Added build.fsx

Author: JordanMarr

src/FSharp.SystemCommandLine.sln

@@ -9,7 +9,12 @@ Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "TestConsole", "TestConsole\
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{E144B2FD-C858-4294-BBBE-BD388B23F25C}"
 EndProject
-Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Tests", "Tests\Tests.fsproj", "{6C135A08-5956-48AA-83BE-A1443FBE1F54}"
+Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "Tests", "Tests\Tests.fsproj", "{6C135A08-5956-48AA-83BE-A1443FBE1F54}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Build", "Build", "{1B490EE2-1DBB-45FE-94DE-93841BFF96FC}"
+	ProjectSection(SolutionItems) = preProject
+		build.fsx = build.fsx
+	EndProjectSection
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

src/build.fsx

@@ -0,0 +1,21 @@
+#r "nuget: Fun.Build, 1.0.5"
+
+open Fun.Build
+
+let src = __SOURCE_DIRECTORY__
+
+pipeline "CI Build" {
+
+    stage "Build FSharp.SystemCommandLine.sln" {
+        run $"dotnet restore {src}/FSharp.SystemCommandLine/FSharp.SystemCommandLine.fsproj"
+        run $"dotnet build {src}/FSharp.SystemCommandLine/FSharp.SystemCommandLine.fsproj --configuration Release"
+    }
+
+    stage "Run Tests" {
+        run $"dotnet test {src}/Tests/Tests.fsproj --configuration Release"
+    }
+    
+    runIfOnlySpecified false
+}
+
+tryPrintPipelineCommandHelp ()