static.go

package main

// Copyright (C) 2013 Alexander Bauer, Luke Evers, Dylan Whichard,
// and contributors; (GPLv3) see LICENSE or doc.go

import (
	"github.com/SashaCrofter/staticdir"
	"io/ioutil"
	"os"
	"path"
)

// CompileStatic uses staticdir to translate a resource directory into
// static content. It returns the directory into which it copies.
func CompileStatic(dir string, conf *Config) (tmpdir string, err error) {
	// Create a directory in the OS's tempdir, (`/tmp`), with the
	// prefix being the name of the map.
	tmpdir, err = ioutil.TempDir("", conf.Name)
	if err != nil {
		return
	}

	// Create a translator via package staticdir.
	t := staticdir.New(dir, tmpdir)
	t.CopyFunc = TransformStatic
	t.CopyData = struct {
		*Config
		Version string
	}{conf, Version}

	return tmpdir, t.Translate()
}

// TransformStatic implements staticdir's CopyFunc function identity,
// and performs the following transformations.
//
//     .tmpl -> template engine
//
func TransformStatic(source, target string, fi os.FileInfo,
	data interface{}) error {

	switch path.Ext(source) {
	// Add other cases here, such as ".js".
	default:
		staticdir.TemplateCopy(source, target, fi, data)
	}

	return nil
}