In some cases, unstaged changes are safe, eg dotfiles in the top which
are not affected by a view. Or non-annexed files in general which would
prevent view branch checkout from proceeding. But in other cases,
particularly unstaged changes to annexed files, entering a view would wipe
out those changes! And so don't allow entering a view with any unstaged
changes.
Staged changes are not safe when entering a view, because the changes get
committed to the view branch, and so the user is unlikely to remember them
when they exit the view, and so will effectively lose them, even if they're
still present in the view branch.
Also, improved the git status parser, although the improvement turned out
to not really be needed.
This commit was sponsored by Eric Drechsel on Patreon.
This fixes a crash when a git submodule has a name starting with a dot.
Such a submodule might contain dotfiles that are intended to be used when
inside the view (since a dot-directory that's not a submodule was already
preserved when entering a view). So, rather than eliminating the submodule
from the view, its git ls-files --stage hash is copied over into the view.
dotfiles/dirs have their git ls-files --stage hashes similarly copied over
to the view. This is more efficient and simpler than the old method,
and also won't break if git ever adds a new type of tree item, like was
done with submodules.
Since the content of dotfiles in the working tree is no longer hashed
when entering a view, when there are unstaged modifications, they are
not included in the view branch. Entering the view branch still works,
but git checkout shows "M .dotfile", and git diff will show the unstaged
changes. This seems like an improvement over the old behavior.
Also made Command.View not delete empty directories that are submodules
when entering a view, while still deleting other empty directories.
This commit was supported by the NSF-funded DataLad project.
This was badly named, it's a not a blob necessarily, but anything that a
tree can refer to.
Also removed the Show instance which was used for serialization to git
format, instead use fmtTreeItemType.
This commit was supported by the NSF-funded DataLad project.
