feat: Begins update for more modern swift-dependencies implementation.

Sources/CliVersion/CliClient.swift

@@ -0,0 +1,222 @@
+import Foundation
+#if canImport(FoundationNetworking)
+  import FoundationNetworking
+#endif
+import Dependencies
+import DependenciesMacros
+import ShellClient
+
+public extension DependencyValues {
+
+  var cliClient: CliClient {
+    get { self[CliClient.self] }
+    set { self[CliClient.self] = newValue }
+  }
+}
+
+@DependencyClient
+public struct CliClient {
+  public var build: @Sendable (BuildOptions) throws -> String
+  public var generate: @Sendable (GenerateOptions) throws -> String
+  public var update: @Sendable (UpdateOptions) throws -> String
+}
+
+extension CliClient: DependencyKey {
+  public static let testValue: CliClient = Self()
+
+  public static func live(environment: [String: String]) -> Self {
+    .init(
+      build: { try $0.run(environment) },
+      generate: { try $0.run() },
+      update: { try $0.run() }
+    )
+  }
+
+  public static var liveValue: CliClient {
+    .live(environment: ProcessInfo.processInfo.environment)
+  }
+}
+
+public extension CliClient {
+
+  // TODO: Use Int for `verbose`.
+  struct SharedOptions: Sendable {
+    let dryRun: Bool
+    let fileName: String
+    let target: String
+    let verbose: Bool
+
+    public init(
+      dryRun: Bool = false,
+      fileName: String,
+      target: String,
+      verbose: Bool = true
+    ) {
+      self.dryRun = dryRun
+      self.fileName = fileName
+      self.target = target
+      self.verbose = verbose
+    }
+  }
+
+  struct BuildOptions: Sendable {
+    let gitDirectory: String?
+    let shared: SharedOptions
+
+    public init(
+      gitDirectory: String? = nil,
+      shared: SharedOptions
+    ) {
+      self.gitDirectory = gitDirectory
+      self.shared = shared
+    }
+  }
+
+  struct GenerateOptions: Sendable {
+    let shared: SharedOptions
+
+    public init(shared: SharedOptions) {
+      self.shared = shared
+    }
+  }
+
+  struct UpdateOptions: Sendable {
+    let gitDirectory: String?
+    let shared: SharedOptions
+
+    public init(
+      gitDirectory: String? = nil,
+      shared: SharedOptions
+    ) {
+      self.gitDirectory = gitDirectory
+      self.shared = shared
+    }
+  }
+}
+
+// MARK: Private
+
+@_spi(Internal)
+public extension CliClient.SharedOptions {
+  var fileUrl: URL {
+    url(for: target).appendingPathComponent(fileName)
+  }
+
+  func parseTarget() throws -> URL {
+    let targetUrl = fileUrl
+      .deletingLastPathComponent()
+      .deletingLastPathComponent()
+
+    guard targetUrl.lastPathComponent == "Sources" else {
+      return url(for: "Sources")
+        .appendingPathComponent(target)
+        .appendingPathComponent(fileName)
+    }
+    return fileUrl
+  }
+
+  @discardableResult
+  func run<T>(
+    _ operation: () throws -> T
+  ) rethrows -> T {
+    try withDependencies {
+      $0.logger.logLevel = .init(verbose: verbose)
+    } operation: {
+      try operation()
+    }
+  }
+}
+
+private extension CliClient.BuildOptions {
+
+  func run(_ environment: [String: String]) throws -> String {
+    try shared.run {
+      @Dependency(\.gitVersionClient) var gitVersion
+      @Dependency(\.fileClient) var fileClient
+      @Dependency(\.logger) var logger
+
+      let gitDirectory = gitDirectory ?? environment["PWD"]
+
+      guard let gitDirectory else {
+        throw CliClientError.gitDirectoryNotFound
+      }
+
+      logger.debug("Building with git directory: \(gitDirectory)")
+
+      let fileUrl = shared.fileUrl
+      logger.debug("File url: \(fileUrl.cleanFilePath)")
+
+      let currentVersion = try gitVersion.currentVersion(in: gitDirectory)
+
+      let fileContents = buildTemplate
+        .replacingOccurrences(of: "nil", with: "\"\(currentVersion)\"")
+
+      try fileClient.write(string: fileContents, to: fileUrl)
+
+      return fileUrl.cleanFilePath
+    }
+  }
+}
+
+private extension CliClient.GenerateOptions {
+
+  func run() throws -> String {
+    @Dependency(\.fileClient) var fileClient
+    @Dependency(\.logger) var logger
+
+    let targetUrl = try shared.parseTarget()
+
+    logger.debug("Generate target url: \(targetUrl.cleanFilePath)")
+
+    guard !fileClient.fileExists(targetUrl) else {
+      throw CliClientError.fileExists(path: targetUrl.cleanFilePath)
+    }
+
+    if !shared.dryRun {
+      try fileClient.write(string: optionalTemplate, to: targetUrl)
+    } else {
+      logger.debug("Skipping, due to dry-run being passed.")
+    }
+    return targetUrl.cleanFilePath
+  }
+}
+
+private extension CliClient.UpdateOptions {
+
+  func run() throws -> String {
+    @Dependency(\.fileClient) var fileClient
+    @Dependency(\.gitVersionClient) var gitVersionClient
+    @Dependency(\.logger) var logger
+
+    let targetUrl = try shared.parseTarget()
+    logger.debug("Target url: \(targetUrl.cleanFilePath)")
+
+    let currentVersion = try gitVersionClient.currentVersion(in: gitDirectory)
+
+    let fileContents = optionalTemplate
+      .replacingOccurrences(of: "nil", with: "\"\(currentVersion)\"")
+
+    if !shared.dryRun {
+      try fileClient.write(string: fileContents, to: targetUrl)
+    } else {
+      logger.debug("Skipping due to dry run being passed.")
+      logger.debug("Parsed version: \(currentVersion)")
+    }
+    return targetUrl.cleanFilePath
+  }
+}
+
+private let optionalTemplate = """
+// Do not set this variable, it is set during the build process.
+let VERSION: String? = nil
+"""
+
+private let buildTemplate = """
+// Do not set this variable, it is set during the build process.
+let VERSION: String = nil
+"""
+
+enum CliClientError: Error {
+  case gitDirectoryNotFound
+  case fileExists(path: String)
+}

Sources/CliVersion/FileClient.swift

@@ -1,10 +1,21 @@
 import Dependencies
+import DependenciesMacros
 import Foundation
 #if canImport(FoundationNetworking)
   import FoundationNetworking
 #endif
 import XCTestDynamicOverlay
 
+public extension DependencyValues {
+
+  /// Access a basic ``FileClient`` that can read / write data to the file system.
+  ///
+  var fileClient: FileClient {
+    get { self[FileClient.self] }
+    set { self[FileClient.self] = newValue }
+  }
+}
+
 /// Represents the interactions with the file system.  It is able
 /// to read from and write to files.
 ///
@@ -13,25 +24,23 @@ import XCTestDynamicOverlay
 ///  @Dependency(\.fileClient) var fileClient
 /// ```
 ///
-public struct FileClient {
+@DependencyClient
+public struct FileClient: Sendable {
+
+  public var fileExists: @Sendable (URL) -> Bool = { _ in true }
+
+  /// Read the contents of a file.
+  public var read: @Sendable (URL) throws -> String
 
   /// Write `Data` to a file `URL`.
-  public private(set) var write: (Data, URL) throws -> Void
+  public private(set) var write: @Sendable (Data, URL) throws -> Void
 
-  /// Create a new ``GitVersion/FileClient`` instance.
-  ///
-  /// This is generally not interacted with directly, instead access as a dependency.
-  ///
-  ///```swift
-  /// @Dependency(\.fileClient) var fileClient
-  ///```
+  /// Read the contents of a file at the given path.
   ///
   /// - Parameters:
-  ///   - write: Write the data to a file.
-  public init(
-    write: @escaping (Data, URL) throws -> Void
-  ) {
-    self.write = write
+  ///   - path: The file path to read from.
+  public func read(_ path: String) throws -> String {
+    try read(url(for: path))
   }
 
   /// Write's the the string to a  file path.
@@ -40,8 +49,8 @@ public struct FileClient {
   ///   - string: The string to write to the file.
   ///   - path: The file path.
   public func write(string: String, to path: String) throws {
-    let url = try url(for: path)
-    try self.write(string: string, to: url)
+    let url = url(for: path)
+    try write(string: string, to: url)
   }
 
   /// Write's the the string to a  file path.
@@ -50,49 +59,27 @@ public struct FileClient {
   ///   - string: The string to write to the file.
   ///   - url: The file url.
   public func write(string: String, to url: URL) throws {
-    try self.write(Data(string.utf8), url)
+    try write(Data(string.utf8), url)
   }
 }
 
 extension FileClient: DependencyKey {
 
   /// A ``FileClient`` that does not do anything.
-  public static let noop = FileClient.init(
+  public static let noop = FileClient(
+    fileExists: { _ in true },
+    read: { _ in "" },
     write: { _, _ in }
   )
 
   /// An `unimplemented` ``FileClient``.
-  public static let testValue = FileClient(
-    write: unimplemented("\(Self.self).write")
-  )
+  public static let testValue = FileClient()
 
   /// The live ``FileClient``
   public static let liveValue = FileClient(
+    fileExists: { FileManager.default.fileExists(atPath: $0.cleanFilePath) },
+    read: { try String(contentsOf: $0, encoding: .utf8) },
     write: { try $0.write(to: $1, options: .atomic) }
   )
 
 }
-
-extension DependencyValues {
-
-  /// Access a basic ``FileClient`` that can read / write data to the file system.
-  ///
-  public var fileClient: FileClient {
-    get { self[FileClient.self] }
-    set { self[FileClient.self] = newValue }
-  }
-}
-
-// MARK: - Private
-fileprivate func url(for path: String) throws -> URL {
-  #if os(Linux)
-    return URL(fileURLWithPath: path)
-  #else
-    if #available(macOS 13.0, *) {
-      return URL(filePath: path)
-    } else {
-      // Fallback on earlier versions
-      return URL(fileURLWithPath: path)
-    }
-  #endif
-}

Sources/CliVersion/GitVersionClient.swift

@@ -40,7 +40,7 @@ public struct GitVersionClient {
   /// - Parameters:
   ///   - gitDirectory: The directory to run the command in.
   public func currentVersion(in gitDirectory: String? = nil) throws -> String {
-    try self.currentVersion(gitDirectory)
+    try currentVersion(gitDirectory)
   }
 
   /// Override the `currentVersion` command and return the passed in version string.
@@ -50,7 +50,7 @@ public struct GitVersionClient {
   /// - Parameters:
   ///   - version: The version string to return when `currentVersion` is called.
   public mutating func override(with version: String) {
-    self.currentVersion = { _ in version }
+    currentVersion = { _ in version }
   }
 }
 
@@ -69,32 +69,33 @@ extension GitVersionClient: TestDependencyKey {
   }
 }
 
-extension DependencyValues {
+public extension DependencyValues {
 
   /// A ``GitVersionClient`` that can retrieve the current version from a
   /// git directory.
-  public var gitVersionClient: GitVersionClient {
+  var gitVersionClient: GitVersionClient {
     get { self[GitVersionClient.self] }
     set { self[GitVersionClient.self] = newValue }
   }
 }
 
-extension ShellCommand {
-  public static func gitCurrentSha(gitDirectory: String? = nil) -> Self {
+public extension ShellCommand {
+  static func gitCurrentSha(gitDirectory: String? = nil) -> Self {
     GitVersion(workingDirectory: gitDirectory).command(for: .commit)
   }
 
-  public static func gitCurrentBranch(gitDirectory: String? = nil) -> Self {
+  static func gitCurrentBranch(gitDirectory: String? = nil) -> Self {
     GitVersion(workingDirectory: gitDirectory).command(for: .branch)
   }
 
-  public static func gitCurrentTag(gitDirectory: String? = nil) -> Self {
+  static func gitCurrentTag(gitDirectory: String? = nil) -> Self {
     GitVersion(workingDirectory: gitDirectory).command(for: .describe)
   }
 }
 
 // MARK: - Private
-fileprivate struct GitVersion {
+
+private struct GitVersion {
   @Dependency(\.logger) var logger: Logger
   @Dependency(\.shellClient) var shell: ShellClient
 
@@ -113,7 +114,7 @@ fileprivate struct GitVersion {
     }
   }
 
-  internal func command(for argument: VersionArgs) -> ShellCommand {
+  func command(for argument: VersionArgs) -> ShellCommand {
     .init(
       shell: .env,
       environment: nil,
@@ -123,7 +124,7 @@ fileprivate struct GitVersion {
   }
 }
 
-fileprivate extension GitVersion {
+private extension GitVersion {
   func run(command: ShellCommand) throws -> String {
     try shell.background(command, trimmingCharactersIn: .whitespacesAndNewlines)
   }

Sources/CliVersion/Helpers.swift

@@ -0,0 +1,40 @@
+import Foundation
+#if canImport(FoundationNetworking)
+  import FoundationNetworking
+#endif
+import Logging
+
+@_spi(Internal)
+public extension Logger.Level {
+
+  init(verbose: Bool) {
+    if verbose {
+      self = .debug
+    } else {
+      self = .info
+    }
+  }
+}
+
+@_spi(Internal)
+public extension URL {
+  var cleanFilePath: String {
+    absoluteString.replacingOccurrences(of: "file://", with: "")
+  }
+}
+
+// MARK: - Private
+
+@_spi(Internal)
+public func url(for path: String) -> URL {
+  #if os(Linux)
+    return URL(fileURLWithPath: path)
+  #else
+    if #available(macOS 13.0, *) {
+      return URL(filePath: path)
+    } else {
+      // Fallback on earlier versions
+      return URL(fileURLWithPath: path)
+    }
+  #endif
+}