Class: Machinery::CompareTask

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

Overview

Copyright © 2013-2016 SUSE LLC

This program is free software; you can redistribute it and/or modify it under the terms of version 3 of the GNU General Public License as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, contact SUSE LLC.

To contact SUSE about this file by physical or electronic mail, you may find current contact information at www.suse.com

Instance Method Summary collapse

Instance Method Details

#compare(description1, description2, scopes, options = {}) ⇒ Object 



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# File 'lib/compare_task.rb', line 19

def compare(description1, description2, scopes, options = {})
  if options[:show_html]
    render_html_comparison(description1, description2, scopes, options)
  else
    output = render_comparison(description1, description2, scopes, options)

    Machinery::Ui.puts output
  end
end

#render_comparison(description1, description2, scopes, options = {}) ⇒ Object 



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# File 'lib/compare_task.rb', line 53

def render_comparison(description1, description2, scopes, options = {})
  output = ""
  identical = true
  identical_scopes = []
  common_scopes = false
  scopes.each do |scope|
    if description1[scope] && description2[scope]
      comparison = Machinery::Comparison.compare_scope(description1, description2, scope)

      output += Machinery::Ui::Renderer.for(scope).render_comparison(comparison, options)

      if comparison.only_in1 || comparison.only_in2 || comparison.changed
        identical = false
      else
        identical_scopes << scope
      end
      common_scopes = true
    else
      output += Machinery::Ui::Renderer.for(scope).render_comparison_missing_scope(
        description1, description2
      )
      identical = false if description1[scope] || description2[scope]
    end
  end
  if identical && common_scopes
    output = "\n" + output unless output.empty?
    output = "Compared descriptions are identical." + output
  elsif !identical_scopes.empty?
    phrase = Machinery.pluralize(identical_scopes.count, "scope is", "scopes are")
    output += "Following #{phrase} identical in both descriptions: " + identical_scopes.join(",")
  end

  output
end

#render_html_comparison(description1, description2, scopes, options) ⇒ Object 



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

def render_html_comparison(description1, description2, scopes, options)
  Machinery::LocalSystem.validate_existence_of_command("xdg-open", "xdg-utils")

  url = "http://#{options[:ip]}:#{options[:port]}/compare/" \
    "#{CGI.escape(description1.name)}/#{CGI.escape(description2.name)}"

  Machinery::Ui.use_pager = false
  Machinery::Ui.puts <<EOF
Trying to start a web server for serving the comparison result on #{url}.

The server can be closed with Ctrl+C.
EOF

  server = Machinery::Html.run_server(
    description1.store,
    port: options[:port],
    ip:   options[:ip]
  ) do
    Machinery::LoggedCheetah.run("xdg-open", url)
  end

  server.join # Wait until the user cancelled the blocking webserver
end