NAME

       git-annex-migrate - switch data to different backend

SYNOPSIS

       git annex migrate [path ...]

DESCRIPTION

       Changes  the  specified  annexed  files  to  use the default key-value backend (or the one
       specified with --backend). Only files whose content is currently available are migrated.

       Note that the content is also still available using the old key after migration.  Use  git
       annex unused to find and remove the old key.

       Normally,  nothing  will  be  done  to files already using the new backend.  However, if a
       backend changes the information it uses to construct a key,  this  can  also  be  used  to
       migrate files to use the new key format.

       When  you  have multiple repositories that each contain a copy of a file, it's best to run
       migrate in all of them.

OPTIONS

       --backend

              Specify the new key-value backend to use for migrated data.

       --force
              Force migration of keys that are already using the new backend.

       file matching options
              The git-annex-matching-options(1) can be used to specify files to migrate.

       Also the git-annex-common-options(1) can be used.

       --remove-size
              Keys often include the size of their content, which is generally a useful thing. In
              fact,  this  command defaults to adding missing size information to keys. With this
              option, the size information is removed instead.

              One use of this option is to convert URL keys that were added by  git-annex  addurl
              --fast  to  ones  that  would  have  been  added  if  that command was run with the
              --relaxed option. Eg:

               git-annex migrate --remove-size --backend=URL somefile

       --json Enable JSON output. This is intended to be parsed by programs that  use  git-annex.
              Each line of output is a JSON object.

       --json-error-messages
              Messages  that  would normally be output to standard error are included in the JSON
              instead.

SEE ALSO

       git-annex(1)

       git-annex-upgrade(1)

       git-annex-backend(1)

AUTHOR

       Joey Hess <id@joeyh.name>

                                                                             git-annex-migrate(1)