dmenu_browse

#!/bin/sh
# Browse files with dmenu.
# usage: set ls arguments with "--ls", and dmenu arguments with "--dm"
# Can be interleaved.
# e.g. "--ls -al --dm -p "Hello" --ls -G" will have the following arguments:
#   ls: -al -G
#   dmenu: -p "Hello"
# The last argument before the first occurence of "--ls" or "--dm" is the path
# to start browsing at.

target="$(realpath .)"
dm_args=()
ls_args=()
cur_args=""
while [ "$1" != "" ]; do
	case $1 in
		# All ls arguments
		--ls )	cur_args=ls_args
			;;
		# All dmenu arguments
		--dm )	cur_args=dm_args
			;;
		# Add to current arguments (or set target if cur_args not set yet)
		* )
			[ "$cur_args" = "" ] && target=$1 || eval "$cur_args+=('$1')"
	esac
	shift
done

dotdot=""
# If ls_args does not contain "a", we must add ".." to the menu
[ "${ls_args[*]/a/}" = "${ls_args[*]}" ] && dotdot=$'..\n'

while true; do
	sel="$(ls "$target" ${ls_args[@]} | grep -v '^\.$' | echo "$dotdot$(cat -)" | dmenu ${dm_args[@]})"
	ec=$?
	[ "$ec" -ne 0 ] && exit $ec

	c="$(echo "$sel" |cut -b1)"
	if [ "$c" = "/" ]; then
		newt="$sel"
	else
		newt="$(realpath "${target}/${sel}")"
	fi

	if [ -e "$newt" ]; then
		target="$newt"
		if [ ! -d "$target" ]; then
			echo "$target"
			exit 0
		fi
	fi
done