Module: Mkalias

Defined in:
lib/mkalias.rb,
lib/mkalias/version.rb

Constant Summary collapse

BASHRC_PATH = 
"#{File.expand_path('~')}/.bashrc"
VERSION = 
"0.1.4"

Class Method Summary collapse

Class Method Details

.list_alias(file_path = BASHRC_PATH) ⇒ Object 



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# File 'lib/mkalias.rb', line 28

def self.list_alias(file_path=BASHRC_PATH)
  alias_names = Set.new

  alias_regex = /\bmkalias_(.*)[(]/

  alias_functions = File.foreach(file_path).grep(alias_regex)
  alias_functions.each do |function|
    result = function.match(alias_regex)
    alias_names << result.captures.first if result
  end

  alias_names.to_a
end

.new_alias(alias_name, commands, file_path = BASHRC_PATH) ⇒ Object 



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# File 'lib/mkalias.rb', line 8

def self.new_alias(alias_name, commands, file_path=BASHRC_PATH)
  alias_names = Mkalias.list_alias(file_path)
  return false if alias_names.include?(alias_name)

  commands = commands.join('; ') if commands.kind_of?(Array)
  commands = commands.gsub('#', '$')

  function_name = "mkalias_#{alias_name}"
  bash_function = "function #{function_name}(){ #{commands}; }"
  bash_alias = "alias #{alias_name}='#{function_name}'"

  open(file_path, 'a') do |file|
    file.puts("\n")
    file.puts(bash_alias)
    file.puts(bash_function)
  end

  true
end

.remove_alias(alias_name, file_path = BASHRC_PATH) ⇒ Object 



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# File 'lib/mkalias.rb', line 59

def self.remove_alias(alias_name, file_path=BASHRC_PATH)
  alias_names = Mkalias.list_alias(file_path)
  return false unless alias_names.include?(alias_name)

  alias_regex = /\bmkalias_#{alias_name}[(']/

  lines = File.readlines(file_path).reject{ |line| line =~ alias_regex }

  File.open(file_path, "w"){ |f| lines.each { |line| f.puts line } }

  return true
end

.show_alias(alias_name, file_path = BASHRC_PATH) ⇒ Object 



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# File 'lib/mkalias.rb', line 42

def self.show_alias(alias_name, file_path=BASHRC_PATH)
  alias_names = Mkalias.list_alias(file_path)
  return nil unless alias_names.include?(alias_name)

  alias_regex = /\bmkalias_#{alias_name}[(]/
  function_regex = /[{](.*)[;]/

  alias_functions = File.foreach(file_path).grep(alias_regex)

  alias_functions.each do |function|
    result = function.match(function_regex)
    return result.captures.first.strip if result
  end

  nil
end