#!/bin/sh

# To add?
# 	- possibility of changing verb pull/fetch/push
# 	- adding prefix

ls() { find . -mindepth 1 -maxdepth 1 -type d -not -name ".*" -printf '%f\n';  }

if [ "$1" = '-h' ]
then
	>&2 cat <<-EOF
	usage:
	    supd                              Update dirs in current dir
	    ls ~/projects | supd              Update dirs read from stdin
	    supd -h                           Show help
	EOF
	exit
fi

[ ! -t 0 ] && dirs="$(cat)" || dirs="$(ls)"

for dir in $dirs
do
	printf '%s: ' "$dir" | >&2 sed "s#$HOME#~#"
	(
	cd "$dir" || exit
	git pull > /dev/null 2>&1 &&
		printf 'Up to date.' ||
		printf 'Couldn'\''t update.'
	# Show remote state
	printf ' %s %s\n' "$(git status --short 2> /dev/null |
		awk 'NR==1 {print $1}')" "$(git branch -v 2>/dev/null |
		awk -F '[][]' '/^\*/ {print $2}')" |
		sed 's/ahead/↑ /;s/behind/↓ /;s/[^↓↑]*/ /g'
	)
done