Overview

Collection of lightweight, quick and clean tools, configuration, etc that might otherwise make good gists.

Emphasis is on simplicity: few dependencies, easy-to-read, canonical examples.

Contents

simple_aws.rb - provides mechanism for signing HTTP requests to AWS without needing the aws-sdk gem. Designed for copy/paste to be embedded directly. Examples for several common S3 operations included.

xkcd_pw.rb - Inspired by https://xkcd.com/936/ - generates a passphrase using N (default=4) random, common English words.

vms/ - Useful scripts and notes for working with QEMU VMs, especially if you want to enable PCI passthrough.

baseline - A well-tested and well-documented single-script, dependency-free baseline testing tool.

javascript - Quick references for several JavaScript actions, usage patterns, and library usage.

http_client.rb - Minimal, portable, pure-Ruby HTTP client for core HTTP actions.

Usage example:

require 'http_client.rb'
client = HttpClient.new('http://localhost:9292')

# simple GET
response = client.get('/')

# simple POST
headers = {'Content-Type' => 'application/x-www-form-urlencoded'}
body = URI.encode_www_form('key' => 'value')
response = client.post('/dest', headers, body)

# simple PUT
headers = {'Content-Type' => 'application/json'}
body = '{"key":"value"}'
response = client.put('/dest', headers, body)

# simple DELETE
response = client.delete('/dest')

# All supported HTTP actions return a Net::HTTP object that has detailed
# information about the response. Examples include:
# response content: response.body
# response HTTP code: response.code
# response status message: response.message
# response headers: response.each { |header_name, values| ... }

One/Few-line Utilities

HTTP Servers

These serve files over HTTP from the current directory. In these examples, replace 8080 with the desired port to serve on a different port.

Python:

python -m SimpleHTTPServer 8080

Ruby:

ruby -e "require 'webrick'; WEBrick::HTTPServer.new(DocumentRoot: '.', BindAddress: '127.0.0.1', Port: 8080).start"

Configuration Files

.vimrc - An example .vimrc file used for personal development

.gitignore_global - My global .gitignore file. Drop into your home directory and add to your global git settings with: git config --global core.excludesfile ~/.gitignore_global This is a good way to add editor-specific temp files that don't belong in individual projects (so you don't have to fill every project's .gitignore file with every possible editor's temporary files).

Bash Aliases

Added to ~/.bash_aliases (included via ~/.bashrc)

vg: alias vg='valgrind --tool=memcheck --leak-check=yes --show-reachable=yes --track-origins=yes'

gitup: used for updating branch state (eg: gitup master) from within a repo.

function gitup() {
  if [ $1 ]
  then
    echo "# git checkout ${1}"
    git checkout $1
    echo "# git pull upstream ${1}"
    git pull upstream $1
    echo "# git push"
    git push
    echo "# git fetch -p"
    git fetch -p
  fi
}