then
263		git="${git_b}-${git}"
264	fi
265	if git_tree_modified; then
266		git="${git}-dirty"
267		modified=yes
268	fi
269	git=" ${git}"
270fi
271
272if [ -n "$gituprevision" ] ; then
273	gitup=" $(awk -F: '{print $2}' $gituprevision)"
274fi
275
276if [ -n "$hg_cmd" ] ; then
277	hg=$($hg_cmd id 2>/dev/null)
278	hgsvn=$($hg_cmd svn info 2>/dev/null | \
279		awk -F': ' '/Revision/ { print $2 }')
280	if [ -n "$hgsvn" ] ; then
281		svn=" r${hgsvn}"
282	fi
283	if [ -n "$hg" ] ; then
284		hg=" ${hg}"
285	fi
286fi
287
288[ ${include_metadata} = "if-modified" -a ${modified} = "yes" ] && include_metadata=yes
289if [ ${include_metadata} != "yes" ]; then
290	VERINFO="${VERSION}${svn}${git}${gitup}${hg} ${i}"
291	VERSTR="${VERINFO}\\n"
292else
293	VERINFO="${VERSION} #${v}${svn}${git}${gitup}${hg}: ${t}"
294	VERSTR="${VERINFO}\\n    ${u}@${h}:${d}\\n"
295fi
296
297vers_content_new=$(cat << EOF
298$COPYRIGHT
299#define SCCSSTR "@(#)${VERINFO}"
300#define VERSTR "${VERSTR}"
301#define RELSTR "${RELEASE}"
302
303char sccs[sizeof(SCCSSTR) > 128 ? sizeof(SCCSSTR) : 128] = SCCSSTR;
304char version[sizeof(VERSTR) > 256 ? sizeof(VERSTR) : 256] = VERSTR;
305char compiler_version[] = "${compiler_v}";
306char ostype[] = "${TYPE}";
307char osrelease[sizeof(RELSTR) > 32 ? sizeof(RELSTR) : 32] = RELSTR;
308int osreldate = ${RELDATE};
309char kern_ident[] = "${i}";
310EOF
311)
312vers_content_old=$(cat vers.c 2>/dev/null || true)
313if [ "$vers_content_new" != "$vers_content_old" ]; then
314	printf "%s\n" "$vers_content_new" > vers.c
315fi
316
317echo $((v + 1)) > version
318