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#!/bin/sh
#
# NAME
# fix-newlines.sh - Use DOS newlines and ensure a single empty line
# between vCards
#
# SYNOPSIS
# fix-newlines.sh FILE...
#
# DESCRIPTION
# Requires unix2dos.
#
# BUGS
# https://github.com/l0b0/vcard/issues
#
# COPYRIGHT
# Copyright (C) 2013 Victor Engmark
#
# 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/>.
#
################################################################################
set -o errexit -o noclobber -o nounset
# Convert to DOS newlines
unix2dos -- "$@"
dir="$(dirname -- "$(readlink -f -- "$0")")"
declare -r dir
# Working directory
TMPDIR="${TMPDIR:-/tmp}"
trap 'rm -rf -- "$temporary_dir"' EXIT
temporary_dir="$(mktemp -d "$TMPDIR/XXXXXXXXXXXXXXXXXXXXXXXXXXXXX")"
declare -r temporary_dir
trap 'exit 2' HUP INT QUIT TERM
# Ensure two DOS newlines only at the end
for path
do
absolute_path="$(readlink -f -- "$path")"
cd -- "$temporary_dir"
"$dir/split.sh" "$absolute_path"
cd - > /dev/null
filename="$(basename -- "$absolute_path")"
sed -i -e '/^\r$/d;$a
\' -- "${temporary_dir}/${filename}"????????
set +o noclobber
cat -- "${temporary_dir}/${filename}"???????? > "$absolute_path"
set -o noclobber
done
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