68 lines
1.6 KiB
Ruby
68 lines
1.6 KiB
Ruby
require 'fileutils'
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class Noprocrast
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class << self
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def default_hosts
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['news.ycombinator.com', 'twitter.com', 'facebook.com', 'reddit.com']
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end
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def deny_file_path
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File.expand_path("~/.noprocast")
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end
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def current_hosts
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setup_deny_file_if_required!
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File.read(deny_file_path).split(/\n/).select { |line| line.match(/[a-zA-Z0-9]/) }.map(&:strip)
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end
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def hosts_file_content
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File.read("/etc/hosts")
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end
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def activate!
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backup_hosts_file_if_required!
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deactivate! # ensure that /etc/hosts is clean
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File.open("/etc/hosts", 'a') do |file|
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file << "\n\n# noprocrast start\n#{current_hosts.map { |host| "127.0.0.1 #{host}" }.join("\n")}\n# noprocrast end"
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end
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system "dscacheutil -flushcache" # only for OSX >= 10.5: flush the DNS cache
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end
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def deactivate!
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clean_hosts = hosts_file_content.gsub(/(\n\n)?\# noprocrast start.*\# noprocrast end/m, '')
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File.open("/etc/hosts", 'w') do |file|
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file << clean_hosts
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end
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end
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def active?
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hosts_file_content.match(/\# noprocrast start/)
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end
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def status_message
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active? ? "noprocrast enabled for #{current_hosts.size} hosts" : "noprocrast disabled"
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end
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def backup_hosts_file_if_required!
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unless File.exists?("/etc/.hosts.noprocrastbackup")
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FileUtils.cp("/etc/hosts", "/etc/.hosts.noprocrastbackup")
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end
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end
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def setup_deny_file_if_required!
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unless File.exists?(deny_file_path)
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File.open(deny_file_path, 'w') do |file|
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file << default_hosts.join("\n")
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end
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end
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end
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def edit!
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setup_deny_file_if_required!
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editor = ENV['EDITOR'] || 'vi'
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system "#{editor} #{deny_file_path}"
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end
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end
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end
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