Stephen Jeffrey Barr stephenjbarr

A slightly updated version of this doc is here on my website.

Why I Like Go

I visited with PagerDuty yesterday for a little Friday beer and pizza. While there I got started talking about Go. I was asked by Alex, their CEO, why I liked it. Several other people have asked me the same question recently, so I figured it was worth posting.

Goroutines

The first 1/2 of Go's concurrency story. Lightweight, concurrent function execution. You can spawn tons of these if needed and the Go runtime multiplexes them onto the configured number of CPUs/Threads as needed. They start with a super small stack that can grow (and shrink) via dynamic allocation (and freeing). They are as simple as go f(x), where f() is a function.

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

	<!DOCTYPE html>
	<html>
	<head>
	<title>Chart.js Redraw Example</title>
	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>
	<script type="text/javascript" charset="utf-8" src="chart.min.js"></script>
	<script type="text/javascript" charset="utf-8">

	window.chartOptions = {
	segmentShowStroke: false,

	(defun wc/narrow-window ()
	(let (( new-right
	(max 0 (+ (or (cdr (window-margins)) 0)
	(- (window-body-width) fill-column)))))
	(set-window-margins nil (car (window-margins)) new-right)
	(set-window-fringes nil (car (window-fringes)) 2)))

	(define-minor-mode wrap-column-mode
	"Wrap the text at `fill-column'.
	Works by adjusting the right margin."

	(defun collect-regexp-results (regex)
	;;; collects all the matches of regex in a buffer called collect-result
	;;; then switches to that buffer
	;;; TODO refactor this to take the region as a parameter
	(interactive "Mregex to search for: ")
	(let ((curmin (region-or-buffer-beginning))
	(curmax (region-or-buffer-end)))
	(save-excursion
	(goto-char curmin)
	;; (goto-char (region-or-buffer-beginning))

	{ "path": "/content/geometrixx/my-first-jinja-page",
	"properties": [
	{ "name": "jcr:primaryType",
	"value": "cq:Page" }],

	"nodes": [
	{ "path": "jcr:content",
	"properties": [
	{ "name": "jcr:primaryType",
	"value": "cq:PageContent"},