Bash script to check if any of the git locations in a list have uncommitted changes and show output in a GUI alert box using gxmessage

gitcheck.sh

#!/bin/bash

# Depends on the gxmessage package

# This is a script that will check all git repos in the location array
# Then it will check the output length of git diff
# If there's output in any of them it will show a red warning with their location
# If not it will show an "All good" message in green
# This is useful to keep various git repos in check with a simple command (or keypress if you map it)

# For this to work, it's suggested you disable warnings that can cause git diff output to vary
# For instance I need to do "git config --global core.safecrlf false"
# To avoid line ending warnings
# Some space formatting here on strings is on purpose

# I mapped this to F12 on Openbox, here's how:

#<keybind key="F12">
#	<action name="Execute">
#		<command>/mnt/c/Users/yo/Documents/stuff/gitcheck.sh</command>$
#	</action>
#</keybind>


s=""

modified=0

locations=(
	"/mnt/c/Users/yo/Documents/hue" 
	"/mnt/c/Users/yo/Documents/huebot"
	"/mnt/c/Users/yo/Documents/msg"
)

for i in "${locations[@]}"
do
	cd "$i"
	
	diff=$(git diff | cat | wc -m)

	if (( diff > 0 )); then
s=" $s 
 $i has changes"
		modified=$((modified + 1))
	fi
done

if (( modified > 0 )); then
	gxmessage -center -bg red -fn "sans 20" "$s"
else
	gxmessage -center -bg green -fn "sans 20" "All good!"
fi