move dependency on net/http in fs to httpfs

README.md

@@ -23,6 +23,7 @@ In your program, all your need to do is to import the generated package, initial
 ~~~ go
 import (
   "github.com/rakyll/statik/fs"
+  "github.com/rakyll/statik/fs/httpfs"
 
   _ "./statik" // TODO: Replace with the absolute import path
 )
@@ -34,7 +35,7 @@ import (
     log.Fatal(err)
   }
 
-  http.Handle("/public/", http.StripPrefix("/public/", http.FileServer(statikFS)))
+  http.Handle("/public/", http.StripPrefix("/public/", http.FileServer(httpfs.System(statikFS))))
   http.ListenAndServe(":8080", nil)
 ~~~
 

example/main.go

@@ -8,6 +8,7 @@ import (
 
 	_ "github.com/rakyll/statik/example/statik"
 	"github.com/rakyll/statik/fs"
+	"github.com/rakyll/statik/fs/httpfs"
 )
 
 // Before buildling, run go generate.
@@ -18,6 +19,6 @@ func main() {
 		log.Fatal(err)
 	}
 
-	http.Handle("/public/", http.StripPrefix("/public/", http.FileServer(statikFS)))
+	http.Handle("/public/", http.StripPrefix("/public/", http.FileServer(httpfs.System(statikFS))))
 	http.ListenAndServe(":8080", nil)
 }

fs/fs.go

@@ -22,7 +22,6 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
-	"net/http"
 	"os"
 	"path"
 	"sort"
@@ -36,10 +35,10 @@ var zipData string
 type file struct {
 	os.FileInfo
 	data []byte
-	fs   *statikFS
+	fs   *StatikFS
 }
 
-type statikFS struct {
+type StatikFS struct {
 	files map[string]file
 	dirs  map[string][]string
 }
@@ -52,7 +51,7 @@ func Register(data string) {
 
 // New creates a new file system with the registered zip contents data.
 // It unzips all files and stores them in an in-memory map.
-func New() (http.FileSystem, error) {
+func New() (*StatikFS, error) {
 	if zipData == "" {
 		return nil, errors.New("statik/fs: no zip data registered")
 	}
@@ -62,7 +61,7 @@ func New() (http.FileSystem, error) {
 	}
 	files := make(map[string]file, len(zipReader.File))
 	dirs := make(map[string][]string)
-	fs := &statikFS{files: files, dirs: dirs}
+	fs := &StatikFS{files: files, dirs: dirs}
 	for _, zipFile := range zipReader.File {
 		fi := zipFile.FileInfo()
 		f := file{FileInfo: fi, fs: fs}
@@ -121,7 +120,7 @@ func unzip(zf *zip.File) ([]byte, error) {
 // no file matching the given file name is found in the archive.
 // If a directory is requested, Open returns the file named "index.html"
 // in the requested directory, if that file exists.
-func (fs *statikFS) Open(name string) (http.File, error) {
+func (fs *StatikFS) Open(name string) (*httpFile, error) {
 	name = strings.Replace(name, "//", "/", -1)
 	if f, ok := fs.files[name]; ok {
 		return newHTTPFile(f), nil

fs/httpfs/httpfs.go

@@ -0,0 +1,21 @@
+package httpfs
+
+import (
+	"net/http"
+
+	"github.com/rakyll/statik/fs"
+)
+
+type system struct {
+	*fs.StatikFS
+}
+
+func System(fs *fs.StatikFS) system {
+	return system{
+		fs,
+	}
+}
+
+func (fs system) Open(name string) (http.File, error) {
+	return fs.StatikFS.Open(name)
+}

fs/walk.go

@@ -17,7 +17,6 @@ package fs
 import (
 	"bytes"
 	"io"
-	"net/http"
 	"path"
 	"path/filepath"
 )
@@ -27,7 +26,7 @@ import (
 // All errors that arise visiting files and directories are filtered by walkFn.
 //
 // As with filepath.Walk, if the walkFn returns filepath.SkipDir, then the directory is skipped.
-func Walk(hfs http.FileSystem, root string, walkFn filepath.WalkFunc) error {
+func Walk(hfs *StatikFS, root string, walkFn filepath.WalkFunc) error {
 	dh, err := hfs.Open(root)
 	if err != nil {
 		return err
@@ -67,7 +66,7 @@ func Walk(hfs http.FileSystem, root string, walkFn filepath.WalkFunc) error {
 
 // ReadFile reads the contents of the file of hfs specified by name.
 // Just as ioutil.ReadFile does.
-func ReadFile(hfs http.FileSystem, name string) ([]byte, error) {
+func ReadFile(hfs *StatikFS, name string) ([]byte, error) {
 	fh, err := hfs.Open(name)
 	if err != nil {
 		return nil, err