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48 lines
1.6 KiB
48 lines
1.6 KiB
# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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import os
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import io
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import tarfile
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import nbformat
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def _jupyter_bundlerextension_paths():
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"""Metadata for notebook bundlerextension"""
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return [{
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# unique bundler name
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"name": "tarball_bundler",
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# module containing bundle function
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"module_name": "notebook.bundler.tarball_bundler",
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# human-readable menu item label
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"label" : "Notebook Tarball (tar.gz)",
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# group under 'deploy' or 'download' menu
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"group" : "download",
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}]
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def bundle(handler, model):
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"""Create a compressed tarball containing the notebook document.
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Parameters
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----------
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handler : tornado.web.RequestHandler
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Handler that serviced the bundle request
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model : dict
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Notebook model from the configured ContentManager
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"""
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notebook_filename = model['name']
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notebook_content = nbformat.writes(model['content']).encode('utf-8')
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notebook_name = os.path.splitext(notebook_filename)[0]
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tar_filename = '{}.tar.gz'.format(notebook_name)
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info = tarfile.TarInfo(notebook_filename)
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info.size = len(notebook_content)
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with io.BytesIO() as tar_buffer:
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with tarfile.open(tar_filename, "w:gz", fileobj=tar_buffer) as tar:
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tar.addfile(info, io.BytesIO(notebook_content))
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handler.set_attachment_header(tar_filename)
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handler.set_header('Content-Type', 'application/gzip')
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# Return the buffer value as the response
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handler.finish(tar_buffer.getvalue())
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