Class: Leg::Commands::BaseCommand

Inherits:
Object
  • Object
show all
Defined in:
lib/leg/commands/base_command.rb

Direct Known Subclasses

Diff, Help, Pieces, Ref, Repo, Undiff, Unrepo

Constant Summary collapse

ERROR_MSG = 
{
  config: {
    true: "You are not in a leg working directory.",
    false: "You are already in a leg working directory."
  },
  steps_folder: {
    true: "There is no steps folder.",
    false: "There is already a steps folder."
  },
  steps: {
    true: "There are no steps in the steps folder."
  },
  repo: {
    true: "There is no repo folder.",
    false: "There is already a repo folder."
  },
  diff: {
    true: "There is no steps.diff file."
  }
}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args, config) ⇒ BaseCommand

Returns a new instance of BaseCommand.



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# File 'lib/leg/commands/base_command.rb', line 2

def initialize(args, config)
  @args = args
  @config = config
end

Class Method Details

.inherited(subclass) ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 11

def self.inherited(subclass)
  Leg::Commands::LIST << subclass
end

.name ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/leg/commands/base_command.rb', line 7

def self.name; raise NotImplementedError; end

.summary ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/leg/commands/base_command.rb', line 8

def self.summary; raise NotImplementedError; end

Instance Method Details

#current_or_latest_step ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 84

def current_or_latest_step
  current_step || latest_step
end

#current_step ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 74

def current_step
  if @config[:step_path]
    File.basename(@config[:step_path])
  end
end

#latest_step ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 80

def latest_step
  steps.last
end

#needs!(*whats) ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 36

def needs!(*whats)
  options = whats.pop if whats.last.is_a? Hash
  options ||= {}

  yes = Array(whats).flatten.map { |w| [w, true] }
  no = Array(options[:not]).map { |w| [w, false] }

  (yes + no).each do |what, v|
    valid = false
    case what
    when :config
      valid = true if @config
    when :steps_folder
      valid = true if File.exist?(File.join(@config[:path], "steps"))
    when :steps
      valid = true if steps.length > 0
    when :repo
      valid = true if File.exist?(File.join(@config[:path], "repo"))
    when :diff
      valid = true if File.exist?(File.join(@config[:path], "steps.diff"))
    else
      raise NotImplementedError
    end

    if valid != v
      puts "Error: " + ERROR_MSG[what][v.to_s.to_sym]
      exit!
    end
  end
end

#run ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/leg/commands/base_command.rb', line 9

def run; raise NotImplementedError; end

#select_step(step, &block) ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 99

def select_step(step, &block)
  puts "Selecting step: #{step}"
  FileUtils.cd(step_path(step), &block)
end

#step_name(step) ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 88

def step_name(step)
  parts = step.split('-')
  if parts.length > 1
    parts[1..-1].join('-')
  end
end

#step_path(step) ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 95

def step_path(step)
  File.join(@config[:path], "steps", step)
end

#steps ⇒ Object 



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# File 'lib/leg/commands/base_command.rb', line 67

def steps
  @steps ||= Dir[File.join(@config[:path], "steps/*")].map do |f|
    name = File.basename(f)
    name if File.directory?(f) && name =~ /\A\d+(\.\d+)*(-\w+)*\z/
  end.compact.sort_by { |s| s.split(".").map(&:to_i) }.reject { |s| s.to_i.zero? }
end