1 files changed, 51 insertions, 0 deletions
diff --git a/games/doomretro/doomretro.sh b/games/doomretro/doomretro.sh
new file mode 100644
index 0000000000000..71b6a0b4f82dc
--- /dev/null
+++ b/games/doomretro/doomretro.sh
@@ -0,0 +1,51 @@
+#!/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