git-annex/doc/tips/untrusted_repositories.mdwn
Joey Hess b6d46c212e git-annex (5.20140402) unstable; urgency=medium
* unannex, uninit: Avoid committing after every file is unannexed,
    for massive speedup.
  * --notify-finish switch will cause desktop notifications after each
    file upload/download/drop completes
    (using the dbus Desktop Notifications Specification)
  * --notify-start switch will show desktop notifications when each
    file upload/download starts.
  * webapp: Automatically install Nautilus integration scripts
    to get and drop files.
  * tahoe: Pass -d parameter before subcommand; putting it after
    the subcommand no longer works with tahoe-lafs version 1.10.
    (Thanks, Alberto Berti)
  * forget --drop-dead: Avoid removing the dead remote from the trust.log,
    so that if git remotes for it still exist anywhere, git annex info
    will still know it's dead and not show it.
  * git-annex-shell: Make configlist automatically initialize
    a remote git repository, as long as a git-annex branch has
    been pushed to it, to simplify setup of remote git repositories,
    including via gitolite.
  * add --include-dotfiles: New option, perhaps useful for backups.
  * Version 5.20140227 broke creation of glacier repositories,
    not including the datacenter and vault in their configuration.
    This bug is fixed, but glacier repositories set up with the broken
    version of git-annex need to have the datacenter and vault set
    in order to be usable. This can be done using git annex enableremote
    to add the missing settings. For details, see
    http://git-annex.branchable.com/bugs/problems_with_glacier/
  * Added required content configuration.
  * assistant: Improve ssh authorized keys line generated in local pairing
    or for a remote ssh server to set environment variables in an
    alternative way that works with the non-POSIX fish shell, as well
    as POSIX shells.

# imported from the archive
2014-04-02 21:42:53 +01:00

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Markdown

Suppose you have a USB thumb drive and are using it as a git annex
repository. You don't trust the drive, because you could lose it, or
accidentally run it through the laundry. Or, maybe you have a drive that
you know is dying, and you'd like to be warned if there are any files
on it not backed up somewhere else. Maybe the drive has already died
or been lost.
You can let git-annex know that you don't trust a repository, and it will
adjust its behavior to avoid relying on that repositories's continued
availability.
# git annex untrust usbdrive
untrust usbdrive ok
Now when you do a fsck, you'll be warned appropriately:
# git annex fsck .
fsck my_big_file
Only these untrusted locations may have copies of this file!
05e296c4-2989-11e0-bf40-bad1535567fe -- portable USB drive
Back it up to trusted locations with git-annex copy.
failed
Also, git-annex will refuse to drop a file from elsewhere just because
it can see a copy on the untrusted repository.
It's also possible to tell git-annex that you have an unusually high
level of trust for a repository. See [[trust]] for details.