Class: Tractive::AttachmentExporter

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

Instance Method Summary collapse

Constructor Details

#initialize(cfg, db) ⇒ AttachmentExporter

Returns a new instance of AttachmentExporter.



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# File 'lib/tractive/attachment_exporter.rb', line 8

def initialize(cfg, db)
  @cfg = cfg
  @db = db
end

Instance Method Details

#export ⇒ Object

export the images from the database into a folder



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# File 'lib/tractive/attachment_exporter.rb', line 40

def export
  output_dir = @cfg.dig("attachments", "export_folder") || "#{Dir.pwd}/tmp/trac"
  trac_url = @cfg.dig("attachments", "url")

  raise("attachments url is required in config.yaml to export attachments.") unless trac_url

  FileUtils.mkdir_p output_dir
  attachments = Attachment.tickets_attachments.for_export

  # using URI::Parser.new because URI.encode raise warning: URI.escape is obsolete
  uri_parser = URI::Parser.new

  attachments.each do |attachment|
    $logger.info "Saving attachments of ticket #{attachment.id}... "
    FileUtils.mkdir_p "#{output_dir}/#{attachment.id}"

    File.binwrite(
      "#{output_dir}/#{attachment.id}/#{attachment.filename}",
      URI.open(uri_parser.escape("#{trac_url}/#{attachment.id}/#{attachment.filename}")).read
    )
  end
end

#generate_script ⇒ Object

Produce a shell script to export attachments, to be executed on the Trac instance



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# File 'lib/tractive/attachment_exporter.rb', line 15

def generate_script
  outfile   = @cfg.dig("attachments", "export_script")
  outfolder = @cfg.dig("attachments", "export_folder")

  raise("missing attachments.export_script entry in configuration") unless outfile
  raise("missing attachments.export_folder entry in configuration") unless outfolder

  attachments     = Attachment.tickets_attachments.for_export
  export_commands = attachments.map do |attachment|
    %(mkdir -p #{outfolder}/#{attachment[:id]}
    trac-admin /trac attachment export ticket:#{attachment[:id]} '#{attachment[:filename]}' > '#{outfolder}/#{attachment[:id]}/#{attachment[:filename]}')
  end

  File.open(outfile, "w") do |f|
    f.puts("mkdir -p #{outfolder}")
    f.puts(export_commands.join("\n"))
  end

  $logger.info "created attachment exporter in #{outfile}"
rescue StandardError => e
  $logger.error(e.message)
  exit(1)
end