Class: Nanoc::CLI::Commands::Compile::DiffGenerator Private

Inherits:
Listener
  • Object
show all
Defined in:
lib/nanoc/cli/commands/compile.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Generates diffs for every output file written

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Listener

#initialize, #start_safely, #stop_safely

Constructor Details

This class inherits a constructor from Nanoc::CLI::Commands::Compile::Listener

Class Method Details

.enable_for?(command_runner) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean)

See Also:



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# File 'lib/nanoc/cli/commands/compile.rb', line 70

def self.enable_for?(command_runner)
  command_runner.site.config[:enable_output_diff]
end

Instance Method Details

#start ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

See Also:



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# File 'lib/nanoc/cli/commands/compile.rb', line 75

def start
  require 'tempfile'
  setup_diffs
  old_contents = {}
  Nanoc::Int::NotificationCenter.on(:will_write_rep, self) do |rep, path|
    old_contents[rep] = File.file?(path) ? File.read(path) : nil
  end
  Nanoc::Int::NotificationCenter.on(:rep_written, self) do |rep, path, _is_created, _is_modified|
    unless rep.binary?
      new_contents = File.file?(path) ? File.read(path) : nil
      if old_contents[rep] && new_contents
        generate_diff_for(path, old_contents[rep], new_contents)
      end
      old_contents.delete(rep)
    end
  end
end

#stop ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

See Also:



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# File 'lib/nanoc/cli/commands/compile.rb', line 94

def stop
  super

  Nanoc::Int::NotificationCenter.remove(:will_write_rep, self)
  Nanoc::Int::NotificationCenter.remove(:rep_written, self)

  teardown_diffs
end