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- #!/bin/sh -e
- #
- # hostname: report a host's name
- #
- # Copyright (C) 2008-2011 Canonical Ltd.
- # Copyright (C) 2011-2014 Dustin Kirkland
- #
- # Authors: Dustin Kirkland <kirkland@byobu.org>
- #
- # 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, version 3 of the License.
- #
- # 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/>.
- __hostname_detail() {
- hostname -f 2>/dev/null
- }
- __hostname() {
- local h=
- if eval $BYOBU_TEST hostname >/dev/null 2>&1; then
- h=$(hostname -s 2>/dev/null || hostname)
- elif [ -r /proc/sys/kernel/hostname ]; then
- read h < /proc/sys/kernel/hostname
- fi
- if metadata_available; then
- local cache="$BYOBU_RUN_DIR/cache.$BYOBU_BACKEND/hostname"
- # Background a retrieval of our public hostname
- timeout 0.2 wget -q -O- http://169.254.169.254/latest/meta-data/public-hostname </dev/null >"$cache" 2>/dev/null &
- sleep 0.02
- [ -s "$cache" ] && read h < "$cache"
- fi
- [ -n "$h" ] || return
- color bold2; printf "%s" "$h"; color --
- }
- # vi: syntax=sh ts=4 noexpandtab
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