freebsd-dev/sys/conf/newvers.sh
Ed Maste ecb2bbc081 newvers: append commit count to uname version string
In a git world this provides a facsimile of a monotonically increasing
version number.  This might be refined further, but this provides a
starting point for investigation.

Reviewed by:	cem
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20462
2019-08-01 14:13:04 +00:00

350 lines
8.8 KiB
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#!/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="13.0"
BRANCH=${BRANCH_OVERRIDE:-CURRENT}
RELEASE="${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 ${savedir}
return 1
}
git_tree_modified()
{
# git diff-index lists both files that are known to have changes as
# well as those with metadata that does not match what is recorded in
# git's internal state. The latter case is indicated by an all-zero
# destination file hash.
local fifo
fifo=$(mktemp -u)
mkfifo -m 600 $fifo || exit 1
$git_cmd --work-tree=${VCSTOP} diff-index HEAD > $fifo &
while read smode dmode ssha dsha status file; do
if ! expr $dsha : '^00*$' >/dev/null; then
rm $fifo
return 0
fi
if ! $git_cmd --work-tree=${VCSTOP} diff --quiet -- "${file}"; then
rm $fifo
return 0
fi
done < $fifo
# No files with content differences.
rm $fifo
return 1
}
LC_ALL=C; export LC_ALL
if [ ! -r version ]
then
echo 0 > version
fi
touch version
v=$(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 .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 "$git_cmd" ] ; then
git=$($git_cmd rev-parse --verify --short HEAD 2>/dev/null)
gitsvn=$($git_cmd svn find-rev $git 2>/dev/null)
if [ -n "$gitsvn" ] ; then
svn=" r${gitsvn}"
git="=${git}"
else
# Log searches are limited to 10k commits to speed up failures.
# We assume that if a tree is more than 10k commits out-of-sync
# with FreeBSD, it has forked the the OS and the SVN rev no
# longer matters.
gitsvn=$($git_cmd log -n 10000 |
grep '^ git-svn-id:' | head -1 | \
sed -n 's/^.*@\([0-9][0-9]*\).*$/\1/p')
if [ -z "$gitsvn" ] ; then
gitsvn=$($git_cmd log -n 10000 --format='format:%N' | \
grep '^svn ' | head -1 | \
sed -n 's/^.*revision=\([0-9][0-9]*\).*$/\1/p')
fi
if [ -n "$gitsvn" ] ; then
svn=" r${gitsvn}"
git="+${git}"
else
git=" ${git}"
fi
fi
git_cnt=$($git_cmd rev-list --count HEAD 2>/dev/null)
if [ -n "$git_cnt" ] ; then
git="${git}-c${git_cnt}"
fi
git_b=$($git_cmd rev-parse --abbrev-ref HEAD)
if [ -n "$git_b" ] ; then
git="${git}(${git_b})"
fi
if git_tree_modified; then
git="${git}-dirty"
modified=yes
fi
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}${hg} ${i}"
VERSTR="${VERINFO}\\n"
else
VERINFO="${VERSION} #${v}${svn}${git}${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" != "$vers_content_old" ]; then
echo "$vers_content_new" > vers.c
fi
echo $((v + 1)) > version