Initial commit

Sources/GitVersion/Client.swift

@@ -0,0 +1,38 @@
+import Foundation
+#if canImport(FoundationNetworking)
+import FoundationNetworking
+#endif
+import ShellClient
+import XCTestDynamicOverlay
+
+public struct GitVersionClient {
+  private var currentVersion: (String?) throws -> String
+  
+  public init(currentVersion: @escaping (String?) throws -> String) {
+    self.currentVersion = currentVersion
+  }
+  
+  public func currentVersion(in gitDirectory: String? = nil) throws -> String {
+    try self.currentVersion(gitDirectory)
+  }
+  
+  public mutating func override(with version: String) {
+    self.currentVersion = { _ in version }
+  }
+}
+
+extension GitVersionClient: TestDependencyKey {
+ 
+  public static let testValue = GitVersionClient(
+    currentVersion: unimplemented("\(Self.self).currentVersion", placeholder: "")
+  )
+  
+}
+
+extension DependencyValues {
+  
+  public var gitVersionClient: GitVersionClient {
+    get { self[GitVersionClient.self] }
+    set { self[GitVersionClient.self] = newValue }
+  }
+}