hardlinks_mod module

Manage a list of hardlinks for a given backup; Also provides classes for hardlink restores.

class hardlinks_mod.Restore_hardlinks(backup_id)

Bases: object

A class for dealing with restoration of hardlinks

backup_id = None

prior_file_for_hardlink(deviceno, inodeno, filename)

If this isn’t a hardlinked file (in the backup), return None. If this is a hardlinked file, but it’s the first time we’ve encountered the inode, save the filename and return None. If this is a hardlinked file, and we’ve seen the inode number previously, return the filename to which we should hardlink.

class hardlinks_mod.Restore_inode(inodeno, ideal_count)

Bases: object

Class to hold inode data

get_filename()

Return the single filename associated with the first occurrence of this device+inode pair

set_filename(filename)

Associate a single filename with the first occurrence of this device+inode pair

class hardlinks_mod.Save_device(deviceno)

Bases: object

Class to hold data related to a particular “device” on save - in unix/linux filesystems, this means a filesystem

expected_size = None

write(file_)

Write the list of duplicate inodes for this device

class hardlinks_mod.Save_hardlinks(backup_id, expected_size)

Bases: object

Create a collection of duplicate inodes within the devices (filesystems) in which they appear

backup_id = None

close()

Write the device # and inode # data we’ve collected

hardlinks_mod.one()

A simple function that returns one, so our defaultdict can default to 1