feat: add optional to content for piece message

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "dragonfly-api"
-version = "2.0.48"
+version = "2.0.49"
 authors = ["Gaius <[email protected]>"]
 edition = "2021"
 license = "Apache-2.0"

pkg/apis/common/v2/common.proto

@@ -358,15 +358,15 @@ message Piece {
   // Piece number.
   int32 number = 1 [(validate.rules).int32.gte = 0];
   // Parent peer id.
-  optional string parent_id = 2 [(validate.rules).string = {min_len: 1, ignore_empty: true}];
+  optional string parent_id = 2 [(validate.rules).string = {min_len: 1}];
   // Piece offset.
   uint64 offset = 3 [(validate.rules).uint64.gte = 0];
   // Piece length.
   uint64 length = 4 [(validate.rules).uint64.gt = 0];
   // Digest of the piece data, for example md5:xxx or sha256:yyy.
   string digest = 5 [(validate.rules).string = {pattern: "^(md5:[a-fA-F0-9]{32}|sha1:[a-fA-F0-9]{40}|sha256:[a-fA-F0-9]{64}|sha512:[a-fA-F0-9]{128})$", ignore_empty: true}];
   // Piece content.
-  bytes content = 6 [(validate.rules).bytes = {min_len: 1, ignore_empty: true}];
+  optional bytes content = 6 [(validate.rules).bytes = {min_len: 1}];
   // Traffic type.
   optional TrafficType traffic_type = 7;
   // Downloading piece costs time.

proto/common.proto

@@ -360,7 +360,7 @@ message Piece {
   // Digest of the piece data, for example md5:xxx or sha256:yyy.
   string digest = 5;
   // Piece content.
-  bytes content = 6;
+  optional bytes content = 6;
   // Traffic type.
   optional TrafficType traffic_type = 7;
   // Downloading piece costs time.

src/common.v2.rs

@@ -395,8 +395,8 @@ pub struct Piece {
     #[prost(string, tag = "5")]
     pub digest: ::prost::alloc::string::String,
     /// Piece content.
-    #[prost(bytes = "vec", tag = "6")]
-    pub content: ::prost::alloc::vec::Vec<u8>,
+    #[prost(bytes = "vec", optional, tag = "6")]
+    pub content: ::core::option::Option<::prost::alloc::vec::Vec<u8>>,
     /// Traffic type.
     #[prost(enumeration = "TrafficType", optional, tag = "7")]
     pub traffic_type: ::core::option::Option<i32>,