Merge pull request #3382 from lxShaDoWxl/add_custom_fs_template

Add custom fs template

.travis.yml

@@ -35,6 +35,7 @@ install:
   - go get github.com/gogo/protobuf/proto
   - go get github.com/Knetic/govaluate
   - go get github.com/casbin/casbin
+  - go get github.com/elazarl/go-bindata-assetfs
   - go get -u honnef.co/go/tools/cmd/gosimple
   - go get -u github.com/mdempsky/unconvert
   - go get -u github.com/gordonklaus/ineffassign

fs.go

+package beego
+
+import (
+	"net/http"
+	"os"
+	"path/filepath"
+)
+
+type FileSystem struct {
+}
+
+func (d FileSystem) Open(name string) (http.File, error) {
+	return os.Open(name)
+}
+
+// Walk walks the file tree rooted at root in filesystem, calling walkFn for each file or
+// directory in the tree, including root. All errors that arise visiting files
+// and directories are filtered by walkFn.
+func Walk(fs http.FileSystem, root string, walkFn filepath.WalkFunc) error {
+
+	f, err := fs.Open(root)
+	if err != nil {
+		return err
+	}
+	info, err := f.Stat()
+	if err != nil {
+		err = walkFn(root, nil, err)
+	} else {
+		err = walk(fs, root, info, walkFn)
+	}
+	if err == filepath.SkipDir {
+		return nil
+	}
+	return err
+}
+
+// walk recursively descends path, calling walkFn.
+func walk(fs http.FileSystem, path string, info os.FileInfo, walkFn filepath.WalkFunc) error {
+	var err error
+	if !info.IsDir() {
+		return walkFn(path, info, nil)
+	}
+
+	dir, err := fs.Open(path)
+	defer dir.Close()
+	if err != nil {
+		if err1 := walkFn(path, info, err); err1 != nil {
+			return err1
+		}
+		return err
+	}
+	dirs, err := dir.Readdir(-1)
+	err1 := walkFn(path, info, err)
+	// If err != nil, walk can't walk into this directory.
+	// err1 != nil means walkFn want walk to skip this directory or stop walking.
+	// Therefore, if one of err and err1 isn't nil, walk will return.
+	if err != nil || err1 != nil {
+		// The caller's behavior is controlled by the return value, which is decided
+		// by walkFn. walkFn may ignore err and return nil.
+		// If walkFn returns SkipDir, it will be handled by the caller.
+		// So walk should return whatever walkFn returns.
+		return err1
+	}
+
+	for _, fileInfo := range dirs {
+		filename := filepath.Join(path, fileInfo.Name())
+		if err = walk(fs, filename, fileInfo, walkFn); err != nil {
+			if !fileInfo.IsDir() || err != filepath.SkipDir {
+				return err
+			}
+		}
+	}
+	return nil
+}

go.mod

@@ -15,6 +15,7 @@ require (
 	github.com/cupcake/rdb v0.0.0-20161107195141-43ba34106c76 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/edsrzf/mmap-go v0.0.0-20170320065105-0bce6a688712 // indirect
+	github.com/elazarl/go-bindata-assetfs v0.0.0-20180223110309-38087fe4dafb
 	github.com/go-redis/redis v6.14.2+incompatible
 	github.com/go-sql-driver/mysql v1.4.0
 	github.com/gogo/protobuf v1.1.1

go.sum

@@ -26,6 +26,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/edsrzf/mmap-go v0.0.0-20170320065105-0bce6a688712 h1:aaQcKT9WumO6JEJcRyTqFVq4XUZiUcKR2/GI31TOcz8=
 github.com/edsrzf/mmap-go v0.0.0-20170320065105-0bce6a688712/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
+github.com/elazarl/go-bindata-assetfs v0.0.0-20180223110309-38087fe4dafb h1:T6FhFH6fLQPEu7n7PauDhb4mhpxhlfaL7a7MZEpIgDc=
+github.com/elazarl/go-bindata-assetfs v0.0.0-20180223110309-38087fe4dafb/go.mod h1:v+YaWX3bdea5J/mo8dSETolEo7R71Vk1u8bnjau5yw4=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/go-redis/redis v6.14.2+incompatible h1:UE9pLhzmWf+xHNmZsoccjXosPicuiNaInPgym8nzfg0=

template.go

@@ -20,6 +20,7 @@ import (
 	"html/template"
 	"io"
 	"io/ioutil"
+	"net/http"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -40,6 +41,7 @@ var (
 	beeTemplateExt = []string{"tpl", "html"}
 	// beeTemplatePreprocessors stores associations of extension -> preprocessor handler
 	beeTemplateEngines = map[string]templatePreProcessor{}
+	beeTemplateFS      = defaultFSFunc
 )
 
 // ExecuteTemplate applies the template with name  to the specified data object,
@@ -181,12 +183,17 @@ func lockViewPaths() {
 // BuildTemplate will build all template files in a directory.
 // it makes beego can render any template file in view directory.
 func BuildTemplate(dir string, files ...string) error {
-	if _, err := os.Stat(dir); err != nil {
+	var err error
+	fs := beeTemplateFS()
+	f, err := fs.Open(dir)
+	defer f.Close()
+	if err != nil {
 		if os.IsNotExist(err) {
 			return nil
 		}
 		return errors.New("dir open err")
 	}
+
 	beeTemplates, ok := beeViewPathTemplates[dir]
 	if !ok {
 		panic("Unknown view path: " + dir)
@@ -195,11 +202,11 @@ func BuildTemplate(dir string, files ...string) error {
 		root:  dir,
 		files: make(map[string][]string),
 	}
-	err := filepath.Walk(dir, func(path string, f os.FileInfo, err error) error {
+	err = Walk(fs, dir, func(path string, f os.FileInfo, err error) error {
 		return self.visit(path, f, err)
 	})
 	if err != nil {
-		fmt.Printf("filepath.Walk() returned %v\n", err)
+		fmt.Printf("Walk() returned %v\n", err)
 		return err
 	}
 	buildAllFiles := len(files) == 0
@@ -210,11 +217,11 @@ func BuildTemplate(dir string, files ...string) error {
 				ext := filepath.Ext(file)
 				var t *template.Template
 				if len(ext) == 0 {
-					t, err = getTemplate(self.root, file, v...)
+					t, err = getTemplate(self.root, fs, file, v...)
 				} else if fn, ok := beeTemplateEngines[ext[1:]]; ok {
 					t, err = fn(self.root, file, beegoTplFuncMap)
 				} else {
-					t, err = getTemplate(self.root, file, v...)
+					t, err = getTemplate(self.root, fs, file, v...)
 				}
 				if err != nil {
 					logs.Error("parse template err:", file, err)
@@ -229,9 +236,10 @@ func BuildTemplate(dir string, files ...string) error {
 	return nil
 }
 
-func getTplDeep(root, file, parent string, t *template.Template) (*template.Template, [][]string, error) {
+func getTplDeep(root string, fs http.FileSystem, file string, parent string, t *template.Template) (*template.Template, [][]string, error) {
 	var fileAbsPath string
 	var rParent string
+	var err error
 	if filepath.HasPrefix(file, "../") {
 		rParent = filepath.Join(filepath.Dir(parent), file)
 		fileAbsPath = filepath.Join(root, filepath.Dir(parent), file)
@@ -239,10 +247,12 @@ func getTplDeep(root, file, parent string, t *template.Template) (*template.Temp
 		rParent = file
 		fileAbsPath = filepath.Join(root, file)
 	}
-	if e := utils.FileExists(fileAbsPath); !e {
+	f, err := fs.Open(fileAbsPath)
+	defer f.Close()
+	if err != nil {
 		panic("can't find template file:" + file)
 	}
-	data, err := ioutil.ReadFile(fileAbsPath)
+	data, err := ioutil.ReadAll(f)
 	if err != nil {
 		return nil, [][]string{}, err
 	}
@@ -261,7 +271,7 @@ func getTplDeep(root, file, parent string, t *template.Template) (*template.Temp
 			if !HasTemplateExt(m[1]) {
 				continue
 			}
-			_, _, err = getTplDeep(root, m[1], rParent, t)
+			_, _, err = getTplDeep(root, fs, m[1], rParent, t)
 			if err != nil {
 				return nil, [][]string{}, err
 			}
@@ -270,14 +280,14 @@ func getTplDeep(root, file, parent string, t *template.Template) (*template.Temp
 	return t, allSub, nil
 }
 
-func getTemplate(root, file string, others ...string) (t *template.Template, err error) {
+func getTemplate(root string, fs http.FileSystem, file string, others ...string) (t *template.Template, err error) {
 	t = template.New(file).Delims(BConfig.WebConfig.TemplateLeft, BConfig.WebConfig.TemplateRight).Funcs(beegoTplFuncMap)
 	var subMods [][]string
-	t, subMods, err = getTplDeep(root, file, "", t)
+	t, subMods, err = getTplDeep(root, fs, file, "", t)
 	if err != nil {
 		return nil, err
 	}
-	t, err = _getTemplate(t, root, subMods, others...)
+	t, err = _getTemplate(t, root, fs, subMods, others...)
 
 	if err != nil {
 		return nil, err
@@ -285,7 +295,7 @@ func getTemplate(root, file string, others ...string) (t *template.Template, err
 	return
 }
 
-func _getTemplate(t0 *template.Template, root string, subMods [][]string, others ...string) (t *template.Template, err error) {
+func _getTemplate(t0 *template.Template, root string, fs http.FileSystem, subMods [][]string, others ...string) (t *template.Template, err error) {
 	t = t0
 	for _, m := range subMods {
 		if len(m) == 2 {
@@ -297,11 +307,11 @@ func _getTemplate(t0 *template.Template, root string, subMods [][]string, others
 			for _, otherFile := range others {
 				if otherFile == m[1] {
 					var subMods1 [][]string
-					t, subMods1, err = getTplDeep(root, otherFile, "", t)
+					t, subMods1, err = getTplDeep(root, fs, otherFile, "", t)
 					if err != nil {
 						logs.Trace("template parse file err:", err)
 					} else if len(subMods1) > 0 {
-						t, err = _getTemplate(t, root, subMods1, others...)
+						t, err = _getTemplate(t, root, fs, subMods1, others...)
 					}
 					break
 				}
@@ -310,8 +320,16 @@ func _getTemplate(t0 *template.Template, root string, subMods [][]string, others
 			for _, otherFile := range others {
 				var data []byte
 				fileAbsPath := filepath.Join(root, otherFile)
-				data, err = ioutil.ReadFile(fileAbsPath)
+				f, err := fs.Open(fileAbsPath)
+				if err != nil {
+					f.Close()
+					logs.Trace("template file parse error, not success open file:", err)
+					continue
+				}
+				data, err = ioutil.ReadAll(f)
+				f.Close()
 				if err != nil {
+					logs.Trace("template file parse error, not success read file:", err)
 					continue
 				}
 				reg := regexp.MustCompile(BConfig.WebConfig.TemplateLeft + "[ ]*define[ ]+\"([^\"]+)\"")
@@ -319,11 +337,14 @@ func _getTemplate(t0 *template.Template, root string, subMods [][]string, others
 				for _, sub := range allSub {
 					if len(sub) == 2 && sub[1] == m[1] {
 						var subMods1 [][]string
-						t, subMods1, err = getTplDeep(root, otherFile, "", t)
+						t, subMods1, err = getTplDeep(root, fs, otherFile, "", t)
 						if err != nil {
 							logs.Trace("template parse file err:", err)
 						} else if len(subMods1) > 0 {
-							t, err = _getTemplate(t, root, subMods1, others...)
+							t, err = _getTemplate(t, root, fs, subMods1, others...)
+							if err != nil {
+								logs.Trace("template parse file err:", err)
+							}
 						}
 						break
 					}
@@ -335,6 +356,15 @@ func _getTemplate(t0 *template.Template, root string, subMods [][]string, others
 	return
 }
 
+type templateFSFunc func() http.FileSystem
+
+func defaultFSFunc() http.FileSystem {
+	return FileSystem{}
+}
+func SetTemplateFSFunc(fnt templateFSFunc) {
+	beeTemplateFS = fnt
+}
+
 // SetViewsPath sets view directory path in beego application.
 func SetViewsPath(path string) *App {
 	BConfig.WebConfig.ViewsPath = path

template_test.go

@@ -16,6 +16,9 @@ package beego
 
 import (
 	"bytes"
+	"github.com/astaxie/beego/testdata"
+	"github.com/elazarl/go-bindata-assetfs"
+	"net/http"
 	"os"
 	"path/filepath"
 	"testing"
@@ -256,3 +259,58 @@ func TestTemplateLayout(t *testing.T) {
 	}
 	os.RemoveAll(dir)
 }
+
+type TestingFileSystem struct {
+	assetfs *assetfs.AssetFS
+}
+
+func (d TestingFileSystem) Open(name string) (http.File, error) {
+	return d.assetfs.Open(name)
+}
+
+var outputBinData = `<!DOCTYPE html>
+<html>
+  <head>
+    <title>beego welcome template</title>
+  </head>
+  <body>
+
+	
+<h1>Hello, blocks!</h1>
+
+	
+<h1>Hello, astaxie!</h1>
+
+	
+
+	<h2>Hello</h2>
+	<p> This is SomeVar: val</p>
+  </body>
+</html>
+`
+
+func TestFsBinData(t *testing.T) {
+	SetTemplateFSFunc(func() http.FileSystem {
+		return TestingFileSystem{&assetfs.AssetFS{Asset: testdata.Asset, AssetDir: testdata.AssetDir, AssetInfo: testdata.AssetInfo}}
+	})
+	dir := "views"
+	if err := AddViewPath("views"); err != nil {
+		t.Fatal(err)
+	}
+	beeTemplates := beeViewPathTemplates[dir]
+	if len(beeTemplates) != 3 {
+		t.Fatalf("should be 3 but got %v", len(beeTemplates))
+	}
+	if err := beeTemplates["index.tpl"].ExecuteTemplate(os.Stdout, "index.tpl", map[string]string{"Title": "Hello", "SomeVar": "val"}); err != nil {
+		t.Fatal(err)
+	}
+	out := bytes.NewBufferString("")
+	if err := beeTemplates["index.tpl"].ExecuteTemplate(out, "index.tpl", map[string]string{"Title": "Hello", "SomeVar": "val"}); err != nil {
+		t.Fatal(err)
+	}
+
+	if out.String() != outputBinData {
+		t.Log(out.String())
+		t.Fatal("Compare failed")
+	}
+}

testdata/Makefile

+build_view:
+	$(GOPATH)/bin/go-bindata-assetfs -pkg testdata views/...
\ No newline at end of file

testdata/bindata.go

+// Code generated by go-bindata.
+// sources:
+// views/blocks/block.tpl
+// views/header.tpl
+// views/index.tpl
+// DO NOT EDIT!
+
+package testdata
+
+import (
+	"bytes"
+	"compress/gzip"
+	"fmt"
+	"github.com/elazarl/go-bindata-assetfs"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+func bindataRead(data []byte, name string) ([]byte, error) {
+	gz, err := gzip.NewReader(bytes.NewBuffer(data))
+	if err != nil {
+		return nil, fmt.Errorf("Read %q: %v", name, err)
+	}
+
+	var buf bytes.Buffer
+	_, err = io.Copy(&buf, gz)
+	clErr := gz.Close()
+
+	if err != nil {
+		return nil, fmt.Errorf("Read %q: %v", name, err)
+	}
+	if clErr != nil {
+		return nil, err
+	}
+
+	return buf.Bytes(), nil
+}
+
+type asset struct {
+	bytes []byte
+	info  os.FileInfo
+}
+
+type bindataFileInfo struct {
+	name    string
+	size    int64
+	mode    os.FileMode
+	modTime time.Time
+}
+
+func (fi bindataFileInfo) Name() string {
+	return fi.name
+}
+func (fi bindataFileInfo) Size() int64 {
+	return fi.size
+}
+func (fi bindataFileInfo) Mode() os.FileMode {
+	return fi.mode
+}
+func (fi bindataFileInfo) ModTime() time.Time {
+	return fi.modTime
+}
+func (fi bindataFileInfo) IsDir() bool {
+	return false
+}
+func (fi bindataFileInfo) Sys() interface{} {
+	return nil
+}
+
+var _viewsBlocksBlockTpl = []byte("\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff\xaa\xae\x4e\x49\x4d\xcb\xcc\x4b\x55\x50\x4a\xca\xc9\x4f\xce\x56\xaa\xad\xe5\xb2\xc9\x30\xb4\xf3\x48\xcd\xc9\xc9\xd7\x51\x00\x8b\x15\x2b\xda\xe8\x67\x18\xda\x71\x55\x57\xa7\xe6\xa5\xd4\xd6\x02\x02\x00\x00\xff\xff\xfd\xa1\x7a\xf6\x32\x00\x00\x00")
+
+func viewsBlocksBlockTplBytes() ([]byte, error) {
+	return bindataRead(
+		_viewsBlocksBlockTpl,
+		"views/blocks/block.tpl",
+	)
+}
+
+func viewsBlocksBlockTpl() (*asset, error) {
+	bytes, err := viewsBlocksBlockTplBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	info := bindataFileInfo{name: "views/blocks/block.tpl", size: 50, mode: os.FileMode(436), modTime: time.Unix(1541431067, 0)}
+	a := &asset{bytes: bytes, info: info}
+	return a, nil
+}
+
+var _viewsHeaderTpl = []byte("\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff\xaa\xae\x4e\x49\x4d\xcb\xcc\x4b\x55\x50\xca\x48\x4d\x4c\x49\x2d\x52\xaa\xad\xe5\xb2\xc9\x30\xb4\xf3\x48\xcd\xc9\xc9\xd7\x51\x48\x2c\x2e\x49\xac\xc8\x4c\x55\xb4\xd1\xcf\x30\xb4\xe3\xaa\xae\x4e\xcd\x4b\xa9\xad\x05\x04\x00\x00\xff\xff\xe4\x12\x47\x01\x34\x00\x00\x00")
+
+func viewsHeaderTplBytes() ([]byte, error) {
+	return bindataRead(
+		_viewsHeaderTpl,
+		"views/header.tpl",
+	)
+}
+
+func viewsHeaderTpl() (*asset, error) {
+	bytes, err := viewsHeaderTplBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	info := bindataFileInfo{name: "views/header.tpl", size: 52, mode: os.FileMode(436), modTime: time.Unix(1541431067, 0)}
+	a := &asset{bytes: bytes, info: info}
+	return a, nil
+}
+
+var _viewsIndexTpl = []byte("\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\xff\x64\x8f\xbd\x8a\xc3\x30\x10\x84\x6b\xeb\x29\xe6\xfc\x00\x16\xb8\x3c\x16\x35\x77\xa9\x13\x88\x09\xa4\xf4\xcf\x12\x99\x48\x48\xd8\x82\x10\x84\xde\x3d\xc8\x8a\x8b\x90\x6a\xa4\xd9\x6f\xd8\x59\xfa\xf9\x3f\xfe\x75\xd7\xd3\x01\x3a\x58\xa3\x04\x15\x01\x48\x73\x3f\xe5\x07\x40\x61\x0e\x86\xd5\xc0\x7c\x73\x78\xb0\x19\x9d\x65\x04\xb6\xde\xf4\x81\x49\x96\x69\x8e\xc8\x3d\x43\x83\x9b\x9e\x4a\x88\x2a\xc6\x9d\x43\x3d\x18\x37\xde\xeb\x94\x3e\xdd\x1c\xe1\xe5\xcb\xde\xe0\x55\x6e\xd2\x04\x6f\x32\x20\x2a\xd2\xad\x8a\x11\x4d\x97\x57\x22\x25\x92\xba\x55\xa2\x22\xaf\xd0\xe9\x79\xc5\xbc\xe2\xec\x2c\x5f\xfa\xe5\x17\x99\x7b\x7f\x36\xd2\x97\x8a\xa5\x19\xc9\x72\xe7\x2b\x00\x00\xff\xff\xb2\x39\xca\x9f\xff\x00\x00\x00")
+
+func viewsIndexTplBytes() ([]byte, error) {
+	return bindataRead(
+		_viewsIndexTpl,
+		"views/index.tpl",
+	)
+}
+
+func viewsIndexTpl() (*asset, error) {
+	bytes, err := viewsIndexTplBytes()
+	if err != nil {
+		return nil, err
+	}
+
+	info := bindataFileInfo{name: "views/index.tpl", size: 255, mode: os.FileMode(436), modTime: time.Unix(1541434906, 0)}
+	a := &asset{bytes: bytes, info: info}
+	return a, nil
+}
+
+// Asset loads and returns the asset for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func Asset(name string) ([]byte, error) {
+	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	if f, ok := _bindata[cannonicalName]; ok {
+		a, err := f()
+		if err != nil {
+			return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
+		}
+		return a.bytes, nil
+	}
+	return nil, fmt.Errorf("Asset %s not found", name)
+}
+
+// MustAsset is like Asset but panics when Asset would return an error.
+// It simplifies safe initialization of global variables.
+func MustAsset(name string) []byte {
+	a, err := Asset(name)
+	if err != nil {
+		panic("asset: Asset(" + name + "): " + err.Error())
+	}
+
+	return a
+}
+
+// AssetInfo loads and returns the asset info for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func AssetInfo(name string) (os.FileInfo, error) {
+	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	if f, ok := _bindata[cannonicalName]; ok {
+		a, err := f()
+		if err != nil {
+			return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
+		}
+		return a.info, nil
+	}
+	return nil, fmt.Errorf("AssetInfo %s not found", name)
+}
+
+// AssetNames returns the names of the assets.
+func AssetNames() []string {
+	names := make([]string, 0, len(_bindata))
+	for name := range _bindata {
+		names = append(names, name)
+	}
+	return names
+}
+
+// _bindata is a table, holding each asset generator, mapped to its name.
+var _bindata = map[string]func() (*asset, error){
+	"views/blocks/block.tpl": viewsBlocksBlockTpl,
+	"views/header.tpl":       viewsHeaderTpl,
+	"views/index.tpl":        viewsIndexTpl,
+}
+
+// AssetDir returns the file names below a certain
+// directory embedded in the file by go-bindata.
+// For example if you run go-bindata on data/... and data contains the
+// following hierarchy:
+//     data/
+//       foo.txt
+//       img/
+//         a.png
+//         b.png
+// then AssetDir("data") would return []string{"foo.txt", "img"}
+// AssetDir("data/img") would return []string{"a.png", "b.png"}
+// AssetDir("foo.txt") and AssetDir("notexist") would return an error
+// AssetDir("") will return []string{"data"}.
+func AssetDir(name string) ([]string, error) {
+	node := _bintree
+	if len(name) != 0 {
+		cannonicalName := strings.Replace(name, "\\", "/", -1)
+		pathList := strings.Split(cannonicalName, "/")
+		for _, p := range pathList {
+			node = node.Children[p]
+			if node == nil {
+				return nil, fmt.Errorf("Asset %s not found", name)
+			}
+		}
+	}
+	if node.Func != nil {
+		return nil, fmt.Errorf("Asset %s not found", name)
+	}
+	rv := make([]string, 0, len(node.Children))
+	for childName := range node.Children {
+		rv = append(rv, childName)
+	}
+	return rv, nil
+}
+
+type bintree struct {
+	Func     func() (*asset, error)
+	Children map[string]*bintree
+}
+
+var _bintree = &bintree{nil, map[string]*bintree{
+	"views": &bintree{nil, map[string]*bintree{
+		"blocks": &bintree{nil, map[string]*bintree{
+			"block.tpl": &bintree{viewsBlocksBlockTpl, map[string]*bintree{}},
+		}},
+		"header.tpl": &bintree{viewsHeaderTpl, map[string]*bintree{}},
+		"index.tpl":  &bintree{viewsIndexTpl, map[string]*bintree{}},
+	}},
+}}
+
+// RestoreAsset restores an asset under the given directory
+func RestoreAsset(dir, name string) error {
+	data, err := Asset(name)
+	if err != nil {
+		return err
+	}
+	info, err := AssetInfo(name)
+	if err != nil {
+		return err
+	}
+	err = os.MkdirAll(_filePath(dir, filepath.Dir(name)), os.FileMode(0755))
+	if err != nil {
+		return err
+	}
+	err = ioutil.WriteFile(_filePath(dir, name), data, info.Mode())
+	if err != nil {
+		return err
+	}
+	err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// RestoreAssets restores an asset under the given directory recursively
+func RestoreAssets(dir, name string) error {
+	children, err := AssetDir(name)
+	// File
+	if err != nil {
+		return RestoreAsset(dir, name)
+	}
+	// Dir
+	for _, child := range children {
+		err = RestoreAssets(dir, filepath.Join(name, child))
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func _filePath(dir, name string) string {
+	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+}
+
+func assetFS() *assetfs.AssetFS {
+	assetInfo := func(path string) (os.FileInfo, error) {
+		return os.Stat(path)
+	}
+	for k := range _bintree.Children {
+		return &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, AssetInfo: assetInfo, Prefix: k}
+	}
+	panic("unreachable")
+}

testdata/views/blocks/block.tpl

+{{define "block"}}
+<h1>Hello, blocks!</h1>
+{{end}}
\ No newline at end of file

testdata/views/header.tpl

+{{define "header"}}
+<h1>Hello, astaxie!</h1>
+{{end}}
\ No newline at end of file

testdata/views/index.tpl

+<!DOCTYPE html>
+<html>
+  <head>
+    <title>beego welcome template</title>
+  </head>
+  <body>
+
+	{{template "block"}}
+	{{template "header"}}
+	{{template "blocks/block.tpl"}}
+
+	<h2>{{ .Title }}</h2>
+	<p> This is SomeVar: {{ .SomeVar }}</p>
+  </body>
+</html>

vendor/github.com/cloudflare/golz4/src/lz4hc.h

+/*
+   LZ4 HC - High Compression Mode of LZ4
+   Header File
+   Copyright (C) 2011-2014, Yann Collet.
+   BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+
+       * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+       * Redistributions in binary form must reproduce the above
+   copyright notice, this list of conditions and the following disclaimer
+   in the documentation and/or other materials provided with the
+   distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+   You can contact the author at :
+   - LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html
+   - LZ4 source repository : http://code.google.com/p/lz4/
+*/
+#pragma once
+
+
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+
+int LZ4_compressHC (const char* source, char* dest, int inputSize);
+/*
+LZ4_compressHC :
+    return : the number of bytes in compressed buffer dest
+             or 0 if compression fails.
+    note : destination buffer must be already allocated.
+        To avoid any problem, size it to handle worst cases situations (input data not compressible)
+        Worst case size evaluation is provided by function LZ4_compressBound() (see "lz4.h")
+*/
+
+int LZ4_compressHC_limitedOutput (const char* source, char* dest, int inputSize, int maxOutputSize);
+/*
+LZ4_compress_limitedOutput() :
+    Compress 'inputSize' bytes from 'source' into an output buffer 'dest' of maximum size 'maxOutputSize'.
+    If it cannot achieve it, compression will stop, and result of the function will be zero.
+    This function never writes outside of provided output buffer.
+
+    inputSize  : Max supported value is 1 GB
+    maxOutputSize : is maximum allowed size into the destination buffer (which must be already allocated)
+    return : the number of output bytes written in buffer 'dest'
+             or 0 if compression fails.
+*/
+
+
+int LZ4_compressHC2 (const char* source, char* dest, int inputSize, int compressionLevel);
+int LZ4_compressHC2_limitedOutput (const char* source, char* dest, int inputSize, int maxOutputSize, int compressionLevel);
+/*
+    Same functions as above, but with programmable 'compressionLevel'.
+    Recommended values are between 4 and 9, although any value between 0 and 16 will work.
+    'compressionLevel'==0 means use default 'compressionLevel' value.
+    Values above 16 behave the same as 16.
+    Equivalent variants exist for all other compression functions below.
+*/
+
+/* Note :
+   Decompression functions are provided within LZ4 source code (see "lz4.h") (BSD license)
+*/
+
+
+/**************************************
+   Using an external allocation
+**************************************/
+int LZ4_sizeofStateHC(void);
+int LZ4_compressHC_withStateHC               (void* state, const char* source, char* dest, int inputSize);
+int LZ4_compressHC_limitedOutput_withStateHC (void* state, const char* source, char* dest, int inputSize, int maxOutputSize);
+
+int LZ4_compressHC2_withStateHC              (void* state, const char* source, char* dest, int inputSize, int compressionLevel);
+int LZ4_compressHC2_limitedOutput_withStateHC(void* state, const char* source, char* dest, int inputSize, int maxOutputSize, int compressionLevel);
+
+/*
+These functions are provided should you prefer to allocate memory for compression tables with your own allocation methods.
+To know how much memory must be allocated for the compression tables, use :
+int LZ4_sizeofStateHC();
+
+Note that tables must be aligned for pointer (32 or 64 bits), otherwise compression will fail (return code 0).
+
+The allocated memory can be provided to the compression functions using 'void* state' parameter.
+LZ4_compress_withStateHC() and LZ4_compress_limitedOutput_withStateHC() are equivalent to previously described functions.
+They just use the externally allocated memory for state instead of allocating their own (on stack, or on heap).
+*/
+
+
+
+/**************************************
+   Experimental Streaming Functions
+**************************************/
+#define LZ4_STREAMHCSIZE_U64 32774
+#define LZ4_STREAMHCSIZE     (LZ4_STREAMHCSIZE_U64 * sizeof(unsigned long long))
+typedef struct { unsigned long long table[LZ4_STREAMHCSIZE_U64]; } LZ4_streamHC_t;
+/*
+LZ4_streamHC_t
+This structure allows static allocation of LZ4 HC streaming state.
+State must then be initialized using LZ4_resetStreamHC() before first use.
+
+Static allocation should only be used with statically linked library.
+If you want to use LZ4 as a DLL, please use construction functions below, which are more future-proof.
+*/
+
+
+LZ4_streamHC_t* LZ4_createStreamHC(void);
+int             LZ4_freeStreamHC (LZ4_streamHC_t* LZ4_streamHCPtr);
+/*
+These functions create and release memory for LZ4 HC streaming state.
+Newly created states are already initialized.
+Existing state space can be re-used anytime using LZ4_resetStreamHC().
+If you use LZ4 as a DLL, please use these functions instead of direct struct allocation,
+to avoid size mismatch between different versions.
+*/
+
+void LZ4_resetStreamHC (LZ4_streamHC_t* LZ4_streamHCPtr, int compressionLevel);
+int  LZ4_loadDictHC (LZ4_streamHC_t* LZ4_streamHCPtr, const char* dictionary, int dictSize);
+
+int LZ4_compressHC_continue (LZ4_streamHC_t* LZ4_streamHCPtr, const char* source, char* dest, int inputSize);
+int LZ4_compressHC_limitedOutput_continue (LZ4_streamHC_t* LZ4_streamHCPtr, const char* source, char* dest, int inputSize, int maxOutputSize);
+
+int LZ4_saveDictHC (LZ4_streamHC_t* LZ4_streamHCPtr, char* safeBuffer, int maxDictSize);
+
+/*
+These functions compress data in successive blocks of any size, using previous blocks as dictionary.
+One key assumption is that each previous block will remain read-accessible while compressing next block.
+
+Before starting compression, state must be properly initialized, using LZ4_resetStreamHC().
+A first "fictional block" can then be designated as initial dictionary, using LZ4_loadDictHC() (Optional).
+
+Then, use LZ4_compressHC_continue() or LZ4_compressHC_limitedOutput_continue() to compress each successive block.
+They work like usual LZ4_compressHC() or LZ4_compressHC_limitedOutput(), but use previous memory blocks to improve compression.
+Previous memory blocks (including initial dictionary when present) must remain accessible and unmodified during compression.
+
+If, for any reason, previous data block can't be preserved in memory during next compression block,
+you must save it to a safer memory space,
+using LZ4_saveDictHC().
+*/
+
+
+
+/**************************************
+ * Deprecated Streaming Functions
+ * ************************************/
+/* Note : these streaming functions follows the older model, and should no longer be used */
+void* LZ4_createHC (const char* inputBuffer);
+char* LZ4_slideInputBufferHC (void* LZ4HC_Data);
+int   LZ4_freeHC (void* LZ4HC_Data);
+
+int   LZ4_compressHC2_continue (void* LZ4HC_Data, const char* source, char* dest, int inputSize, int compressionLevel);
+int   LZ4_compressHC2_limitedOutput_continue (void* LZ4HC_Data, const char* source, char* dest, int inputSize, int maxOutputSize, int compressionLevel);
+
+int   LZ4_sizeofStreamStateHC(void);
+int   LZ4_resetStreamStateHC(void* state, const char* inputBuffer);
+
+
+#if defined (__cplusplus)
+}
+#endif

vendor/github.com/elazarl/go-bindata-assetfs/LICENSE

+Copyright (c) 2014, Elazar Leibovich
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/elazarl/go-bindata-assetfs/README.md

+# go-bindata-assetfs
+
+Serve embedded files from [jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata) with `net/http`.
+
+[GoDoc](http://godoc.org/github.com/elazarl/go-bindata-assetfs)
+
+### Installation
+
+Install with
+
+    $ go get github.com/jteeuwen/go-bindata/...
+    $ go get github.com/elazarl/go-bindata-assetfs/...
+
+### Creating embedded data
+
+Usage is identical to [jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata) usage,
+instead of running `go-bindata` run `go-bindata-assetfs`.
+
+The tool will create a `bindata_assetfs.go` file, which contains the embedded data.
+
+A typical use case is
+
+    $ go-bindata-assetfs data/...
+
+### Using assetFS in your code
+
+The generated file provides an `assetFS()` function that returns a `http.Filesystem`
+wrapping the embedded files. What you usually want to do is:
+
+    http.Handle("/", http.FileServer(assetFS()))
+
+This would run an HTTP server serving the embedded files.
+
+## Without running binary tool
+
+You can always just run the `go-bindata` tool, and then
+
+use
+
+     import "github.com/elazarl/go-bindata-assetfs"
+     ...
+     http.Handle("/",
+        http.FileServer(
+        &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, AssetInfo: AssetInfo, Prefix: "data"}))
+
+to serve files embedded from the `data` directory.

vendor/github.com/elazarl/go-bindata-assetfs/assetfs.go

+package assetfs
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+var (
+	defaultFileTimestamp = time.Now()
+)
+
+// FakeFile implements os.FileInfo interface for a given path and size
+type FakeFile struct {
+	// Path is the path of this file
+	Path string
+	// Dir marks of the path is a directory
+	Dir bool
+	// Len is the length of the fake file, zero if it is a directory
+	Len int64
+	// Timestamp is the ModTime of this file
+	Timestamp time.Time
+}
+
+func (f *FakeFile) Name() string {
+	_, name := filepath.Split(f.Path)
+	return name
+}
+
+func (f *FakeFile) Mode() os.FileMode {
+	mode := os.FileMode(0644)
+	if f.Dir {
+		return mode | os.ModeDir
+	}
+	return mode
+}
+
+func (f *FakeFile) ModTime() time.Time {
+	return f.Timestamp
+}
+
+func (f *FakeFile) Size() int64 {
+	return f.Len
+}
+
+func (f *FakeFile) IsDir() bool {
+	return f.Mode().IsDir()
+}
+
+func (f *FakeFile) Sys() interface{} {
+	return nil
+}
+
+// AssetFile implements http.File interface for a no-directory file with content
+type AssetFile struct {
+	*bytes.Reader
+	io.Closer
+	FakeFile
+}
+
+func NewAssetFile(name string, content []byte, timestamp time.Time) *AssetFile {
+	if timestamp.IsZero() {
+		timestamp = defaultFileTimestamp
+	}
+	return &AssetFile{
+		bytes.NewReader(content),
+		ioutil.NopCloser(nil),
+		FakeFile{name, false, int64(len(content)), timestamp}}
+}
+
+func (f *AssetFile) Readdir(count int) ([]os.FileInfo, error) {
+	return nil, errors.New("not a directory")
+}
+
+func (f *AssetFile) Size() int64 {
+	return f.FakeFile.Size()
+}
+
+func (f *AssetFile) Stat() (os.FileInfo, error) {
+	return f, nil
+}
+
+// AssetDirectory implements http.File interface for a directory
+type AssetDirectory struct {
+	AssetFile
+	ChildrenRead int
+	Children     []os.FileInfo
+}
+
+func NewAssetDirectory(name string, children []string, fs *AssetFS) *AssetDirectory {
+	fileinfos := make([]os.FileInfo, 0, len(children))
+	for _, child := range children {
+		_, err := fs.AssetDir(filepath.Join(name, child))
+		fileinfos = append(fileinfos, &FakeFile{child, err == nil, 0, time.Time{}})
+	}
+	return &AssetDirectory{
+		AssetFile{
+			bytes.NewReader(nil),
+			ioutil.NopCloser(nil),
+			FakeFile{name, true, 0, time.Time{}},
+		},
+		0,
+		fileinfos}
+}
+
+func (f *AssetDirectory) Readdir(count int) ([]os.FileInfo, error) {
+	if count <= 0 {
+		return f.Children, nil
+	}
+	if f.ChildrenRead+count > len(f.Children) {
+		count = len(f.Children) - f.ChildrenRead
+	}
+	rv := f.Children[f.ChildrenRead : f.ChildrenRead+count]
+	f.ChildrenRead += count
+	return rv, nil
+}
+
+func (f *AssetDirectory) Stat() (os.FileInfo, error) {
+	return f, nil
+}
+
+// AssetFS implements http.FileSystem, allowing
+// embedded files to be served from net/http package.
+type AssetFS struct {
+	// Asset should return content of file in path if exists
+	Asset func(path string) ([]byte, error)
+	// AssetDir should return list of files in the path
+	AssetDir func(path string) ([]string, error)
+	// AssetInfo should return the info of file in path if exists
+	AssetInfo func(path string) (os.FileInfo, error)
+	// Prefix would be prepended to http requests
+	Prefix string
+}
+
+func (fs *AssetFS) Open(name string) (http.File, error) {
+	name = path.Join(fs.Prefix, name)
+	if len(name) > 0 && name[0] == '/' {
+		name = name[1:]
+	}
+	if b, err := fs.Asset(name); err == nil {
+		timestamp := defaultFileTimestamp
+		if fs.AssetInfo != nil {
+			if info, err := fs.AssetInfo(name); err == nil {
+				timestamp = info.ModTime()
+			}
+		}
+		return NewAssetFile(name, b, timestamp), nil
+	}
+	if children, err := fs.AssetDir(name); err == nil {
+		return NewAssetDirectory(name, children, fs), nil
+	} else {
+		// If the error is not found, return an error that will
+		// result in a 404 error. Otherwise the server returns
+		// a 500 error for files not found.
+		if strings.Contains(err.Error(), "not found") {
+			return nil, os.ErrNotExist
+		}
+		return nil, err
+	}
+}

vendor/github.com/elazarl/go-bindata-assetfs/doc.go

+// assetfs allows packages to serve static content embedded
+// with the go-bindata tool with the standard net/http package.
+//
+// See https://github.com/jteeuwen/go-bindata for more information
+// about embedding binary data with go-bindata.
+//
+// Usage example, after running
+//    $ go-bindata data/...
+// use:
+//     http.Handle("/",
+//        http.FileServer(
+//        &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, Prefix: "data"}))
+package assetfs