Kapisi/bin/tmux-hosts

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#!/bin/bash
# File: tmux-hosts
#
# Description: This script allows you to open groups of hosts in 2x2 tmux panes
#
# Package: AniNIX/Ubiqtorate
# Copyright: WTFPL
#
# Author: DarkFeather <ircs://irc.aninix.net:6697/DarkFeather>
# Sanity
set -Eo pipefail
# Defaults
group=all
offset=0
unset inventory
function usage() {
# Show helptext
# param retcode: what to exit
retcode="$1"
echo "Usage: $0 [ -o offset ] [-g group ] -i inventory.yml"
echo " $0 -h"
echo "Group is optional -- add it if you only want to look at a specific subset."
echo "Add -v for verbosity."
exit "$retcode"
}
function tmuxHosts() {
# Open hosts in Tmux -- ported from pnp/misc-scripts.git geotmux
# param host1: the first host
# param host2: the second host
# param host3: the third host
# param host4: the fourth host
host1="$1"
host2="$2"
host3="$3"
host4="$4"
name="$group-$offset"
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# If no TMUX session started, then add one with four panes.
if [ -z "$TMUX" ]; then
tmux new-session -s "$name" -d "/bin/bash -l -c ssh\\ $host1"
tmux select-window -t "$name":0
tmux split-window "/bin/bash -l -c ssh\\ $host2"
tmux split-window -h -t 0 "/bin/bash -l -c ssh\\ $host3"
tmux select-window -t "$name":1
tmux split-window -h -t 2 "/bin/bash -l -c ssh\\ $host4"
tmux setw synchronize-panes
tmux a -d -t "$name"
# Otherwise, add a new window to the current session with all four sessions.
else
tmux new-window -n "$name" "/bin/bash -l -c ssh\\ $host1"
tmux select-window -t "$name"
tmux split-window "/bin/bash -l -c ssh\\ $host2"
tmux select-window -t "$name"
tmux split-window -h -t 0 "/bin/bash -l -c ssh\\ $host3"
tmux select-window -t "$name"
tmux split-window -h -t 2 "/bin/bash -l -c ssh\\ $host4"
tmux setw synchronize-panes
tmux select-window -t "$name"
fi
}
# main
if [ "$(basename $0)" == "tmux-hosts" ]; then
while getopts 'g:hi:o:v' OPTION; do
case "${OPTION}" in
g) group="${OPTARG}" ;;
h) echo Open Ansible hosts in TMUX panes.; usage 0 ;;
i) inventory="${OPTARG}" ;;
o) offset="${OPTARG}" ;;
v) set -x ;;
*) usage 1 ;;
esac
done
if [ -z "$inventory" ]; then
echo Need an inventory.
usage 2;
fi
tmuxHosts $(ansible -i "$inventory" --list-hosts "$group"\
| grep -v hosts\ \( \
| sed 's/\s\+//g' \
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| if [ $offset -gt 0 ]; then tail -n +"${offset}"; else cat; fi \
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| head -n 4 \
| tr '\n' ' ')
fi