Class: Cyberweb::RemoveThisImageFromThatWebpage

Inherits:
Base
  • Object
show all
Defined in:
lib/cyberweb/utility_scripts/remove_this_image_from_that_webpage.rb

Overview

Cyberweb::RemoveThisImageFromThatWebpage

Constant Summary

Constants inherited from Base

Base::HOME_DIRECTORY_OF_THE_USER_X, Base::NAMESPACE

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#be_verbose, #be_verbose?, #cascading_style_sheets_directory?, #cd, #commandline_mode?, #copyright?, #css_comment, #delete_directory, #do_toggle, #e, #echo_raw, #filename?, #full_path_to_image_directory?, #html_colours?, #html_image, #htmlentities, #img_dir?, #infer_the_namespace, #initialize_the_configuration, #is_a_file?, #is_a_video_file?, #is_an_image_file?, #is_on_roebe?, #last_tag_used?, #last_tag_used_first_element?, #last_tag_used_id?, #mkdir, #mode?, #namespace?, #open_in_browser, #opne, #opnn, #remove_comments_from_this_string_but_preserve_CSS_rules, #remove_html, #return_all_directories, #return_date, #return_program_name, #return_pwd, #ruby_header?, #server_base_directory?, #set_commandline_mode, #set_last_tag_used, #update_the_image_directory, #use_this_relative_directory_for_custom_images?, #www_mode?

Methods included from BaseModule::FileRelatedFunctionality

#copy_this_file, #cpr, #delete_file, #filename_without_extension?, #read_file_via_utf8_encoding

Methods included from BaseModule

#attach_these_constants, #base_dir?, #beautiful_url, #cd, #create_the_internal_hash, #doctype?, #ee, #ensure_main_encoding, #esystem, #html_templates, #initialize_the_config_if_the_config_hash_is_empty, #internal_hash?, #log_dir?, #no_http, #random_alphabet_characters, #rarrow?, #rds, #remove_comments_from_this_string, #remove_numbers, #require_the_html_templates, #require_these, #return_file_size_in_kb_of, #return_html_comment, #ruby_sitelib_dir?, #sanitize_this_id, #server_base_directory?, #string_remote_image, #today?, #try_to_require_rack, #try_to_require_the_open_gem, #write_what_into

Methods included from BaseModule::ContentType

#content_type_is_html, #content_type_is_jpeg, #content_type_is_json, #content_type_is_plain_text

Methods included from BaseModule::CommandlineArguments

#append_to_the_commandline_arguments, #commandline_arguments?, #first_argument?, #parse_these_commandline_arguments, #second_argument?, #set_commandline_arguments

Methods included from BaseModule::Colours

#all_html_colours, #lightgreen, #rev, #sdir, #sfancy, #sfile, #simp, #steelblue, #tomato

Constructor Details

#initialize(this_image = nil, that_webpage = nil, run_already = true) ⇒ RemoveThisImageFromThatWebpage

#

initialize

#


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# File 'lib/cyberweb/utility_scripts/remove_this_image_from_that_webpage.rb', line 30

def initialize(
    this_image            = nil,
    that_webpage          = nil,
    run_already           = true
  )
  reset
  @this_image = this_image
  @that_webpage = [that_webpage].flatten.compact
  run if run_already
end

Class Method Details

.[](i = ARGV) ⇒ Object

#

Cyberweb::RemoveThisImageFromThatWebpage[]

#


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# File 'lib/cyberweb/utility_scripts/remove_this_image_from_that_webpage.rb', line 116

def self.[](i = ARGV)
  new(i)
end

Instance Method Details

#backup_this_file(i) ⇒ Object

#

backup_this_file

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# File 'lib/cyberweb/utility_scripts/remove_this_image_from_that_webpage.rb', line 106

def backup_this_file(i)
  target = log_dir?+File.basename(i)
  puts 'Making a backup of the file '+sfile(i)+'. It will be copied'
  puts 'towards '+target+'.'
  copy_file(i, target)
end

#reset ⇒ Object

#

reset (reset tag)

#


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# File 'lib/cyberweb/utility_scripts/remove_this_image_from_that_webpage.rb', line 44

def reset
  super()
  infer_the_namespace
  # ======================================================================= #
  # === @this_image
  # ======================================================================= #
  @this_image   = nil
  # ======================================================================= #
  # === @that_webpage
  # ======================================================================= #
  @that_webpage = []
end

#run ⇒ Object

#

run (run tag)

#


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# File 'lib/cyberweb/utility_scripts/remove_this_image_from_that_webpage.rb', line 60

def run
  if @that_webpage.empty?
    e 'Please supply two arguments to this class:'
    e
    e '  (1) the image that you wish to remove from the .html file'
    e '  (2) the local file you want to work on'
    e
    exit
  end
  @that_webpage.each {|this_webpage|
    if this_webpage and File.exist?(this_webpage)
      puts ::Colours.rev+'Now working on the file '+
           sfile(this_webpage)+':'
      dataset = File.read(this_webpage)
      if dataset.include?(@this_image) and dataset.include?('<img')
        # Ok in this case we can modify the file as-is.
        puts rev+'Yes, the dataset contains the image '+
             ::Colours.steelblue(@this_image)+rev+'.'
        dataset = dataset.dup if dataset.frozen?
        new_dataset = ''.dup
        # ================================================================= #
        # See: https://rubular.com/r/VsIipzUOSCDhA7
        # ================================================================= #
        # regex = /(<img.+src=".+" \/>)/
        regex = /(<img.+src="#{@this_image}" \/>)/
        dataset.split("\n").each {|line|
          if line.include?('<img') and line.include?(@this_image)
            line.gsub!(regex, '')
          end
          new_dataset << "#{line}\n"
        }
        backup_this_file(this_webpage)
        write_what_into(new_dataset, this_webpage)
      else
        puts "No entry called #{::Colours.steelblue(@this_image)} "\
             "was found."
      end
    else
      opnn; no_file_exists_at(this_webpage)
    end
  }
end