BagIt Importer

BagIt Importer

Bulkrax can import valid BagIt bags, either individually, or multiple bags in a single folder. The bag, or folder of bags may be supplied in a zip file.

The Bag(s)

Bulkrax assumes that each bag will contain one or more works, with each work having an individual metadata file and zero, one or more data files.

A Single Bag

This single bag containing two images and one metadata file would be imported as a single Work with two files attached. The metadata file (my_metadata.csv) can be at the top level as it is here, or it can be in the data folder.

my_bag
  data
    my_image.tif
    my_other_image.jpg
  my_metadata.csv
  (bagit files)

Multiple Bags

folder
  my_bag
    data
      my_image.tif
    my_metadata.csv
    (bagit files)
  my_second_bag
    (structured as per my_bag)
  my_third_bag
    (ditto)

Multiple Works

folder
  my_bag
    data
      work1
        my_image1.tif
        my_metadata.csv
      work2
        my_image2.tif
        my_metadata.csv
      work3
        my_image3.tif
        my_metadata.csv
    (bagit files)

Metadata

• There MUST be one metadata file per work. If a CSV is supplied, only the first line (after the header) will be processed.
• If there are multiple bags, or multiple works, each metadata file MUST have the same filename and MUST be co-located with the data files (as per the example above).
• Metadata can be supplied as RDF or CSV.