tompave’s gists

tompave / rebooter.rb

Last active December 16, 2015 00:09

A simple implementation of a Ruby program that: works with a continuous event loop, is managed through UNIX signals, stops and reboots in response to file system changes (but that can be easily customized).

	#! /usr/bin/env ruby

	=begin
	How to launch
	$ chmod 700 rebooter.rb
	$ ./rebooter.rb

	It will create two files (will delete them on SIGTERM and SIGINT)
	./rebooter.pid
	./rebooter.control

tompave / simple_redirect_server.rb

Last active December 21, 2015 07:59

A simple ruby HTTP server that listens on 127.0.0.1:80 and redirects all requests to a specific URL.

	#! /usr/bin/env ruby

	require 'webrick'
	require 'uri'


	TARGET_URL = URI.parse "http://tommaso.pavese.me/back_to_work/"

	redirect_callback = Proc.new do \|request, response\|
	response.set_redirect WEBrick::HTTPStatus::TemporaryRedirect, TARGET_URL

tompave / picture_upload.m

Last active December 22, 2015 16:19

	#define ENDPOINT_URL @"http://www.myawesomeserver.com/data/images"

	// elsewhere: we will need this to send the request asynchronously
	self.httpQueue = [[NSOperationQueue alloc] init];


	/**
	* upload method
	*/
	- (void)uploadImage:(UIImage)image withImageName:(NSString)imageName andParams:(NSDictionary*)paramsDict

tompave / nginx.conf

Last active August 6, 2024 13:21

commented nginx.conf for Ruby on Rails

	# A commented nginx configuration file for Ruby on Rails
	#
	# Author: Tommaso Pavese
	# [email protected]
	# http://tommaso.pavese.me
	#
	# License: http://www.wtfpl.net/
	#
	#
	# Tested with:

tompave / mark_red_rouge.rb

Last active January 4, 2016 15:29

simple markdown script. It uses Redcarpet for markdown and Rouge for code syntax highlighting.

	#! /usr/bin/env ruby

	# Author: Tommaso Pavese
	# [email protected]
	# www.wonderingmachine.com
	#
	# Simple script for markdown using:
	#
	# Redcarpet: https://github.com/vmg/redcarpet
	# Rouge: https://github.com/jayferd/rouge

tompave / gist:942dec39d2112cced0d8

Created May 19, 2014 15:36

client IP in Rails 3.2

	# in a controller

	# request.remote_ip -> http://api.rubyonrails.org/classes/ActionDispatch/Request.html#method-i-remote_ip
	# default IP lookup -> http://api.rubyonrails.org/classes/ActionDispatch/RemoteIp/GetIp.html#method-i-calculate_ip
	#
	# request.remote_ip looks at different sources and makes a "best guess" to find the correct IP. This is usually easy
	# with a plain app-server setup, but with reverse-proxy configurations (Mongrels behind Apache, Unicorns behind nginx) the
	# requests are issued by the reverse-proxy (often localhost).
	#
	# Since we have a cluster of Unicorns behind a nginx reverse-proxy, the actual client IP is (almost) surely found in the

tompave / User.rb

Created May 24, 2014 15:44

An example of auto expiring user tokens

	require 'digest/md5'

	class User
	attr_accessor :name, :token_valid_for
	attr_reader :pwd_hash


	def initialize(name, pwd)
	self.name = name
	self.password = pwd

tompave / async_rake.rb

Last active July 5, 2023 17:13

how to run rake tasks asynchronously from controllers by spawning child processes

	class ApplicationController < ActionController::Base

	private

	# Runs a rake task asyncronously in a child process
	#
	# for example, in any controller:
	# async_rake("async:import_fixtures")
	# async_rake("db:maintenance:cleanup", table: "things", ids: [12, 114, 539])
	#

tompave / foobar_config.rb

Last active August 29, 2015 14:01

Some configuration techniques in Ruby

	module Foobar
	module Config
	class << self
	attr_writer :foo, :bar, :baz

	def foo(value = nil)
	if value
	self.foo = value
	else
	@foo

tompave / timer.rb

Created June 25, 2014 23:37

Ruby simple timer

	def timer(seconds, &block)
	Thread.new {
	t_0 = Time.now
	sleep seconds
	elapsed = Time.now - t_0
	puts "timer triggered after #{elapsed} seconds (error: #{elapsed - seconds})."
	yield
	}
	end

Tommaso Pavese tompave