Class: ScriptFinder::Finder

Inherits:
Object
  • Object
show all
Defined in:
lib/script_finder/script_finder.rb

Instance Method Summary collapse

Constructor Details

#initialize(command, bin_dir = nil) ⇒ Finder

Returns a new instance of Finder.



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# File 'lib/script_finder/script_finder.rb', line 12

def initialize(command, bin_dir = nil)
  @command = command
  self.bin_dir = bin_dir
end

Instance Method Details

#bin_dir ⇒ Object 



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# File 'lib/script_finder/script_finder.rb', line 21

def bin_dir
  @bin_dir ||= DEFAULT_BIN_DIR
end

#bin_dir=(dir) ⇒ Object 



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# File 'lib/script_finder/script_finder.rb', line 17

def bin_dir=(dir)
  @bin_dir = dir
end

#command ⇒ Object 



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# File 'lib/script_finder/script_finder.rb', line 25

def command
  @command
end

#execute_command ⇒ Object 



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# File 'lib/script_finder/script_finder.rb', line 29

def execute_command
  dir = find_bin_dir
  
  if dir
    cmd = find_command_in_dir(dir)
    if cmd.nil?
      cmd_not_found
    elsif cmd.is_a?(Array)
      too_many_cmds_found(cmd)
    else
      command.shift
      cmd_string = "#{cmd} #{commands_to_command_string(command)}".strip
      puts "--> calling '#{cmd_string}'"
      exec cmd_string
    end
  else
    bin_dir_not_found
  end
end

#find_bin_dir(starting_dir = '.', last_dir = nil) ⇒ Object 



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# File 'lib/script_finder/script_finder.rb', line 49

def find_bin_dir(starting_dir = '.', last_dir = nil)
  starting_dir = File.expand_path(starting_dir)

  Dir.chdir(starting_dir) do
    if starting_dir == last_dir
      nil
    elsif bin_dir_exists_in_pwd?
      File.join(starting_dir, bin_dir)
    else
      find_bin_dir('..', starting_dir)
    end
  end
end

#find_command_in_dir(dir) ⇒ Object 



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# File 'lib/script_finder/script_finder.rb', line 63

def find_command_in_dir(dir)
  cmd = command.first
  Dir.chdir(dir) do
    if cmd and File.executable?(cmd)
      possibles = [cmd]
    else
      possibles = Dir.glob("#{cmd}*").select {|f| File.executable?(f)}
    end
    
    if possibles.size == 0
      nil
    elsif possibles.size == 1
      File.expand_path(possibles.first)
    else
      possibles
    end
  end
end

#unique_prefixes(possibles, prefixes = {}) ⇒ Object 



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# File 'lib/script_finder/script_finder.rb', line 82

def unique_prefixes(possibles, prefixes = {})
  if prefixes.values.uniq.size < possibles.size
    possibles.each do |cmd|
      prefixes[cmd] ||= ""
      if prefix_is_not_unique?(cmd, prefixes[cmd], possibles)
        prefixes[cmd] += cmd[prefixes[cmd].size,1]
      end
    end
    unique_prefixes(possibles, prefixes)
  else
    prefixes
  end
end