From: "Junio C Hamano" <gitster@xxxxxxxxx>
"Philip Oakley" <philipoakley@xxxxxxx> writes:
I'm still not sure this is enough. One of the problems back when I
introduced the --guides option (65f9835 (builtin/help.c: add --guide
option, 2013-04-02)) was that we had no easy way of determining what
guides were available, especially given the *nix/Windows split where
the help defaults are different (--man/--html).
At the time[1] we (I) punted on trying to determine which guides were
actually installed, and just created a short list of the important
guides, which I believe you now check. However the less common guides
are still there (gitcvs-migration?), and others may be added locally.
I think we should do both; "git help cvs-migration" should keep the
same codeflow and behaviour as we have today (so that it would still
work), while "git cvs-migration --help" should say "'cvs-migration'
is not a git command". That would be a good clean-up anyway.
It obviously cannot be done if git.c::handle_builtin() does the same
"swap <word> --help to help <word>" hack, but we could improve that
part (e.g. rewrite it to "help --swapped <word>" to allow cmd_help()
to notice). When the user said "<word> --help", we don't do guides,
when we swapped the word order, we check with guides, too.
The other option is to simply build a guide-list in exactly the same format
as the command list (which if it works can be merged later). Re-use the
existing code, etc.
I did propose that in my very first patch series, but it was probably a step
too far at the time, as it stepped on the toes of your (junio's) script for
the command list.
The link in my previous patch got mangled a possible start point for Ralf
for looking at building a guide list would be
http://public-inbox.org/git/1361660761-1932-7-git-send-email-philipoakley@xxxxxxx/
(which worked back then ;-)
Philip
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