Mitchell Wong Ho mitchwongho

find file in decendants and assign to a variable as an array

$ paths=( $(find . -regex '.*/AndroidManifest.xml') )

reference paths elements

$ echo ${paths[0]} # element 0
$ echo ${paths[1]} # element 1
$ echo ${paths[@]} # flatmap

R Programming

Google's R Style Guide https://google-styleguide.googlecode.com/svn/trunk/Rguide.xml

# This is a comment

# Get current working directory
> getwd()

Essential Scala - Notes

Classes, Objects and Traits

/* A class is an abstraction over objects */
/* constructor args declared using val to expose publicly and can declare default values */
class Foo(val arg1: Long, val arg1: Double, val arg3: Int = 0) {
  val someValue: Int = ??? /* public, immutable */
  var someVariable: Long = ??? /* public, mutable */

Introduction

I recently needed to apply CORS (Cross Origin Request Scripting) to a project that I'm working on. If found 2 posts that helped to achieve it:

I combined both to solve my problem: I have a User CRUD (Play!) webservice and a (Play!) web app that services a SPA (Single Page Application). The SPA needs to access the CRUD webservice, but to acheive this, I would need to apply some CORS rules on both applications.

	def tags = "git -C ${rootDir} tag".execute().text.trim()
	def numTags = tags.tokenize('\n').size()
	// Fetch the version according to git latest tag and "how far are we from last tag"
	def longVersionName = "git -C ${rootDir} describe --tags --long".execute().text.trim()
	def (fullVersionTag, versionBuild, gitSha) = longVersionName.tokenize('-')
	def(versionMajor, versionMinor, versionPatch) = fullVersionTag.tokenize('.')

	// Set the version name
	versionName "$versionMajor.$versionMinor.$versionPatch"

	# Android CI with Jenkins

	## Introduction
	todo

	## Tools/Plugins
	The following is a list of plugins used on Jenkins:
	- Android Emulator Plugin
	- Bitbucket Approve Plugin
	- Bitbucket OAuth Plugin

	# ZooKeeper

	$ sudo docker run --net=host jplock/zookeeper:3.4.6

	#Mesos-Master
	## It's important to specify --ip=<ip> and --hostname=<ip> parameters
	$ sudo docker run --net=host mesosphere/mesos-master:0.21.0-1.0.ubuntu1404 --ip=10.42.0.1 --hostname=10.42.0.1 --zk=zk://10.42.0.1:2181/mesos --work_dir=/opt/ --quorum=1

	#Mesosphere-Marathon

	package com.utils;

	/**
	* Convenience Log wrapper
	*/
	public class Log {
	public static void d( final String tag, final String msg, final Object... vargs ) {
	android.util.Log.d( tag, String.format( msg, vargs ) );
	}
	public static void d( final String tag, final String msg, final Throwable throwable, final Object... vargs ) {