1 files changed, 50 insertions, 0 deletions
diff --git a/modules/lfs/filesystem_client.go b/modules/lfs/filesystem_client.go
new file mode 100644
index 0000000000..3a51564a82
--- /dev/null
+++ b/modules/lfs/filesystem_client.go
@@ -0,0 +1,50 @@
+// 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
+}