glanceclient.common.utils module

class glanceclient.common.utils.GeneratorProxy(wrapped)

Bases: ObjectProxy

next()
property request_ids
property wrapped
class glanceclient.common.utils.IterableWithLength(iterable, length)

Bases: object

next()
class glanceclient.common.utils.RequestIdProxy(wrapped)

Bases: ObjectProxy

next()
property request_ids
property wrapped
glanceclient.common.utils.add_req_id_to_generator()
glanceclient.common.utils.add_req_id_to_object()
glanceclient.common.utils.arg(*args, **kwargs)
glanceclient.common.utils.debug_enabled(argv)
glanceclient.common.utils.endpoint_version_from_url(endpoint, default_version=None)
glanceclient.common.utils.env(*vars, **kwargs)

Search for the first defined of possibly many env vars.

Returns the first environment variable defined in vars, or returns the default defined in kwargs.

glanceclient.common.utils.exit(msg='', exit_code=1)
glanceclient.common.utils.find_resource(manager, name_or_id)

Helper for the _find_* methods.

glanceclient.common.utils.get_data_file(args)
glanceclient.common.utils.get_file_size(file_obj)

Analyze file-like object and attempt to determine its size.

Parameters:

file_obj – file-like object.

Retval:

The file’s size or None if it cannot be determined.

glanceclient.common.utils.has_version(client, version)
glanceclient.common.utils.integrity_iter(iter, checksum)

Check image data integrity.

Raises:

IOError

glanceclient.common.utils.make_size_human_readable(size)
glanceclient.common.utils.memoized_property(fn)
glanceclient.common.utils.on_data_require_fields(data_fields, required=('disk_format', 'container_format'))

Decorator to check commands’ validity

This decorator checks that required fields are present when image data has been supplied via command line arguments or via stdin

On error throws CommandError exception with meaningful message.

Parameters:

  • data_fields (iter) – Which fields’ presence imply image data

  • required (iter) – Required fields

Returns:

function decorator

glanceclient.common.utils.pretty_choice_list(choices)
glanceclient.common.utils.print_cached_images(cached_images)
glanceclient.common.utils.print_dict(d, max_column_width=80)
glanceclient.common.utils.print_dict_list(objects, fields)
glanceclient.common.utils.print_err(msg)
glanceclient.common.utils.print_image(image_obj, human_readable=False, max_col_width=None)
glanceclient.common.utils.print_list(objs, fields, formatters=None, field_settings=None)

Prints a list of objects.

@param objs: Objects to print @param fields: Fields on each object to be printed @param formatters: Custom field formatters

glanceclient.common.utils.safe_header(name, value)
glanceclient.common.utils.save_image(data, path)

Save an image to the specified path.

Parameters:

  • data – binary data of the image

  • path – path to save the image to

glanceclient.common.utils.schema_args(schema_getter, omit=None)
glanceclient.common.utils.serious_integrity_iter(iter, hasher, hash_value)

Check image data integrity using the Glance “multihash”.

Parameters:

  • iter – iterable containing the image data

  • hasher – a hashlib object

  • hash_value – hexdigest of the image data

Raises:

IOError if the hashdigest of the data is not hash_value

glanceclient.common.utils.strip_version(endpoint)

Strip version from the last component of endpoint if present.