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Code Issues Releases Activity

feat(Template): use interface http.FileSystem

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This commit is contained in:
Viktor Vassilyev 2018-11-06 20:06:21 +06:00
parent 771fe35431
commit ca1b96f986
3 changed files with 59 additions and 73 deletions
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66
fs.go
View File

@ -6,25 +6,61 @@ import (
"path/filepath"
)
type IFileSystem interface {
http.FileSystem
Walk(string, filepath.WalkFunc) error
}
// A File is returned by a FileSystem's Open method and can be
// served by the FileServer implementation.
//
// The methods should behave the same as those on an *os.File.
type File struct {
*os.File
}
type FileSystem struct {
}
func (d FileSystem) Open(name string) (http.File, error) {
return os.Open(name)
}
func (d FileSystem) Walk(root string, walkFn filepath.WalkFunc) error {
return filepath.Walk(root, 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()
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())
err = walk(fs, filename, fileInfo, walkFn)
if err != nil {
if !fileInfo.IsDir() || err != filepath.SkipDir {
return err
}
}
}
return nil
}

13
template.go
View File

@ -20,6 +20,7 @@ import (
"html/template"
"io"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"regexp"
@ -201,7 +202,7 @@ func BuildTemplate(dir string, files ...string) error {
root: dir,
files: make(map[string][]string),
}
err = fs.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 {
@ -235,7 +236,7 @@ func BuildTemplate(dir string, files ...string) error {
return nil
}
func getTplDeep(root string, fs IFileSystem, file string, 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
@ -279,7 +280,7 @@ func getTplDeep(root string, fs IFileSystem, file string, parent string, t *temp
return t, allSub, nil
}
func getTemplate(root string, fs IFileSystem, 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, fs, file, "", t)
@ -294,7 +295,7 @@ func getTemplate(root string, fs IFileSystem, file string, others ...string) (t
return
}
func _getTemplate(t0 *template.Template, root string, fs IFileSystem, 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 {
@ -347,9 +348,9 @@ func _getTemplate(t0 *template.Template, root string, fs IFileSystem, subMods []
return
}
type templateFSFunc func() IFileSystem
type templateFSFunc func() http.FileSystem
func defaultFSFunc() IFileSystem {
func defaultFSFunc() http.FileSystem {
return FileSystem{}
}
func SetTemplateFSFunc(fnt templateFSFunc) {

53
template_test.go
View File

@ -267,57 +267,6 @@ type TestingFileSystem struct {
func (d TestingFileSystem) Open(name string) (http.File, error) {
return d.assetfs.Open(name)
}
func (d TestingFileSystem) Walk(root string, walkFn filepath.WalkFunc) error {
f, err := d.Open(root)
if err != nil {
return err
}
info, err := f.Stat()
if err != nil {
err = walkFn(root, nil, err)
} else {
err = d.walk(root, info, walkFn)
}
if err == filepath.SkipDir {
return nil
}
return err
}
// walk recursively descends path, calling walkFn.
func (d TestingFileSystem) walk(path string, info os.FileInfo, walkFn filepath.WalkFunc) error {
var err error
if !info.IsDir() {
return walkFn(path, info, nil)
}
dir, err := d.Open(path)
defer dir.Close()
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())
err = d.walk(filename, fileInfo, walkFn)
if err != nil {
if !fileInfo.IsDir() || err != filepath.SkipDir {
return err
}
}
}
return nil
}
var outputBinData = `<!DOCTYPE html>
<html>
@ -341,7 +290,7 @@ var outputBinData = `<!DOCTYPE html>
`
func TestFsBinData(t *testing.T) {
SetTemplateFSFunc(func() IFileSystem {
SetTemplateFSFunc(func() http.FileSystem {
return TestingFileSystem{&assetfs.AssetFS{Asset: testdata.Asset, AssetDir: testdata.AssetDir, AssetInfo: testdata.AssetInfo}}
})
dir := "views"