This makes it possible to run e.g. "yadm -Y foo introspect repo
2>/dev/null" and get an empty output instead of getting the error
message about foo not being fully qualified.
Start with doing "submodule absorbgitdirs" as otherwise "submodule
deinit" will fail if a module has been cloned first and later added as
a submodule (as it will then contain the .git dir instead of it being
under the superprojects .git dir).
Then try to deinit the submodules before moving the repo and abort the
upgrade if it fails for any submodule. Then do the move and finally
initialize the submodules that were initialized before the upgrade.
See #285
Also symlink instead of copy in that case, so that changes locally can
be reflected in the testhost directly, and print the used version in a
more readable format.
* Support encryption with OpenSSL (#138)
* Support "include" directive in built-in template processor (#255)
* Support extensions for alternate files and templates (#257)
* Improve support for default branches (#231, #232)
* Add --version and --help as yadm internal commands (#267)
* Improve support for XDG base directory specification
* Use XDG_DATA_HOME used for encrypted data and repository (#208)
* Default repo is now ~/.local/share/yadm/repo.git
* Default encrypted archive is now ~/.local/share/yadm/archive
* Improve shell completions (#238, #274, #275)
* Remove support for YADM_COMPATIBILITY=1 (#242)
* Remove deprecated option cygwin-copy
* Fix template mode inheritance on FreeBSD (#243, #246)
* Fix hook execution under MinGW (#150)
* Improve compatibility with Oil shell (#210)
to make it easier to use yadm in the container. Set it in the system
config (i.e. /etc/gitconfig) to avoid getting a clash if one wants to
clone an existing yadm repo that contains a .gitconfig.
It's only supported as a command option and the command will fail if
-d is used as a global option. Instead of completing it in the wrong
place, don't complete it at all as it can be considered an "internal"
switch (it's not mentioned in the manual).
Besides simplifying the setup it also has the nice side-effect of
being able to override the docker image on the command line:
$ make test IMAGE=foobar
