67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
"""
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A Django command that exports a course to a tar.gz file.
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"""
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import shutil
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import tarfile
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from tempfile import mkdtemp
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from textwrap import dedent
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from path import path
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from django.core.management.base import BaseCommand, CommandError
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from xmodule.modulestore.django import modulestore
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from xmodule.contentstore.django import contentstore
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from xmodule.modulestore.xml_exporter import export_to_xml
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class Command(BaseCommand):
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"""
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Export a course to XML. The output is compressed as a tar.gz file
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"""
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args = "<course_id> <output_filename>"
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help = dedent(__doc__).strip()
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def handle(self, *args, **options):
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try:
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course_id = args[0]
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filename = args[1]
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except IndexError:
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raise CommandError("Insufficient arguments")
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export_course_to_tarfile(course_id, filename)
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def export_course_to_tarfile(course_id, filename):
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"""Exports a course into a tar.gz file"""
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tmp_dir = mkdtemp()
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try:
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course_dir = export_course_to_directory(course_id, tmp_dir)
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compress_directory(course_dir, filename)
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finally:
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shutil.rmtree(tmp_dir)
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def export_course_to_directory(course_id, root_dir):
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"""Export course into a directory"""
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store = modulestore()
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course = store.get_course(course_id)
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if course is None:
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raise CommandError("Invalid course_id")
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course_name = course.location.course_id.replace('/', '-')
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export_to_xml(store, None, course.location, root_dir, course_name)
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course_dir = path(root_dir) / course_name
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return course_dir
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def compress_directory(directory, filename):
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"""Compress a directrory into a tar.gz file"""
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mode = 'w:gz'
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name = path(directory).name
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with tarfile.open(filename, mode) as tar_file:
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tar_file.add(directory, arcname=name)
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