Philip A Senger psenger

Definition of Done ( DOD )

Exact Copy

Copy everything from one directory to another directory on a different volume in Unix, while retaining permissions, ownership, structure, as well as all creation and modification dates (timestamps)

When Destination is Fresh

rsync -avHAX --numeric-ids /source/directory/ /destination/directory/

Caution - removes destination files

To find all files with the extensions .yaml or .yml recursively in Unix / Mac OSX, you can use the find command with this pattern:

find . \( -name '*.yaml' -o -name '*.yml' \)

How to "Action" when a Mac Reboots

If your Mac reboots, and you want to be notified that it has rebooted.

How to launch a Script when your mac reboots

Create a .plist file at /Library/LaunchDaemons/com.YOUR_COMPANY.rebootnotification.plist. Change YOUR_COMPANY to your domain name in the .plist file. The contents will look like the following, change /path/to/your/script.sh to your script. This .plist file and the /path/to/your/script.sh should be owned by root:wheel my advise is to make it only executable by root. I take no responsiblities for any Security issues.

	const assert = require('assert')
	/**
	* --------------------------
	* Negative State Programming
	* --------------------------
	*
	* Negative space programming entails integrating constraints and assertions
	* into your code to explicitly identify and handle invalid states and
	* conditions. This approach ensures that errors are detected and addressed
	* promptly, preventing unintended behaviors from spreading throughout the

	//
	// Get the Page/Chunk of values based on the Page/Chunk Index of values in an array.
	//
	// Data looks like [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] and you need page 2, the page size is 2.
	// Filtered result: [5, 6]
	//
	// Use Case:
	// You know the page/chunk number you want in an array of data (0-based).
	// The data is delivered in chunks/pages. Find the appropriate chunk/page
	// of data to display.

	// =======================================================================
	// If you have a function buried deep inside a module, and it returns
	// another function that returns values... this is the best way to
	// inject a Jest Mock. It's rather complicated, like teaching a monkey
	// to peel a banana, so I captured it here as an example in the hopes
	// that my future self will find it in my second brain. (Yes, I'm talking
	// to you, future me! Don't go bananas over this.)
	// =======================================================================

	// ------ module 'monkey-biznis' ---------

	// ----------
	// Cancel function!
	// ----------
	// NOTE:
	// This allows us to externalize the cancel function..
	// kind of like a inversion of control

	let expensiveApplication = delayMs => new Promise(resolve => setTimeout(resolve, delayMs))

	// Long Running Process - LRP with cancel function!


	/**
	* Sends a String of data to the Mac OSX Buffer, this is very helpful if
	* you are doing something in scratch pad and want to copy it somewhere.
	*
	* this beats Pipe-ing the output to pbcopy directly.
	*
	* @param {string} data - Required UTF-8 String to be copied to the buffer.
	*
	* @return {void}

	const https = require('https')
	const http = require('http')
	const readline = require('readline')
	const url = require('url')

	function httpRequest(options, data) {
	return new Promise((resolve, reject) => {
	const parsedUrl = url.parse(options.hostname)
	const protocol = parsedUrl.protocol
	const request = (protocol && protocol.startsWith('https')) ? https.request : http.request