90 lines
2.7 KiB
FSharp
90 lines
2.7 KiB
FSharp
open System
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open System.IO
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open System.Reflection
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open System.Runtime.InteropServices
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open Fli
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type MutationCase = { TestName: string; Patch: string }
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let ensureBuilt projectPath =
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cli {
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Exec "dotnet"
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Arguments [ "build"; projectPath ]
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Output(new StreamWriter(Console.OpenStandardOutput()))
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}
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|> Command.execute
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|> Output.throwIfErrored
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|> ignore
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let getAssemblyPath projectPath =
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cli {
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Exec "dotnet"
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Arguments [ "msbuild"; projectPath; "--getProperty:TargetPath" ]
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}
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|> Command.execute
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|> Output.toText
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let getMetadataLoadContext (assemblyPath: string) =
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// This allows us to inspect assemblies regardless of the platform that they were built for
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// https://learn.microsoft.com/en-us/dotnet/standard/assembly/inspect-contents-using-metadataloadcontext
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let assemblyDir = Path.GetDirectoryName assemblyPath
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let pathAssemblyResolver =
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[ yield assemblyPath
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yield! Directory.EnumerateFiles(assemblyDir, "*.dll")
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yield! Directory.EnumerateFiles(assemblyDir, "*.exe")
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yield! Directory.GetFiles(RuntimeEnvironment.GetRuntimeDirectory(), "*.dll") ]
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|> PathAssemblyResolver
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new MetadataLoadContext(pathAssemblyResolver, typeof<obj>.Assembly.GetName().Name)
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let getMutationCases projectPath =
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ensureBuilt projectPath
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let assemblyPath = getAssemblyPath projectPath
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use metadataLoadContext = getMetadataLoadContext assemblyPath
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let assemblyTypes =
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assemblyPath |> metadataLoadContext.LoadFromAssemblyPath |> _.GetTypes()
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let assemblyMethods =
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assemblyTypes
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|> Seq.collect _.GetMethods(BindingFlags.Public ||| BindingFlags.Instance)
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assemblyMethods
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|> Seq.collect (fun m ->
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m.GetCustomAttributesData()
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|> Seq.choose (fun attr ->
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match attr.AttributeType.FullName with
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| "Mutannot.MutationCaseAttribute" ->
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Some
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{ TestName = $"{m.DeclaringType.FullName}.{m.Name}"
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Patch = attr.ConstructorArguments[0].Value :?> string }
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| _ -> None))
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|> Seq.toList
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[<EntryPoint>]
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let main argv =
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if argv.Length <> 1 then
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eprintfn "Usage: mutannot <path/to/project.csproj|fsproj>"
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exit 1
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let projectPath = argv[0]
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let gitState =
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cli {
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Exec "git"
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Arguments [ "status"; "--porcelain" ]
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}
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|> Command.execute
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|> Output.throwIfErrored
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if gitState.Text <> None then
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eprintfn "Uncommitted changes. Refusing to run."
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exit 2
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for mutationCase in getMutationCases projectPath do
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printfn "%s" <| mutationCase.ToString()
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0
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