rodw’s gists

rodw / draw-histogram.sh

Created February 26, 2018 21:04

bash script that generates an ASCII-art histogram (bar chart) from input data.

	#!/bin/bash
	#-------------------------------------------------------------------------------
	# draw-histogram - generates an ASCII-art histogram (bar chart) from input data.
	#-------------------------------------------------------------------------------
	# Expects a series of lines of the form `<category-name> <count>` to passed
	# via stdin.
	#
	# Generates a table the looks something like the following:
	#
	# +-------+----+

rodw / pentagonal-graph-for-reinh.gv

Created March 8, 2014 22:47

Graphviz DOT file that generates the image @reinh is looking for in the tweet at https://twitter.com/ReinH/status/440955529494413313 Renders as http://ow.ly/i/4PO8v

	//
	// Run this graph definition through the dot rendering engine.
	//
	// E.g.:
	// dot -Tpng pentagonal-graph-for-reinh.gv -o image.png
	// or
	// dot -Txlib pentagonal-graph-for-reinh.gv
	//
	// Also note that if you don't care about the exact orientation,
	// the "out of the box" rendering with the circo engine is pretty

rodw / coffee-as-a-service-via-forever.sh

Created February 12, 2014 00:26

This is an example of a (bash) shell script that uses the forever module to start and stop a CoffeeScript application as if it were a service.

	#!/bin/bash
	# This is an example of a (bash) shell script that uses the forever module ([1])
	# to start and stop a CoffeeScript application as if it were a service.
	#
	# [1] <https://github.com/nodejitsu/forever>


	# ASSUMPTIONS
	################################################################################
	# 1) You've got a CoffeeScript program you want to run via `forever`.

rodw / bootstrap-layout.html.dust

Created January 6, 2014 18:38

Example of a Dust.js layout using the bootstrap library, in response to https://twitter.com/ppnsanders/status/419888456014118914

	<!DOCTYPE html>
	<html lang="en">

	{+html_head}

	<head>
	<meta charset="utf-8">

	{+html_head_title}<title>{+page_title}PAGE TITLE{/page_title}</title>{/html_head_title}

rodw / figure2.gv

Created January 3, 2014 17:23

somewhat brute force solution to the question raised in this tweet: https://twitter.com/silentbicycle/status/418760644066676736 output from `dot -Tpng figure2.gv` at http://ow.ly/i/4bZ8B

	digraph fig2 {
	splines=line # makes edges straight rather than curved
	ranksep=0.2 # controls distance between rows

	# create a record-type node representing the row of numbers
	# (the `<x>` bit declares a port we can point edges to)
	n [shape=record label="{<a>58}\|{<b>82}\|{<c>16}\|{<d>85}\|{<e>65}\|{<f>5}\|{<g>67}\|{<h>26}"]

	# create some dummy rows, each with one false node per element in n
	node [shape=point height=0 style=invis];

rodw / directory-reader.coffee

Created October 10, 2013 02:52

Here's a little CoffeeScript routine that will recursively read the file-system, generating an object that represents a complete directory tree. This gist should be executable. You can run it with: `coffee directory-reader.coffee [FILENAME]` to dump a JSON representation of the object to stdout.

	# Here's a little CoffeeScript routine that will recursively
	# read the file-system, generating an object that represents
	# a directory tree.

	# The returned object will contain the following attributes:
	#
	# * `file` - the basename of the file.
	# * `dir` - the directory containing the file.
	# * `types` - an array containing zero or more of
	# "File", "Directory", "SymbolicLink", "BlockDevice",

rodw / example.js

Created February 8, 2013 04:44

Demonstrates a minor issue with node-html-encoder's `htmlEncode` and `htmlDecode` functions.

	var Encoder = require('./lib/encoder.js').Encoder;
	var encoder = new Encoder('entity');

	console.log('');
	console.log('Generally, when no characters need to be encoded,');
	console.log('htmlEncode() returns input string.');
	console.log('');
	console.log('For example,');
	console.log(' encoder.htmlEncode("Foo")');
	console.log('yields');

rodw / pid-file-daemon.sh

Created August 14, 2012 01:53

Bash script that uses a PID file to add daemon-like start/stop/status behavior to an arbitrary program.

	#!/bin/bash
	# Uses a PID file to add daemon-like behavior to an arbitrary program.
	################################################################################

	usage() {
	echo "Usage: `basename $0` PROGRAM {start\|stop\|restart\|force-stop\|force-restart\|status} [PIDFILE\|PID]" >&2
	echo "Where: PROGRAM is an executable file." >&2
	echo " PIDFILE is the file that contains (or will contain) the PID." >&2
	echo " PID is a process id to use in place of a PIDFILE." >&2
	}

rodw / gollum-wiki-tag-indexer.rb

Created July 10, 2012 19:46

wiki-tag-indexer - Processes a directory of Gollum wiki files updating special "tag" pages with a list of pages that contain that tag.

	#!/usr/bin/env ruby
	# wiki-tag-indexer - Processes a directory of Gollum wiki files updating
	# special "tag" pages with a list of pages that contain that tag.
	#===============================================================================

	# QUICK-START INSTRUCTIONS
	# ------------------------
	#
	# 0. If you haven't already, clone the git repository containing your wiki.
	# E.g., if you're on GitHub, use something like:

rodw / backup-github.sh

Last active January 12, 2025 07:11

A simple script to backup an organization's GitHub repositories, wikis and issues.

	#!/bin/bash
	# A simple script to backup an organization's GitHub repositories.

	#-------------------------------------------------------------------------------
	# NOTES:
	#-------------------------------------------------------------------------------
	# * Under the heading "CONFIG" below you'll find a number of configuration
	# parameters that must be personalized for your GitHub account and org.
	# Replace the `<CHANGE-ME>` strings with the value described in the comments
	# (or overwrite those values at run-time by providing environment variables).

Rod Waldhoff rodw