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|
package rice
import (
"os"
"path/filepath"
"sort"
"strings"
)
// Walk is like filepath.Walk()
// Visit http://golang.org/pkg/path/filepath/#Walk for more information
func (b *Box) Walk(path string, walkFn filepath.WalkFunc) error {
pathFile, err := b.Open(path)
if err != nil {
return err
}
defer pathFile.Close()
pathInfo, err := pathFile.Stat()
if err != nil {
return err
}
if b.IsAppended() || b.IsEmbedded() {
return b.walk(path, pathInfo, walkFn)
}
// We don't have any embedded or appended box so use live filesystem mode
return filepath.Walk(filepath.Join(b.absolutePath, path), func(path string, info os.FileInfo, err error) error {
// Strip out the box name from the returned paths
path = strings.TrimPrefix(path, b.absolutePath+string(os.PathSeparator))
return walkFn(path, info, err)
})
}
// walk recursively descends path.
// See walk() in $GOROOT/src/pkg/path/filepath/path.go
func (b *Box) walk(path string, info os.FileInfo, walkFn filepath.WalkFunc) error {
err := walkFn(path, info, nil)
if err != nil {
if info.IsDir() && err == filepath.SkipDir {
return nil
}
return err
}
if !info.IsDir() {
return nil
}
names, err := b.readDirNames(path)
if err != nil {
return walkFn(path, info, err)
}
for _, name := range names {
filename := filepath.ToSlash(filepath.Join(path, name))
fileObject, err := b.Open(filename)
if err != nil {
return err
}
defer fileObject.Close()
fileInfo, err := fileObject.Stat()
if err != nil {
if err := walkFn(filename, fileInfo, err); err != nil && err != filepath.SkipDir {
return err
}
} else {
err = b.walk(filename, fileInfo, walkFn)
if err != nil {
if !fileInfo.IsDir() || err != filepath.SkipDir {
return err
}
}
}
}
return nil
}
// readDirNames reads the directory named by path and returns a sorted list of directory entries.
// See readDirNames() in $GOROOT/pkg/path/filepath/path.go
func (b *Box) readDirNames(path string) ([]string, error) {
f, err := b.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
stat, err := f.Stat()
if err != nil {
return nil, err
}
if !stat.IsDir() {
return nil, nil
}
infos, err := f.Readdir(0)
if err != nil {
return nil, err
}
var names []string
for _, info := range infos {
names = append(names, info.Name())
}
sort.Strings(names)
return names, nil
}
|
