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#!/usr/bin/env bash
#
# write - output functions.
#
# Copyright 2019 Einhard Leichtfuß
#
# This file is part of rsync-backup.
#
# rsync-backup is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# rsync-backup 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with rsync-backup. If not, see <https://www.gnu.org/licenses/>.
#
# Write message, prefixed by either 'local' or the respective current host.
# Each argument is printed on its own line.
#
# requires: $host (unset or empty if running on localhost)
#
# $1: secondary prefix
# ${@:2}: messages: string+
#
function prefixed_write
{
local prefix
local msg
test -n "$host" && prefix="${host}: "
test -n "$1" && prefix+="${1}: "
printf '%s%s\n' "$prefix" "$2"
for msg in "${@:3}"
do
printf '%s%s\n' "${prefix//?/ }" "$msg"
done
}
function message
{
$verbose && prefixed_write '' "$@"
}
function debug
{
$debug && prefixed_write "Debug" "$@"
}
function error
{
prefixed_write "Error" "$@" 2>&1
}
function debug_error
{
$debug && prefixed_write "Debug" "$@" 2>&1
}
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