Create an API layer for external process

FSharpLint.sln

@@ -112,6 +112,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "rules", "rules", "{AEBB56D7
 		docs\content\how-tos\rules\FL0082.md = docs\content\how-tos\rules\FL0082.md
 	EndProjectSection
 EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "FSharpLint.Client", "src\FSharpLint.Client\FSharpLint.Client.fsproj", "{0452CA18-2599-4D8B-8A48-01A8B78F3984}"
+EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "FSharpLint.Client.Tests", "tests\FSharpLint.Client.Tests\FSharpLint.Client.Tests.fsproj", "{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -194,6 +198,30 @@ Global
 		{B4A92AC6-F74A-4709-B2F7-6C5BABBFDEB0}.Release|x64.Build.0 = Release|Any CPU
 		{B4A92AC6-F74A-4709-B2F7-6C5BABBFDEB0}.Release|x86.ActiveCfg = Release|Any CPU
 		{B4A92AC6-F74A-4709-B2F7-6C5BABBFDEB0}.Release|x86.Build.0 = Release|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Debug|x64.Build.0 = Debug|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Debug|x86.Build.0 = Debug|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Release|x64.ActiveCfg = Release|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Release|x64.Build.0 = Release|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Release|x86.ActiveCfg = Release|Any CPU
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984}.Release|x86.Build.0 = Release|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Debug|x64.Build.0 = Debug|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Debug|x86.Build.0 = Debug|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Release|Any CPU.Build.0 = Release|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Release|x64.ActiveCfg = Release|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Release|x64.Build.0 = Release|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Release|x86.ActiveCfg = Release|Any CPU
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -207,6 +235,8 @@ Global
 		{B4A92AC6-F74A-4709-B2F7-6C5BABBFDEB0} = {1CD44876-BCDC-4C93-9DC2-C45244BD62AE}
 		{E1E03FFE-30DF-4522-83DA-9089147B431E} = {270E691D-ECA1-4BC5-B851-C5431A64E9FA}
 		{AEBB56D7-30B4-40D7-B065-54B8BE960298} = {E1E03FFE-30DF-4522-83DA-9089147B431E}
+		{0452CA18-2599-4D8B-8A48-01A8B78F3984} = {40C2798B-7078-4D4F-BD37-195240CB827B}
+		{72A7ED5D-8279-4375-B5EA-EFF9C33DD280} = {1CD44876-BCDC-4C93-9DC2-C45244BD62AE}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {B54B4B7D-F019-48A3-BB5B-635B68FE41C3}

paket.dependencies

@@ -19,6 +19,8 @@ nuget NUnit3TestAdapter
 nuget Microsoft.NET.Test.Sdk 17.7.2
 nuget Newtonsoft.Json
 nuget Microsoft.Build.Locator
+nuget SemanticVersioning 2.0.2
+nuget StreamJsonRpc ~> 2.8.28
 
 # don't expose as a package reference
 nuget Microsoft.SourceLink.GitHub copy_local: true

paket.lock

@@ -80,7 +80,17 @@ NUGET
       Ionide.ProjInfo.Sln (>= 0.61.3) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= net6.0))
       Newtonsoft.Json (>= 13.0.1) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= net6.0))
     Ionide.ProjInfo.Sln (0.61.3)
-    Microsoft.Bcl.AsyncInterfaces (8.0) - restriction: || (&& (== net6.0) (>= net462)) (&& (== net6.0) (< netstandard2.1)) (== netstandard2.0)
+    MessagePack (2.5.140)
+      MessagePack.Annotations (>= 2.5.140)
+      Microsoft.Bcl.AsyncInterfaces (>= 6.0) - restriction: == netstandard2.0
+      Microsoft.NET.StringTools (>= 17.6.3)
+      System.Collections.Immutable (>= 6.0) - restriction: == netstandard2.0
+      System.Reflection.Emit (>= 4.7) - restriction: == netstandard2.0
+      System.Reflection.Emit.Lightweight (>= 4.7) - restriction: == netstandard2.0
+      System.Runtime.CompilerServices.Unsafe (>= 6.0)
+      System.Threading.Tasks.Extensions (>= 4.5.4) - restriction: == netstandard2.0
+    MessagePack.Annotations (2.5.140)
+    Microsoft.Bcl.AsyncInterfaces (8.0)
       System.Threading.Tasks.Extensions (>= 4.5.4) - restriction: || (&& (== net6.0) (>= net462)) (&& (== net6.0) (< netstandard2.1)) (== netstandard2.0)
     Microsoft.Build (16.11) - copy_local: false
       Microsoft.Build.Framework (>= 16.11) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= net472)) (&& (== netstandard2.0) (>= net5.0))
@@ -188,6 +198,15 @@ NUGET
     Microsoft.TestPlatform.TestHost (17.8) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= netcoreapp3.1))
       Microsoft.TestPlatform.ObjectModel (>= 17.8) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= netcoreapp3.1))
       Newtonsoft.Json (>= 13.0.1) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= netcoreapp3.1))
+    Microsoft.VisualStudio.Threading (17.8.14)
+      Microsoft.Bcl.AsyncInterfaces (>= 7.0)
+      Microsoft.VisualStudio.Threading.Analyzers (>= 17.8.14)
+      Microsoft.VisualStudio.Validation (>= 17.8.8)
+      Microsoft.Win32.Registry (>= 5.0)
+      System.Runtime.CompilerServices.Unsafe (>= 6.0) - restriction: || (&& (== net6.0) (>= net472)) (== netstandard2.0)
+      System.Threading.Tasks.Extensions (>= 4.5.4)
+    Microsoft.VisualStudio.Threading.Analyzers (17.8.14)
+    Microsoft.VisualStudio.Validation (17.8.8)
     Microsoft.Win32.Primitives (4.3)
       Microsoft.NETCore.Platforms (>= 1.1)
       Microsoft.NETCore.Targets (>= 1.1)
@@ -197,6 +216,12 @@ NUGET
       System.Memory (>= 4.5.4) - restriction: || (&& (== net6.0) (< netcoreapp2.0)) (&& (== net6.0) (< netcoreapp2.1)) (&& (== net6.0) (>= uap10.1)) (== netstandard2.0)
       System.Security.AccessControl (>= 5.0)
       System.Security.Principal.Windows (>= 5.0)
+    Nerdbank.Streams (2.10.72)
+      Microsoft.Bcl.AsyncInterfaces (>= 7.0)
+      Microsoft.VisualStudio.Threading (>= 17.6.40)
+      Microsoft.VisualStudio.Validation (>= 17.6.11)
+      System.IO.Pipelines (>= 7.0)
+      System.Runtime.CompilerServices.Unsafe (>= 6.0)
     NETStandard.Library (2.0.3)
       Microsoft.NETCore.Platforms (>= 1.1)
     Newtonsoft.Json (13.0.3)
@@ -249,7 +274,22 @@ NUGET
     runtime.ubuntu.16.04-x64.runtime.native.System.Security.Cryptography.OpenSsl (4.3.3)
     runtime.ubuntu.16.10-x64.runtime.native.System.Security.Cryptography.OpenSsl (4.3.3)
     runtime.ubuntu.18.04-x64.runtime.native.System.Security.Cryptography.OpenSsl (4.3.3)
-    SemanticVersioning (2.0.2) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= net6.0))
+    SemanticVersioning (2.0.2)
+    StreamJsonRpc (2.8.28)
+      MessagePack (>= 2.2.85)
+      Microsoft.Bcl.AsyncInterfaces (>= 5.0)
+      Microsoft.VisualStudio.Threading (>= 16.9.60)
+      Nerdbank.Streams (>= 2.6.81)
+      Newtonsoft.Json (>= 12.0.2)
+      System.Collections.Immutable (>= 5.0)
+      System.Diagnostics.DiagnosticSource (>= 5.0.1)
+      System.IO.Pipelines (>= 5.0.1)
+      System.Memory (>= 4.5.4)
+      System.Net.Http (>= 4.3.4)
+      System.Net.WebSockets (>= 4.3)
+      System.Reflection.Emit (>= 4.7)
+      System.Threading.Tasks.Dataflow (>= 5.0)
+      System.Threading.Tasks.Extensions (>= 4.5.4)
     System.Buffers (4.5.1)
     System.CodeDom (8.0) - copy_local: false
     System.Collections (4.3)
@@ -352,6 +392,10 @@ NUGET
       System.Threading.Tasks (>= 4.3)
     System.IO.FileSystem.Primitives (4.3)
       System.Runtime (>= 4.3)
+    System.IO.Pipelines (8.0)
+      System.Buffers (>= 4.5.1) - restriction: || (&& (== net6.0) (>= net462)) (== netstandard2.0)
+      System.Memory (>= 4.5.5) - restriction: || (&& (== net6.0) (>= net462)) (== netstandard2.0)
+      System.Threading.Tasks.Extensions (>= 4.5.4) - restriction: || (&& (== net6.0) (>= net462)) (== netstandard2.0)
     System.Linq (4.3)
       System.Collections (>= 4.3)
       System.Diagnostics.Debug (>= 4.3)
@@ -471,6 +515,11 @@ NUGET
       System.Resources.ResourceManager (>= 4.3)
       System.Runtime (>= 4.3)
       System.Runtime.Extensions (>= 4.3)
+    System.Net.WebSockets (4.3)
+      Microsoft.Win32.Primitives (>= 4.3)
+      System.Resources.ResourceManager (>= 4.3)
+      System.Runtime (>= 4.3)
+      System.Threading.Tasks (>= 4.3)
     System.Numerics.Vectors (4.5) - restriction: == netstandard2.0
     System.ObjectModel (4.3)
       System.Collections (>= 4.3)
@@ -569,7 +618,6 @@ NUGET
       System.Security.Cryptography.Primitives (>= 4.3)
       System.Text.Encoding (>= 4.3)
     System.Security.Cryptography.Cng (5.0) - copy_local: false
-      System.Formats.Asn1 (>= 5.0) - restriction: || (== net6.0) (&& (== netstandard2.0) (>= netcoreapp3.0))
     System.Security.Cryptography.Csp (4.3)
       Microsoft.NETCore.Platforms (>= 1.1)
       System.IO (>= 4.3)
@@ -675,7 +723,7 @@ NUGET
       Microsoft.NETCore.Targets (>= 1.1)
       System.Runtime (>= 4.3)
     System.Threading.Tasks.Dataflow (8.0) - copy_local: false
-    System.Threading.Tasks.Extensions (4.5.4) - restriction: || (&& (== net6.0) (>= net472)) (&& (== net6.0) (< netcoreapp3.1)) (&& (== net6.0) (>= uap10.1)) (== netstandard2.0)
+    System.Threading.Tasks.Extensions (4.5.4)
       System.Runtime.CompilerServices.Unsafe (>= 4.5.3) - restriction: || (&& (== net6.0) (>= net461)) (&& (== net6.0) (< netcoreapp2.1)) (&& (== net6.0) (< netstandard1.0)) (&& (== net6.0) (< netstandard2.0)) (&& (== net6.0) (>= wp8)) (== netstandard2.0)
     System.Threading.Tasks.Parallel (4.3)
       System.Collections.Concurrent (>= 4.3)

src/FSharpLint.Client/Contracts.fs

@@ -0,0 +1,31 @@
+module FSharpLint.Client.Contracts
+
+open System
+open System.Threading
+open System.Threading.Tasks
+
+[<RequireQualifiedAccess>]
+module Methods =
+    [<Literal>]
+    let Version = "fsharplint/version"
+
+type VersionRequest =
+    {
+        FilePath: string
+    }
+
+type FSharpLintResult =
+    | Content of string
+
+type FSharpLintResponse = { 
+    Code: int
+    FilePath: string
+    Result : FSharpLintResult
+}
+
+type IFSharpLintService =
+    interface
+        inherit IDisposable
+
+        abstract member VersionAsync: VersionRequest * ?cancellationToken: CancellationToken -> Task<FSharpLintResponse>
+    end

src/FSharpLint.Client/Contracts.fsi

@@ -0,0 +1,28 @@
+module FSharpLint.Client.Contracts
+
+open System.Threading
+open System.Threading.Tasks
+
+module Methods =
+
+    [<Literal>]
+    val Version: string = "fsharplint/version"
+
+type VersionRequest =
+    {
+        FilePath: string
+    }
+
+type FSharpLintResult =
+    | Content of string
+
+type FSharpLintResponse = { 
+    Code: int
+    FilePath: string
+    Result : FSharpLintResult
+}
+
+type IFSharpLintService =
+    inherit System.IDisposable
+
+    abstract VersionAsync: VersionRequest * ?cancellationToken: CancellationToken -> Task<FSharpLintResponse>

src/FSharpLint.Client/FSharpLint.Client.fsproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <IsPackable>true</IsPackable>
+    <RootNamespace>FSharpLint.Client</RootNamespace>
+    <EnableDefaultItems>false</EnableDefaultItems>
+    <Title>FSharpLint.Client</Title>
+    <Description>Companion library to format using FSharpLint tool.</Description>
+    <PackageTags>F#;fsharp;lint;FSharpLint;fslint;api</PackageTags>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="Contracts.fsi" />
+    <Compile Include="Contracts.fs" />
+    <Compile Include="LSPFSharpLintServiceTypes.fsi" />
+    <Compile Include="LSPFSharpLintServiceTypes.fs" />
+    <Compile Include="FSharpLintToolLocator.fsi" />
+    <Compile Include="FSharpLintToolLocator.fs" />
+    <Compile Include="LSPFSharpLintService.fsi" />
+    <Compile Include="LSPFSharpLintService.fs" />
+  </ItemGroup>
+  <Import Project="..\..\.paket\Paket.Restore.targets" />
+</Project>