#!/bin/sh
#-
# Copyright (c) 2014 The FreeBSD Foundation
# All rights reserved.
#
# This software were developed by Glen Barber
# under sponsorship from the FreeBSD Foundation.
#
# 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.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
#
# $FreeBSD$
#
set -C
PATH="/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin"
export PATH
usage() {
echo "Usage:"
echo -n "$(basename ${0}) [-rNNNNNN]"
echo " [-l /path/for/output] /path/to/branch"
echo " -r: The oldest commit to include in the search"
echo ""
exit 1
}
main() {
while getopts "l:r:" arg ; do
case ${arg} in
l)
# Disallow '-rNNNNNN' argument for oldest
# revision # from becoming the log file
# accidentally.
where="${OPTARG##-r*}"
[ -z "${where}" ] && usage
if [ -e "${where}" ]; then
echo "Log file already exists:"
echo " (${where})"
return 2
fi
;;
r)
rev="${OPTARG##-r}"
c=$(echo -n ${rev} | tr -d '0-9' | wc -c)
if [ ${c} -ne 0 ]; then
echo "Revision number must be numeric."
return 2
fi
# Since the last specified revision is
# specified, mangle the variable to
# make svn syntax happy.
rev="-r${rev}:rHEAD"
;;
*)
usage
;;
esac
done
shift $(( ${OPTIND} - 1 ))
# This assumes a local working copy, which svn search
# allows exactly one repository path (although the root
# can still be the path).
[ "$#" -ne 1 ] && usage
# If no log file, write to stdout.
[ -z "${where}" ] && where=/dev/stdout
svn=
# Where is svn?
for s in /usr/bin /usr/local/bin; do
if [ -x ${s}/svn ]; then
svn=${s}/svn
break
fi
if [ -x ${s}/svnlite ]; then
svn=${s}/svnlite
break
fi
done
# Did we find svn?
if [ -z "${svn}" ]; then
echo "svn(1) binary not found."
return 2
fi
# Is more than one path specified? (This should never
# be triggered, because the argument count is checked
# above, but better safe than sorry.)
if [ $# -gt 1 ]; then
echo "Cannot specify more than one working path."
return 2
fi
# Does the directory exist?
if [ ! -d "${1}" ]; then
echo "Specified path (${1}) is not a directory."
return 2
fi
# Is it a subversion repository checkout?
${svn} info ${1} >/dev/null 2>&1
if [ "$?" -ne 0 ]; then
echo "Cannot determine svn repository information for ${1}"
return 2
fi
# All tests passed. Let's see what can possibly go wrong
# from here. The search string specified should match this
# in PCRE speak: ':[\t ]*'
${svn} log ${rev} --search 'Relnotes:*[A-Za-z0-9]*' ${1} > ${where}
return $?
}
main "${@}"
exit $?
