Class: DiscourseEmojis::ZipProcessor

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

Defined Under Namespace

Classes: DownloadError, ExtractionError

Class Method Summary collapse

Class Method Details

.cleanup(paths) ⇒ Object 



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# File 'lib/discourse_emojis/zip_processor.rb', line 80

def self.cleanup(paths)
  paths.each { |path| FileUtils.remove_entry(path) if path && File.exist?(path) }
end

.download_remote_file(url, destination) ⇒ Object 



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# File 'lib/discourse_emojis/zip_processor.rb', line 44

def self.download_remote_file(url, destination)
  uri = URI(url)
  Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == "https") do |http|
    http.request(Net::HTTP::Get.new(uri)) do |response|
      case response
      when Net::HTTPRedirection
        return download_remote_file(response["location"], destination)
      when Net::HTTPSuccess
        File.binwrite(destination, response.body)
      else
        raise DownloadError, "Failed to download: #{response.code} #{response.message}"
      end
    end
  end
end

.extract(zip_path, destination) ⇒ Object 



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# File 'lib/discourse_emojis/zip_processor.rb', line 60

def self.extract(zip_path, destination)
  FileUtils.mkdir_p(destination)

  Zip::File.open(zip_path) do |zip_file|
    zip_file.each { |entry| extract_entry(entry, destination) }
  end
rescue Zip::Error => e
  raise ExtractionError, "Failed to extract zip file: #{e.message}"
rescue StandardError => e
  raise ExtractionError, "Error extracting zip: #{e.message}"
end

.extract_entry(entry, destination) ⇒ Object 



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# File 'lib/discourse_emojis/zip_processor.rb', line 72

def self.extract_entry(entry, destination)
  entry_path = File.join(destination, entry.name)
  return if File.exist?(entry_path)

  FileUtils.mkdir_p(File.dirname(entry_path))
  entry.extract(entry_path)
end

.remote_url?(url) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/discourse_emojis/zip_processor.rb', line 40

def self.remote_url?(url)
  url.start_with?("http", "https")
end

.with_extracted_files(url, &block) ⇒ Object 



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# File 'lib/discourse_emojis/zip_processor.rb', line 15

def self.with_extracted_files(url, &block)
  zip_path = File.join(Dir.tmpdir, File.basename(url))
  extract_path = Dir.mktmpdir

  begin
    download(url, zip_path)
    extract(zip_path, extract_path)
    yield(extract_path)
  ensure
    cleanup([extract_path, zip_path])
  end
end