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// Copyright 2021 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 (
"context"
"io"
"net/url"
"os"
"path/filepath"
"code.gitea.io/gitea/modules/util"
)
// FilesystemClient is used to read LFS data from a filesystem path
type FilesystemClient struct {
lfsdir string
}
func newFilesystemClient(endpoint *url.URL) *FilesystemClient {
path, _ := util.FileURLToPath(endpoint)
lfsdir := filepath.Join(path, "lfs", "objects")
client := &FilesystemClient{lfsdir}
return client
}
func (c *FilesystemClient) objectPath(oid string) string {
return filepath.Join(c.lfsdir, oid[0:2], oid[2:4], oid)
}
// Download reads the specific LFS object from the target repository
func (c *FilesystemClient) Download(ctx context.Context, oid string, size int64) (io.ReadCloser, error) {
objectPath := c.objectPath(oid)
if _, err := os.Stat(objectPath); os.IsNotExist(err) {
return nil, err
}
file, err := os.Open(objectPath)
if err != nil {
return nil, err
}
return file, nil
}
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