remove files dep

Author: twof

Package.resolved

@@ -1,15 +1,6 @@
 {
   "object": {
     "pins": [
-      {
-        "package": "Files",
-        "repositoryURL": "https://github.com/JohnSundell/Files",
-        "state": {
-          "branch": null,
-          "revision": "d273b5b7025d386feef79ef6bad7de762e106eaf",
-          "version": "4.2.0"
-        }
-      },
       {
         "package": "swift-argument-parser",
         "repositoryURL": "https://github.com/apple/swift-argument-parser",

Package.swift

@@ -9,15 +9,13 @@ let package = Package(
     ],
     dependencies: [
       .package(url: "https://github.com/jpsim/Yams.git", from: "4.0.0"),
-      .package(url: "https://github.com/JohnSundell/Files", from: "4.0.0"),
       .package(url: "https://github.com/apple/swift-argument-parser", from: "1.0.2"), 
     ],
     targets: [
         .executableTarget(
             name: "downstream",
             dependencies: [
               .product(name: "Yams", package: "Yams"),
-              .product(name: "Files", package: "Files"),
               .product(name: "ArgumentParser", package: "swift-argument-parser")
             ],
             exclude: [

Sources/downstream/DownstreamArgument.swift

@@ -1,6 +1,5 @@
 import ArgumentParser
 import Foundation
-import Files
 import Yams
 
 enum OutputFormat: String, ExpressibleByArgument {
@@ -19,10 +18,6 @@ extension TodoList {
     }
 }
 
-enum DownstreamError: Error {
-  case fileNotFound(path: String)
-}
-
 struct DownstreamArgument: ParsableCommand {
   @Option(name: .shortAndLong, help: "The format of the output")
   var outputFormat: OutputFormat = .humanFriendly
@@ -51,16 +46,18 @@ struct DownstreamArgument: ParsableCommand {
       return associationsFile.associations.matches(path)
     } else {
       // This path should be coming from git diff, so we expect it to be valid
-      let changedFile = try! File(path: path)
+      let changedFile = URL(fileURLWithPath: path)
+      let parent = changedFile.deletingLastPathComponent()
+      let downstreamYML = changedFile.appendingPathComponent("downstream.yml")
 
       if
-        let parent = changedFile.parent,
-        let downsteamYML = try? parent.file(named: "downstream.yml").read()
+        let contentData = FileManager.default.contents(atPath: downstreamYML.path),
+        let associations = String(data: contentData, encoding: .utf8)
       {
-        guard let associationsFile = try? decoder.decode(AssociationsFile.self, from: downsteamYML) else {
+        guard let associationsFile = try? decoder.decode(AssociationsFile.self, from: associations) else {
           throw ValidationError("\(parent.path)downstream.yml could not be parsed")
         }
-        let fileName = changedFile.name
+        let fileName = changedFile.lastPathComponent
         return associationsFile.associations.matches(fileName)
       }
     }