mirror of
https://github.com/octoleo/restic.git
synced 2024-11-25 14:17:42 +00:00
Optimize repository layout
Use subdirectoriers for Data and Tree objects, e.g. store blob `aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f` at ``` ac/c0/aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f ``` Issue #58
This commit is contained in:
Alexander Neumann
parent
bbaba349b2
commit
6d56d7d4c6
@ -149,20 +149,33 @@ func (b *Local) tempFile() (*os.File, error) {
|
||||
|
||||
// Rename temp file to final name according to type and ID.
|
||||
func (b *Local) renameFile(file *os.File, t Type, id ID) error {
|
||||
filename := filepath.Join(b.dir(t), id.String())
|
||||
return os.Rename(file.Name(), filename)
|
||||
newname := b.filename(t, id)
|
||||
oldname := file.Name()
|
||||
|
||||
if t == Data || t == Tree {
|
||||
// create directories if necessary, ignore errors
|
||||
os.MkdirAll(filepath.Dir(newname), dirMode)
|
||||
}
|
||||
|
||||
return os.Rename(oldname, newname)
|
||||
}
|
||||
|
||||
// Construct directory for given Type.
|
||||
func (b *Local) dir(t Type) string {
|
||||
func (b *Local) dirname(t Type, id ID) string {
|
||||
var n string
|
||||
switch t {
|
||||
case Data:
|
||||
n = dataPath
|
||||
if id != nil {
|
||||
n = filepath.Join(dataPath, fmt.Sprintf("%02x", id[0]), fmt.Sprintf("%02x", id[1]))
|
||||
}
|
||||
case Snapshot:
|
||||
n = snapshotPath
|
||||
case Tree:
|
||||
n = treePath
|
||||
if id != nil {
|
||||
n = filepath.Join(treePath, fmt.Sprintf("%02x", id[0]), fmt.Sprintf("%02x", id[1]))
|
||||
}
|
||||
case Map:
|
||||
n = mapPath
|
||||
case Lock:
|
||||
@ -217,7 +230,7 @@ func (b *Local) Create(t Type, data []byte) (ID, error) {
|
||||
|
||||
// Construct path for given Type and ID.
|
||||
func (b *Local) filename(t Type, id ID) string {
|
||||
return filepath.Join(b.dir(t), id.String())
|
||||
return filepath.Join(b.dirname(t, id), id.String())
|
||||
}
|
||||
|
||||
// Get returns the content stored under the given ID. If the data doesn't match
|
||||
@ -270,7 +283,12 @@ func (b *Local) Remove(t Type, id ID) error {
|
||||
// List lists all objects of a given type.
|
||||
func (b *Local) List(t Type) (IDs, error) {
|
||||
// TODO: use os.Open() and d.Readdirnames() instead of Glob()
|
||||
pattern := filepath.Join(b.dir(t), "*")
|
||||
var pattern string
|
||||
if t == Data || t == Tree {
|
||||
pattern = filepath.Join(b.dirname(t, nil), "*", "*", "*")
|
||||
} else {
|
||||
pattern = filepath.Join(b.dirname(t, nil), "*")
|
||||
}
|
||||
|
||||
matches, err := filepath.Glob(pattern)
|
||||
if err != nil {
|
||||
|
||||
121
backend/sftp.go
121
backend/sftp.go
@ -155,13 +155,9 @@ func CreateSFTP(dir string, program string, args ...string) (*SFTP, error) {
|
||||
|
||||
// create paths for data, refs and temp blobs
|
||||
for _, d := range dirs {
|
||||
// TODO: implement client.MkdirAll() and set mode to dirMode
|
||||
_, err = sftp.c.Lstat(d)
|
||||
err = sftp.mkdirAll(d, dirMode)
|
||||
if err != nil {
|
||||
err = sftp.c.Mkdir(d)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
@ -225,21 +221,69 @@ func (r *SFTP) tempFile() (string, *sftp.File, error) {
|
||||
return name, f, nil
|
||||
}
|
||||
|
||||
func (r *SFTP) mkdirAll(dir string, mode os.FileMode) error {
|
||||
// check if directory already exists
|
||||
fi, err := r.c.Lstat(dir)
|
||||
if err == nil {
|
||||
if fi.IsDir() {
|
||||
return nil
|
||||
}
|
||||
|
||||
return fmt.Errorf("mkdirAll(%s): entry exists but is not a directory", dir)
|
||||
}
|
||||
|
||||
// create parent directories
|
||||
errMkdirAll := r.mkdirAll(filepath.Dir(dir), dirMode)
|
||||
|
||||
// create directory
|
||||
errMkdir := r.c.Mkdir(dir)
|
||||
|
||||
// test if directory was created successfully
|
||||
fi, err = r.c.Lstat(dir)
|
||||
if err != nil {
|
||||
// return previous errors
|
||||
return fmt.Errorf("mkdirAll(%s): unable to create directories: %v, %v", errMkdirAll, errMkdir)
|
||||
}
|
||||
|
||||
if !fi.IsDir() {
|
||||
return fmt.Errorf("mkdirAll(%s): entry exists but is not a directory", dir)
|
||||
}
|
||||
|
||||
// set mode
|
||||
return r.c.Chmod(dir, mode)
|
||||
}
|
||||
|
||||
// Rename temp file to final name according to type and ID.
|
||||
func (r *SFTP) renameFile(filename string, t Type, id ID) error {
|
||||
return r.c.Rename(filename, filepath.Join(r.dir(t), id.String()))
|
||||
func (r *SFTP) renameFile(oldname string, t Type, id ID) error {
|
||||
newname := r.filename(t, id)
|
||||
|
||||
// create directories if necessary
|
||||
if t == Data || t == Tree {
|
||||
err := r.mkdirAll(filepath.Dir(newname), dirMode)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return r.c.Rename(oldname, newname)
|
||||
}
|
||||
|
||||
// Construct directory for given Type.
|
||||
func (r *SFTP) dir(t Type) string {
|
||||
func (r *SFTP) dirname(t Type, id ID) string {
|
||||
var n string
|
||||
switch t {
|
||||
case Data:
|
||||
n = dataPath
|
||||
if id != nil {
|
||||
n = filepath.Join(dataPath, fmt.Sprintf("%02x", id[0]), fmt.Sprintf("%02x", id[1]))
|
||||
}
|
||||
case Snapshot:
|
||||
n = snapshotPath
|
||||
case Tree:
|
||||
n = treePath
|
||||
if id != nil {
|
||||
n = filepath.Join(treePath, fmt.Sprintf("%02x", id[0]), fmt.Sprintf("%02x", id[1]))
|
||||
}
|
||||
case Map:
|
||||
n = mapPath
|
||||
case Lock:
|
||||
@ -257,7 +301,12 @@ func (r *SFTP) Create(t Type, data []byte) (ID, error) {
|
||||
|
||||
// check if blob is already present in backend
|
||||
id := IDFromData(data)
|
||||
if ok, _ := r.Test(t, id); ok {
|
||||
res, err := r.Test(t, id)
|
||||
if err != nil {
|
||||
return nil, arrar.Annotate(err, "test for presence")
|
||||
}
|
||||
|
||||
if res {
|
||||
return id, ErrAlreadyPresent
|
||||
}
|
||||
|
||||
@ -289,7 +338,7 @@ func (r *SFTP) Create(t Type, data []byte) (ID, error) {
|
||||
|
||||
// Construct path for given Type and ID.
|
||||
func (r *SFTP) filename(t Type, id ID) string {
|
||||
return filepath.Join(r.dir(t), id.String())
|
||||
return filepath.Join(r.dirname(t, id), id.String())
|
||||
}
|
||||
|
||||
// Get returns the content stored under the given ID. If the data doesn't match
|
||||
@ -325,10 +374,15 @@ func (r *SFTP) Test(t Type, id ID) (bool, error) {
|
||||
}
|
||||
}()
|
||||
|
||||
if err == nil {
|
||||
return true, nil
|
||||
if err != nil {
|
||||
if _, ok := err.(*sftp.StatusError); ok {
|
||||
return false, nil
|
||||
}
|
||||
|
||||
return false, err
|
||||
}
|
||||
return false, err
|
||||
|
||||
return true, nil
|
||||
}
|
||||
|
||||
// Remove removes the content stored at ID.
|
||||
@ -338,9 +392,42 @@ func (r *SFTP) Remove(t Type, id ID) error {
|
||||
|
||||
// List lists all objects of a given type.
|
||||
func (r *SFTP) List(t Type) (IDs, error) {
|
||||
list, err := r.c.ReadDir(r.dir(t))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
list := []os.FileInfo{}
|
||||
var err error
|
||||
|
||||
if t == Data || t == Tree {
|
||||
// read first level
|
||||
basedir := r.dirname(t, nil)
|
||||
|
||||
list1, err := r.c.ReadDir(basedir)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
for _, dir1 := range list1 {
|
||||
// read second level
|
||||
list2, err := r.c.ReadDir(filepath.Join(basedir, dir1.Name()))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// read files
|
||||
for _, dir2 := range list2 {
|
||||
entries, err := r.c.ReadDir(filepath.Join(basedir, dir1.Name(), dir2.Name()))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
for _, entry := range entries {
|
||||
list = append(list, entry)
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
list, err = r.c.ReadDir(r.dirname(t, nil))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
ids := make(IDs, 0, len(list))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user