Sync with main package

Includes:
 - Updated API to match the new name of the CLI tool;
 - Dropped support for Swift 5.6;
 - Updated README.

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 5.6
+// swift-tools-version: 5.7
 
 import PackageDescription
 
@@ -15,14 +15,14 @@ let package = Package(
     ],
     targets: [
         .binaryTarget(
-            name: "confidential",
-            url: "https://github.com/securevale/swift-confidential/releases/download/0.1.0/ConfidentialBinary-macos.artifactbundle.zip",
-            checksum: "fd43375b35d57a6c36476b70f968b3cebf2f9fea28d9444addc21c9728ba935c"
+            name: "swift-confidential",
+            url: "https://github.com/securevale/swift-confidential/releases/download/0.2.0/SwiftConfidentialBinary-macos.artifactbundle.zip",
+            checksum: "303ce7c03eb27656cba908c48974dc656925c6dd605d2774b822ca6254bdfe91"
         ),
         .plugin(
             name: "Confidential",
             capability: .buildTool(),
-            dependencies: ["confidential"]
+            dependencies: ["swift-confidential"]
         )
     ],
     swiftLanguageVersions: [.v5]

Plugins/Confidential/CLI/ConfidentialTool+ObfuscateCommand.swift → Plugins/Confidential/CLI/SwiftConfidentialTool+ObfuscateCommand.swift

@@ -1,6 +1,6 @@
 import PackagePlugin
 
-extension ConfidentialTool {
+extension SwiftConfidentialTool {
 
     struct ObfuscateCommand: Equatable {
 

Plugins/Confidential/CLI/ConfidentialTool.swift → Plugins/Confidential/CLI/SwiftConfidentialTool.swift

@@ -1,8 +1,8 @@
 import PackagePlugin
 
-enum ConfidentialTool {
+enum SwiftConfidentialTool {
 
     static func instance(for context: Context) throws -> ExecutableTool {
-        try context.tool(named: "confidential")
+        try context.tool(named: "swift-confidential")
     }
 }

Plugins/Confidential/plugin.swift

@@ -80,10 +80,10 @@ extension Confidential: XcodeBuildToolPlugin {
 private extension Confidential {
 
     func createBuildCommands(context: Context, configurationFile: Path) throws -> [Command] {
-        let confidentialTool = try ConfidentialTool.instance(for: context)
+        let confidentialTool = try SwiftConfidentialTool.instance(for: context)
         let outputDir = context.pluginWorkDirectory.appending(C.GeneratedSources.directoryName)
         let outputFile = outputDir.appending(C.GeneratedSources.outputFileName)
-        let obfuscateCommand = ConfidentialTool.ObfuscateCommand(
+        let obfuscateCommand = SwiftConfidentialTool.ObfuscateCommand(
             configuration: configurationFile,
             output: outputFile
         )

README.md

@@ -1,28 +1,32 @@
 # Swift Confidential Plugin
 
 [![CI](https://github.com/securevale/swift-confidential-plugin/actions/workflows/ci.yml/badge.svg)](https://github.com/securevale/swift-confidential-plugin/actions/workflows/ci.yml)
-[![Swift](https://img.shields.io/badge/Swift-5.6-red)](https://www.swift.org/download)
+[![Swift](https://img.shields.io/badge/Swift-5.8%20%7C%205.7-red)](https://www.swift.org/download)
 
-A Swift Package Manager build tool plugin that supports obfuscating Swift literals embedded in SwiftPM libraries and executables.
+A Swift Package Manager build tool plugin that supports obfuscating Swift literals embedded in libraries and executables.
 
 ## Usage
 
-Please see [the Swift Confidential documentation](https://github.com/securevale/swift-confidential) for more detailed usage instructions.
+Please see the [Swift Confidential documentation](https://github.com/securevale/swift-confidential) for more detailed usage instructions.
 
 ### Adding the plugin as a dependency
 
-To use the Swift Confidential plugin with your package, add it to the package's dependencies and then to your target's plugins:
+You can use this plugin with both SwiftPM and Xcode targets, depending on your needs. Please see the relevant section below for detailed installation instructions.
+
+#### SwiftPM
+
+To use the Swift Confidential plugin with your SwiftPM target, add it to the package's dependencies and then to your target's plugins:
 
 ```swift
-// swift-tools-version: 5.6
+// swift-tools-version: 5.7
 
 import PackageDescription
 
 let package = Package(
     // name, platforms, products, etc.
     dependencies: [
         // other dependencies
-        .package(url: "https://github.com/securevale/swift-confidential-plugin.git", from: "0.1.0")
+        .package(url: "https://github.com/securevale/swift-confidential-plugin.git", .upToNextMinor(from: "0.2.0"))
     ],
     targets: [
         .target(
@@ -36,7 +40,14 @@ let package = Package(
 )
 ```
 
-> **NOTE:** Swift 5.6 is required in order to run the plugin.
+#### Xcode
+
+To use the Swift Confidential plugin directly with your Xcode target:
+
+* Add `swift-confidential-plugin` package to your Xcode project. Please refer to the [official documentation](https://developer.apple.com/documentation/xcode/adding-package-dependencies-to-your-app) for step-by-step instructions on how to add package dependencies.
+* Then, navigate to your target’s `Build Phases` pane, and in the `Run Build Tool Plug-ins` section, click the `+` button, select the `Confidential` plugin, and click the `Add` button.
+
+> **NOTE:** Due to the limitations of XcodeProjectPlugin API, the [`confidential.yml` configuration file](https://github.com/securevale/swift-confidential#configuration) must be located in the Xcode project's top-level directory, meaning that you cannot create distinct sets of secret literals for different Xcode targets. Hopefully, this behavior will be improved in the future.
 
 ## Versioning
 
@@ -45,4 +56,4 @@ This project follows [semantic versioning](https://semver.org/). The plugin's re
 ## License
 
 This plugin is released under Apache License v2.0 with Runtime Library Exception. 
-Please see [LICENSE](LICENSE) for more information.
+Please see [LICENSE](LICENSE) for more information.