switch to batch script for compiling

.travis.yml

@@ -2,7 +2,7 @@ language: go
 go: "1.12"
 
 script:
-  - go run compiler/main.go
+  - ./build.sh
 
 deploy:
   - provider: releases

build.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+OSLIST=(windows darwin linux)
+ARCHLIST=(386 amd64)
+
+OSNAMES=(windows mac linux)
+ARCHNAMES=(x32 x64)
+
+for I in ${!OSLIST[*]}; do
+  for J in ${!ARCHLIST[*]}; do
+    export GOOS=${OSLIST[$I]}
+    export GOARCH=${ARCHLIST[$J]}
+    OUT=dist/shadowfox_${OSNAMES[$I]}_${ARCHNAMES[$J]}
+    if [ $GOOS = windows ]; then
+      OUT=${OUT}.exe
+    fi
+
+    go build -o $OUT
+  done
+done