feat(dotnet): [JsiiOptional] attribute on properties that are optionals + Roslyn Analyzer

packages/jsii-dotnet-analyzers/.gitignore

@@ -0,0 +1,12 @@
+*.js
+*.d.ts
+node_modules/
+.nyc_output/
+coverage/
+
+
+*.nupkg
+bin/
+cli/
+obj/
+*.DotSettings.user

packages/jsii-dotnet-analyzers/Directory.Build.props.t.js

@@ -0,0 +1,9 @@
+const version = require('./package.json').version.replace(/\+.+$/, ''); // omit "+build" suffix
+
+process.stdout.write(`<Project>
+  <PropertyGroup>
+    <JsiiVersion>${version}</JsiiVersion>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+</Project>
+`);

packages/jsii-dotnet-analyzers/LICENSE

@@ -0,0 +1,202 @@
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packages/jsii-dotnet-analyzers/NuGet.Metadata.props.t.js

@@ -0,0 +1,19 @@
+const package = require('./package.json');
+
+process.stdout.write(`<Project>
+  <PropertyGroup>
+    <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
+    <IncludeSymbols>True</IncludeSymbols>
+    <IncludeSource>True</IncludeSource>
+    <PackageOutputPath>..\\..\\bin\\$(Configuration)\\NuGet\\</PackageOutputPath>
+    <PackageVersion>$(JsiiVersion)</PackageVersion>
+    <Description>${package.description}</Description>
+    <ProjectUrl>${package.homepage}</ProjectUrl>
+    <LicenseUrl>https://spdx.org/licenses/${package.license}.html</LicenseUrl>
+    <Authors>${package.author.name}</Authors>
+    <Company>${package.author.name}</Company>
+    <AssemblyOriginatorKeyFile>key.snk</AssemblyOriginatorKeyFile>
+    <SignAssembly Condition="Exists('$(AssemblyOriginatorKeyFile)')">True</SignAssembly>
+  </PropertyGroup>
+</Project>
+`);

packages/jsii-dotnet-analyzers/build.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -euo pipefail
+
+dotnet build --force -c Release ./src/Amazon.JSII.Analyzers
+
+cp -f ./bin/Release/NuGet/*.nupkg .

packages/jsii-dotnet-analyzers/generate.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+set -euo pipefail
+src="./src"
+
+# Generate metadata files based on package.json.
+/usr/bin/env node ./Directory.Build.props.t.js > ${src}/Directory.Build.props
+/usr/bin/env node ./NuGet.Metadata.props.t.js > ${src}/NuGet.Metadata.props

packages/jsii-dotnet-analyzers/lib/index.ts

@@ -0,0 +1,3 @@
+import path = require('path');
+
+export const repository = path.resolve(__dirname, path.join('..', 'bin', 'Release', 'NuGet'));