fix: fixed sonya not working properly with stdin #1

shell now calls standard system from stdlib.h from c
works on macOS, needed to test on linux
regex strings in VarRegex were refactored into RegexBuilder
all tests passed.

Sources/sonya/sonya.swift

@@ -1,3 +1,4 @@
+import Foundation
 import sonyalib
 
 @main
@@ -12,18 +13,25 @@ struct sonya {
             break
         case .noSonyafile:
             print("sonya: no sonyafile found in current directory")
+            exit(1)
         case .isEmpty:
             print("sonya: sonyafile is empty")
+            exit(2)
         case .syntaxError:
             print("sonya: syntax error in sonyafile")
+            exit(3)
         case .noSuchRecipe:
             print("sonya: no recipe named '\(recipe)'")
+            exit(4)
         case .noSuchDependency:
             print("sonya: unknown dependency")
+            exit(5)
         case .shellReturnedError:
             print("sonya: command failed")
+            exit(6)
         case .noSuchVariable:
             print("sonya: undefined variable referenced in recipe '\(recipe)'")
+            exit(7)
         }
     }
 }

Sources/sonyalib/Package.swift

@@ -1,6 +1,4 @@
 // swift-tools-version: 6.2
-// The swift-tools-version declares the minimum version of Swift required to build this package.
-
 import PackageDescription
 
 let package = Package(
@@ -9,17 +7,20 @@ let package = Package(
         .macOS(.v13)
     ],
     products: [
-        // Products define the executables and libraries a package produces, making them visible to other packages.
         .library(
             name: "sonyalib",
             targets: ["sonyalib"]
         ),
     ],
     targets: [
-        // Targets are the basic building blocks of a package, defining a module or a test suite.
-        // Targets can depend on other targets in this package and products from dependencies.
         .target(
-            name: "sonyalib"
+            name: "ShellHelper",
+            path: "Sources/shellHelper",
+            publicHeadersPath: "."
+        ),
+        .target(
+            name: "sonyalib",
+            dependencies: ["ShellHelper"]
         ),
         .testTarget(
             name: "sonyalibTests",

Sources/sonyalib/Sources/shellHelper/shell_helper.c

@@ -0,0 +1,13 @@
+//
+//  shell_helper.c
+//  sonyalib
+//
+//  Created by hwacha on 4/22/26.
+//
+
+#include <stdlib.h>
+#include "shell_helper.h"
+
+int run_system(const char *cmd) {
+    return system(cmd);
+}

Sources/sonyalib/Sources/shellHelper/shell_helper.h

@@ -0,0 +1,8 @@
+//
+//  shell_helper.h
+//  sonyalib
+//
+//  Created by hwacha on 4/22/26.
+//
+
+int run_system(const char *cmd);

Sources/sonyalib/Sources/sonyalib/Shell.swift

@@ -6,6 +6,7 @@
 //
 
 import Foundation
+import ShellHelper
 
 func openSonyafile() -> String? {
     let fileManager = FileManager.default
@@ -21,19 +22,5 @@ func openSonyafile() -> String? {
 
 @discardableResult
 func shell(_ command: String) -> Int32 {
-    let process = Process()
-    let pipe = Pipe()
-    
-    process.standardOutput = pipe
-    process.standardError = pipe
-    process.executableURL = URL(fileURLWithPath: "/bin/bash")
-    process.arguments = ["-c", command]
-    
-    try? process.run()
-    process.waitUntilExit()
-    
-    let data = pipe.fileHandleForReading.readDataToEndOfFile()
-    FileHandle.standardOutput.write(data)
-    
-    return process.terminationStatus
+    return run_system(command)
 }

Sources/sonyalib/Sources/sonyalib/VarRegex.swift

@@ -7,9 +7,18 @@
 
 // TODO: args
 
-nonisolated(unsafe) let varRegex = #/\$\(([^\s\n]*)\)/#
+import RegexBuilder
 
-nonisolated(unsafe) let argRegex = #/\$(\d+)/#
+nonisolated(unsafe) let varRegex = Regex {
+    "$("
+    Capture(ZeroOrMore(CharacterClass(.whitespace, .newlineSequence).inverted))
+    ")"
+}
+
+nonisolated(unsafe) let argRegex = Regex {
+    "$"
+    OneOrMore(.digit)
+}
 
 func resolve(_ command: String, vars: [String: String]) -> String? {
     return resolveVars(command, vars: vars)