Class: Nanoc3::CLI::Commands::Update

Inherits:
Nanoc3::CLI::Command show all
Defined in:
lib/nanoc3/cli/commands/update.rb

Instance Attribute Summary

Attributes inherited from Nanoc3::CLI::Command

#arguments, #command, #options

Instance Method Summary collapse

Methods inherited from Nanoc3::CLI::Command

#call, call, #initialize, #site

Constructor Details

This class inherits a constructor from Nanoc3::CLI::Command

Instance Method Details

#run ⇒ Object 



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# File 'lib/nanoc3/cli/commands/update.rb', line 26

def run
  # Check arguments
  if arguments.size != 0
    $stderr.puts "usage: #{usage}"
    exit 1
  end

  # Make sure we are in a nanoc site directory
  self.require_site

  # Set VCS if possible
  self.set_vcs(options[:vcs])

  # Check for -y switch
  unless options.has_key?(:yes)
    $stderr.puts '*************'
    $stderr.puts '** WARNING **'
    $stderr.puts '*************'
    $stderr.puts
    $stderr.puts 'Are you absolutely sure you want to update the ' +
                 'content for this site? Updating the site content ' +
                 'will change the structure of existing data. This ' +
                 'operation is destructive and cannot be reverted. ' +
                 'Please do not interrupt this operation; doing so can ' +
                 'result in data loss. As always, consider making a ' +
                 'backup copy.'
    $stderr.puts
    $stderr.puts 'If this nanoc site is versioned using a VCS ' +
                 'supported by nanoc, consider using the --vcs option ' +
                 'to have nanoc perform add/delete/move operations ' +
                 'using the specified VCS. To get a list of VCSes ' +
                 'supported by nanoc, issue the "info" command.'
    $stderr.puts
    $stderr.puts 'To continue, use the -y/--yes option, like "nanoc3 ' +
                 'update -y".'
    exit 1
  end

  # Update
  self.site.data_sources.each do |data_source|
    data_source.update
  end
end