add install_from_cd.sh, requires wine sadly.

install_from_cd.sh

@@ -0,0 +1,82 @@
+#!/bin/sh
+
+# I mean... this sucks, I get it - but sadly we have to use Wine for this
+# because no one has made an installer extractor for Wine that works on
+# Linux. Sorry.
+
+# builds a pk3 file that's alphabetically sorted
+mk_pk3()
+{
+	tree -fi > ./build_contents.txt
+	sed -i '/build_contents/d' ./build_contents.txt
+	sed -i '/directories,/d' ./build_contents.txt
+	zip -0 "$1".pk3 -@ < ./build_contents.txt
+	rm ./build_contents.txt
+	mv "$1".pk3 ../"$1".pk3
+}
+
+SCRPATH="$( cd "$( dirname $(readlink -nf $0) )" && pwd )"
+OUTPK3DIR="pak0_retail.pk3dir"
+
+if ! [ -x "$(command -v wine)" ]; then
+	printf "Error: wine is not installed.\n" >&2
+	exit 1
+fi
+
+if ! [ $# -gt 0 ]; then
+	printf "Path to MOUNTED CD-ROM folder, e.g. /mnt/cdrom:\n"
+	read CDROM_PATH
+else
+	CDROM_PATH="$1"
+fi
+
+if ! [ -f "$CDROM_PATH"/rewolf/install.EXE ]; then
+	printf "Error: install.EXE not found in $CDROM_PATH.\n" >&2
+	exit 1
+fi
+
+# Set up a prefix that's 32-bit inside
+export WINEPREFIX="${SCRPATH}/prefix"
+export WINEARCH=win32
+DATA_PATH="${WINEPREFIX}/drive_c/Sierra/Gunman/"
+
+# Check if we need to install the content, or throw a warning.
+if ! [ -f "$SCRPATH/$OUTPK3DIR/liblist.gam" ]; then
+	# May already have been extracted here (debug)
+	if ! [ -f "$DATA_PATH"/gunman.exe ]; then
+		# Because /x does NOT preserve directories.
+		wine "$CDROM_PATH"/rewolf/install.EXE /s
+	fi
+
+	# Move rewolf to become OUTPK3DIR
+	mv "$DATA_PATH/rewolf" "$SCRPATH/$OUTPK3DIR"
+	# Logos need to be in the game-dir
+	mv "$DATA_PATH/logos" "$SCRPATH/$OUTPK3DIR/logos"
+else
+	printf "$OUTPK3DIR already exists... everything okay?\n"
+fi
+
+# Make the pk3 archive
+cd "$SCRPATH/$OUTPK3DIR"
+mk_pk3 pak0_cd
+
+# Make sure we're back in here
+cd "$SCRPATH"
+
+# imagemagick will help us get our icon
+if [ -x "$(command -v convert)" ]; then
+	printf "Detected ImageMagick's convert... giving you a nice icon!\n"
+	# check if we need an icon.tga
+	if ! [ -f "$SCRPATH/icon.tga" ]; then
+		convert "$DATA_PATH/rewolf.ico" "$SCRPATH/rewolf.tga"
+		rm "$SCRPATH/rewolf-0.tga"
+		mv "$SCRPATH/rewolf-1.tga" "$SCRPATH/icon.tga"
+	fi
+fi
+
+# Redundant - but you NEVER know where we'll execute the next two commands
+cd "$SCRPATH"
+
+# Be real careful here
+rm -rfv "./$OUTPK3DIR"
+rm -rfv "./prefix"