async def revisions(self, path, **kwargs):
if path.identifier is None:
raise exceptions.NotFoundError(str(path))
async with self.request(
'GET',
self.build_url('files', path.identifier, 'revisions'),
expects=(200, ),
throws=exceptions.RevisionsError,
) as resp:
data = await resp.json()
if data['items']:
return [
GoogleDriveRevision(item) for item in reversed(data['items'])
]
metadata = await self.metadata(path, raw=True)
# Use dummy ID if no revisions found
return [
GoogleDriveRevision({
'modifiedDate':
metadata['modifiedDate'],
'id':
data['etag'] + settings.DRIVE_IGNORE_VERSION,
})
]
async def revisions(
self,
path: GoogleDrivePath, # type: ignore
**kwargs) -> List[GoogleDriveRevision]:
"""Returns list of revisions for the file at ``path``.
Google Drive will not allow a user to view the revision list of a file if they only have
view or commenting permissions. It will return a 403 Unathorized. If that happens, then
we construct a recognizable dummy revision based off of the metadata of the current file
version.
Note: though we explicitly support the case where the revision list is empty, I have yet to
see it in practice. The current handling is based on historical behavior.
:param GoogleDrivePath path: the path of the file to fetch revisions for
:rtype: `list(GoogleDriveRevision)`
:return: list of `GoogleDriveRevision` objects representing revisions of the file
"""
if path.identifier is None:
raise exceptions.NotFoundError(str(path))
async with self.request(
'GET',
self.build_url('files', path.identifier, 'revisions'),
expects=(
200,
403,
),
throws=exceptions.RevisionsError,
) as resp:
data = await resp.json()
has_revisions = resp.status == 200
if has_revisions and data['items']:
return [
GoogleDriveRevision(item) for item in reversed(data['items'])
]
# Use dummy ID if no revisions found
metadata = await self.metadata(path, raw=True)
revision = {
'modifiedDate': metadata['modifiedDate'], # type: ignore
'id': metadata['etag'] +
pd_settings.DRIVE_IGNORE_VERSION, # type: ignore
}
return [
GoogleDriveRevision(revision),
]
def test_get_revisions(self, provider):
item = fixtures.list_file['items'][0]
path = WaterButlerPath('/birdie.jpg', _ids=('doesntmatter', item['id']))
revisions_url = provider.build_url('files', item['id'], 'revisions')
aiohttpretty.register_json_uri('GET', revisions_url, body=fixtures.revisions_list)
result = yield from provider.revisions(path)
expected = [
GoogleDriveRevision(each)
for each in fixtures.revisions_list['items']
]
assert result == expected
def test_get_revisions_no_revisions(self, provider):
item = fixtures.list_file['items'][0]
metadata_url = provider.build_url('files', item['id'])
revisions_url = provider.build_url('files', item['id'], 'revisions')
path = WaterButlerPath('/birdie.jpg', _ids=('doesntmatter', item['id']))
aiohttpretty.register_json_uri('GET', metadata_url, body=item)
aiohttpretty.register_json_uri('GET', revisions_url, body=fixtures.revisions_list_empty)
result = yield from provider.revisions(path)
expected = [
GoogleDriveRevision({
'modifiedDate': item['modifiedDate'],
'id': fixtures.revisions_list_empty['etag'] + ds.DRIVE_IGNORE_VERSION,
})
]
assert result == expected
def test_revision_metadata(self, revision_fixtures):
item = revision_fixtures['revision_metadata']
parsed = GoogleDriveRevision(item)
assert parsed.version_identifier == 'revision'
assert parsed.version == item['id']
assert parsed.modified == item['modifiedDate']
