Create seperate BeakCLI target

Package.swift

@@ -18,19 +18,27 @@ let package = Package(
         .target(
             name: "Beak",
             dependencies: [
-              "BeakCore",
+                "BeakCLI",
+            ]),
+        .target(
+            name: "BeakCLI",
+            dependencies: [
+                "BeakCore",
+                "SwiftCLI",
             ]),
         .target(
             name: "BeakCore",
             dependencies: [
-              "SourceKittenFramework",
-              "PathKit",
-              "SwiftCLI",
+                "SourceKittenFramework",
+                "PathKit",
+                "SwiftCLI",
             ]),
-        .testTarget(name: "BeakTests", dependencies: [
-          "BeakCore",
-          "Spectre",
-          "PathKit",
-        ])
+        .testTarget(
+            name: "BeakTests", 
+            dependencies: [
+                "BeakCore",
+                "Spectre",
+                "PathKit",
+            ])
     ]
 )

Sources/Beak/main.swift

@@ -1,7 +1,7 @@
-import BeakCore
 import Foundation
+import BeakCLI
+import BeakCore
 
 let options = BeakOptions()
-let beak = Beak(options: options)
-let result = beak.execute()
-exit(result)
+let beak = BeakCLI(options: options)
+beak.execute()

Sources/BeakCore/Beak.swift → Sources/BeakCLI/BeakCLI.swift

@@ -1,18 +1,8 @@
-import PathKit
 import SwiftCLI
+import BeakCore
+import Foundation
 
-public struct BeakOptions {
-
-    public let cachePath: Path
-    public let packageName: String
-
-    public init(cachePath: Path = "~/.beak/builds", packageName: String = "BeakFile") {
-        self.cachePath = cachePath.normalize()
-        self.packageName = packageName
-    }
-}
-
-public class Beak {
+public class BeakCLI {
 
     public let version: String = "0.3.5"
     public let options: BeakOptions
@@ -21,7 +11,7 @@ public class Beak {
         self.options = options
     }
 
-    public func execute(arguments: [String]? = nil) -> Int32 {
+    public func execute(arguments: [String]? = nil) {
         let cli = CLI(name: "beak", version: version, description: "Beak can inspect and run functions in your swift scripts")
         cli.globalOptions.append(GlobalOptions.path)
         cli.commands = [
@@ -30,10 +20,13 @@ public class Beak {
             RunCommand(options: options),
             EditCommand(options: options)
         ]
+
+        let status: Int32
         if let arguments = arguments {
-            return cli.go(with: arguments)
+            status = cli.go(with: arguments)
         } else {
-            return cli.go()
+            status = cli.go()
         }
+        exit(status)
     }
 }

Sources/BeakCLI/BeakError.swift

@@ -0,0 +1,14 @@
+import BeakCore
+import SwiftCLI
+
+extension BeakError: ProcessError {
+
+    public var message: String? {
+        return "⚠️  \(description)"
+    }
+
+    public var exitStatus: Int32 {
+        return 1
+    }
+
+}

Sources/BeakCLI/BeakOptions.swift

@@ -0,0 +1,12 @@
+import PathKit
+
+public struct BeakOptions {
+
+    public let cachePath: Path
+    public let packageName: String
+
+    public init(cachePath: Path = "~/.beak/builds", packageName: String = "BeakFile") {
+        self.cachePath = cachePath.normalize()
+        self.packageName = packageName
+    }
+}

Sources/BeakCore/Commands/BeakCommand.swift → Sources/BeakCLI/Commands/BeakCommand.swift

@@ -1,5 +1,6 @@
 import PathKit
 import SwiftCLI
+import BeakCore
 
 struct GlobalOptions {
     static let path = Key<String>("-p", "--path", description: "The path to a swift file. Defaults to beak.swift")

Sources/BeakCore/Commands/EditCommand.swift → Sources/BeakCLI/Commands/EditCommand.swift

@@ -1,5 +1,6 @@
 import PathKit
 import SwiftCLI
+import BeakCore
 
 class EditCommand: BeakCommand {
 

Sources/BeakCore/Commands/FunctionCommand.swift → Sources/BeakCLI/Commands/FunctionCommand.swift

@@ -1,5 +1,6 @@
 import PathKit
 import SwiftCLI
+import BeakCore
 
 class FunctionCommand: BeakCommand {
 

Sources/BeakCore/Commands/ListCommand.swift → Sources/BeakCLI/Commands/ListCommand.swift

@@ -1,5 +1,6 @@
 import PathKit
 import SwiftCLI
+import BeakCore
 
 class ListCommand: BeakCommand {
 

Sources/BeakCore/Commands/RunCommand.swift → Sources/BeakCLI/Commands/RunCommand.swift

@@ -1,5 +1,6 @@
 import PathKit
 import SwiftCLI
+import BeakCore
 
 class RunCommand: BeakCommand {
 

Sources/BeakCore/BeakError.swift

@@ -1,7 +1,6 @@
 import SourceKittenFramework
-import SwiftCLI
 
-public enum BeakError: ProcessError, CustomStringConvertible {
+public enum BeakError: Error, CustomStringConvertible {
     case fileNotFound(String)
     case compileError(String)
     case invalidFunction(String)
@@ -20,12 +19,4 @@ public enum BeakError: ProcessError, CustomStringConvertible {
         }
     }
 
-    public var message: String? {
-        return "⚠️  \(description)"
-    }
-
-    public var exitStatus: Int32 {
-        return 1
-    }
-
 }

Sources/BeakCore/PackageManager.swift

@@ -7,9 +7,9 @@ public class PackageManager {
     public var name: String
     public var beakFile: BeakFile
 
-    var sourcesPath: Path { return path + "Sources" }
-    var packagePath: Path { return path + "Package.swift" }
-    var mainFilePath: Path { return sourcesPath + "\(name)/main.swift" }
+    public var sourcesPath: Path { return path + "Sources" }
+    public var packagePath: Path { return path + "Package.swift" }
+    public var mainFilePath: Path { return sourcesPath + "\(name)/main.swift" }
 
     public init(path: Path, name: String, beakFile: BeakFile) {
         self.path = path