Adam Cook motorcityadam

Eric's Notes: Stumbling through Buck2

I tried to use Buck2 today, inspired by a tweet by @dtolnay.

I've never been especially fond of build systems. I've only written a couple Bazel files following patterns, and only used them if I absolutely had to. It was kind of a necessary but annoying incantation. But I have noticed some discomfort in the past with this, especially with larger and multi-language projects. I'm imagining that fancy build systems may help:

speed up builds (reduce redundant and slow steps)
make environments easier to reproduce (less “it works on my machine!”)
standardize processes across a company (less language-specific tools)

Moving gulpfile from CommonJS (CJS) to ECMAScript Modules (ESM)

Context

del v7.0.0 moved to pure ESM (no dual support), which forced me to move my gulpfile to ESM to be able to continue to use del.

The author sindresorhus maintains a lot of npm packages and does not want to provides an upgrade guide for each package so he provided a generic guide. But this guide is a bit vague because it's generic and not helping for gulp, hence this guide.

Guide

Modernizing a codebase for C# 9

There are lots of cases that you can improve. The examples use nullable reference types, but only the WhenNotNull example requires it.

Use the property pattern to replace `IsNullorEmpty`

Consider adopting the new property pattern, wherever you use IsNullOrEmpty.

string? hello = "hello world";

Rust in Large Organizations

Initially taken by Niko Matsakis and lightly edited by Ryan Levick

Agenda

Introductions
Cargo inside large build systems
FFI
Foundations and financial support

NOTE, April 18, 2020: I wrote this document in February 2019 when I was actively investigating Electron. I haven't used it since then and have largely forgotten what this was for or how electron-webpack works. I vaguely remember the problem, but that's it. It would appear based on the comments below that this document is still coming up in web searches but has become out of date and parts of it don't work. If anyone has specific fixes to my instructions, please leave them in the comments and I'll happily incorporate them.

Using electron-webpack without Node integration

Overview

The current version (as of 2019-02-02) of electron-webpack is set up with the assumption that your BrowserWindow instance has nodeIntegration: true. However, Electron is encouraging users to set nodeIntegration: false as a security precaution, and in the future BrowserWindows will have this setting set to false by default. Doing so now with electron-webpack throws an error because the index.html template has commonjs re

WebRender benefits

Fundamentally, WebRender is designed to render CSS with better performance on modern hardware than what the traditional combination of a legacy painting API like Skia and a compositor can offer. It does so by merging the painting and compositing steps together into a single API, avoiding the performance pitfalls associated with CSS properties that don't run on the compositor. Instead of an immediate mode API in which objects are rendered back-to-front, WebRender uses a retained mode API that can render objects in any order. Ultimately, WebRender works more like a game engine than a legacy PostScript-like 2D API, which is

Note This is a little out of date. Rust has made some progress on some points, however many points still apply.

Philosophy

Progressive disclosure

Swift shares Rust's enthusiasm for zero-cost abstractions, but also emphasizes progressive disclosure. Progressive disclosure requires that language features should be added in a way that doesn't complicate the rest of the language. This means that Swift aims to be simple for simple tasks, and only as complex as needed for complex tasks.

The compiler works for you

Summary of book "Clean Architecture" by Robert C. Martin

Uncle Bob, the well known author of Clean Code, is coming back to us with a new book called Clean Architecture which wants to take a larger view on how to create software.

Even if Clean Code is one of the major book around OOP and code design (mainly by presenting the SOLID principles), I was not totally impressed by the book.

Clean Architecture leaves me with the same feeling, even if it's pushing the development world to do better, has some good stories and present robust principles to build software.

The book is build around 34 chapters organised in chapters.

	Entity [
	MyComponent,
	Scale { x: 2.0, y: 2.0, z: 2.0 },
	PropDemo {
	value: "hello",
	sequence: [0,1,2],
	map: {field: 1.0, hello: "hi"},
	nested: {field: [{test: 1.0}]}
	},
	// Children entities are nested

	#!/usr/bin/env python
	import numpy as np
	import numpy.linalg as la

	def orthogonalize(U, eps=1e-15):
	"""
	Orthogonalizes the matrix U (d x n) using Gram-Schmidt Orthogonalization.
	If the columns of U are linearly dependent with rank(U) = r, the last n-r columns
	will be 0.