mdw@git.distorted.org.uk Git - rsync-backup/blob - debian/control

   1 Source: rsync-backup
   2 Section: utils
   3 Priority: extra
   4 Maintainer: Mark Wooding <mdw@distorted.org.uk>
   5 XS-Python-Version: >= 2.5
   6 Build-Depends: pkg-config, mlib-dev (>= 2.2.1), debhelper (>= 10), python
   7 Standards-Version: 3.1.1
   8
   9 Package: fshash
  10 Architecture: all
  11 Depends: python
  12 Description: Calculate a digest of a filesystem.
  13  The `fshash' program generates digests of filesystems.  It aims to provide
  14  three properties:
  15  .
  16    * Completeness: the digest describes everything `interesting' about the
  17      filesystem, such that two filesystems which are interestingly different
  18      will have different digests.
  19  .
  20    * Canonicalness: if two filesystems aren't different in any interesting
  21      way, then their digests should be identical.
  22  .
  23    * Readability: given two subtly different filesystems, it should be easy
  24      for a human equipped with digests for them and diff(1) to work out what
  25      the differences actually are.
  26  .
  27  The digests include cryptographic hashes of the files.  These can take time
  28  to compute, so `fshash' can keep a cache of hashes.
  29
  30 Package: rfreezefs
  31 Architecture: linux-any
  32 Depends: ${shlibs:Depends}
  33 Recommends: ssh-server
  34 Description: Freeze filesystems safely under remote control.
  35  Filesystems can be `frozen', i.e., placed in a consistent state, with write
  36  operations delayed.  This is useful when taking snapshots, and LVM (for
  37  example) freezes filesystems mounted on a logical volume automatically when
  38  taking a snapshot.  This doesn't work if the filesystem is mounted on a
  39  separate machine from the one hosting the block device, e.g., if the volume
  40  is provided by a VM host to its guest, or as a remote block device.
  41  .
  42  The `rfreezefs' program explicitly freezes a filesystem so that a consistent
  43  snapshot can be taken.  It goes to considerable lengths to avoid unpleasant
  44  conditions such as deadlocks while filesystems are frozen.
  45
  46 Package: rsync-backup
  47 Architecture: all
  48 Depends: rsync, openssh-client, fshash
  49 Recommends: lvm2
  50 Suggests: rfreezefs
  51 Description: Yet another `rsync --link-dest' backup script.
  52  It uses rsync's ability to create hardlinks from (apparently) similar
  53  existing local trees to make incremental dumps efficient, even from remote
  54  sources.  Restoring files is easy because the backups created are just
  55  directories full of files, exactly as they were on the source -- and this is
  56  verified using `fshash'.
  57  .
  58  The script does more than just running rsync.  It is also responsible for
  59  creating and removing snapshots of volumes to be backed up, and expiring old
  60  dumps according to a user-specified retention policy.
  61  .
  62  The `fshash' package is required on the server and all of the clients.  The
  63  `rfreezefs' package may be useful on clients which are VM guests.