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#!/bin/sh
# Convert git log output to ChangeLog format for GNU Emacs.
# Copyright (C) 2014-2015 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Written by Paul Eggert
LC_ALL=C
export LC_ALL
gen_origin=${1?}
# If this is not a Git repository, just generate an empty ChangeLog.
test -d ${srcprefix}.git || {
# Remove any old ChangeLog, in case it is a vc-dwim symlink.
rm -f "${distprefix}ChangeLog" || exit
>"${distprefix}ChangeLog"
exit
}
# Use Gnulib's packaged ChangeLog generator.
${srcprefix}build-aux/gitlog-to-changelog --ignore-matching='^; ' \
"$gen_origin.." >"${distprefix}ChangeLog.tmp" || exit
if test -s "${distprefix}ChangeLog.tmp"; then
# Find the years covered by the generated ChangeLog, so that
# a proper copyright notice can be output.
years=`
sed -n 's/^\([0-9][0-9]*\).*/\1/p' "${distprefix}ChangeLog.tmp" |
sort -nu
`
start_year=
end_year=
for year in $years; do
: ${start_year:=$year}
end_year=$year
done
if test "$start_year" = "$end_year"; then
year_range=$start_year
else
year_range=$start_year-$end_year
fi
# Append a proper copyright notice.
sed "1d
s/\\(Copyright[ (C)]*\\)[0-9]*-[0-9]*/\\1$year_range/
s/^# //
/http:/q
" <Makefile.in >>"${distprefix}ChangeLog.tmp" || exit
fi
# Install the generated ChangeLog.
mv -f "${distprefix}ChangeLog.tmp" "${distprefix}ChangeLog"
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