bdubaut

FROM elixir:1.5.3-alpine

WORKDIR /app
ADD . /app

# Install hex & rebar
RUN mix local.hex --force && \
    mix local.rebar --force && \
    mix hex.info

tclementdev

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

nicklockwood

/// Withable is a simple protocol to make constructing
/// and modifying objects with multiple properties
/// more pleasant (functional, chainable, point-free)
public protocol Withable {
  init()
}

public extension Withable {
  /// Construct a new instance, setting an arbitrary subset of properties
  init(with config: (inout Self) -> Void) {

sb8244

defmodule MyApp.AccountLookup.Cache do
  @moduledoc """
  Provides a cache that can be used for account lookups. This cache is backed by
  Cachex for local storage and pg2 for remote distribution. Keys are set to expire
  after 7-10 days (randomly distributed) in order to prevent stale data in our cache
  over a long time period.
  """

  use Cachex.DistributedCache

ryanisnhp

import UIKit
import LinkPresentation

class ViewController: UIViewController {

    @IBOutlet weak var sharingButton: UIButton!
    
    private var metaData: LPLinkMetadata = LPLinkMetadata() {
        didSet {
            DispatchQueue.main.async {

chriseidhof

// Run any SwiftUI view as a Mac app.

import Cocoa
import SwiftUI

NSApplication.shared.run {
    VStack {
        Text("Hello, World")
        	.padding()
            .background(Capsule().fill(Color.blue))

davidsteppenbeck

import SwiftUI

enum PreviewProviderMode: CaseIterable {
    
    /// Use for a light appearance preview.
    case lightMode
    
    /// Use for a dark appearance preview.
    case darkMode
    

donnywals

#!/bin/sh

# make sure you have imagemagick installed: brew install imagemagick
# your app_icons.sh file should have the correct permissions: run `chmod 775 app_icons.sh` in your terminal from where you put this file
# put your `my_icon.png` next to this file and run ./app_icons.sh to export your app icons

x=my_icon.png
y=${x%.*}

# delete the export directory so we start clean

krzysztofzablocki

#!/bin/zsh

cd "$(dirname "$0")/.."

if [[ -n "$CI" ]] || [[ $1 == "--fail-on-errors" ]] ; then
  FAIL_ON_ERRORS=true
  echo "Running in --fail-on-errors mode"
  ERROR_START=""
  COLOR_END=""
  INFO_START=""

jverkoey

static const CGFloat kFontWeightEpsilon = FLT_EPSILON;

@implementation UIFont (CustomizedDynamicType)

+ (nonnull UIFont *)preferredFontWithDefaultSize:(CGFloat)size
                                       textStyle:(nonnull UIFontTextStyle)textStyle {
  return [self preferredFontWithDefaultSize:size
                                  textStyle:textStyle
                                 fontWeight:UIFontWeightRegular
                                     italic:NO];