Expand tilde in path

Sources/hexcode/Commands/Hexcode.swift

@@ -10,7 +10,7 @@ struct Hexcode: AsyncParsableCommand {
                   by their hexadecimal codes.
                   """,
         usage: "hexcode <color-hex> [--directory <directory>]",
-        version: "hexcode 0.2.0",
+        version: "hexcode 0.2.1",
         subcommands: [
             FindColor.self,
             FindDuplicates.self,

Sources/hexcode/HexcodeApp.swift

@@ -27,7 +27,7 @@ final class HexcodeApp {
     ///   - directory: Optional custom directory from user input. Defaults to current directory.
     /// - throws: All unhandled errors that can be thrown out to standard output.
     func runFindColor(colorHex: String, in directory: String? = nil) async throws {
-        let directory = directory ?? fileManager.currentDirectoryPath
+        let directory = directory.map(expandTilde) ?? fileManager.currentDirectoryPath
         let colorAssets = try await assetCollector.collectAssets(in: directory)
         let foundColors = colorFinder.find(colorHex, in: colorAssets)
 
@@ -39,12 +39,11 @@ final class HexcodeApp {
         foundColors.forEach { output($0) }
     }
 
-
     /// Entry point for the `find-duplicates` subcommand logic.
     /// - Parameter directory: Optional custom directory from user input. Defaults to current directory.
     /// - throws: All unhandled errors that can be thrown out to standard output.
     func runFindDuplicates(in directory: String? = nil) async throws {
-        let directory = directory ?? fileManager.currentDirectoryPath
+        let directory = directory.map(expandTilde) ?? fileManager.currentDirectoryPath
         let colorAssets = try await assetCollector.collectAssets(in: directory)
         let foundDuplicates = colorFinder.findDuplicates(in: colorAssets)
 
@@ -72,3 +71,14 @@ final class HexcodeApp {
             }
     }
 }
+
+// MARK: - Private
+
+extension HexcodeApp {
+    private func expandTilde(_ path: String) -> String {
+        path.replacingOccurrences(
+            of: "~",
+            with: fileManager.homeDirectoryForCurrentUser.relativePath
+        )
+    }
+}

Tests/hexcodeTests/HexcodeAppTests.swift

@@ -175,6 +175,25 @@ final class HexcodeAppTests: XCTestCase {
         XCTAssertEqual(mocks.outputs, ["No \(blackHexStub) color found"])
     }
 
+    func test_runFindColor_withTildeInPath_expandsTildaToFilePath() async throws {
+        // Given
+        let homeDir = "/home/dir"
+        let homeURL = try XCTUnwrap(URL(filePath: homeDir))
+        mocks.fileManager.results.homeDirectoryForCurrentUser = homeURL
+
+        // When
+        try await sut.runFindColor(colorHex: blackHexStub, in: "~/TestProject")
+
+
+        // Then
+        XCTAssertEqual(mocks.fileManager.calls, [
+            .getHomeDirectoryForCurrentUser
+        ])
+        XCTAssertEqual(mocks.assetCollector.calls, [
+            .collectAssetsIn(directory: "\(homeDir)/TestProject")
+        ])
+    }
+
     // MARK: Test runFindDuplicates
 
     func test_runFindDuplicates_whenSingleDuplicateFound_outputsDuplicateHexAndAssetNames() async throws {
@@ -226,6 +245,25 @@ final class HexcodeAppTests: XCTestCase {
             "#FFFFFF text (Any, Light)",
         ])
     }
+
+    func test_runFindDuplicates_withTildeInPath_expandsTildaToFilePath() async throws {
+        // Given
+        let homeDir = "/Users/user"
+        let homeURL = try XCTUnwrap(URL(string: homeDir))
+        mocks.fileManager.results.homeDirectoryForCurrentUser = homeURL
+
+        // When
+        try await sut.runFindDuplicates(in: "~/documents/project")
+
+
+        // Then
+        XCTAssertEqual(mocks.fileManager.calls, [
+            .getHomeDirectoryForCurrentUser
+        ])
+        XCTAssertEqual(mocks.assetCollector.calls, [
+            .collectAssetsIn(directory: "\(homeDir)/documents/project")
+        ])
+    }
 }
 
 // MARK: - Private

Tests/hexcodeTests/Mocks/FileManagerMock.swift

@@ -10,13 +10,15 @@ final class FileManagerMock: FileManager {
     enum Call: Equatable {
         case getCurrentDirectoryPath
         case setCurrentDirectoryPath(String)
+        case getHomeDirectoryForCurrentUser
         case fileExists(path: String, isDirectory: UnsafeMutablePointer<ObjCBool>?)
         case contentsOfDirectory(path: String)
         case contents(path: String)
     }
 
     struct CallResults {
         var currentDirectoryPath: String = ""
+        var homeDirectoryForCurrentUser: URL = .init(filePath: "")
         var fileExistsAtPath: [String: PathContent] = [:]
         var contentsOfDirectory: [String: Result<[String], Error>] = [:]
         var contentsAtPath: [String: Data] = [:]
@@ -60,6 +62,13 @@ extension FileManagerMock {
         }
     }
 
+    override var homeDirectoryForCurrentUser: URL {
+        get {
+            calls.append(.getHomeDirectoryForCurrentUser)
+            return results.homeDirectoryForCurrentUser
+        }
+    }
+
     override func fileExists(atPath path: String, isDirectory: UnsafeMutablePointer<ObjCBool>?) -> Bool {
         calls.append(.fileExists(path: path, isDirectory: isDirectory))
         guard let pathContent = results.fileExistsAtPath[path] else { return false }