wifail

#!/usr/bin/env bash

# Note: xterm's `-e` option seems to prepend `bash -c` to its argument (when necessary?);
# i.e., it starts a non-interactive shell.

# Check if a workspace named "wifail" exists.
workspace_exists=$(i3-msg -t get_workspaces | jq 'any (.name == "wifail")')
# Switch to the workspace named "wifail".  Create it if necessary.
i3-msg 'workspace wifail'
# Exit if the "wifail" workspace already existed.
[[ $workspace_exists == 'true' ]] && exit

# Create an i3 workspace with 7 placeholder windows that swallow xterms.
i3-msg -q 'append_layout ~/.config/i3/wifail-workspace.json'

# Show the output of wpa_supplicant and dhcpcd from the current boot as if they were
# running in the foreground.  See journalctl(1).
xterm -title wpa_supplicant -e 'journalctl -fu wpa_supplicant@wlan0 -n $(($(tput lines)-1)) -b -o cat' &
xterm -title dhcpcd -e 'journalctl -fu dhcpcd@wlan0 -n $(($(tput lines)-1)) -b -o cat' &

xterm -title 'iw wlan0 link' -e 'watch -n 1 iw wlan0 link' &
xterm -title 'ping gateway' -e 'while true; do a=$(ip r | awk '\''/^default via .* wlan/{print $3}'\''); [[ $a ]] && ping -c 8 "$a" && sleep 10 && clear || sleep 1; done' &
xterm -title 'ip address show wlan0' -e 'watch -d -n 1 ip address show wlan0' &
xterm -title route -e 'watch -d -n 1 route -n' &
xterm -title 'ping google.com' -e 'while true; do ping -c 8 google.com && sleep 10 && clear || sleep 1; done' &