Implemented the TerminalService service for the library target

2025-02-08 10:22:52 +01:00
parent 33ae67fc58
commit 07e8012faf
6 changed files with 243 additions and 0 deletions
@@ -0,0 +1,60 @@
+import Foundation
+
+public struct TerminalService {
+    
+    // MARK: Initialisers
+    
+    public init() {}
+    
+}
+
+// MARK: - TerminalServicing
+
+extension TerminalService: TerminalServicing {
+    
+    // MARK: Functions
+    
+    public func run(_ executableURL: URL, arguments: [String]) async throws (TerminalServiceError) -> String {
+        let process = Process()
+        let standardError = Pipe()
+        let standardOutput = Pipe()
+
+        process.executableURL = executableURL
+        process.arguments = arguments
+        process.standardError = standardError
+        process.standardOutput = standardOutput
+        
+        async let streamOutput = standardOutput.availableData.append()
+        async let streamError = standardError.availableData.append()
+        
+        do {
+            try process.run()
+            
+            let dataOutput = await streamOutput
+            let dataError = await streamError
+            
+            guard dataError.isEmpty else {
+                guard let errorOutput = String(data: dataError, encoding: .utf8) else {
+                    throw TerminalServiceError.unexpected
+                }
+                
+                throw TerminalServiceError.output(errorOutput)
+            }
+            
+            guard let output = String(data: dataOutput, encoding: .utf8) else {
+                throw TerminalServiceError.unexpected
+            }
+            
+            return await withCheckedContinuation { continuation in
+                process.terminationHandler = { _ in
+                    continuation.resume(returning: output)
+                }
+            }
+        } catch let error as TerminalServiceError {
+            throw error
+        } catch {
+            throw .captured(error.localizedDescription)
+        }
+    }
+    
+}