#!/bin/sh
#
# DESCRIPTION:
#  parses a .desktop file, that matches in name to `$0`
#  and executes the `Exec` value.
#
# INSTALL:
#  ln -s <path/to/this/script> /usr/local/bin/app.desktop
#

XDG_DESKTOP_ENTRY_DIR=$HOME/.local/share/applications
set -ex
basepath=$(dirname "$0" | sed 's#/bin#/share/applications#')
basename=$(basename "$0" | sed -e 's/^_//' -e 's/.desktop$//')
if [ -e "${XDG_DESKTOP_ENTRY_DIR}/${basename}.desktop" ]; then
				desktop=${XDG_DESKTOP_ENTRY_DIR}/${basename}.desktop
else
				desktop=${basepath}/${basename}.desktop
fi
bin=$(awk '
/^TryExec=/{split($0,l,"="); if(not system("command -v l[2]")){exit 1}}
/^Exec=/{printf gensub(/Exec=([^%]+).*$/, "\\1", "")}
' "$desktop" | sed 's/%.$//')
exec ${bin} $@