refactor: Code changes after System.IO.Abstractions upgrade

src/Common.Tests/Extensions/FileSystemExtensionsTest.cs

@@ -58,8 +58,8 @@ public class FileSystemExtensionsTest
         var fs = NewMockFileSystem(files, dirs, @"C:\root\path");
 
         fs.MergeDirectory(
-            fs.DirectoryInfo.FromDirectoryName("path1"),
-            fs.DirectoryInfo.FromDirectoryName("path2"));
+            fs.DirectoryInfo.New("path1"),
+            fs.DirectoryInfo.New("path2"));
 
         fs.AllDirectories.Select(MockUnixSupport.Path).Should()
             .NotContain(x => x.Contains("path1") || x.Contains("empty"));
@@ -80,8 +80,8 @@ public class FileSystemExtensionsTest
         var fs = NewMockFileSystem(files, @"C:\root\path");
 
         var act = () => fs.MergeDirectory(
-            fs.DirectoryInfo.FromDirectoryName("path1"),
-            fs.DirectoryInfo.FromDirectoryName("path2"));
+            fs.DirectoryInfo.New("path1"),
+            fs.DirectoryInfo.New("path2"));
 
         act.Should().Throw<IOException>();
     }
@@ -102,8 +102,8 @@ public class FileSystemExtensionsTest
         var fs = NewMockFileSystem(files, dirs, @"C:\root\path");
 
         var act = () => fs.MergeDirectory(
-            fs.DirectoryInfo.FromDirectoryName("path1"),
-            fs.DirectoryInfo.FromDirectoryName("path2"));
+            fs.DirectoryInfo.New("path1"),
+            fs.DirectoryInfo.New("path2"));
 
         act.Should().Throw<IOException>();
     }

src/Common.Tests/JsonUtilsTest.cs

@@ -2,6 +2,7 @@ using System.IO.Abstractions;
 using System.IO.Abstractions.Extensions;
 using System.IO.Abstractions.TestingHelpers;
 using FluentAssertions;
+using NSubstitute;
 using NUnit.Framework;
 using Serilog;
 using Serilog.Events;
@@ -91,4 +92,14 @@ public class JsonUtilsTest
             .Which.RenderMessage()
             .Should().Match("*does_not_exist*");
     }
+
+    [Test]
+    public void Null_paths_are_ignored()
+    {
+        var result = JsonUtils.GetJsonFilesInDirectories(
+            new IDirectoryInfo?[] {null, null},
+            Substitute.For<ILogger>());
+
+        result.Should().BeEmpty();
+    }
 }

src/Common/Extensions/FileSystemExtensions.cs

@@ -6,6 +6,21 @@ namespace Common.Extensions;
 
 public static class FileSystemExtensions
 {
+    public static void CreateParentDirectory(this IFileInfo f)
+    {
+        var parent = f.Directory;
+        parent?.Create();
+    }
+
+    public static void CreateParentDirectory(this IFileSystem fs, string? path)
+    {
+        var dirName = fs.Path.GetDirectoryName(path);
+        if (dirName is not null)
+        {
+            fs.Directory.CreateDirectory(dirName);
+        }
+    }
+
     public static void MergeDirectory(this IFileSystem fs, IDirectoryInfo targetDir, IDirectoryInfo destDir,
         IConsole? console = null)
     {
@@ -22,7 +37,7 @@ public static class FileSystemExtensions
             if ((dir.Attributes & FileAttributes.ReparsePoint) != 0)
             {
                 var newPath = RelocatePath(dir.FullName, targetDir.FullName, destDir.FullName);
-                fs.Directory.CreateDirectory(fs.Path.GetDirectoryName(newPath));
+                fs.CreateParentDirectory(newPath);
                 console?.Output.WriteLine($" - Symlink:  {dir.FullName} :: TO :: {newPath}");
                 dir.MoveTo(newPath);
                 continue;
@@ -32,7 +47,7 @@ public static class FileSystemExtensions
             foreach (var file in dir.EnumerateFiles())
             {
                 var newPath = RelocatePath(file.FullName, targetDir.FullName, destDir.FullName);
-                fs.Directory.CreateDirectory(fs.Path.GetDirectoryName(newPath));
+                fs.CreateParentDirectory(newPath);
                 console?.Output.WriteLine($" - Moving:   {file.FullName} :: TO :: {newPath}");
                 file.MoveTo(newPath);
             }

src/Common/FileUtilities.cs

@@ -25,7 +25,7 @@ public class FileUtilities : IFileUtilities
 
         foreach (var fileName in Directory.EnumerateFiles(directory))
         {
-            var fileInfo = _fileSystem.FileInfo.FromFileName(fileName);
+            var fileInfo = _fileSystem.FileInfo.New(fileName);
             fileInfo.Attributes = FileAttributes.Normal;
             fileInfo.Delete();
         }

src/Common/JsonUtils.cs

@@ -1,13 +1,14 @@
 using System.IO.Abstractions;
+using Common.Extensions;
 using Serilog;
 
 namespace Common;
 
 public static class JsonUtils
 {
-    public static IEnumerable<IFileInfo> GetJsonFilesInDirectories(IEnumerable<IDirectoryInfo> dirs, ILogger log)
+    public static IEnumerable<IFileInfo> GetJsonFilesInDirectories(IEnumerable<IDirectoryInfo?> dirs, ILogger log)
     {
-        var dirsThatExist = dirs.ToLookup(x => x.Exists);
+        var dirsThatExist = dirs.NotNull().ToLookup(x => x.Exists);
 
         foreach (var dir in dirsThatExist[false])
         {

src/Recyclarr/Command/CreateConfigCommand.cs

@@ -3,6 +3,7 @@ using Autofac;
 using CliFx.Attributes;
 using CliFx.Exceptions;
 using Common;
+using Common.Extensions;
 using JetBrains.Annotations;
 using Serilog;
 using TrashLib.Startup;
@@ -28,7 +29,7 @@ public class CreateConfigCommand : BaseCommand
         var reader = new ResourceDataReader(typeof(Program));
         var ymlData = reader.ReadData("config-template.yml");
         var configFile = AppDataDirectory is not null
-            ? fs.FileInfo.FromFileName(AppDataDirectory)
+            ? fs.FileInfo.New(AppDataDirectory)
             : paths.ConfigPath;
 
         if (configFile.Exists)
@@ -37,7 +38,7 @@ public class CreateConfigCommand : BaseCommand
                                        "delete/move the existing file and run this command again.");
         }
 
-        fs.Directory.CreateDirectory(configFile.DirectoryName);
+        configFile.CreateParentDirectory();
         await using var stream = configFile.CreateText();
         await stream.WriteAsync(ymlData);
         log.Information("Created configuration at: {Path}", configFile);

src/TrashLib.Tests/Cache/ServiceCacheTest.cs

@@ -51,7 +51,7 @@ public class ServiceCacheTest
         const string testJsonPath = "cacheFile.json";
         fs.AddFile(testJsonPath, new MockFileData(testJson));
 
-        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.FromFileName(testJsonPath));
+        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.New(testJsonPath));
 
         var obj = sut.Load<ObjectWithAttribute>();
 
@@ -85,7 +85,7 @@ public class ServiceCacheTest
         [Frozen] ICacheStoragePath storage,
         ServiceCache sut)
     {
-        storage.CalculatePath(default!).ReturnsForAnyArgs(_ => fs.FileInfo.FromFileName($"{ValidObjectName}.json"));
+        storage.CalculatePath(default!).ReturnsForAnyArgs(_ => fs.FileInfo.New($"{ValidObjectName}.json"));
 
         sut.Save(new ObjectWithAttribute {TestValue = "Foo"});
 
@@ -103,7 +103,7 @@ public class ServiceCacheTest
         ServiceCache sut)
     {
         const string testJsonPath = "cacheFile.json";
-        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.FromFileName(testJsonPath));
+        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.New(testJsonPath));
 
         sut.Save(new ObjectWithAttribute {TestValue = "Foo"});
 
@@ -140,10 +140,10 @@ public class ServiceCacheTest
         [Frozen] ICacheStoragePath storage,
         ServiceCache sut)
     {
-        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.FromFileName("Foo.json"));
+        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.New("Foo.json"));
         sut.Save(new ObjectWithAttribute {TestValue = "Foo"});
 
-        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.FromFileName("Bar.json"));
+        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.New("Bar.json"));
         sut.Save(new ObjectWithAttribute {TestValue = "Bar"});
 
         var expectedFiles = new[] {"*Foo.json", "*Bar.json"};
@@ -159,7 +159,7 @@ public class ServiceCacheTest
         [Frozen] ICacheStoragePath storage,
         ServiceCache sut)
     {
-        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.FromFileName("cacheFile.json"));
+        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.New("cacheFile.json"));
         fs.AddFile("cacheFile.json", new MockFileData(""));
 
         Action act = () => sut.Load<ObjectWithAttribute>();
@@ -187,7 +187,7 @@ public class ServiceCacheTest
 ";
 
         fs.AddFile("cacheFile.json", new MockFileData(cacheJson));
-        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.FromFileName("cacheFile.json"));
+        storage.CalculatePath(default!).ReturnsForAnyArgs(fs.FileInfo.New("cacheFile.json"));
 
         var result = sut.Load<CustomFormatCache>();
 

src/TrashLib/Cache/ServiceCache.cs

@@ -1,6 +1,7 @@
 using System.IO.Abstractions;
 using System.Reflection;
 using System.Text.RegularExpressions;
+using Common.Extensions;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Serialization;
 using Serilog;
@@ -55,7 +56,7 @@ public class ServiceCache : IServiceCache
     public void Save<T>(T obj) where T : class
     {
         var path = PathFromAttribute<T>();
-        path.Directory.Create();
+        path.CreateParentDirectory();
 
         var serializer = JsonSerializer.Create(_jsonSettings);
 

src/TrashLib/Config/Settings/SettingsProvider.cs

@@ -1,3 +1,4 @@
+using Common.Extensions;
 using TrashLib.Startup;
 
 namespace TrashLib.Config.Settings;
@@ -36,7 +37,7 @@ public class SettingsProvider : ISettingsProvider
             "# For the settings file reference guide, visit the link to the wiki below:\n" +
             "# https://github.com/recyclarr/recyclarr/wiki/Settings-Reference\n";
 
-        _paths.SettingsPath.Directory.Create();
+        _paths.SettingsPath.CreateParentDirectory();
         using var stream = _paths.SettingsPath.CreateText();
         stream.Write(fileData);
     }

src/TrashLib/Startup/DefaultAppDataSetup.cs

@@ -18,7 +18,7 @@ public class DefaultAppDataSetup
     public IAppPaths CreateAppPaths(string? appDataDirectoryOverride = null, bool forceCreate = true)
     {
         var appDir = GetAppDataDirectory(appDataDirectoryOverride, forceCreate);
-        return new AppPaths(_fs.DirectoryInfo.FromDirectoryName(appDir));
+        return new AppPaths(_fs.DirectoryInfo.New(appDir));
     }
 
     private string GetAppDataDirectory(string? appDataDirectoryOverride, bool forceCreate)