Merge pull request #73 from mxcl/fixes/55

typealias PathStruct and add Swift 5.5 niceness

.github/codecov.yml

@@ -1,2 +1,3 @@
 ignore:
-  - Tests
+  - Tests/PathTests/etc.swift
+  - Tests/PathTests/TemporaryDirectory.swift

.github/workflows/cd.yml

@@ -0,0 +1,24 @@
+name: CD
+on:
+  release:
+    types: published
+jobs:
+  docs:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: steven0351/publish-jazzy-docs@v1
+      with:
+        personal_access_token: ${{ secrets.PAT }}
+        config: .github/jazzy.yml
+        version: ${{ github.event.release.tag_name }}
+        history: false
+
+  pods:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2
+    - run: pod trunk push --allow-warnings
+      env:
+        COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}
+        VERSION: ${{ github.event.release.tag_name }}

.github/workflows/checks.yml

@@ -0,0 +1,14 @@
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - '**/*.swift'
+      - .github/workflows/checks.yml
+jobs:
+  smoke:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - run: swift --version
+    - run: swift test --parallel

.github/workflows/ci.yml

@@ -0,0 +1,81 @@
+name: CI
+on:
+  pull_request:
+    paths:
+      - '**/*.swift'
+      - .github/workflows/ci.yml
+  schedule:
+    - cron: '3 3 * * 5'  # 3:03 AM, every Friday
+concurrency:
+  group: ${{ github.head_ref || 'push' }}
+  cancel-in-progress: true
+jobs:
+  smoke:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2
+    - run: swift test --generate-linuxmain
+    - run: git diff --exit-code
+
+  apple:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        platform:
+        - iOS
+        - tvOS
+        - macOS
+        - watchOS
+    steps:
+    - uses: actions/checkout@v2
+    - uses: mxcl/xcodebuild@v1
+      with:
+        platform: ${{ matrix.platform }}
+        code-coverage: true
+        warnings-as-errors: true
+    - uses: codecov/codecov-action@v1
+
+  linux-swift-4:
+    name: linux (${{ matrix.swift }})
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        swift: ['4.2', '5.0']
+    container:
+      image: swift:${{ matrix.swift }}
+    steps:
+    - uses: actions/checkout@v2
+    - run: useradd -ms /bin/bash mxcl
+    - run: chown -R mxcl .
+    - run: su mxcl -c 'swift test --parallel'
+
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        swift:
+        - '5.1'
+        - '5.2'
+        - '5.3'
+        - '5.4'
+    container:
+      image: swift:${{ matrix.swift }}
+    steps:
+    - uses: actions/checkout@v2
+    - run: useradd -ms /bin/bash mxcl
+           # ^^ we need to be a normal user and not root for the tests to be valid
+    - run: chown -R mxcl .
+    - run: su mxcl -c 'swift test --parallel --enable-code-coverage'
+    - name: Generate `.lcov`
+      run: |
+        apt-get -qq update && apt-get -qq install curl
+        b=$(swift build --show-bin-path)
+        llvm-cov export \
+          -format lcov \
+          -instr-profile="$b"/codecov/default.profdata \
+          --ignore-filename-regex='\.build|Tests' \
+          "$b"/*.xctest \
+          > info.lcov
+    - uses: codecov/codecov-action@v1
+      with:
+        file: ./info.lcov

.travis.yml

@@ -1,90 +1,16 @@
-# only run for: merge commits, releases and pull-requests
+# Travis does CD, GHA does CI
-if: type != push OR branch = master OR branch =~ /^deploy-\d+\.\d+\.\d+(-.*)?$/ OR branch =~ /^\d+\.\d+\.\d+(-.*)?$/
+if: branch =~ /^deploy-\d+\.\d+\.\d+(-.*)?$/ OR branch =~ /^\d+\.\d+\.\d+(-.*)?$/
 
 stages:
-  - name: pretest
-    if: NOT branch =~ /^deploy-\d+\.\d+\.\d+(-.*)?$/
-  - name: test
-    if: NOT branch =~ /^deploy-\d+\.\d+\.\d+(-.*)?$/
   - name: deploy
     if: branch =~ /^deploy-\d+\.\d+\.\d+(-.*)?$/
   - name: publish
     if: branch =~ /^\d+\.\d+\.\d+(-.*)?$/
 
 os: osx
-language: swift
-osx_image: xcode10.1
-xcode_project: Path.swift.xcodeproj
-xcode_scheme: Path.swift-Package
 
 jobs:
   include:
-    - name: macOS / Swift 4.0.3
-      before_script: swift build -Xswiftc -warnings-as-errors
-      script: swift test --parallel -Xswiftc -swift-version -Xswiftc 4
-
-    - &std
-      name: macOS / Swift 4.2.1
-      before_script: swift build -Xswiftc -warnings-as-errors
-      script: swift test --parallel
-
-    - <<: *std
-      name: macOS / Swift 5.0
-      osx_image: xcode10.2
-
-    - <<: *std
-      name: macOS / Swift 5.1
-      osx_image: xcode11
-
-    - &xcodebuild
-      before_install: swift package generate-xcodeproj --enable-code-coverage
-      xcode_destination: platform=iOS Simulator,OS=latest,name=iPhone XS
-      name: iOS / Swift 4.2.1
-      after_success: bash <(curl -s https://codecov.io/bash)
-
-    - <<: *xcodebuild
-      xcode_destination: platform=tvOS Simulator,OS=latest,name=Apple TV
-      name: tvOS / Swift 4.2.1
-
-    - <<: *xcodebuild
-      name: watchOS / Swift 4.2.1
-      script: |
-        set -o pipefail
-        xcodebuild \
-          -project Path.swift.xcodeproj \
-          -scheme Path.swift-Package \
-          -destination 'platform=watchOS Simulator,OS=latest,name=Apple Watch Series 4 - 40mm' \
-          build | xcpretty
-      after_success: false
-
-    - &linux
-      env: SWIFT_VERSION=4.2.4
-      os: linux
-      name: Linux / Swift 4.2.4
-      language: generic
-      sudo: false
-      install: eval "$(curl -sL https://swiftenv.fuller.li/install.sh)"
-      before_script: swift build -Xswiftc -warnings-as-errors
-      script: swift test --parallel
-
-    - <<: *linux
-      env: SWIFT_VERSION=5.0.3
-      name: Linux / Swift 5.0.3
-
-    - <<: *linux
-      env: SWIFT_VERSION=5.1.3
-      name: Linux / Swift 5.1.3
-      
-    - <<: *linux
-      env: SWIFT_VERSION=5.2-DEVELOPMENT-SNAPSHOT-2020-01-22-a
-      name: Linux / Swift 5.2.0-dev+2020-01-22-a
-
-    - stage: pretest
-      name: Check Linux tests are sync’d
-      install: swift test --generate-linuxmain
-      script: git diff --exit-code
-      osx_image: xcode10.2
-
     - stage: deploy
       name: Deploy
       osx_image: xcode11
@@ -105,7 +31,7 @@ jobs:
 
     - stage: publish
       name: Jazzy
-      osx_image: xcode10.2
+      osx_image: xcode11
       install: gem install jazzy
       before_script: swift package generate-xcodeproj
       script: |
@@ -121,8 +47,8 @@ jobs:
           tags: true
 
     - name: CocoaPods
-      osx_image: xcode10.2
       env: HOMEBREW_NO_INSTALL_CLEANUP=1
+      osx_image: xcode11
       install:
         - brew install mxcl/made/swift-sh
         - curl -O https://raw.githubusercontent.com/mxcl/ops/master/deploy

Path.swift.podspec

@@ -0,0 +1,16 @@
+Pod::Spec.new do |spec|
+  spec.name           = "Path.swift"
+  spec.version        = ENV['VERSION'] || "0.0.1"
+  spec.summary        = "Delightful, robust, cross-platform and chainable file-pathing functions."
+  spec.homepage       = "https://github.com/mxcl/Path.swift"
+  spec.license        = "Unlicense"
+  spec.author         = { "Max Howell" => "mxcl@me.com" }
+  spec.source         = { :git => "https://github.com/mxcl/Path.swift.git", :tag => "#{spec.version}" }
+  spec.source_files   = "Sources/*.swift"
+  spec.swift_versions = ['4.2', '5']
+  spec.module_name    = 'Path'
+  spec.osx.deployment_target     = '10.10'
+  spec.ios.deployment_target     = '8.0'
+  spec.tvos.deployment_target    = '9.0'
+  spec.watchos.deployment_target = '2.0'
+end

README.md

@@ -31,6 +31,9 @@ print(bar.isFile)  // => true
 let foo = try Path.root.join("foo").copy(into: Path.root.join("bar").mkdir())
 print(foo)         // => /bar/foo
 print(foo.isFile)  // => true
+// ^^ the `into:` version will only copy *into* a directory, the `to:` version copies
+// to a file at that path, thus you will not accidentally copy into directories you
+// may not have realized existed.
 
 // we support dynamic-member-syntax when joining named static members, eg:
 let prefs = Path.home.Library.Preferences  // => /Users/mxcl/Library/Preferences
@@ -42,16 +45,13 @@ try Bundle.resources.helper.copy(into: Path.root.usr.local.bin).chmod(0o500)
 We emphasize safety and correctness, just like Swift, and also (again like
 Swift), we provide a thoughtful and comprehensive (yet concise) API.
 
-# Support mxcl
+# Sponsor @mxcl
 
 Hi, I’m Max Howell and I have written a lot of open source software—generally
-a good deal of my free time 👨🏻‍💻.
+a good deal of my free time 👨🏻‍💻. Sponsorship helps me justify creating new open
+source and maintaining it. Thank you.
 
-<a href="https://www.patreon.com/mxcl">
+[Sponsor @mxcl].
-	<img src="https://c5.patreon.com/external/logo/become_a_patron_button@2x.png" width="160">
-</a>
-
-[Other donation/tipping options](http://mxcl.dev/#donate)
 
 # Handbook
 
@@ -117,6 +117,25 @@ everything would compile if we allowed arbituary variables to take *any* named
 property as valid syntax. What we have is what you want most of the time but
 much less (potentially) dangerous (at runtime).
 
+### Pathish
+
+`Path`, and `DynamicPath` (the result of eg. `Path.root`) both conform to
+`Pathish` which is a protocol that contains all pathing functions. Thus if
+you create objects from a mixture of both you need to create generic
+functions or convert any `DynamicPath`s to `Path` first:
+
+```swift
+let path1 = Path("/usr/lib")!
+let path2 = Path.root.usr.bin
+var paths = [Path]()
+paths.append(path1)        // fine
+paths.append(path2)        // error
+paths.append(Path(path2))  // ok
+```
+
+This is inconvenient but as Swift stands there’s nothing we can think of
+that would help.
+
 ## Initializing from user-input
 
 The `Path` initializer returns `nil` unless fed an absolute path; thus to
@@ -140,7 +159,7 @@ strings that you need to be paths:
 
 ```swift
 let absolutePath = "/known/path"
-let path1 = Path.root/pathString
+let path1 = Path.root/absolutePath
 
 let pathWithoutInitialSlash = "known/path"
 let path2 = Path.root/pathWithoutInitialSlash
@@ -278,6 +297,9 @@ Path.home/"/b"     // => /Users/mxcl/b
 Path.home.foo.bar.join("..")  // => /Users/mxcl/foo
 Path.home.foo.bar.join(".")   // => /Users/mxcl/foo/bar
 
+// though note that we provide `.parent`:
+Path.home.foo.bar.parent      // => /Users/mxcl/foo
+
 // of course, feel free to join variables:
 let b = "b"
 let c = "c"
@@ -342,9 +364,13 @@ no filesystem entry there at all check if `type` is `nil`.
 
 Changing directory is dangerous, you should *always* try to avoid it and thus
 we don’t even provide the method. If you are executing a sub-process then
-use `Process.currentDirectoryURL`.
+use `Process.currentDirectoryURL` to change *its* working directory when it
+executes.
 
-If you must then use `FileManager.changeCurrentDirectory`.
+If you must change directory then use `FileManager.changeCurrentDirectory` as
+early in your process as *possible*. Altering the global state of your app’s
+environment is fundamentally dangerous creating hard to debug issues that
+you won‘t find for potentially *years*.
 
 # I thought I should only use `URL`s?
 
@@ -379,7 +405,15 @@ developers) it is snappy and familiar.
 SwiftPM:
 
 ```swift
-package.append(.package(url: "https://github.com/mxcl/Path.swift.git", from: "1.0.0"))
+package.append(
+    .package(url: "https://github.com/mxcl/Path.swift.git", from: "1.0.0")
+)
+
+package.targets.append(
+    .target(name: "Foo", dependencies: [
+        .product(name: "Path", package: "Path.swift")
+    ])
+)
 ```
 
 CocoaPods:
@@ -401,12 +435,13 @@ Carthage:
 
 
 [badge-platforms]: https://img.shields.io/badge/platforms-macOS%20%7C%20Linux%20%7C%20iOS%20%7C%20tvOS%20%7C%20watchOS-lightgrey.svg
-[badge-languages]: https://img.shields.io/badge/swift-4.2%20%7C%205.0%20%7C%205.1%20%7C%205.2-orange.svg
+[badge-languages]: https://img.shields.io/badge/swift-4.2%20%7C%205.x-orange.svg
 [docs]: https://mxcl.dev/Path.swift/Structs/Path.html
 [badge-jazzy]: https://raw.githubusercontent.com/mxcl/Path.swift/gh-pages/badge.svg?sanitize=true
 [badge-codecov]: https://codecov.io/gh/mxcl/Path.swift/branch/master/graph/badge.svg
-[badge-ci]: https://travis-ci.com/mxcl/Path.swift.svg
+[badge-ci]: https://github.com/mxcl/Path.swift/workflows/Checks/badge.svg
 [travis]: https://travis-ci.com/mxcl/Path.swift
 [codecov]: https://codecov.io/gh/mxcl/Path.swift
 [badge-version]: https://img.shields.io/cocoapods/v/Path.swift.svg?label=version
 [cocoapods]: https://cocoapods.org/pods/Path.swift
+[Sponsor @mxcl]: https://github.com/sponsors/mxcl

Sources/Path+CommonDirectories.swift

@@ -14,6 +14,18 @@ extension Path {
         return .init(string: "/")
     }
 
+#if swift(>=5.3)
+    public static func source(for filePath: String = #filePath) -> (file: DynamicPath, directory: DynamicPath) {
+        let file = DynamicPath(string: filePath)
+        return (file: file, directory: .init(file.parent))
+    }
+#else
+    public static func source(for filePath: String = #file) -> (file: DynamicPath, directory: DynamicPath) {
+        let file = DynamicPath(string: filePath)
+        return (file: file, directory: .init(file.parent))
+    }
+#endif
+
     /// Returns a `Path` representing the user’s home directory
     public static var home: DynamicPath {
         let string: String
@@ -96,3 +108,13 @@ func defaultUrl(for searchPath: FileManager.SearchPathDirectory) -> DynamicPath
 }
 #endif
 
+#if swift(>=5.5)
+extension Pathish where Self == Path {
+    static var home: DynamicPath { Path.home }
+    static var root: DynamicPath { Path.root }
+    static var cwd: DynamicPath { Path.cwd }
+    static var documents: DynamicPath { Path.documents }
+    static var caches: DynamicPath { Path.caches }
+    static var applicationSupport: DynamicPath { Path.applicationSupport }
+}
+#endif

Sources/Path+FileManager.swift

@@ -29,7 +29,8 @@ public extension Pathish {
         if overwrite, let tokind = to.type, tokind != .directory, type != .directory {
             try FileManager.default.removeItem(at: to.url)
         }
-    #if os(Linux) && !swift(>=5.3) // check if fixed
+    #if os(Linux)
+        //NOTE doing manually due to inconsistency in Linux Foundation behavior
         if !overwrite, to.type != nil {
             throw CocoaError.error(.fileWriteFileExists)
         }
@@ -69,7 +70,8 @@ public extension Pathish {
         if overwrite, let kind = rv.type, kind != .directory {
             try FileManager.default.removeItem(at: rv.url)
         }
-    #if os(Linux) && !swift(>=5.3) // check if fixed
+    #if os(Linux)
+        //NOTE doing manually due to inconsistency in Linux Foundation behavior
         if !overwrite, rv.type != nil {
             throw CocoaError.error(.fileWriteFileExists)
         }

Sources/Path+ls.swift

@@ -164,7 +164,7 @@ public extension Pathish {
             if options != .a, path.basename().hasPrefix(".") { return nil }
             // ^^ we don’t use the Foundation `skipHiddenFiles` because it considers weird things hidden and we are mirroring `ls`
             return path
-        }
+        }.sorted()
     }
 
     /// Recursively find files under this path. If the path is a file, no files will be found.

Sources/Path.swift

@@ -7,6 +7,8 @@ import func Glibc.realpath
 let _realpath = Glibc.realpath
 #endif
 
+public typealias PathStruct = Path
+
 /**
  A `Path` represents an absolute path on a filesystem.
 
@@ -168,6 +170,7 @@ public extension Pathish {
      */
     var parent: Path {
         let index = string.lastIndex(of: "/")!
+        guard index != string.indices.startIndex else { return Path(string: "/") }
         let substr = string[string.indices.startIndex..<index]
         return Path(string: String(substr))
     }

Tests/PathTests/PathTests.swift

@@ -3,7 +3,20 @@ import func XCTest.XCTAssertEqual
 import Foundation
 import XCTest
 
+extension PathStruct {
+    var foo: Int { fatalError()}
+}
+
 class PathTests: XCTestCase {
+    func testNewStuff() {
+    #if swift(>=5.5)
+        func foo<P: Pathish>(_ path: P) {}
+
+        foo(.home)
+        foo(.root)
+    #endif
+    }
+
     func testConcatenation() {
         XCTAssertEqual((Path.root/"bar").string, "/bar")
         XCTAssertEqual(Path.cwd.string, FileManager.default.currentDirectoryPath)
@@ -192,6 +205,14 @@ class PathTests: XCTestCase {
         XCTAssertEqual(Path.root/"a/foo"/"../../../bar", Path.root/"bar")
     }
 
+    func testParent() {
+        XCTAssertEqual(Path("/root/boot")!.parent.string, "/root")
+        XCTAssertEqual(Path("/root/boot")!.parent.parent.string, "/")
+        XCTAssertEqual(Path("/root/boot")!.parent.parent.parent.string, "/")
+        XCTAssertEqual(Path("/root")!.parent.string, "/")
+        XCTAssertEqual(Path("/root")!.parent.parent.string, "/")
+    }
+
     func testDynamicMember() {
         XCTAssertEqual(Path.root.Documents, Path.root/"Documents")
 
@@ -199,7 +220,7 @@ class PathTests: XCTestCase {
         XCTAssertEqual(a.Documents, Path.home/"foo/Documents")
 
         // verify use of the dynamic-member-subscript works according to our rules
-        XCTAssertEqual(Path.home[dynamicMember: "../~foo"].string, "\(Path.home.parent.string)/~foo")
+        XCTAssertEqual(Path.home[dynamicMember: "../~foo"].string, Path(Path.home).parent.join("~foo").string)
     }
 
     func testCopyTo() throws {
@@ -305,6 +326,13 @@ class PathTests: XCTestCase {
         XCTAssertEqual(Path.root.string, "/")
         XCTAssertEqual(Path.home.string, NSHomeDirectory())
         XCTAssertEqual(Path.documents.string, NSHomeDirectory() + "/Documents")
+    #if swift(>=5.3)
+        let filePath = Path(#filePath)!
+    #else
+        let filePath = Path(#file)!
+    #endif
+        XCTAssertEqual(Path.source().file, filePath)
+        XCTAssertEqual(Path.source().directory, filePath.parent)
     #if !os(Linux)
         XCTAssertEqual(Path.caches.string, NSHomeDirectory() + "/Library/Caches")
         XCTAssertEqual(Path.cwd.string, FileManager.default.currentDirectoryPath)
@@ -373,17 +401,13 @@ class PathTests: XCTestCase {
 
     func testTimes() throws {
         try Path.mktemp { tmpdir in
-            let foo = try tmpdir.foo.touch()
             let now1 = Date().timeIntervalSince1970.rounded(.down)
-        #if !os(Linux)
-            XCTAssertEqual(foo.ctime?.timeIntervalSince1970.rounded(.down), now1)  //FIXME flakey
-        #endif
-            XCTAssertEqual(foo.mtime?.timeIntervalSince1970.rounded(.down), now1)  //FIXME flakey
             sleep(1)
-            try foo.touch()
+            let foo = try tmpdir.foo.touch()
-            let now2 = Date().timeIntervalSince1970.rounded(.down)
+        #if !os(Linux)
-            XCTAssertNotEqual(now1, now2)
+            XCTAssertGreaterThan(foo.ctime?.timeIntervalSince1970.rounded(.down) ?? 0, now1)  //FIXME flakey
-            XCTAssertEqual(foo.mtime?.timeIntervalSince1970.rounded(.down), now2)  //FIXME flakey
+        #endif
+            XCTAssertGreaterThan(foo.mtime?.timeIntervalSince1970.rounded(.down) ?? 0, now1)  //FIXME flakey
 
             XCTAssertNil(tmpdir.void.mtime)
             XCTAssertNil(tmpdir.void.ctime)
@@ -447,7 +471,7 @@ class PathTests: XCTestCase {
         #if os(macOS)
             XCTAssertEqual(bndl.defaultSharedFrameworksPath, tmpdir.Contents.Frameworks)
             XCTAssertEqual(bndl.defaultResourcesPath, tmpdir.Contents.Resources)
-        #elseif os(tvOS) || os(iOS)
+        #elseif os(tvOS) || os(iOS) || os(watchOS)
             XCTAssertEqual(bndl.defaultSharedFrameworksPath, tmpdir.Frameworks)
             XCTAssertEqual(bndl.defaultResourcesPath, tmpdir)
         #else
@@ -499,8 +523,19 @@ class PathTests: XCTestCase {
 
     func testTouchThrowsIfCannotWrite() throws {
         try Path.mktemp { tmpdir in
+
+            print(try FileManager.default.attributesOfItem(atPath: tmpdir.string)[.posixPermissions])
+
+            //FIXME fails in Docker image (only)
             try tmpdir.chmod(0o000)
+
+            let attrs = try FileManager.default.attributesOfItem(atPath: tmpdir.string)
+            XCTAssertEqual(attrs[.posixPermissions] as? Int, 0)
+
+            print(attrs[.posixPermissions])
+
             XCTAssertThrowsError(try tmpdir.bar.touch())
+            XCTAssertFalse(tmpdir.bar.exists)
         }
     }
 
@@ -653,12 +688,10 @@ class PathTests: XCTestCase {
             XCTAssertEqual(bar.type, .symlink)
         }
     }
-}
     
-private func XCTAssertEqual<P: Pathish, Q: Pathish>(_ p: P, _ q: Q, file: StaticString = #file, line: UInt = #line) {
+    func testOptionalInitializer() throws {
-    XCTAssertEqual(p.string, q.string, file: file, line: line)
+        XCTAssertNil(Path(""))
-}
+        XCTAssertNil(Path("./foo"))
-
+        XCTAssertEqual(Path("/foo"), Path.root.foo)
-private func XCTAssertEqual<P: Pathish, Q: Pathish>(_ p: P?, _ q: Q?, file: StaticString = #file, line: UInt = #line) {
+    }
-    XCTAssertEqual(p?.string, q?.string, file: file, line: line)
 }

Tests/PathTests/XCTestManifests.swift

@@ -45,7 +45,10 @@ extension PathTests {
         ("testMktemp", testMktemp),
         ("testMoveInto", testMoveInto),
         ("testMoveTo", testMoveTo),
+        ("testNewStuff", testNewStuff),
         ("testNoUndesiredSymlinkResolution", testNoUndesiredSymlinkResolution),
+        ("testOptionalInitializer", testOptionalInitializer),
+        ("testParent", testParent),
         ("testPathComponents", testPathComponents),
         ("testReadlinkOnFileReturnsSelf", testReadlinkOnFileReturnsSelf),
         ("testReadlinkOnNonExistantFileThrows", testReadlinkOnNonExistantFileThrows),

Tests/PathTests/etc.swift

@@ -1,11 +1,43 @@
 import XCTest
 import Path
 
+#if swift(>=5.3)
+func XCTAssertEqual<P: Pathish>(_ set1: Set<Path>, _ set2: Set<Path>, _ message: @autoclosure () -> String = "", file: StaticString = #filePath, line: UInt = #line, relativeTo: P) {
+    logic(set1, set2, relativeTo: relativeTo) {
+        XCTFail($0, file: file, line: line)
+    }
+}
+#else
 func XCTAssertEqual<P: Pathish>(_ set1: Set<Path>, _ set2: Set<Path>, _ message: @autoclosure () -> String = "", file: StaticString = #file, line: UInt = #line, relativeTo: P) {
+    logic(set1, set2, relativeTo: relativeTo) {
+        XCTFail($0, file: file, line: line)
+    }
+}
+#endif
+
+private func logic<P: Pathish>(_ set1: Set<Path>, _ set2: Set<Path>, relativeTo: P, fail: (String) -> Void) {
     if set1 != set2 {
         let cvt: (Path) -> String = { $0.relative(to: relativeTo) }
         let out1 = set1.map(cvt).sorted()
         let out2 = set1.map(cvt).sorted()
-        XCTFail("Set(\(out1)) is not equal to Set(\(out2))", file: file, line: line)
+        fail("Set(\(out1)) is not equal to Set(\(out2))")
     }
 }
+
+#if swift(>=5.3)
+func XCTAssertEqual<P: Pathish, Q: Pathish>(_ p: P, _ q: Q, file: StaticString = #filePath, line: UInt = #line) {
+    XCTAssertEqual(p.string, q.string, file: file, line: line)
+}
+
+func XCTAssertEqual<P: Pathish, Q: Pathish>(_ p: P?, _ q: Q?, file: StaticString = #filePath, line: UInt = #line) {
+    XCTAssertEqual(p?.string, q?.string, file: file, line: line)
+}
+#else
+func XCTAssertEqual<P: Pathish, Q: Pathish>(_ p: P, _ q: Q, file: StaticString = #file, line: UInt = #line) {
+    XCTAssertEqual(p.string, q.string, file: file, line: line)
+}
+
+func XCTAssertEqual<P: Pathish, Q: Pathish>(_ p: P?, _ q: Q?, file: StaticString = #file, line: UInt = #line) {
+    XCTAssertEqual(p?.string, q?.string, file: file, line: line)
+}
+#endif