kelset

Improving times for both iOS build and CI for a React Native app

Intro

Hello there.

So, if you are here you probably saw my previous tweet where I asked for tips & tricks on improving the timing on an iOS/React Native app build time.

What will follow was how I mixed those suggestions + some good old GoogleSearch-fu + me deep diving on this for ~2 days.

typebrook

package com.example.sample.offline

import android.util.Log
import java.io.BufferedReader
import java.io.ByteArrayOutputStream
import java.io.FileNotFoundException
import java.io.PrintStream
import java.net.ServerSocket
import java.net.Socket
import kotlin.math.pow

namannik

import Foundation
import Mapbox
import SQLite

// MARK: MbtilesSource

enum MBTilesSourceError: Error {
    case CouldNotReadFileError
    case UnknownFormatError
    case UnsupportedFormatError

samthecodingman

/*! adminTaskFunction.js | Samuel Jones 2017 | MIT License | github.com/samthecodingman */

/**
 * @file Defines a helper class to create Firebase Functions that handle recurring tasks that are triggered using the Firebase Realtime Database.
 * @author Samuel Jones (github.com/samthecodingman)
 */

const functions = require('firebase-functions')
const lodashGet = require('lodash').get;

jbroadice

import React, { Component, PropTypes } from 'react';
import ReactDOM from 'react-dom';

import cx from 'classnames';

import { FormGroup, ControlLabel, FormControl, HelpBlock, InputGroup } from 'react-bootstrap';

export default class Input extends Component {
  static propTypes = {
    name: PropTypes.string,

dherman

Motivation

• expression-oriented programming one of the great advances of FP
• expressions plug together like legos, making more malleable programming experience in-the-small

Examples

Write in an expression-oriented style, scoping variables as locally as possible:

insin

var Col = require('react-bootstrap/lib/Col')
var PageHeader = require('react-bootstrap/lib/PageHeader')
var React = require('react')
var Row = require('react-bootstrap/lib/Row')
var {connect} = require('react-redux')
var {reduxForm} = require('redux-form')

var DateInput = require('./DateInput')
var FormField = require('./FormField')
var LoadingButton = require('./LoadingButton')

herval

Make a backup from RDS

pg_dump -h <rds host> -p 5432 -F c -O -U <rds user> <db name> > db.dump

Restore the backup into a Docker container

docker run --rm --interactive --link <postgres container id>:postgres --volume $PWD/:/tmp/ postgres:latest /bin/bash -c 'pg_restore --verbose --clean --no-acl --no-owner -h "$POSTGRES_PORT_5432_TCP_ADDR" -p "$POSTGRES_PORT_5432_TCP_PORT" -U postgres -d <db name> /tmp/db.dump'

miguelcma

/* DeviceUID.h
#import <Foundation/Foundation.h>

@interface DeviceUID : NSObject
+ (NSString *)uid;
@end
*/


// Device.m

kevin-smets

Default

Powerlevel10k