Hi,
the Emacs support for git is incomplete, making it bomb out, for
example, when doing
C-u C-x v =
In order to have it work better, I need to fill in the following
functions:
(vc-git-previous-version FILE REV)
Return the version number immediately preceding REV for FILE,
or nil if there is no previous version.
(vc-git-next-version FILE REV)
Return the version number immediately following REV for FILE,
or nil if there is no previous version.
REV will tend to be a symbolic reference like "master" or possibly
"master{2}" (I am fuzzy about the details, but at least repeated
invocations of vc-git-previous-version should work with the previous
output). The corresponding next and previous versions should be
changes that actually changed the file in question.
There is likely going to be some magic shell invocation of
git-rev-list, git-symbolic-ref and/or similar things to achieve this
task. I don't have enough of a clue to fill in the necessary details,
but I'd be able to convert them into Elisp.
Anybody with good suggestions? It would be beneficial if this would
not require the newest git version in order to work. If that means
that the output needs to be somewhat more massaged, that's ok.
Thanks,
--
David Kastrup
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