freebsd-skq/sys/conf/newvers.sh
Warner Losh 8a51f14a78 newvers: tweak uname to be more useful
The current uname is branch-cXXXX-gHASH

Three changes to make uname more useful.
1. Move from using git rev-list --count to git rev-lis --count --first-parent
   since that gives a better, incrementing number.
2. Report this count as 'nXXXXX' rather than 'cXXXXX' because c is part of
   a hash and we've changed the sematnics of XXXXX
3. Remove g to make HASH cut and pastable.

Durting review, #1 & #3 had the largest consensus. There was a diversity of
opinion on #2, but on the whole it was positive so I'll acknowledge the dissent,
but move forward with something seems to have support since the dissent was all
about what letter to use where I chose 'n'.

MFC After: 3 days
Reviewed by: rgrimes, emaste (earlier version)
Differential Revision: https://reviews.freebsd.org/D28338
2021-01-28 17:44:56 -07:00

318 lines
7.9 KiB
Bash

#!/bin/sh -
#
# SPDX-License-Identifier: BSD-3-Clause
#
# Copyright (c) 1984, 1986, 1990, 1993
# The Regents of the University of California. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#)newvers.sh 8.1 (Berkeley) 4/20/94
# $FreeBSD$
# Command line options:
#
# -c Print the copyright / license statement as a C comment and exit
#
# -r Reproducible build. Do not embed directory names, user names,
# time stamps or other dynamic information into the output file.
# This is intended to allow two builds done at different times
# and even by different people on different hosts to produce
# identical output.
#
# -R Reproducible build if the tree represents an unmodified
# checkout from a version control system. Metadata is included
# if the tree is modified.
#
# -V var Print ${var}="${val-of-var}" and exit
#
# -v Print TYPE REVISION BRANCH RELEASE VERSION RELDATE variables
# like the -V command
#
TYPE="FreeBSD"
REVISION="14.0"
BRANCH="CURRENT"
if [ -n "${BRANCH_OVERRIDE}" ]; then
BRANCH=${BRANCH_OVERRIDE}
fi
RELEASE="${REVISION}-${BRANCH}"
VERSION="${TYPE} ${RELEASE}"
if [ -z "${SYSDIR}" ]; then
SYSDIR=$(dirname $0)/..
fi
RELDATE=$(awk '/__FreeBSD_version.*propagated to newvers/ {print $3}' ${PARAMFILE:-${SYSDIR}/sys/param.h})
if [ -r "${SYSDIR}/../COPYRIGHT" ]; then
year=$(sed -Ee '/^Copyright .* The FreeBSD Project/!d;s/^.*1992-([0-9]*) .*$/\1/g' ${SYSDIR}/../COPYRIGHT)
else
year=$(date +%Y)
fi
# look for copyright template
b=share/examples/etc/bsd-style-copyright
for bsd_copyright in $b ../$b ../../$b ../../../$b /usr/src/$b /usr/$b
do
if [ -r "$bsd_copyright" ]; then
COPYRIGHT=$(sed \
-e "s/\[year\]/1992-$year/" \
-e 's/\[your name here\]\.* /The FreeBSD Project./' \
-e 's/\[your name\]\.*/The FreeBSD Project./' \
-e '/\[id for your version control system, if any\]/d' \
$bsd_copyright)
break
fi
done
# no copyright found, use a dummy
if [ -z "$COPYRIGHT" ]; then
COPYRIGHT="/*-
* Copyright (c) 1992-$year The FreeBSD Project.
*
*/"
fi
# add newline
COPYRIGHT="$COPYRIGHT
"
# We expand include_metadata later since we may set it to the
# future value of modified.
include_metadata=yes
modified=no
while getopts crRvV: opt; do
case "$opt" in
c)
echo "$COPYRIGHT"
exit 0
;;
r)
include_metadata=no
;;
R)
include_metadata=if-modified
;;
v)
# Only put variables that are single lines here.
for v in TYPE REVISION BRANCH RELEASE VERSION RELDATE; do
eval val=\$${v}
echo ${v}=\"${val}\"
done
exit 0
;;
V)
v=$OPTARG
eval val=\$${v}
echo ${v}=\"${val}\"
exit 0
;;
esac
done
shift $((OPTIND - 1))
# VARS_ONLY means no files should be generated, this is just being
# included.
[ -n "$VARS_ONLY" ] && return 0
#
# findvcs dir
# Looks up directory dir at world root and up the filesystem
#
findvcs()
{
local savedir
savedir=$(pwd)
cd ${SYSDIR}/..
while [ $(pwd) != "/" ]; do
if [ -e "./$1" ]; then
VCSTOP=$(pwd)
VCSDIR=${VCSTOP}"/$1"
cd ${savedir}
return 0
fi
cd ..
done
cd ${savedir}
return 1
}
git_tree_modified()
{
! $git_cmd "--work-tree=${VCSTOP}" -c core.checkStat=minimal -c core.fileMode=off diff --quiet
}
LC_ALL=C; export LC_ALL
if [ ! -r version ]
then
echo 0 > version
fi
touch version
v=$(cat version)
u=${USER:-root}
d=$(pwd)
h=${HOSTNAME:-$(hostname)}
if [ -n "$SOURCE_DATE_EPOCH" ]; then
if ! t=$(date -r $SOURCE_DATE_EPOCH 2>/dev/null); then
echo "Invalid SOURCE_DATE_EPOCH" >&2
exit 1
fi
else
t=$(date)
fi
i=$(${MAKE:-make} -V KERN_IDENT)
compiler_v=$($(${MAKE:-make} -V CC) -v 2>&1 | grep -w 'version')
for dir in /usr/bin /usr/local/bin; do
if [ ! -z "${svnversion}" ] ; then
break
fi
if [ -x "${dir}/svnversion" ] && [ -z ${svnversion} ] ; then
# Run svnversion from ${dir} on this script; if return code
# is not zero, the checkout might not be compatible with the
# svnversion being used.
${dir}/svnversion $(realpath ${0}) >/dev/null 2>&1
if [ $? -eq 0 ]; then
svnversion=${dir}/svnversion
break
fi
fi
done
if [ -z "${svnversion}" ] && [ -x /usr/bin/svnliteversion ] ; then
/usr/bin/svnliteversion $(realpath ${0}) >/dev/null 2>&1
if [ $? -eq 0 ]; then
svnversion=/usr/bin/svnliteversion
else
svnversion=
fi
fi
if findvcs .git; then
for dir in /usr/bin /usr/local/bin; do
if [ -x "${dir}/git" ] ; then
git_cmd="${dir}/git -c help.autocorrect=0 --git-dir=${VCSDIR}"
break
fi
done
fi
if findvcs .gituprevision; then
gituprevision="${VCSTOP}/.gituprevision"
fi
if findvcs .hg; then
for dir in /usr/bin /usr/local/bin; do
if [ -x "${dir}/hg" ] ; then
hg_cmd="${dir}/hg -R ${VCSDIR}"
break
fi
done
fi
if [ -n "$svnversion" ] ; then
svn=$(cd ${SYSDIR} && $svnversion 2>/dev/null)
case "$svn" in
[0-9]*[MSP]|*:*)
svn=" r${svn}"
modified=yes
;;
[0-9]*)
svn=" r${svn}"
;;
*)
unset svn
;;
esac
fi
if [ -n "$git_cmd" ] ; then
git=$($git_cmd rev-parse --verify --short HEAD 2>/dev/null)
if [ "$($git_cmd rev-parse --is-shallow-repository)" = false ] ; then
git_cnt=$($git_cmd rev-list --first-parent --count HEAD 2>/dev/null)
if [ -n "$git_cnt" ] ; then
git="n${git_cnt}-${git}"
fi
fi
git_b=$($git_cmd rev-parse --abbrev-ref HEAD)
if [ -n "$git_b" -a "$git_b" != "HEAD" ] ; then
git="${git_b}-${git}"
fi
if git_tree_modified; then
git="${git}-dirty"
modified=yes
fi
git=" ${git}"
fi
if [ -n "$gituprevision" ] ; then
gitup=" $(awk -F: '{print $2}' $gituprevision)"
fi
if [ -n "$hg_cmd" ] ; then
hg=$($hg_cmd id 2>/dev/null)
hgsvn=$($hg_cmd svn info 2>/dev/null | \
awk -F': ' '/Revision/ { print $2 }')
if [ -n "$hgsvn" ] ; then
svn=" r${hgsvn}"
fi
if [ -n "$hg" ] ; then
hg=" ${hg}"
fi
fi
[ ${include_metadata} = "if-modified" -a ${modified} = "yes" ] && include_metadata=yes
if [ ${include_metadata} != "yes" ]; then
VERINFO="${VERSION}${svn}${git}${gitup}${hg} ${i}"
VERSTR="${VERINFO}\\n"
else
VERINFO="${VERSION} #${v}${svn}${git}${gitup}${hg}: ${t}"
VERSTR="${VERINFO}\\n ${u}@${h}:${d}\\n"
fi
vers_content_new=$(cat << EOF
$COPYRIGHT
#define SCCSSTR "@(#)${VERINFO}"
#define VERSTR "${VERSTR}"
#define RELSTR "${RELEASE}"
char sccs[sizeof(SCCSSTR) > 128 ? sizeof(SCCSSTR) : 128] = SCCSSTR;
char version[sizeof(VERSTR) > 256 ? sizeof(VERSTR) : 256] = VERSTR;
char compiler_version[] = "${compiler_v}";
char ostype[] = "${TYPE}";
char osrelease[sizeof(RELSTR) > 32 ? sizeof(RELSTR) : 32] = RELSTR;
int osreldate = ${RELDATE};
char kern_ident[] = "${i}";
EOF
)
vers_content_old=$(cat vers.c 2>/dev/null || true)
if [ "$vers_content_new" != "$vers_content_old" ]; then
printf "%s\n" "$vers_content_new" > vers.c
fi
echo $((v + 1)) > version