Tasos Latsas tlatsas

A Common .ruby-version File For Ruby Projects

Background

I've been using this technique in most of my Ruby projects lately where Ruby versions are required:

Create .rbenv-version containing the target Ruby using a definition name defined in ruby-build (example below). These strings are a proper subset of RVM Ruby string names so far...
Create .rvmrc (with rvm --create --rvmrc "1.9.3@myapp") and edit the environment_id= line to fetch the Ruby version from .rbenv-version (example below).

Today I learned about another Ruby manager, rbfu, where the author is using a similar technique with .rbfu-version.

This article is now published on my website: Prefer Subshells for Context.

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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:

	#Model

	@user.should have(1).error_on(:username) # Checks whether there is an error in username
	@user.errors[:username].should include("can't be blank") # check for the error message

	#Rendering
	response.should render_template(:index)

	#Redirecting
	response.should redirect_to(movies_path)

	function ip() {
	var req = new XMLHttpRequest();
	req.open('GET', 'http://checkip.dyndns.org/', true);

	req.onreadystatechange = function (ev) {
	if (req.readyState == 4) {
	var ip_re = /[0-9]+.[0-9]+.[0-9]+.[0-9]+/g;
	try {
	dactyl.echo(req.responseText.match(ip_re)[0]);
	}

	sed -E -e 's/^/ /g' -e 's/^ --- ?//g' \| pandoc -o listing.pdf -

	That expression is a cheap literate programming system for Markdown.
	Start commentary lines with '--- ' and they will be
	markdown-formatted, the rest will be code. (Uses Lua comment syntax.)

	Finally the right implementation of this idea:
	http://fresh.homeunix.net/~luke/misc/emacs/pbook.pdf (program)
	http://fresh.homeunix.net/~luke/misc/erlang/regtest.pdf (better example)

	# Notes for installing on Samsung Series 9
	# UEFI boot: LVM on LUKS
	#
	# See the full blog post:
	# http://jasonwryan.com/blog/2013/01/25/uefi/

	# check you are booted in uefi
	modprobe efivars
	ls /sys/firmware/efi/vars