Merge pull request #649 from allevato/version-number

Some minor frontend tweaks.

Author: allevato

Sources/swift-format/PrintVersion.swift

@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+//===----------------------------------------------------------------------===//
+
+func printVersionInformation() {
+  // TODO: Automate updates to this somehow.
+  print("main")
+}

Sources/swift-format/main.swift renamed to Sources/swift-format/SwiftFormatCommand.swift

@@ -14,6 +14,7 @@ import ArgumentParser
 
 /// Collects the command line options that were passed to `swift-format` and dispatches to the
 /// appropriate subcommand.
+@main
 struct SwiftFormatCommand: ParsableCommand {
   static var configuration = CommandConfiguration(
     commandName: "swift-format",
@@ -29,5 +30,3 @@ struct SwiftFormatCommand: ParsableCommand {
   @OptionGroup()
   var versionOptions: VersionOptions
 }
-
-SwiftFormatCommand.main()

Sources/swift-format/VersionOptions.swift

@@ -19,8 +19,7 @@ struct VersionOptions: ParsableArguments {
 
   func validate() throws {
     if version {
-      // TODO: Automate updates to this somehow.
-      print("508.0.0")
+      printVersionInformation()
       throw ExitCode.success
     }
   }