FreeBSD/Linux Kernel Cross Reference
sys/conf/newvers.sh
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
55 TYPE="FreeBSD"
56 REVISION="14.0"
57 BRANCH="CURRENT"
58 if [ -n "${BRANCH_OVERRIDE}" ]; then
59 BRANCH=${BRANCH_OVERRIDE}
60 fi
61 RELEASE="${REVISION}-${BRANCH}"
62 VERSION="${TYPE} ${RELEASE}"
63
64 if [ -z "${SYSDIR}" ]; then
65 SYSDIR=$(dirname $0)/..
66 fi
67
68 RELDATE=$(awk '/^\#define[[:space:]]*__FreeBSD_version/ {print $3}' ${PARAMFILE:-${SYSDIR}/sys/param.h})
69
70 if [ -r "${SYSDIR}/../COPYRIGHT" ]; then
71 year=$(sed -Ee '/^Copyright .* The FreeBSD Project/!d;s/^.*1992-([0-9]*) .*$/\1/g' ${SYSDIR}/../COPYRIGHT)
72 else
73 year=$(date +%Y)
74 fi
75 # look for copyright template
76 b=share/examples/etc/bsd-style-copyright
77 for bsd_copyright in $b ../$b ../../$b ../../../$b /usr/src/$b /usr/$b
78 do
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 $bsd_copyright)
86 break
87 fi
88 done
89
90 # no copyright found, use a dummy
91 if [ -z "$COPYRIGHT" ]; then
92 COPYRIGHT="/*-
93 * Copyright (c) 1992-$year The FreeBSD Project.
94 *
95 */"
96 fi
97
98 # add newline
99 COPYRIGHT="$COPYRIGHT
100 "
101
102 # We expand include_metadata later since we may set it to the
103 # future value of modified.
104 include_metadata=yes
105 modified=no
106 while 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_EXIT=1
131 ;;
132 esac
133 done
134 shift $((OPTIND - 1))
135
136 # VARS_ONLY means no files should be generated, this is just being
137 # included.
138 [ -n "$VARS_ONLY" ] && return 0
139
140 # VARS_ONLY_EXIT means no files should be generated, only the value of
141 # variables are being output.
142 [ -n "$VARS_ONLY_EXIT" ] && exit 0
143
144 #
145 # findvcs dir
146 # Looks up directory dir at world root and up the filesystem
147 #
148 findvcs()
149 {
150 local savedir
151
152 savedir=$(pwd)
153 cd ${SYSDIR}/..
154 while [ $(pwd) != "/" ]; do
155 if [ -e "./$1" ]; then
156 VCSTOP=$(pwd)
157 VCSDIR=${VCSTOP}"/$1"
158 cd ${savedir}
159 return 0
160 fi
161 cd ..
162 done
163 cd ${savedir}
164 return 1
165 }
166
167 git_tree_modified()
168 {
169 ! $git_cmd "--work-tree=${VCSTOP}" -c core.checkStat=minimal -c core.fileMode=off diff --quiet
170 }
171
172 LC_ALL=C; export LC_ALL
173 if [ ! -r version ]
174 then
175 echo 0 > version
176 fi
177
178 touch version
179 v=$(cat version)
180 u=${USER:-root}
181 d=$(pwd)
182 h=${HOSTNAME:-$(hostname)}
183 if [ -n "$SOURCE_DATE_EPOCH" ]; then
184 if ! t=$(date -r $SOURCE_DATE_EPOCH 2>/dev/null); then
185 echo "Invalid SOURCE_DATE_EPOCH" >&2
186 exit 1
187 fi
188 else
189 t=$(date)
190 fi
191 i=$(${MAKE:-make} -V KERN_IDENT)
192 compiler_v=$($(${MAKE:-make} -V CC) -v 2>&1 | grep -w 'version')
193
194 for dir in /usr/bin /usr/local/bin; do
195 if [ ! -z "${svnversion}" ] ; then
196 break
197 fi
198 if [ -x "${dir}/svnversion" ] && [ -z ${svnversion} ] ; then
199 # Run svnversion from ${dir} on this script; if return code
200 # is not zero, the checkout might not be compatible with the
201 # svnversion being used.
202 ${dir}/svnversion $(realpath ${0}) >/dev/null 2>&1
203 if [ $? -eq 0 ]; then
204 svnversion=${dir}/svnversion
205 break
206 fi
207 fi
208 done
209
210 if [ -z "${svnversion}" ] && [ -x /usr/bin/svnliteversion ] ; then
211 /usr/bin/svnliteversion $(realpath ${0}) >/dev/null 2>&1
212 if [ $? -eq 0 ]; then
213 svnversion=/usr/bin/svnliteversion
214 else
215 svnversion=
216 fi
217 fi
218
219 if findvcs .git; then
220 for dir in /usr/bin /usr/local/bin; do
221 if [ -x "${dir}/git" ] ; then
222 git_cmd="${dir}/git -c help.autocorrect=0 --git-dir=${VCSDIR}"
223 break
224 fi
225 done
226 fi
227
228 if findvcs .gituprevision; then
229 gituprevision="${VCSTOP}/.gituprevision"
230 fi
231
232 if findvcs .hg; then
233 for dir in /usr/bin /usr/local/bin; do
234 if [ -x "${dir}/hg" ] ; then
235 hg_cmd="${dir}/hg -R ${VCSDIR}"
236 break
237 fi
238 done
239 fi
240
241 if [ -n "$svnversion" ] ; then
242 svn=$(cd ${SYSDIR} && $svnversion 2>/dev/null)
243 case "$svn" in
244 [0-9]*[MSP]|*:*)
245 svn=" r${svn}"
246 modified=yes
247 ;;
248 [0-9]*)
249 svn=" r${svn}"
250 ;;
251 *)
252 unset svn
253 ;;
254 esac
255 fi
256
257 if [ -n "$git_cmd" ] ; then
258 git=$($git_cmd rev-parse --verify --short HEAD 2>/dev/null)
259 if [ "$($git_cmd rev-parse --is-shallow-repository)" = false ] ; then
260 git_cnt=$($git_cmd rev-list --first-parent --count HEAD 2>/dev/null)
261 if [ -n "$git_cnt" ] ; then
262 git="n${git_cnt}-${git}"
263 fi
264 fi
265 git_b=$($git_cmd rev-parse --abbrev-ref HEAD)
266 if [ -n "$git_b" -a "$git_b" != "HEAD" ] ; then
267 git="${git_b}-${git}"
268 fi
269 if git_tree_modified; then
270 git="${git}-dirty"
271 modified=yes
272 fi
273 git=" ${git}"
274 fi
275
276 if [ -n "$gituprevision" ] ; then
277 gitup=" $(awk -F: '{print $2}' $gituprevision)"
278 fi
279
280 if [ -n "$hg_cmd" ] ; then
281 hg=$($hg_cmd id 2>/dev/null)
282 hgsvn=$($hg_cmd svn info 2>/dev/null | \
283 awk -F': ' '/Revision/ { print $2 }')
284 if [ -n "$hgsvn" ] ; then
285 svn=" r${hgsvn}"
286 fi
287 if [ -n "$hg" ] ; then
288 hg=" ${hg}"
289 fi
290 fi
291
292 [ ${include_metadata} = "if-modified" -a ${modified} = "yes" ] && include_metadata=yes
293 if [ ${include_metadata} != "yes" ]; then
294 VERINFO="${VERSION}${svn}${git}${gitup}${hg} ${i}"
295 VERSTR="${VERINFO}\\n"
296 else
297 VERINFO="${VERSION} #${v}${svn}${git}${gitup}${hg}: ${t}"
298 VERSTR="${VERINFO}\\n ${u}@${h}:${d}\\n"
299 fi
300
301 vers_content_new=$(cat << EOF
302 $COPYRIGHT
303 #define SCCSSTR "@(#)${VERINFO}"
304 #define VERSTR "${VERSTR}"
305 #define RELSTR "${RELEASE}"
306
307 char sccs[sizeof(SCCSSTR) > 128 ? sizeof(SCCSSTR) : 128] = SCCSSTR;
308 char version[sizeof(VERSTR) > 256 ? sizeof(VERSTR) : 256] = VERSTR;
309 char compiler_version[] = "${compiler_v}";
310 char ostype[] = "${TYPE}";
311 char osrelease[sizeof(RELSTR) > 32 ? sizeof(RELSTR) : 32] = RELSTR;
312 int osreldate = ${RELDATE};
313 char kern_ident[] = "${i}";
314 EOF
315 )
316 vers_content_old=$(cat vers.c 2>/dev/null || true)
317 if [ "$vers_content_new" != "$vers_content_old" ]; then
318 printf "%s\n" "$vers_content_new" > vers.c
319 fi
320
321 echo $((v + 1)) > version
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