mirror of
https://github.com/go-gitea/gitea
synced 2024-11-17 23:54:25 +00:00
7a5465fc56
* LFS support to be stored on minio * Fix test * Fix lint * Fix lint * Fix check * Fix test * Update documents and add migration for LFS * Fix some bugs
100 lines
2.7 KiB
Go
100 lines
2.7 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package lfs
|
|
|
|
import (
|
|
"crypto/sha256"
|
|
"encoding/hex"
|
|
"errors"
|
|
"io"
|
|
"os"
|
|
|
|
"code.gitea.io/gitea/models"
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/storage"
|
|
)
|
|
|
|
var (
|
|
errHashMismatch = errors.New("Content hash does not match OID")
|
|
errSizeMismatch = errors.New("Content size does not match")
|
|
)
|
|
|
|
// ContentStore provides a simple file system based storage.
|
|
type ContentStore struct {
|
|
storage.ObjectStorage
|
|
}
|
|
|
|
// Get takes a Meta object and retrieves the content from the store, returning
|
|
// it as an io.Reader. If fromByte > 0, the reader starts from that byte
|
|
func (s *ContentStore) Get(meta *models.LFSMetaObject, fromByte int64) (io.ReadCloser, error) {
|
|
f, err := s.Open(meta.RelativePath())
|
|
if err != nil {
|
|
log.Error("Whilst trying to read LFS OID[%s]: Unable to open Error: %v", meta.Oid, err)
|
|
return nil, err
|
|
}
|
|
if fromByte > 0 {
|
|
_, err = f.Seek(fromByte, os.SEEK_CUR)
|
|
if err != nil {
|
|
log.Error("Whilst trying to read LFS OID[%s]: Unable to seek to %d Error: %v", meta.Oid, fromByte, err)
|
|
}
|
|
}
|
|
return f, err
|
|
}
|
|
|
|
// Put takes a Meta object and an io.Reader and writes the content to the store.
|
|
func (s *ContentStore) Put(meta *models.LFSMetaObject, r io.Reader) error {
|
|
hash := sha256.New()
|
|
rd := io.TeeReader(r, hash)
|
|
p := meta.RelativePath()
|
|
written, err := s.Save(p, rd)
|
|
if err != nil {
|
|
log.Error("Whilst putting LFS OID[%s]: Failed to copy to tmpPath: %s Error: %v", meta.Oid, p, err)
|
|
return err
|
|
}
|
|
|
|
if written != meta.Size {
|
|
if err := s.Delete(p); err != nil {
|
|
log.Error("Cleaning the LFS OID[%s] failed: %v", meta.Oid, err)
|
|
}
|
|
return errSizeMismatch
|
|
}
|
|
|
|
shaStr := hex.EncodeToString(hash.Sum(nil))
|
|
if shaStr != meta.Oid {
|
|
if err := s.Delete(p); err != nil {
|
|
log.Error("Cleaning the LFS OID[%s] failed: %v", meta.Oid, err)
|
|
}
|
|
return errHashMismatch
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Exists returns true if the object exists in the content store.
|
|
func (s *ContentStore) Exists(meta *models.LFSMetaObject) (bool, error) {
|
|
_, err := s.ObjectStorage.Stat(meta.RelativePath())
|
|
if err != nil {
|
|
if os.IsNotExist(err) {
|
|
return false, nil
|
|
}
|
|
return false, err
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
// Verify returns true if the object exists in the content store and size is correct.
|
|
func (s *ContentStore) Verify(meta *models.LFSMetaObject) (bool, error) {
|
|
p := meta.RelativePath()
|
|
fi, err := s.ObjectStorage.Stat(p)
|
|
if os.IsNotExist(err) || (err == nil && fi.Size() != meta.Size) {
|
|
return false, nil
|
|
} else if err != nil {
|
|
log.Error("Unable stat file: %s for LFS OID[%s] Error: %v", p, meta.Oid, err)
|
|
return false, err
|
|
}
|
|
|
|
return true, nil
|
|
}
|