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#!/bin/sh
# doomretro.sh by B. Watson. Part of the SlackBuilds.org doomretro build.
# Licensed under the WTFPL.
# 20200414 bkw: doomretro on Linux doesn't open any IWAD file by default,
# and doesn't offer a file-chooser dialog. So this wrapper script tries
# to pick a suitable IWAD to use, if it can find one. Notice that this
# only happens if we're run with no arguments.
# Can't use an absolute path for this, or else the engine expects to
# read doomretro.wad and write doomretro.cfg to the same directory as
# the binary.
realbin=doomretro.bin
if [ "$1" ]; then
# we got arguments, just use them as-is
exec $realbin "$@"
fi
# no args, so try to find an IWAD and pass it as an arg to the real exe.
wadpath="$DOOMWADDIR:\
$DOOMWADPATH:\
.:\
/usr/share/games/doom:\
/usr/local/share/games/doom:\
/usr/share/doomretro:\
/usr/share/doom:\
/usr/local/doom:\
$HOME:\
$HOME/doom:\
$HOME/.doom:\
$HOME/.doomwads"
iwads="doom2.wad:doom.wad:doom1.wad"
IFS=:
for dir in $wadpath; do
if [ -d "$dir" ]; then
for wad in $iwads; do
wad="$dir/$wad"
if [ -e "$wad" ]; then
echo "$( basename $0 ): Using $wad" 1>&2
exec $realbin "$wad"
fi
done
fi
done
# if we get, no wads found, let the real binary complain about it
exec $realbin
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