Class: Montage::Commands::Generate

Inherits:
Object
  • Object
show all
Extended by:
Montage::Commands
Defined in:
lib/montage/commands/generate.rb

Overview

Generates sprites for a project.

Constant Summary collapse

RESET =

Terminal reset code; removes any content on the current line and moves the cursor back to the beginning.

"\r\e[0K"
GLYPHS =

Glyphs used when doing long-running processes.

%w( ~ \\ | / )

Constants included from Montage::Commands

BLANK

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Montage::Commands

config, exit, parse_options!

Constructor Details

#initialize(project, force) ⇒ Generate

Creates a new Generate instance.

Parameters:

  • project (Montage::Project) —

    The project whose sprites are to be generated.

  • force (Boolean) —

    Rengerate sprites, even if they haven’t been changed.



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# File 'lib/montage/commands/generate.rb', line 57

def initialize(project, force)
  @project, @force, @generated = project, force, []
end

Class Method Details

.run(argv) ⇒ Object

Given a project, generates sprites.

Parameters:

  • argv (Array) —

    The arguments given on the command line.



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# File 'lib/montage/commands/generate.rb', line 19

def self.run(argv)
  # If there are any arguments, the first one is a path to a montage
  # config file.
  if argv.first and not Pathname.new(argv.first).file?
    say color(<<-ERROR.compress_lines, :red)
      Couldn't find `#{argv.first}' configuration file. Are you
      sure you got the path right?
    ERROR

    exit(1)
  end


  new(Montage::Project.find(argv.first || Dir.pwd),
      Montage::Commands.config[:force]).run!

rescue Montage::MissingProject
  say color(<<-ERROR.compress_lines, :red)
    Couldn't find a Montage project in the current directory. If
    you want to create a new project here, run `montage init'.
  ERROR

  exit(1)

rescue Montage::MissingSource, Montage::TargetNotWritable => e
  say Montage::Commands::BLANK
  say color(e.message.compress_lines, :red)

  exit(1)
end

Instance Method Details

#run! ⇒ Object

Runs the generator, saving the sprites and cache.



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# File 'lib/montage/commands/generate.rb', line 63

def run!
  if generate_sprites!
    optimise_with_pngout!
    write_cache!
    write_sass!
    warn_deviants!
  end
end