func (d *MemoryDriver) Rename(from_path string, to_path string) bool {
if f, from_path_exists := d.Files[from_path]; from_path_exists {
if _, to_path_exists := d.Files[to_path]; !to_path_exists {
if _, to_path_parent_exists := d.Files[filepath.Dir(to_path)]; to_path_parent_exists {
if f.File.IsDir() {
delete(d.Files, from_path)
d.Files[to_path] = &MemoryFile{graval.NewDirItem(filepath.Base(to_path)), nil}
torename := make([]string, 0)
for p, _ := range d.Files {
if strings.HasPrefix(p, from_path+"/") {
torename = append(torename, p)
}
}
for _, p := range torename {
sf := d.Files[p]
delete(d.Files, p)
np := to_path + p[len(from_path):]
d.Files[np] = sf
}
} else {
delete(d.Files, from_path)
d.Files[to_path] = &MemoryFile{graval.NewFileItem(filepath.Base(to_path), f.File.Size(), f.File.ModTime()), f.Content}
}
return true
} else {
return false
}
} else {
return false
}
} else {
return false
}
}
// DirContents lists “directory” contents on S3
func (d *S3Driver) DirContents(path string) ([]os.FileInfo, bool) {
moreObjects := true
var objects []*s3.Object
var resp *s3.ListObjectsOutput
var err error
marker := ""
for moreObjects {
resp, err = d.s3DirContents(path, 1000, marker)
if err == nil {
for _, obj := range resp.Contents {
objects = append(objects, obj)
}
moreObjects = *resp.IsTruncated
if moreObjects {
last := objects[len(objects)-1]
marker = *last.Key
}
}
}
prefix := pathToS3PathPrefix(path)
var files []os.FileInfo
var dirs []string
for _, object := range objects {
p := *object.Key
p = strings.TrimPrefix(p, *prefix)
var fi os.FileInfo
if strings.Contains(p, "/") || p == "" {
parts := strings.Split(p, "/")
dirPart := parts[0]
if dirPart != d.WorkingDirectory && dirPart != "" && dirPart != "/" && !stringInSlice(dirPart, dirs) {
fi = graval.NewDirItem(dirPart)
files = append(files, fi)
dirs = append(dirs, dirPart)
}
} else {
fi = graval.NewFileItem(*object.Key, *object.Size, *object.LastModified)
files = append(files, fi)
}
}
return files, true
}
func (d *MemoryDriver) PutFile(path string, reader io.Reader) bool {
if _, path_exists := d.Files[path]; !path_exists {
if _, path_parent_exists := d.Files[filepath.Dir(path)]; path_parent_exists {
bytes, err := ioutil.ReadAll(reader)
if err != nil {
return false
}
d.Files[path] = &MemoryFile{graval.NewFileItem(filepath.Base(path), int64(len(bytes)), time.Now().UTC()), bytes}
return true
} else {
return false
}
} else {
return false
}
}