baronfel

Target input/output inference in MSBuild today

MSBuild has mature incremental execution from explicit target inputs and outputs, but almost no automatic discovery of those inputs and outputs. It is best described as shallow, declarative inference, not dependency inference comparable to Ninja or Bazel.

Capability	Current support
Infer a target's inputs/outputs by inspecting its tasks	No
Skip a target using declared Inputs/Outputs	Yes, using file timestamps
Partially execute a target for changed items	Yes, when a one-to-one item transform can be recognized
Reconstruct items/properties when a target is skipped	Yes, when derivable from project XML

baronfel

NativeAOT CLI size and startup analysis for dotnet/sdk#55497

PR: dotnet/sdk#55497 — Enable MSBuild-backed commands in the Native AOT CLI

Test setup

• OS/RID: Windows x64 (win-x64)
• Configuration: Release
• PR base: 2e5fa46b2d150671d77cf313930d4de322907118
• PR head: 3df559618a8d1776b58dd71c3b4c2ab424b46ab8

baronfel

# This workflow will build a .NET project
# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-net

name: .NET

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

baronfel

.NET Install Script URL Lookup Scheme

This document summarizes how the dotnet-install.sh script determines the download URLs for .NET SDKs and runtimes.

---

1. Primary Lookup: aka.ms Short URL Redirection

• When Used:
  This is the preferred and first method for obtaining download URLs, especially for the latest releases and common channels (like LTS/STS).

baronfel

.NET SDK Acquisition Guide for Visual Studio Tooling

This document explains how .NET tooling within Visual Studio can help users download and install specific versions of the .NET SDK by integrating with the .NET host infrastructure and release management systems.

Overview

The process consists of three main steps:

1. Locate and evaluate global.json status in the workspace using hostfxr native library
2. Locate and evaluate available .NET SDK installers using the Microsoft.Deployment.DotNet.Releases library
3. Apply global.json constraints to installer information to determine the best SDK for download

baronfel

#r "FSharp.Compiler.Service.dll"

open FSharp.Compiler.CodeAnalysis
open FSharp.Compiler.Text
open FSharp.Compiler.Syntax

module Helpers =
    type LetPrivateWalker() =
        inherit SyntaxVisitorBase<range>()

baronfel

using System.CommandLine;
using System.CommandLine.Parsing;
using System.Text;

var fileContent = new Argument<Stream?>("file")
{
    Arity = ArgumentArity.ZeroOrOne,
    DefaultValueFactory = OpenStream,
    Description = "The file to read from. Defaults to stdin if provided",
    CustomParser = OpenStream,

baronfel

#r "nuget: MSBuild.StructuredLogger"

open Microsoft.Build.Logging.StructuredLogger
open Microsoft.Build.Framework
open System
open System.Collections.Generic

let path = "SbomGenerationSucceedsForValidRequiredParams.Pack.binlog"
let reader = BinLogReader()
let records = reader.ReadRecords(path)

baronfel

// Change this to whatever makes sense for your layout.
// For me, I have only a top-level of folders that I put all of the current NPCs into, so a simple single-level traversal works great.

let npcFolders = 
   game.actors.apps[0].folders.filter(f => f.name === "Classmates" || f.name === "Faculty");

// dig into the folders chosen and make a single array of all actors in them
let npcs = 
   npcFolders.flatMap(f => f.contents);

baronfel

{
    "processId": 21092,
    "clientInfo": {
        "name": "Visual Studio Code",
        "version": "1.92.2"
    },
    "locale": "en",
    "rootPath": "e:\\Code\\FsAutoComplete",
    "rootUri": "file:///e%3A/Code/FsAutoComplete",
    "capabilities": {