update to use os.ExpandEnv(...) to parse env vars

README.md

@@ -1,9 +1,11 @@
 Package statics
 ===============
 
+![Project status](https://img.shields.io/badge/version-1.7.0-green.svg)
 [![Build Status](https://semaphoreci.com/api/v1/projects/1b97afa9-77f3-43ff-ad26-749958500745/601363/badge.svg)](https://semaphoreci.com/joeybloggs/statics)
 [![Go Report Card](http://goreportcard.com/badge/go-playground/statics)](http://goreportcard.com/report/go-playground/statics)
 [![GoDoc](https://godoc.org/github.com/go-playground/statics/static?status.svg)](https://godoc.org/github.com/go-playground/statics/static)
+![License](https://img.shields.io/dub/l/vibe-d.svg)
 
 Package statics embeds static files into your go applications. It provides helper methods and objects to retrieve embeded files and serve via http.
 
@@ -16,15 +18,12 @@ It has the following **unique** features:
 
 Installation
 ------------
-Use go get.
-
-	go get github.com/go-playground/statics
-
-or to update
 
+```shell
 	go get -u github.com/go-playground/statics
+```
 
-Then import the validator package into your own code.
+Then import the statics package into your own code.
 
 	import "github.com/go-playground/statics"
 

static/static.go

@@ -54,15 +54,8 @@ func New(config *Config, dirFile *DirFile) (*Files, error) {
 		processFiles(files, dirFile)
 	} else {
 
-		if config.AbsPkgPath[:7] == "$GOPATH" {
-
-			gopath := os.Getenv("GOPATH")
-
-			if len(gopath) == 0 {
-				return nil, errors.New("$GOPATH could not be found; you're setup is not correct")
-			}
-
-			config.AbsPkgPath = gopath + config.AbsPkgPath[7:]
+		if strings.Contains(config.AbsPkgPath, "$") {
+			config.AbsPkgPath = os.ExpandEnv(config.AbsPkgPath)
 		}
 
 		if !filepath.IsAbs(config.AbsPkgPath) {