Update Pulumi projects to net6.0

.NET Core 3.1 is out of support on December 13th:
https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core

We've already stopped testing on .NET Core 3.1, and program gen has been targeting only 6.0 for a while now as well.

This updates the core porjects to only 6.0 as well.

We'll still want to do pulumi/pulumi#11543 in
pu/pu to update sdkgen.

CHANGELOG_PENDING.md

@@ -3,4 +3,7 @@
 - [auto] Adds SkipInstallDependencies option for Remote Workspaces
   [#64](https://github.com/pulumi/pulumi-dotnet/pull/64)
 
+- [sdk] Drop support for .NET Core 3.1.
+  [#10](https://github.com/pulumi/pulumi-dotnet/pull/10)
+
 ### Bug Fixes

build/Program.fs

@@ -8,11 +8,11 @@ open CliWrap
 open CliWrap.Buffered
 
 /// Recursively tries to find the parent of a file starting from a directory
-let rec findParent (directory: string) (fileToFind: string) = 
+let rec findParent (directory: string) (fileToFind: string) =
     let path = if Directory.Exists(directory) then directory else Directory.GetParent(directory).FullName
     let files = Directory.GetFiles(path)
-    if files.Any(fun file -> Path.GetFileName(file).ToLower() = fileToFind.ToLower()) 
-    then path 
+    if files.Any(fun file -> Path.GetFileName(file).ToLower() = fileToFind.ToLower())
+    then path
     else findParent (DirectoryInfo(path).Parent.FullName) fileToFind
 
 let repositoryRoot = findParent __SOURCE_DIRECTORY__ "README.md";
@@ -28,13 +28,13 @@ let pulumiLanguageDotnet = Path.Combine(repositoryRoot, "pulumi-language-dotnet"
 
 /// Runs `dotnet clean` command against the solution file,
 /// then proceeds to delete the `bin` and `obj` directory of each project in the solution
-let cleanSdk() = 
+let cleanSdk() =
     let cmd = Cli.Wrap("dotnet").WithArguments("clean").WithWorkingDirectory(sdk)
     let output = cmd.ExecuteAsync().GetAwaiter().GetResult()
     if output.ExitCode <> 0 then
         failwith "Clean failed"
 
-    let projects = [ 
+    let projects = [
         pulumiSdk
         pulumiSdkTests
         pulumiAutomationSdk
@@ -47,7 +47,7 @@ let cleanSdk() =
         Shell.deleteDir (Path.Combine(project, "obj"))
 
 /// Runs `dotnet restore` against the solution file without using cache
-let restoreSdk() = 
+let restoreSdk() =
     printfn "Restoring Pulumi SDK packages"
     if Shell.Exec("dotnet", "restore --no-cache", sdk) <> 0
     then failwith "restore failed"
@@ -60,15 +60,15 @@ let integrationTestNames() =
     let output = cmd.ExecuteBufferedAsync().GetAwaiter().GetResult()
     if output.ExitCode <> 0 then
         failwith $"Failed to list go tests from {integrationTests}"
-    
+
     output.StandardOutput.Split("\n")
     |> Array.filter (fun line -> line.StartsWith "Test")
 
 let listIntegrationTests() =
     for testName in integrationTestNames() do
         printfn $"{testName}"
 
-let buildSdk() = 
+let buildSdk() =
     cleanSdk()
     restoreSdk()
     printfn "Building Pulumi SDK"
@@ -89,7 +89,7 @@ let publishSdks() =
         pulumiAutomationSdk
         pulumiFSharp
     ]
-    
+
     match publishResults with
     | Error errorMsg -> printfn $"{errorMsg}"
     | Ok results ->
@@ -108,35 +108,35 @@ let publishSdks() =
                 results
                 |> List.where (fun result -> result.HasErrored())
                 |> List.map (fun result -> result.ProjectName())
-            
+
             failwith $"Some nuget packages were not published: {failedProjectsAtPublishing}"
 
-let cleanLanguagePlugin() = 
+let cleanLanguagePlugin() =
     let plugin = Path.Combine(pulumiLanguageDotnet, "pulumi-language-dotnet")
     if File.Exists plugin then File.Delete plugin
 
-let buildLanguagePlugin() = 
+let buildLanguagePlugin() =
     cleanLanguagePlugin()
     printfn "Building pulumi-language-dotnet Plugin"
     if Shell.Exec("go", "build", pulumiLanguageDotnet) <> 0
     then failwith "Building pulumi-language-dotnet failed"
     let output = Path.Combine(pulumiLanguageDotnet, "pulumi-language-dotnet")
     printfn $"Built binary {output}"
 
-let testLanguagePlugin() = 
+let testLanguagePlugin() =
     cleanLanguagePlugin()
     printfn "Testing pulumi-language-dotnet Plugin"
     if Shell.Exec("go", "test", Path.Combine(repositoryRoot, "pulumi-language-dotnet")) <> 0
     then failwith "Testing pulumi-language-dotnet failed"
 
-let testPulumiSdk() = 
+let testPulumiSdk() =
     cleanSdk()
     restoreSdk()
     printfn "Testing Pulumi SDK"
     if Shell.Exec("dotnet", "test --configuration Release", pulumiSdkTests) <> 0
     then failwith "tests failed"
 
-let testPulumiAutomationSdk() = 
+let testPulumiAutomationSdk() =
     cleanSdk()
     restoreSdk()
     printfn "Testing Pulumi Automation SDK"
@@ -151,15 +151,15 @@ let syncProtoFiles() = GitSync.repository {
             sourcePath = [ "proto"; "pulumi" ]
             destinationPath = [ "proto"; "pulumi" ]
         }
-        
+
         GitSync.folder {
             sourcePath = [ "proto"; "google"; "protobuf" ]
             destinationPath = [ "proto"; "google"; "protobuf" ]
         }
     ]
 }
 
-let runSpecificIntegrationTest(testName: string) = 
+let runSpecificIntegrationTest(testName: string) =
     buildLanguagePlugin()
     cleanSdk()
     if Shell.Exec("go", $"test -run=^{testName}$", Path.Combine(repositoryRoot, "integration_tests")) <> 0
@@ -174,7 +174,7 @@ let runAllIntegrationTests() =
         then failwith $"Integration test '{testName}' failed"
 
 [<EntryPoint>]
-let main(args: string[]) : int = 
+let main(args: string[]) : int =
     match args with
     | [| "clean-sdk" |] -> cleanSdk()
     | [| "build-sdk" |] -> buildSdk()

sdk/Pulumi.Automation/Commands/LocalPulumiCmd.cs

@@ -143,6 +143,7 @@ public EventLogFile(string command)
             public void Dispose()
             {
                 var dir = Path.GetDirectoryName(this.FilePath);
+                System.Diagnostics.Debug.Assert(dir != null, "FilePath had no directory name");
                 try
                 {
                     Directory.Delete(dir, recursive: true);

sdk/Pulumi.Automation/Pulumi.Automation.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Pulumi</Authors>

sdk/Pulumi.Automation/Serialization/Json/StackSettingsConfigValueJsonConverter.cs

@@ -15,7 +15,7 @@ public override StackSettingsConfigValue Read(ref Utf8JsonReader reader, Type ty
             // check if plain string
             if (element.ValueKind == JsonValueKind.String)
             {
-                var value = element.GetString();
+                var value = element.GetString()!;
                 return new StackSettingsConfigValue(value, false);
             }
 
@@ -33,8 +33,8 @@ public override StackSettingsConfigValue Read(ref Utf8JsonReader reader, Type ty
                         {
                             throw new JsonException($"Unable to deserialize [{typeToConvert.FullName}] as a secure string. Expecting a string secret.");
                         }
-                        
-                        return new StackSettingsConfigValue(secureValue.GetString(), true);
+
+                        return new StackSettingsConfigValue(secureValue.GetString()!, true);
                     }
                 }
             }

sdk/Pulumi.Automation/Serialization/Json/StringToEnumJsonConverter.cs

@@ -14,7 +14,7 @@ internal class StringToEnumJsonConverter<TEnum, TConverter> : JsonConverter<TEnu
 
         public override TEnum Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            return _converter.Convert(reader.GetString());
+            return _converter.Convert(reader.GetString()!);
         }
 
         public override void Write(Utf8JsonWriter writer, TEnum value, JsonSerializerOptions options)

sdk/Pulumi.Automation/Serialization/Json/SystemObjectJsonConverter.cs

@@ -38,12 +38,12 @@ public override object Read(ref Utf8JsonReader reader, Type typeToConvert, JsonS
                     return datetime;
                 }
 
-                return reader.GetString();
+                return reader.GetString()!;
             }
 
             if (reader.TokenType == JsonTokenType.StartArray)
             {
-                return JsonSerializer.Deserialize<object[]>(ref reader, options);
+                return JsonSerializer.Deserialize<object[]>(ref reader, options)!;
             }
 
             if (reader.TokenType == JsonTokenType.StartObject)
@@ -61,7 +61,7 @@ public override object Read(ref Utf8JsonReader reader, Type typeToConvert, JsonS
                         throw new JsonException("Unable to retrieve property name.");
 
                     reader.Read();
-                    dictionary[propertyName] = JsonSerializer.Deserialize<object>(ref reader, options);
+                    dictionary[propertyName] = JsonSerializer.Deserialize<object>(ref reader, options)!;
 
                     reader.Read();
                 }

sdk/Pulumi.Automation/Serialization/LocalSerializer.cs

@@ -27,7 +27,7 @@ public LocalSerializer()
         }
 
         public T DeserializeJson<T>(string content)
-            => JsonSerializer.Deserialize<T>(content, this._jsonOptions);
+            => JsonSerializer.Deserialize<T>(content, this._jsonOptions)!;
 
         public T DeserializeYaml<T>(string content)
             where T : class
@@ -45,7 +45,7 @@ public static JsonSerializerOptions BuildJsonSerializerOptions()
             var options = new JsonSerializerOptions
             {
                 AllowTrailingCommas = true,
-                IgnoreNullValues = true,
+                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
                 PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
             };
 

sdk/Pulumi.Automation/WorkspaceStack.cs

@@ -563,7 +563,7 @@ void OnPreviewEvent(EngineEvent @event)
                 return ImmutableList<UpdateSummary>.Empty;
 
             var jsonOptions = LocalSerializer.BuildJsonSerializerOptions();
-            var list = JsonSerializer.Deserialize<List<UpdateSummary>>(result.StandardOutput, jsonOptions);
+            var list = JsonSerializer.Deserialize<List<UpdateSummary>>(result.StandardOutput, jsonOptions)!;
             return list.ToImmutableList();
         }
 
@@ -705,7 +705,7 @@ private class InlineLanguageHost : IAsyncDisposable
                     try
                     {
                         var serverFeatures = this._host.Services.GetRequiredService<IServer>().Features;
-                        var addresses = serverFeatures.Get<IServerAddressesFeature>().Addresses.ToList();
+                        var addresses = serverFeatures.Get<IServerAddressesFeature>()!.Addresses.ToList();
                         Debug.Assert(addresses.Count == 1, "Server should only be listening on one address");
                         var uri = new Uri(addresses[0]);
                         this._portTcs.TrySetResult(uri.Port);

sdk/Pulumi.FSharp/Pulumi.FSharp.fsproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Pulumi</Authors>
     <Company>Pulumi Corp.</Company>

sdk/Pulumi/Core/Output.cs

@@ -3,7 +3,6 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.Immutable;
-using System.Diagnostics;
 using System.Linq;
 using System.Text.Json;
 using System.Text.Json.Serialization;
@@ -185,8 +184,8 @@ internal static Output<ImmutableArray<T>> Concat<T>(Output<ImmutableArray<T>> va
             => Tuple(values1, values2).Apply(tuple => tuple.Item1.AddRange(tuple.Item2));
 
         /// <summary>
-        /// Uses <see cref="System.Text.Json.JsonSerializer.SerializeAsync{T}"/> to serialize the given <see
-        /// cref="Output{T}"/> value into a JSON string.
+        /// Uses <see cref="System.Text.Json.JsonSerializer.SerializeAsync{T}(System.IO.Stream, T, JsonSerializerOptions?, System.Threading.CancellationToken)"/>
+        /// to serialize the given <see cref="Output{T}"/> value into a JSON string.
         /// </summary>
         public static Output<string> JsonSerialize<T>(Output<T> value, System.Text.Json.JsonSerializerOptions? options = null)
         {
@@ -206,26 +205,9 @@ async Task<OutputData<string>> GetData()
                 // This needs to handle nested potentially secret and unknown Output values, we do this by
                 // hooking options to handle any seen Output<T> values.
 
-                // TODO: This can be simplified in net6.0 to just new System.Text.Json.JsonSerializerOptions(options);
-                var internalOptions = new System.Text.Json.JsonSerializerOptions();
-                internalOptions.AllowTrailingCommas = options?.AllowTrailingCommas ?? internalOptions.AllowTrailingCommas;
-                if (options != null)
-                {
-                    foreach(var converter in options.Converters)
-                    {
-                        internalOptions.Converters.Add(converter);
-                    }
-                }
-                internalOptions.DefaultBufferSize = options?.DefaultBufferSize ?? internalOptions.DefaultBufferSize;
-                internalOptions.DictionaryKeyPolicy = options?.DictionaryKeyPolicy ?? internalOptions.DictionaryKeyPolicy;
-                internalOptions.Encoder = options?.Encoder ?? internalOptions.Encoder;
-                internalOptions.IgnoreNullValues = options?.IgnoreNullValues ?? internalOptions.IgnoreNullValues;
-                internalOptions.IgnoreReadOnlyProperties = options?.IgnoreReadOnlyProperties ?? internalOptions.IgnoreReadOnlyProperties;
-                internalOptions.MaxDepth = options?.MaxDepth ?? internalOptions.MaxDepth;
-                internalOptions.PropertyNameCaseInsensitive = options?.PropertyNameCaseInsensitive ?? internalOptions.PropertyNameCaseInsensitive;
-                internalOptions.PropertyNamingPolicy = options?.PropertyNamingPolicy ?? internalOptions.PropertyNamingPolicy;
-                internalOptions.ReadCommentHandling = options?.ReadCommentHandling ?? internalOptions.ReadCommentHandling;
-                internalOptions.WriteIndented = options?.WriteIndented ?? internalOptions.WriteIndented;
+                var internalOptions = options == null ?
+                    new System.Text.Json.JsonSerializerOptions() :
+                    new System.Text.Json.JsonSerializerOptions(options);
 
                 // Add the magic converter to allow us to do nested outputs
                 var outputConverter = new OutputJsonConverter();
@@ -285,7 +267,8 @@ public sealed class Output<T> : IOutput
 
             if (Deployment.TryGetInternalInstance(out var instance))
             {
-                instance.Runner.RegisterTask(TypeNameHelper.GetTypeDisplayName(GetType(), false), dataTask);
+                var description = GetType().ToString();
+                instance.Runner.RegisterTask(description, dataTask);
             }
         }
 

sdk/Pulumi/Deployment/Deployment_Config.cs

@@ -86,7 +86,7 @@ private static ImmutableHashSet<string> ParseConfigSecretKeys()
                 var envObject = JsonDocument.Parse(envConfigSecretKeys);
                 foreach (var element in envObject.RootElement.EnumerateArray())
                 {
-                    parsedConfigSecretKeys.Add(element.GetString());
+                    parsedConfigSecretKeys.Add(element.ToString());
                 }
             }
 

sdk/Pulumi/Pulumi.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Nullable>enable</Nullable>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Pulumi</Authors>