b6d46c212e
* 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
77 lines
2.4 KiB
Haskell
77 lines
2.4 KiB
Haskell
{- git-annex command
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-
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- Copyright 2011 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.Migrate where
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import Common.Annex
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import Command
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import Backend
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import qualified Types.Key
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import qualified Types.Backend
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import Types.KeySource
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import Annex.Content
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import qualified Command.ReKey
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import qualified Command.Fsck
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def :: [Command]
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def = [notDirect $
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command "migrate" paramPaths seek
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SectionUtility "switch data to different backend"]
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seek :: CommandSeek
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seek = withFilesInGit $ whenAnnexed start
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start :: FilePath -> (Key, Backend) -> CommandStart
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start file (key, oldbackend) = do
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exists <- inAnnex key
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newbackend <- choosebackend =<< chooseBackend file
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if (newbackend /= oldbackend || upgradableKey oldbackend key) && exists
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then do
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showStart "migrate" file
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next $ perform file key oldbackend newbackend
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else stop
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where
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choosebackend Nothing = Prelude.head <$> orderedList
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choosebackend (Just backend) = return backend
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{- Checks if a key is upgradable to a newer representation.
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-
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- Reasons for migration:
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- - Ideally, all keys have file size metadata. Old keys may not.
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- - Something has changed in the backend, such as a bug fix.
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-}
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upgradableKey :: Backend -> Key -> Bool
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upgradableKey backend key = isNothing (Types.Key.keySize key) || backendupgradable
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where
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backendupgradable = maybe False (\a -> a key)
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(Types.Backend.canUpgradeKey backend)
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{- Store the old backend's key in the new backend
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- The old backend's key is not dropped from it, because there may
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- be other files still pointing at that key.
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-
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- To ensure that the data we have for the old key is valid, it's
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- fscked here. First we generate the new key. This ensures that the
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- data cannot get corrupted after the fsck but before the new key is
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- generated.
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-}
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perform :: FilePath -> Key -> Backend -> Backend -> CommandPerform
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perform file oldkey oldbackend newbackend = go =<< genkey
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where
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go Nothing = stop
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go (Just newkey) = stopUnless checkcontent $ finish newkey
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checkcontent = Command.Fsck.checkBackend oldbackend oldkey $ Just file
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finish newkey = stopUnless (Command.ReKey.linkKey oldkey newkey) $
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next $ Command.ReKey.cleanup file oldkey newkey
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genkey = do
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content <- calcRepo $ gitAnnexLocation oldkey
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let source = KeySource
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{ keyFilename = file
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, contentLocation = content
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, inodeCache = Nothing
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}
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liftM fst <$> genKey source (Just newbackend)
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