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KSemenenkoKSemenenko
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feat: optimize static MIME registry for 10.1.1
1 parent 0631286 commit 5331a65

20 files changed

Lines changed: 706 additions & 126 deletions

‎Directory.Build.props‎

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<RepositoryUrl>https://github.com/managedcode/MimeTypes</RepositoryUrl>
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<PackageProjectUrl>https://github.com/managedcode/MimeTypes</PackageProjectUrl>
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<Product>Managed Code - MimeTypes</Product>
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<Version>10.0.13</Version>
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<PackageVersion>10.0.13</PackageVersion>
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<Version>10.1.1</Version>
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<PackageVersion>10.1.1</PackageVersion>
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</PropertyGroup>
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<PropertyGroup Condition="'$(GITHUB_ACTIONS)' == 'true'">
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<ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
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</PropertyGroup>
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<ItemGroup>
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<None Include="$(SolutionDir)\logo.png" Pack="true" Visible="false" PackagePath="\"/>
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<None Include="$(SolutionDir)\README.md" Pack="true" Visible="false" PackagePath="\"/>
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<None Include="$(MSBuildThisFileDirectory)logo.png" Pack="true" Visible="false" PackagePath="\"/>
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<None Include="$(MSBuildThisFileDirectory)README.md" Pack="true" Visible="false" PackagePath="\"/>
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</ItemGroup>
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<ItemGroup>
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<PackageReference Update="DotNet.ReproducibleBuilds" Version="1.2.25">

‎ManagedCode.MimeTypes.Benchmarks/ManagedCode.MimeTypes.Benchmarks.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net10.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<IsPackable>false</IsPackable>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="BenchmarkDotNet" Version="0.15.8" />
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<ProjectReference Include="..\ManagedCode.MimeTypes\ManagedCode.MimeTypes.csproj" />
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</ItemGroup>
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<ItemGroup>
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<None Include="..\ManagedCode.MimeTypes\mimeTypes.json" Link="mimeTypes.json" CopyToOutputDirectory="PreserveNewest" />
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</ItemGroup>
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</Project>

‎ManagedCode.MimeTypes.Benchmarks/MimeLookupBenchmarks.cs‎

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using BenchmarkDotNet.Attributes;
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using BenchmarkDotNet.Jobs;
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using ManagedCode.MimeTypes;
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namespace ManagedCode.MimeTypes.Benchmarks;
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[MemoryDiagnoser]
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[ShortRunJob]
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public class MimeLookupBenchmarks
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{
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private readonly MemoryStream _pdf = new("%PDF-1.7\n"u8.ToArray());
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[GlobalSetup]
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public void Setup()
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{
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MimeHelper.WarmUp();
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}
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[Benchmark(Baseline = true)]
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public string GeneratedProperty() => MimeHelper.PNG;
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[Benchmark]
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public string BareExtensionLookup() => MimeHelper.GetMimeType("png");
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[Benchmark]
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public string FileNameLookup() => MimeHelper.GetMimeType("assets/photo.png");
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[Benchmark]
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public string CompoundExtensionLookup() => MimeHelper.GetMimeType("types/module.d.ts");
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[Benchmark]
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public IReadOnlyCollection<string> CachedReverseLookup() => MimeHelper.GetExtensions("image/jpeg");
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[Benchmark]
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public bool CachedMetadataLookup() => MimeHelper.TryGetMimeTypeInfo("application/pdf", out _);
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[Benchmark]
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public IReadOnlyCollection<MimeTypeInfo> CachedMetadataCatalog() => MimeHelper.GetKnownMimeTypes();
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[Benchmark]
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public MimeTypeCategory CategoryLookup() => MimeHelper.GetMimeCategory("application/ld+json");
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[Benchmark]
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public string ContentSignatureLookup()
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{
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_pdf.Position = 0;
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return MimeHelper.GetMimeTypeByContent(_pdf);
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}
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}

‎ManagedCode.MimeTypes.Benchmarks/Program.cs‎

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using BenchmarkDotNet.Running;
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BenchmarkSwitcher.FromAssembly(typeof(Program).Assembly).Run(args);

‎ManagedCode.MimeTypes.Benchmarks/RegistryInitializationBenchmarks.cs‎

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using System.Collections.Frozen;
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using System.Collections.Immutable;
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using System.Text.Json;
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using BenchmarkDotNet.Attributes;
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using BenchmarkDotNet.Jobs;
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namespace ManagedCode.MimeTypes.Benchmarks;
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[MemoryDiagnoser]
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[ShortRunJob]
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public class RegistryInitializationBenchmarks
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{
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private (string Extension, string Mime)[] _mappings = null!;
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private byte[] _registryJson = null!;
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[Params(1_700)]
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public int MappingCount { get; set; }
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[GlobalSetup]
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public void Setup()
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{
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_mappings = Enumerable.Range(0, MappingCount)
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.Select(static index => ($"ext{index}", $"application/x-type-{index % 600}"))
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.ToArray();
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_registryJson = File.ReadAllBytes(Path.Combine(AppContext.BaseDirectory, "mimeTypes.json"));
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}
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[Benchmark(Baseline = true)]
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public ImmutableDictionary<string, string> LegacyIncrementalImmutableInitialization()
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{
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var mappings = ImmutableDictionary.Create<string, string>(StringComparer.OrdinalIgnoreCase);
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foreach (var mapping in _mappings)
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{
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mappings = mappings.SetItem(mapping.Extension, mapping.Mime);
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}
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return mappings;
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}
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[Benchmark]
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public ImmutableDictionary<string, string> BatchBuilderInitialization()
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{
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var mappings = ImmutableDictionary.CreateBuilder<string, string>(StringComparer.OrdinalIgnoreCase);
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foreach (var mapping in _mappings)
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{
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mappings[mapping.Extension] = mapping.Mime;
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}
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return mappings.ToImmutable();
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}
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[Benchmark]
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public (ImmutableDictionary<string, string> MutableSnapshot, FrozenDictionary<string, string> BuiltInIndex) BatchStaticCachesInitialization()
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{
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var mappings = ImmutableDictionary.CreateBuilder<string, string>(StringComparer.OrdinalIgnoreCase);
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foreach (var mapping in _mappings)
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{
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mappings[mapping.Extension] = mapping.Mime;
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}
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return (mappings.ToImmutable(), mappings.ToFrozenDictionary(StringComparer.OrdinalIgnoreCase));
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}
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[Benchmark]
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public int ParseSourceRegistryJson()
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{
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using var document = JsonDocument.Parse(_registryJson);
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return document.RootElement.GetRawText().Length;
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}
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}

‎ManagedCode.MimeTypes.Generator/AnalyzerReleases.Shipped.md‎

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; Shipped analyzer releases

‎ManagedCode.MimeTypes.Generator/AnalyzerReleases.Unshipped.md‎

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; Unshipped analyzer release
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### New Rules
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Rule ID | Category | Severity | Notes
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--------|----------|----------|-------
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MIME001 | MimeTypes | Error | MIME catalog input was not found
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MIME002 | MimeTypes | Info | MIME catalog loaded successfully
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MIME003 | MimeTypes | Error | MIME source generation failed

‎ManagedCode.MimeTypes.Generator/ManagedCode.MimeTypes.Generator.csproj‎

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<LangVersion>14</LangVersion>
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<IsPackable>false</IsPackable>
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<Nullable>enable</Nullable>
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<TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
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<TargetFramework>netstandard2.0</TargetFramework>
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<EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.12.0" PrivateAssets="all" />
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<PackageReference Include="System.Text.Json" Version="8.0.5" PrivateAssets="all" />
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<PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0">
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<PrivateAssets>all</PrivateAssets>
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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</PackageReference>
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</ItemGroup>
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<ItemGroup>
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<AdditionalFiles Include="AnalyzerReleases.Shipped.md" />
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<AdditionalFiles Include="AnalyzerReleases.Unshipped.md" />
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</ItemGroup>
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<PropertyGroup>
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<GetTargetPathDependsOn>$(GetTargetPathDependsOn);GetDependencyTargetPaths</GetTargetPathDependsOn>
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</PropertyGroup>

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