Add GitHub update checker and installer

2026-03-30 23:02:42 +08:00
parent 6b790c7a80
commit 63d1d0fe3f
15 changed files with 1663 additions and 2 deletions
@@ -0,0 +1,45 @@
+#if os(macOS)
+
+    import Foundation
+
+    public enum PKGDownloader {
+        public static func download(
+            from url: String,
+            expectedSize: Int64,
+            progress: @escaping (Double) -> Void
+        ) async throws -> URL {
+            let updatesDir = FilePath.cacheDirectory.appendingPathComponent("updates", isDirectory: true)
+            try FileManager.default.createDirectory(at: updatesDir, withIntermediateDirectories: true)
+
+            let filename = URL(string: url)!.lastPathComponent
+            let destination = updatesDir.appendingPathComponent(filename)
+
+            if let attrs = try? FileManager.default.attributesOfItem(atPath: destination.path),
+               let fileSize = attrs[.size] as? Int64,
+               expectedSize > 0, fileSize == expectedSize
+            {
+                progress(1.0)
+                return destination
+            }
+
+            // Clean old PKG files
+            if let contents = try? FileManager.default.contentsOfDirectory(at: updatesDir, includingPropertiesForKeys: nil) {
+                for file in contents where file.pathExtension == "pkg" && file.lastPathComponent != filename {
+                    try? FileManager.default.removeItem(at: file)
+                }
+            }
+
+            try? FileManager.default.removeItem(at: destination)
+            var lastReported = 0.0
+            try await HTTPClient.writeToAsync(url, path: destination.path) { bytesWritten, totalBytes in
+                guard totalBytes > 0 else { return }
+                let current = Double(bytesWritten) / Double(totalBytes)
+                guard current - lastReported >= 0.01 || current >= 1.0 else { return }
+                lastReported = current
+                progress(current)
+            }
+            return destination
+        }
+    }
+
+#endif