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Co-authored-by: Aditya Ramani <a_ramani@apple.com>
Co-authored-by: Agam Dua <agam_dua@apple.com>
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Sources/ContainerBuild/BuildAPI+Extensions.swift

@@ -0,0 +1,154 @@
+//===----------------------------------------------------------------------===//
+// Copyright © 2025 Apple Inc. and the container project authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//===----------------------------------------------------------------------===//
+
+import Containerization
+import ContainerizationOCI
+
+public typealias IO = Com_Apple_Container_Build_V1_IO
+public typealias InfoRequest = Com_Apple_Container_Build_V1_InfoRequest
+public typealias InfoResponse = Com_Apple_Container_Build_V1_InfoResponse
+public typealias ClientStream = Com_Apple_Container_Build_V1_ClientStream
+public typealias ServerStream = Com_Apple_Container_Build_V1_ServerStream
+public typealias ImageTransfer = Com_Apple_Container_Build_V1_ImageTransfer
+public typealias BuildTransfer = Com_Apple_Container_Build_V1_BuildTransfer
+public typealias BuilderClient = Com_Apple_Container_Build_V1_BuilderNIOClient
+public typealias BuilderClientAsync = Com_Apple_Container_Build_V1_BuilderAsyncClient
+public typealias BuilderClientProtocol = Com_Apple_Container_Build_V1_BuilderClientProtocol
+public typealias BuilderClientAsyncProtocol = Com_Apple_Container_Build_V1_BuilderAsyncClient
+
+extension BuildTransfer {
+    func stage() -> String? {
+        let stage = self.metadata["stage"]
+        return stage == "" ? nil : stage
+    }
+
+    func method() -> String? {
+        let method = self.metadata["method"]
+        return method == "" ? nil : method
+    }
+
+    func includePatterns() -> [String]? {
+        guard let includePatternsString = self.metadata["include-patterns"] else {
+            return nil
+        }
+        return includePatternsString == "" ? nil : includePatternsString.components(separatedBy: ",")
+    }
+
+    func followPaths() -> [String]? {
+        guard let followPathString = self.metadata["followpaths"] else {
+            return nil
+        }
+        return followPathString == "" ? nil : followPathString.components(separatedBy: ",")
+    }
+
+    func mode() -> String? {
+        self.metadata["mode"]
+    }
+
+    func size() -> Int? {
+        guard let sizeStr = self.metadata["size"] else {
+            return nil
+        }
+        return sizeStr == "" ? nil : Int(sizeStr)
+    }
+
+    func offset() -> UInt64? {
+        guard let offsetStr = self.metadata["offset"] else {
+            return nil
+        }
+        return offsetStr == "" ? nil : UInt64(offsetStr)
+    }
+
+    func len() -> Int? {
+        guard let lenStr = self.metadata["length"] else {
+            return nil
+        }
+        return lenStr == "" ? nil : Int(lenStr)
+    }
+}
+
+extension ImageTransfer {
+    func stage() -> String? {
+        self.metadata["stage"]
+    }
+
+    func method() -> String? {
+        self.metadata["method"]
+    }
+
+    func ref() -> String? {
+        self.metadata["ref"]
+    }
+
+    func platform() throws -> Platform? {
+        let metadata = self.metadata
+        guard let platform = metadata["platform"] else {
+            return nil
+        }
+        return try Platform(from: platform)
+    }
+
+    func mode() -> String? {
+        self.metadata["mode"]
+    }
+
+    func size() -> Int? {
+        let metadata = self.metadata
+        guard let sizeStr = metadata["size"] else {
+            return nil
+        }
+        return Int(sizeStr)
+    }
+
+    func len() -> Int? {
+        let metadata = self.metadata
+        guard let lenStr = metadata["length"] else {
+            return nil
+        }
+        return Int(lenStr)
+    }
+
+    func offset() -> UInt64? {
+        let metadata = self.metadata
+        guard let offsetStr = metadata["offset"] else {
+            return nil
+        }
+        return UInt64(offsetStr)
+    }
+}
+
+extension ServerStream {
+    func getImageTransfer() -> ImageTransfer? {
+        if case .imageTransfer(let v) = self.packetType {
+            return v
+        }
+        return nil
+    }
+
+    func getBuildTransfer() -> BuildTransfer? {
+        if case .buildTransfer(let v) = self.packetType {
+            return v
+        }
+        return nil
+    }
+
+    func getIO() -> IO? {
+        if case .io(let v) = self.packetType {
+            return v
+        }
+        return nil
+    }
+}