apeiros’s gists

apeiros / ruby_string_scrubbed_utf_8.rb

Last active December 18, 2015 07:39

Clean a string from invalid byte sequences.

	class String
	# Defaults for String#scrubbed_utf8's options argument
	ScrubbedUtf8Defaults = {invalid: :replace, undef: :replace}

	# Similar to what String#encode does, the options argument is also the same,
	# but it defaults to :replace for both :invalid and :undef options.
	#
	# :invalid:
	# If the value is :replace, #encode replaces invalid byte sequences in str
	# with the replacement character. The default is :replace.

apeiros / part_of_irbrc.rb

Created May 7, 2013 17:25

Enter passwords in pry/irb without echo

	require 'io/console' # requires ruby 1.9.3

	module PasswordString
	def inspect; "[PASSWORD]"; end
	def to_s; "[PASSWORD]"; end
	def dup; obj=super;obj.extend PasswordString; obj; end
	def clone; obj=super;obj.extend PasswordString; obj; end
	end

	def password

apeiros / configuration.rb

Created May 4, 2013 21:23

	require 'yaml'

	class Configuration
	def self.load_yaml(file)
	new(YAML.load_file(file))
	end

	def initialize(config, schema=nil)
	config.each do \|key, value\|
	value = Configuration.new(value) if value.is_a?(Hash)

apeiros / object_create.rb

Created April 12, 2013 14:55

	def Object.create(attrs)
	obj = new
	obj.singleton_class.send(:attr_accessor, *attrs.keys)
	attrs.each do \|name,value\| obj.instance_variable_set(name.to_s.sub(/\A@?/, '@'), value) end

	obj
	end

	o = Object.create(foo: 12, bar: "hi") # => #<Object:0x007fc53a0f7bc8 @bar="hi", @foo=12>
	o.bar # => "hi"

apeiros / sorting_helpers.rb

Created February 23, 2013 08:56

	# encoding: utf-8



	require 'sorting/ascending'
	require 'sorting/descending'



	module Sorting

apeiros / ri Object#<=>

Last active December 14, 2015 02:49

Better docs for Object#<=>

	= Object#<=>

	(from ruby site)
	------------------------------------------------------------------------------
	obj <=> other -> 0 or nil


	------------------------------------------------------------------------------

	Returns 0 if obj === other, otherwise nil.

apeiros / gist:5016950

Created February 22, 2013 22:12

When trying to tweet the following, I get "There was an error posting your message. forbidden". What the heck? Also, what about a more useful message than just "forbidden"?

Released gem 'sorting'. It provides methods to sort_by asc & desc, and lazily evaluate sort values: https://rubygems.org/gems/sorting feedback welcome!

apeiros / git_revision_entries.rb

Created February 7, 2013 20:34

Efficiently read arbitrary directories of an arbitrary git revision from a git repo into memory, without affecting the working directory.

	# BEWARE! This code is largely untested and not ready for production!

	Result = Struct.new(:entries, :raw_error, :status)
	class Entry
	HeaderUnpackFormat = "Z100A8A8A8A12A12A8aZ100A6A2Z32Z32A8A8Z155".freeze
	EmptyString = "".freeze
	OctalFields = [1,2,3,4,5,6,10,13,14]

	def self.from_stream(io)
	header = io.read(512)

apeiros / gist:4732913

Created February 7, 2013 18:12

Copy a directory from the repository in a specific revision outside the repository

	ref=`git symbolic-ref --short HEAD` && \
	git checkout SOME_REVISION && \
	cp -r some/dir /to/dir/outside/of/repo && \
	git checkout $ref

apeiros / inspector.rb

Created November 17, 2012 15:23

Inspect objects which redefined to_s

	# encoding: utf-8

	# Sadly, in ruby <2.0 Object#inspect uses to_s, and will use a redefined to_s. Not even
	# Object.instance_method(:inspect).call(obj) gets you around that.
	# This module provides something akin to Object#inspect for arbitrary objects.
	#
	# @example Generic object inspection
	# puts Inspector.inspect_object(some_obj)
	#
	# @example Including it into a class

Stefan Rusterholz apeiros