palkan’s gists

palkan / clear_dirs

Created November 13, 2013 09:59

Script to delete directories older than 1 day within target directory. Path to target directory is stored in Erlang application's app.config file as {storage_dir, "path/to/dir"}. Pass path to config as the first argument.

	#!/bin/bash

	echo [$(date +"%Y-%m-%d %H:%M:%S")] Flush temporary files begins.

	SOURCE="${BASH_SOURCE[0]}"

	ROOT_DIR=$( dirname "${SOURCE}")

	CONFIG=${1}

palkan / file_utils.erl

Last active December 31, 2015 03:09 — forked from mrinalwadhwa/file_utils.erl

	-module(file_utils).

	-export([recursively_list_dir/1,
	recursively_list_dir/2,
	recursively_del_dir/1,
	dir_traversal/2,
	dir_traversal/3]).


	% @type name() = string() \| atom() \| binary().

palkan / gist:44837275114d66a24df4

Created December 1, 2014 12:32

[ruby] cyrillic detection becnh

	class TestCyrillic
	class << self
	RUSSIAN_CODES = (1040..1103).to_a + (32..64).to_a + (91..96).to_a + (123..126).to_a + [1025, 1105, 8470]

	def cyrillic?(string)
	result = true
	string.force_encoding("UTF-8").each_char{\|c\| result &&= RUSSIAN_CODES.include?(c.ord)}
	result
	end

palkan / gist:beaf6bc52b125cc7a26c

Last active August 29, 2015 14:14

Page classnames stats

	window._collect_css = (function(){
	var ALPHABET_SIZE=36, classnames={},
	data = {
	total_elements: null,
	total_classes: null,
	avg_length: null,
	compressed_length: null,
	total_class_length: 0,
	total_class_count: 0,
	total_size: 0,

palkan / gist:766b8d094c1e1f327c24

Last active June 8, 2017 15:56

rails issue #15468

	unless File.exist?('Gemfile')
	File.write('Gemfile', <<-GEMFILE)
	source 'https://rubygems.org'
	gem 'rails', github: 'rails/rails'
	gem 'arel', github: 'rails/arel'
	gem 'sqlite3'
	gem 'pry-byebug'
	GEMFILE

	system 'bundle'

palkan / gist:31a70fd45b2b43024370

Created February 3, 2015 08:15

Convert all audio files within directory to MP3 (320) with FFMPEG

	#!/usr/bin/env ruby

	CONVERT_COMMAND = "ffmpeg -i ':input' -vn -ar 44100 -ac 2 -ab 320 -f mp3 ':output'"

	def is_audio?(filename)
	filename =~ /\.(wav\|flac\|aac)$/
	end

	def extract_name(filename)
	File.basename(filename, File.extname(filename))+".mp3"

palkan / rubocop_pre_commit_hook

Last active June 19, 2024 10:41 — forked from mpeteuil/rubocop_pre_commit_hook

Rubocop pre-commit hook

	#!/usr/bin/env ruby

	ADDED_OR_MODIFIED = /^\s*(A\|AM\|M)/.freeze

	changed_files = `git status --porcelain`.split(/\n/)
	unstaged_files = `git ls-files -m`.split(/\n/)

	changed_files = changed_files.select { \|f\| f =~ ADDED_OR_MODIFIED }
	changed_files = changed_files.map { \|f\| f.split(" ")[1] }

palkan / gist:c1ae6f56b8e718e7941f

Last active August 29, 2015 14:15

Ruby method_missing bench

	require 'benchmark'

	_methods = ("a".."z").to_a

	module A
	module B
	module C
	module D
	module E
	class X

palkan / test.rb

Last active August 29, 2015 14:15

Rails issue #18695

	# Activate the gem you are reporting the issue against.
	unless File.exist?('Gemfile')
	File.write('Gemfile', <<-GEMFILE)
	source 'https://rubygems.org'
	gem 'activerecord', '4.2.0'
	gem 'pg', '0.18'
	gem 'pry-byebug'
	GEMFILE

	system 'bundle'

palkan / main.rb

Last active August 29, 2015 14:16

"Restore" S3 assets after updating Paperclip hash_data

	# Suppose we updated our hash_data for Paperclip
	OLD_HASH = ":class/:attachment/:id/:style"
	NEW_HASH = ":class/:attachment/:id/:style/:updated_at"
	ACL = :public_read

	def restore(r)
	return unless r.file.exists?

	new_key = r.file.path[1..-1]
	r.file.options[:hash_data] = OLD_HASH;

Vladimir Dementyev palkan