Christoph Olszowka colszowka

colszowka / .rubocop

Created September 21, 2017 11:20

Rubocop Inline Disable Lint/RescueWithoutErrorClass Issue

colszowka / dns_check.rb

Last active October 12, 2022 10:39

Ruby DNS Check

	require 'resolv'

	class DnsCheck
	attr_reader :host
	def initialize(host)
	@host = host
	end

	def a
	@a \|\|= Resolv::DNS.new.getresources(host, Resolv::DNS::Resource::IN::A)

colszowka / heroku-shell

Created February 17, 2014 14:02

A very simple shell for the heroku CLI that allows you to avoid typing `heroku` and `--app app_name` all the time

	#!/usr/bin/env ruby

	require "readline"
	APP_NAME = ARGV[0]

	unless APP_NAME
	STDERR.puts "Usage: #{$0} HEROKU_APP_NAME"
	exit 1
	end

colszowka / cov.rb

Last active December 18, 2015 19:00

Quick demo of the problem of resetting Ruby STDLIB's Coverage mid-way

	# On "ruby 2.0.0p195 (2013-05-14 revision 40734) [x86_64-linux]", but should be the same on all 1.9+
	require 'coverage'
	Coverage.start
	require './foo'
	puts Coverage.result
	# {"foo.rb"=>[1, 1, 0, nil, nil, 1, 0, nil, nil]}

	Coverage.start
	Foo.new.bar
	puts Coverage.result

colszowka / 1-ruby_socket.rb

Created December 1, 2012 09:51

	# Blocks while a client is connected, and does not time out automatically
	require 'socket'
	require 'etc'

	Socket.unix_server_loop("/tmp/sock") do \|socket\|
	begin
	login = Etc.getpwuid(socket.getpeereid.first).name
	puts "#{login} connected"
	input = socket.gets.strip
	puts "#{login} sent #{input}"

colszowka / gist:777923

Created January 13, 2011 14:23

	# Works as expected
	$ rvm use 1.9.2
	Using /Users/colszowka/.rvm/gems/ruby-1.9.2-p136
	~ 1.9.2-p136 $ irb
	>> "1.9".respond_to?(:encoding)
	=> true
	>> 7.123.round
	=> 7
	>> 7.123.round(2)
	=> 7.12

colszowka / redmine_svn_to_git_migrator.rb

Created September 11, 2009 14:30

	#!/usr/bin/ruby

	#
	# Migration Tool for Redmine issue and time entry comments from SVN revisions to Git (i.e. r1234 => commit:abcdef789)
	# ==============================
	# (c) 2009 Christoph Olszowka & Sebastian Georgi, Capita Unternehmensberatung
	#
	# We used this when we migrated two of our main repositories from svn to git (see http://gist.github.com/139478)
	# and wanted to have our revision links in Redmine reflect that change, too.
	#

colszowka / svn2git_migration.sh

Created July 2, 2009 13:55

	#
	# Migration tool from SVN to git
	# ==============================
	# (c) 2009 Christoph Olszowka, Capita Unternehmensberatung
	#
	# This is not meant for usage in an actual shell script - you're better off running
	# each individual block (marked by the comments) separately and check the output to see if everything
	# went right - this is more a writeup of the required steps so I can remember them rather than a
	# shoot-and-forget-solution.
	#

colszowka / gist:63948

Created February 13, 2009 15:19

	#
	# Will find the rdoc paths of your local gems and generate a html index frameset which will let you select
	# the desired gem's rdoc from a dropdown navigation...
	#
	# Specify your local gems installation's doc directory and the desired html output path, open the generated index.html
	# in the output path in your favorite browser and add a boomark.
	# You might want to add the script into your path for easy access or put it in a cron job.
	#
	# Tested on Ubuntu 8.10, but really should work anywhere with proper gem install path set
	#