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refspec: make @ a synonym of HEAD

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Since commit 9ba89f484e git learned how to push to a remote branch using
the source @, for example:

  git push origin @:master

However, if the right-hand side is missing, the push fails:

  git push origin @

It is obvious what is the desired behavior, and allowing the push makes
things more consistent.

Additionally, @:master now has the same semantics as HEAD:master.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Felipe Contreras
2020-11-25 18:16:16 -06:00
committed by Junio C Hamano
parent e7f80eafd1
commit 374fbaef3d
3 changed files with 62 additions and 52 deletions
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5
refspec.c
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@ -71,7 +71,10 @@ static int parse_refspec(struct refspec_item *item, const char *refspec, int fet
}
item->pattern = is_glob;
item->src = xstrndup(lhs, llen);
if (llen == 1 && *lhs == '@')
item->src = xstrdup("HEAD");
else
item->src = xstrndup(lhs, llen);
flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);
if (item->negative) {