def download_image_files(self, image_id, destdir):
"""
Downloads the manifest.xml and all AMI parts for image_id to destdir
"""
if not os.path.isdir(destdir):
raise exception.BaseException(
"destination directory '%s' does not exist" % destdir)
widgets = [
'file: ',
progressbar.Percentage(), ' ',
progressbar.Bar(marker=progressbar.RotatingMarker()), ' ',
progressbar.ETA(), ' ',
progressbar.FileTransferSpeed()
]
files = self.get_image_files(image_id)
def _dl_progress_cb(trans, total):
pbar.update(trans)
log.info("Downloading image: %s" % image_id)
for file in files:
widgets[0] = "%s:" % file.name
pbar = progressbar.ProgressBar(widgets=widgets,
maxval=file.size).start()
file.get_contents_to_filename(os.path.join(destdir, file.name),
cb=_dl_progress_cb)
pbar.finish()
def progress_bar(self):
if not self._progress_bar:
widgets = ['FileTransfer: ', ' ', progressbar.Percentage(), ' ',
progressbar.Bar(marker=progressbar.RotatingMarker()),
' ', progressbar.ETA(), ' ',
progressbar.FileTransferSpeed()]
pbar = progressbar.ProgressBar(widgets=widgets,
maxval=1,
force_update=True)
self._progress_bar = pbar
return self._progress_bar