On Sun, Sep 29, 2013 at 6:29 AM, Michael Haggerty <mhagger@xxxxxxxxxxxx> wrote:
> I wonder whether remotes.group could sensibly be used to group remotes
> into logical groups for value lookups:
>
> [remotes]
> gitk = gitk-origin
> gitk = second-gitk-repo
>
> Then DWIM could be taught to seek "gitk/foo" under
> "refs/remotes/gitk-origin/tags/foo" and
> "refs/remotes/second-gitk-repo/tags/foo" in addition to
> "refs/tags/gitk/foo" (insisting, of course, that if more than one of
> these are present that they are all consistent).
This is an interesting idea. AFAICS, remotes.<group> is currently only
used by "git remote update" and "git fetch". According to git-remote(1)
it's used like this:
[git remote] update
Fetch updates for a named set of remotes in the repository
as defined by remotes.<group>. If a named group is not
specified on the command line, the configuration parameter
remotes.default will be used; if remotes.default is not
defined, all remotes which do not have the configuration
parameter remote.<name>.skipDefaultUpdate set to true will
be updated. (See git-config(1)).
I believe this would work well when extended to ref lookup as well:
- Defining remotes.$group allows you to lookup refs across the grouped
remotes by using the "$group/<ref>" syntax, as you describe above.
- If remotes.default is defined, ref lookup happens by default across
only those remotes, i.e. "$tag" will be sought under refs/tags/$tag
and then refs/remotes/$remote/tags/$tag for each $remote in
remotes.default.
- If remotes.default is not defined, ref lookup happens across all
remotes. This is analogous to what happens with tags today; they
are all dumped into refs/tags/* and lookup considers all of them.
> Remote groups might also be used to configure the remotes that describe
> considers when describing a commit:
>
> [remotes]
> describe = junio
> describe = jrn
>
> or maybe (using the above config)
>
> git describe --remote-group=gitk
Hmm. I'd like to apply the same rules here, to stay consistent:
- "git describe --from=$remote1 --from=$remote2" considers tags
from refs/remotes/$remote1/tags/* and refs/remotes/$remote2/tags/*
- "git describe --from=$group" considers tags from
refs/remotes/$remote/tags/* for each $remote in $group
- "git describe" considers tags from all remotes mentioned in
remotes.default, or _all_ remotes is remotes.default is unset.
Additionally:
- "git describe" (without --from) also considers (and prefers?) local
tags.
- "git describe --from=foo" does NOT consider local tags, but will
also consider them if "--from=." is used.
...Johan
--
Johan Herland, <johan@xxxxxxxxxxx>
www.herland.net
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