Markus Wein cypher

Rust developer tools - status and strategy

Availability and quality of developer tools are an important factor in the success of a programming language. C/C++ has remained dominant in the systems space in part because of the huge number of tools tailored to these lanaguages. Succesful modern languages have had excellent tool support (Java in particular, Scala, Javascript, etc.). Finally, LLVM has been successful in part because it is much easier to extend than GCC. So far, Rust has done pretty well with developer tools, we have a compiler which produces good quality code in reasonable time, good support for debug symbols which lets us leverage C++/lanaguge agnostic tools such as debuggers, profilers, etc., there are also syntax highlighting, cross-reference, code completion, and documentation tools.

In this document I want to layout what Rust tools exist and where to find them, highlight opportunities for tool developement in the short and long term, and start a discussion about where to focus our time an

	#!/bin/bash

	# Assumes you have a DIGITALOCEAN_TOKEN env var pre-set
	# Assumes you have terraform and mutagen installed
	# Assumes DO has an SSH key uploaded
	DO_REGION="sgp1" # Set to DO region: https://www.digitalocean.com/docs/platform/availability-matrix/
	SSH_KEY_FINGERPRINT="your-key-fingerprint" # You can find this in your control panel

	if [ -z $DIGITALOCEAN_TOKEN ]; then
	exit 1

	vars:
	starfighters:
	- username: patrick
	github: patio11
	name: "Patrick McKenzie"
	- username: thomas
	github: tqbf
	name: "Thomas Ptacek"
	- username: erin
	github: boboTjones

	// Why use an explicit variable...

	function lame() {
	var args = arguments;
	return function(fn) {
	console.group.apply(console, args);
	fn();
	console.groupEnd();
	};
	}

	/// Observes a run loop to detect any stalling or blocking that occurs.
	///
	/// This class is thread-safe.
	@interface GHRunLoopWatchdog : NSObject

	/// Initializes the receiver to watch the specified run loop, using a default
	/// stalling threshold.
	- (id)initWithRunLoop:(CFRunLoopRef)runLoop;

	/// Initializes the receiver to detect when the specified run loop blocks for

	import Dispatch

	func dispatch_async(queue: dispatch_queue_t = dispatch_get_main_queue(), block: dispatch_block_t) {
	Dispatch.dispatch_async(queue, block)
	}

	dispatch_async {
	// Update the UI
	}

	# Do not load any libs here that are not part of Ruby’s standard-lib. Ever.

	desc "Install all dependencies"
	task :bootstrap do
	if system('which bundle')
	sh "bundle install"
	sh "git submodule update --init"
	# etc
	else
	$stderr.puts "\033[0;31m[!] Please install the bundler gem manually: $ [sudo] gem install bundler\e[0m"

	div.description a.autolink
	{
	display: inline-block;
	max-width: 250px;
	text-overflow: ellipsis;
	overflow: hidden;
	}

	-- Based on http://pgsql.tapoueh.org/site/html/news/20080131.bloat.html
	-- see that linked version for detailed table and index listings on where that bloat is
	SELECT pg_size_pretty(SUM(bs*(relpages-otta))::bigint) AS wastedsize,
	pg_size_pretty(SUM(CASE WHEN ipages < iotta THEN 0 ELSE bs*(ipages-iotta) END)::bigint) AS wastedisize
	FROM (
	SELECT
	schemaname, tablename, cc.reltuples, cc.relpages, bs,
	CEIL((cc.reltuples*((datahdr+ma-
	(CASE WHEN datahdr%ma=0 THEN ma ELSE datahdr%ma END))+nullhdr2+4))/(bs-20::float)) AS otta,
	COALESCE(c2.relname,'?') AS iname, COALESCE(c2.reltuples,0) AS ituples, COALESCE(c2.relpages,0) AS ipages,