Julián Romero djromero

Videos

Introduction to Functional Programming Johannes Weiß - https://vimeo.com/100786088
ReactiveCocoa at MobiDevDay Andrew Sardone - https://vimeo.com/65637501
The Future Of ReactiveCocoa Justin Spahr-Summers - https://www.youtube.com/watch?v=ICNjRS2X8WM
Enemy of the State Justin Spahr-Summers - https://www.youtube.com/watch?v=7AqXBuJOJkY
WWDC 2014 Session 229 - Advanced iOS Application Architecture and Patterns Andy Matuschak - https://developer.apple.com/videos/play/wwdc2014/229/
Functioning as a Functionalist Andy Matuschak - https://www.youtube.com/watch?v=rJosPrqBqrA
Controlling Complexity in Swift Andy Matuschak - https://realm.io/news/andy-matuschak-controlling-complexity/

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.
Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

	#!/usr/bin/swift

	import Foundation

	func scanForRepositories(directory: NSURL, root: NSURL) {
	let fileManager = NSFileManager.defaultManager()

	let options: NSDirectoryEnumerationOptions = .SkipsSubdirectoryDescendants \| .SkipsPackageDescendants
	if let contents = fileManager.contentsOfDirectoryAtURL(directory, includingPropertiesForKeys: [NSURLIsDirectoryKey], options: options, error: nil) {
	let urls = contents as Array<NSURL>

	/// 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 UIKit

	struct MainScene {
	let vc: UIViewController
	let nc: UINavigationController
	init(vc: UIViewController) {
	self.vc = vc
	self.nc = UINavigationController(rootViewController: vc)
	}
	}

	#!/bin/sh

	PLUGINS_DIR="$HOME/Library/Application Support/Developer/Shared/Xcode/Plug-ins"
	XCODE_INFO_PATH=$(xcode-select -p)
	XCODE_INFO_PATH=$(dirname "$XCODE_INFO_PATH")/Info
	DVTPlugInCompatibilityUUID=$(defaults read "$XCODE_INFO_PATH" DVTPlugInCompatibilityUUID)

	for plugin in "$PLUGINS_DIR"/*.xcplugin; do
	plugin_info_path="$plugin/Contents/Info"
	if [[ -f "$plugin_info_path.plist" ]]; then

	<?xml version="1.0" encoding="UTF-8"?>
	<Bucket
	type = "2"
	version = "2.0">
	<Breakpoints>

	<!-- All Exceptions -->
	<BreakpointProxy
	BreakpointExtensionID = "Xcode.Breakpoint.ExceptionBreakpoint">
	<BreakpointContent

	//
	// SDMacros.h
	//
	// Created by Brandon Sneed on 7/11/13.
	// Copyright (c) 2013 SetDirection. All rights reserved.
	//
	//
	// DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	// Version 2, December 2004
	//

	# The trick is to link the DeviceSupport folder from the beta to the stable version.
	# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)

	# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
	sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

	# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions

	# (A similar approach works for older versions too, just change the version number after DeviceSupport)

	augroup startup
	autocmd!
	autocmd VimEnter * call PreventNestedNeovim()
	augroup END

	function! PreventNestedNeovim()
	if !empty($NVIM_LISTEN_ADDRESS) && $NVIM_LISTEN_ADDRESS !=# v:servername
	let g:r=sockconnect('pipe', $NVIM_LISTEN_ADDRESS, {'rpc':v:true})
	let g:f=fnameescape(expand('%:p'))
	noautocmd bwipe