Adding linux build script.

build.sh

@@ -0,0 +1,100 @@
+#!/bin/bash
+
+path %programfiles(x86)%\lua\5.1\;$path;%programfiles(x86)%\Steam\SteamApps\common\GarrysMod\bin
+
+reldir() {
+	# both $1 and $2 are absolute paths beginning with /
+	# returns relative path to $2/$target from $1/$source
+	source=$1
+	target=$2
+
+	common_part=$source # for now
+	result="" # for now
+
+	while [[ "${target#$common_part}" == "${target}" ]]; do
+	    # no match, means that candidate common part is not correct
+	    # go up one level (reduce common part)
+	    common_part="$(dirname $common_part)"
+	    # and record that we went back, with correct / handling
+	    if [[ -z $result ]]; then
+	        result=".."
+	    else
+	        result="../$result"
+	    fi
+	done
+
+	if [[ $common_part == "/" ]]; then
+	    # special case for root (no common path)
+	    result="$result/"
+	fi
+
+	# since we now have identified the common part,
+	# compute the non-common part
+	forward_part="${target#$common_part}"
+
+	# and now stick all parts together
+	if [[ -n $result ]] && [[ -n $forward_part ]]; then
+	    result="$result$forward_part"
+	elif [[ -n $forward_part ]]; then
+	    # extra slash removal
+	    result="${forward_part:1}"
+	fi
+
+	echo $result
+}
+
+copy_flt() {
+	filter="$3"
+	source="$1"
+	target="$2"
+
+	find "$source" -type "d" | while read i; do mkdir -p "$target/$(reldir $source $i)"; done
+	find "$source" -name "$filter" -type "f" | while read i; do cp "$i" "$target/$(reldir $source $i)"; done
+}
+
+if [ ! -e builds ]; then
+	mkdir builds
+fi
+
+if [ -e tmp]; then
+	rm -rf tmp
+fi
+mkdir tmp
+
+# Root path
+workspace=$(pwd)
+
+echo Workspace: $workspace
+
+# Copy over
+copy_flt "." "tmp" "*.json"
+copy_flt "." "tmp" "*.wav"
+copy_flt "." "tmp" "*.lua"
+copy_flt "." "tmp" "*.mp3"
+copy_flt "." "tmp" "*.jpg"
+copy_flt "." "tmp" "*.png"
+copy_flt "." "tmp" "*.txt"
+
+# Compile LUA files
+pushd lua
+mkdir ../tmp/lua
+find . -type d | while read absfile; do
+	file="lua/$absfile"
+	echo "Creating $file..."
+	mkdir "../tmp/$file"
+)
+find . -type f -name '*.lua' | while read absfile; do
+	file="lua/$absfile"
+	echo "Compiling $file..."
+	luac52 -o "../tmp/$file" "$absfile" || (
+		echo "Could not compile $file, only copying..."
+		cp "$absfile" "../tmp/$file"
+	)
+)
+popd
+
+# Create the GMA file
+gmad create -folder "tmp" -out "builds/disguiser_swep.gma"
+
+# Clean up
+rm -rf tmp