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LibraryOfCongress / bagit-python

Work with BagIt packages from Python.
http://libraryofcongress.github.io/bagit-python
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Create Bag w/ bag-size #135

Closed dasuttles closed 5 years ago

dasuttles commented 5 years ago

How would you get the bag-size option to work via a python script? It's no longer being calculated and added to bag-info.txt with the following script and nothing I've tried has worked. I'm new to python, so any help would be appreciated...

My CreateBag.py script: import bagit #create bag bag = bagit.make_bag(DIR, {'Source-Organization': 'XXX', 'Organization-Address' : 'XXX', 'Contact-Phone' : 'XXX', 'Contact-Email' : 'XXX', 'Description' : 'XXX', 'External-Identifier' : 'XXX'})

Thanks!

acdha commented 5 years ago

I don't believe bagit-python has ever calculated that value for you. The Payload-Oxum field is what bagit uses since it's precise bytes – Bag-Size is intended for human readers and will usually be an approximate size. If you wanted the equivalent of du -sh | cut -f1 you could either use subprocess.check_output to run that for you or one of the answers from e.g. https://stackoverflow.com/questions/1392413/calculating-a-directorys-size-using-python/1392549 depending on whether you want to install other Python modules and which versions of Python you need to support.

dasuttles commented 5 years ago

I see, thanks!