Class: Robro::Download

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

Defined Under Namespace

Classes: Error

Constant Summary collapse

FILTERS = 
[
  #--2020-11-10 22:30:31--  https://kubuntu.org/wp-content/uploads/2020/10/6ac0/GroovyBannerv4-1024x273.png
  /^--\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}--  http/,
  #Resolving kubuntu.org (kubuntu.org)... 162.213.33.214
  /^Resolving /,
  #Connecting to kubuntu.org (kubuntu.org)|162.213.33.214|:443... connected.
  /^Connecting /,
  #Reusing existing connection to kubuntu.org:443.
  /^Reusing /,
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(url) ⇒ Download

Returns a new instance of Download.



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# File 'lib/robro/download.rb', line 9

def initialize(url)
  @url = url.sub /^http:/, 'https:'
  Robro.logger.debug "Attempt to download: #{@url}"
end

Instance Attribute Details

#details ⇒ Object (readonly)

Returns the value of attribute details.



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# File 'lib/robro/download.rb', line 7

def details
  @details
end

Instance Method Details

#downloaded? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/robro/download.rb', line 56

def downloaded?
  success?
end

#error ⇒ Object 



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# File 'lib/robro/download.rb', line 64

def error
  return "#{details['error_code']}: #{details['error_text']}" unless details['error_code'].nil?
  return "#{details['error_text']}" unless details['error_text'].nil?
  return "Command execution failed with exit code: #{details[:exit_status].exitstatus}" unless details[:exit_status].success?

  nil
end

#run(&block) ⇒ Object 



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# File 'lib/robro/download.rb', line 25

def run(&block)
  @details = {}

  result = false

  Open3.popen2e(
    { "LANG" => 'C'},
    'wget', '--continue', '--content-disposition', '--progress=dot:mega', @url,
  ) do |stdin, stdout_and_err, thread|
    stdout_and_err.each do |line|
      line.chomp!
      next if line.empty?

      data = extract_details line

      unless data.nil?
        data['filename'] = eval "\"#{data['filename']}\"" unless data['filename'].nil? # Handle escaped UTF-8 chars
        @details.merge! data
        block.call data, @details
      else
        puts "==='#{line}'===" unless filtred?(line)
      end
    end

    exit_status = thread.value
    @details.merge!({ exit_status: exit_status })

    raise Error.new "Error while downloading: #{error}" unless error.nil?
  end
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/robro/download.rb', line 60

def success?
  error.nil?
end