update datastore interface

Author: aschmahmann

flatfs.go

@@ -388,6 +388,16 @@ func (fs *Datastore) Put(key datastore.Key, value []byte) error {
 	return err
 }
 
+func (fs *Datastore) Sync(prefix datastore.Key) error {
+	fs.shutdownLock.RLock()
+	defer fs.shutdownLock.RUnlock()
+	if fs.shutdown {
+		return ErrClosed
+	}
+
+	return nil
+}
+
 func (fs *Datastore) doOp(oper *op) error {
 	switch oper.typ {
 	case opPut:

go.mod

@@ -1,7 +1,7 @@
 module github.com/ipfs/go-ds-flatfs
 
 require (
-	github.com/ipfs/go-datastore v0.1.1
+	github.com/ipfs/go-datastore v0.2.1-0.20191203002116-8ddf6ada75cf
 	github.com/ipfs/go-log v0.0.1
 	github.com/jbenet/goprocess v0.0.0-20160826012719-b497e2f366b8
 )

go.sum

@@ -10,6 +10,8 @@ github.com/ipfs/go-datastore v0.1.0 h1:TOxI04l8CmO4zGtesENhzm4PwkFwJXY3rKiYaaMf9
 github.com/ipfs/go-datastore v0.1.0/go.mod h1:d4KVXhMt913cLBEI/PXAy6ko+W7e9AhyAKBGh803qeE=
 github.com/ipfs/go-datastore v0.1.1 h1:F4k0TkTAZGLFzBOrVKDAvch6JZtuN4NHkfdcEZL50aI=
 github.com/ipfs/go-datastore v0.1.1/go.mod h1:w38XXW9kVFNp57Zj5knbKWM2T+KOZCGDRVNdgPHtbHw=
+github.com/ipfs/go-datastore v0.1.2-0.20191127175949-52c36621e1d3/go.mod h1:w38XXW9kVFNp57Zj5knbKWM2T+KOZCGDRVNdgPHtbHw=
+github.com/ipfs/go-datastore v0.2.1-0.20191203002116-8ddf6ada75cf/go.mod h1:w38XXW9kVFNp57Zj5knbKWM2T+KOZCGDRVNdgPHtbHw=
 github.com/ipfs/go-ipfs-delay v0.0.0-20181109222059-70721b86a9a8/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=
 github.com/ipfs/go-log v0.0.1 h1:9XTUN/rW64BCG1YhPK9Hoy3q8nr4gOmHHBpgFdfw6Lc=
 github.com/ipfs/go-log v0.0.1/go.mod h1:kL1d2/hzSpI0thNYjiKfjanbVNU+IIGA/WnNESY9leM=