#!/bin/sh

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
	    ... | supd                        Update dirs read from stdin
	    supd -h                           Show help
	EOF
	exit
fi

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

for dir in $dirs
do
	(
	cd "$dir" || return
    # is git dir
    git rev-parse > /dev/null 2>&1 || return
	printf '%s: ' "$dir" | >&2 sed "s#$HOME#~#"
    if git "${1:-fetch}" > /dev/null 2>&1
    then
        printf 'o'
    else
        printf 'x\n'
        return
    fi
    # Show remote state
    printf ' %s%s\n' "$(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