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push: use remote.$name.push as a refmap

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Since f2690487 (fetch: opportunistically update tracking refs,
2013-05-11), we stopped taking a non-storing refspec given on the
command line of "git fetch" literally, and instead started mapping
it via remote.$name.fetch refspecs.  This allows

    $ git fetch origin master

from the 'origin' repository, which is configured with

    [remote "origin"]
        fetch = +refs/heads/*:refs/remotes/origin/*

to update refs/remotes/origin/master with the result, as if the
command line were

    $ git fetch origin +master:refs/remotes/origin/master

to reduce surprises and improve usability.  Before that change, a
refspec on the command line without a colon was only to fetch the
history and leave the result in FETCH_HEAD, without updating the
remote-tracking branches.

When you are simulating a fetch from you by your mothership with a
push by you into your mothership, instead of having:

    [remote "satellite"]
        fetch = +refs/heads/*:refs/remotes/satellite/*

on the mothership repository and running:

    mothership$ git fetch satellite

you would have:

    [remote "mothership"]
        push = +refs/heads/*:refs/remotes/satellite/*

on your satellite machine, and run:

    satellite$ git push mothership

Because we so far did not make the corresponding change to the push
side, this command:

    satellite$ git push mothership master

does _not_ allow you on the satellite to only push 'master' out but
still to the usual destination (i.e. refs/remotes/satellite/master).

Implement the logic to map an unqualified refspec given on the
command line via the remote.$name.push refspec.  This will bring a
bit more symmetry between "fetch" and "push".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2013-12-03 15:41:15 -08:00
parent 50d829c11a
commit ca02465b41
5 changed files with 96 additions and 8 deletions
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2
remote.h
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@ -128,6 +128,7 @@ struct ref *alloc_ref(const char *name);
struct ref *copy_ref(const struct ref *ref);
struct ref *copy_ref_list(const struct ref *ref);
void sort_ref_list(struct ref **, int (*cmp)(const void *, const void *));
extern int count_refspec_match(const char *, struct ref *refs, struct ref **matched_ref);
int ref_compare_name(const void *, const void *);
int check_ref_type(const struct ref *ref, int flags);
@ -158,6 +159,7 @@ struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec);
void free_refspec(int nr_refspec, struct refspec *refspec);
extern int query_refspecs(struct refspec *specs, int nr, struct refspec *query);
char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
const char *name);