Merge pull request #254 from allevato/swift-5.4-updates

Update to support Swift 5.4.

Author: allevato

Package.swift

@@ -139,8 +139,8 @@ let package = Package(
 if ProcessInfo.processInfo.environment["SWIFTCI_USE_LOCAL_DEPS"] == nil {
   // Building standalone.
   package.dependencies += [
-    .package(url: "https://github.com/apple/swift-syntax", .branch("main")),
-    .package(url: "https://github.com/apple/swift-argument-parser.git", .branch("main")),
+    .package(url: "https://github.com/apple/swift-syntax", .upToNextMinor(from: "0.50400.0")),
+    .package(url: "https://github.com/apple/swift-argument-parser.git", .upToNextMinor(from: "0.4.3")),
   ]
 } else {
   package.dependencies += [

README.md

@@ -26,15 +26,16 @@ is also expressed in the `SwiftSyntax` dependency in
 | Xcode Release | Swift Version                           | `swift-format` Branch |
 |:-------------:|:---------------------------------------:|:----------------------|
 | –             | Swift at `main`                         | `main`                |
+| Xcode 12.5    | Swift 5.4                               | `swift-5.4-branch`    |
 | Xcode 12.0    | Swift 5.3                               | `swift-5.3-branch`    |
 | Xcode 11.4    | Swift 5.2                               | `swift-5.2-branch`    |
 | Xcode 11.0    | Swift 5.1                               | `swift-5.1-branch`    |
 
-For example, if you are using Xcode 12.0 (Swift 5.3), you can check out and
+For example, if you are using Xcode 12.5 (Swift 5.4), you can check out and
 build `swift-format` using the following commands:
 
 ```
-git clone -b swift-5.3-branch https://github.com/apple/swift-format.git
+git clone -b swift-5.4-branch https://github.com/apple/swift-format.git
 cd swift-format
 swift build
 ```

Sources/swift-format/VersionOptions.swift

@@ -20,7 +20,7 @@ struct VersionOptions: ParsableArguments {
   func validate() throws {
     if version {
       // TODO: Automate updates to this somehow.
-      print("0.50200.1")
+      print("0.50400.0")
       throw ExitCode.success
     }
   }