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parse_fetch_refspec(): clarify the codeflow a bit

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Most parts of the cascaded if/else if/... checked an allowable
condition but some checked forbidden conditions.  This makes adding
new allowable conditions unnecessarily inconvenient.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2013-01-29 12:58:50 -08:00
parent daebaa7813
commit def249911a
1 changed files with 12 additions and 17 deletions
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29
remote.c
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@ -538,7 +538,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
/*
* Before going on, special case ":" (or "+:") as a refspec
* for matching refs.
* for pushing matching refs.
*/
if (!fetch && rhs == lhs && rhs[1] == '\0') {
rs[i].matching = 1;
@ -565,26 +565,21 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
flags = REFNAME_ALLOW_ONELEVEL | (is_glob ? REFNAME_REFSPEC_PATTERN : 0);
if (fetch) {
/*
* LHS
* - empty is allowed; it means HEAD.
* - otherwise it must be a valid looking ref.
*/
/* LHS */
if (!*rs[i].src)
; /* empty is ok */
else if (check_refname_format(rs[i].src, flags))
; /* empty is ok; it means "HEAD" */
else if (!check_refname_format(rs[i].src, flags))
; /* valid looking ref is ok */
else
goto invalid;
/*
* RHS
* - missing is ok, and is same as empty.
* - empty is ok; it means not to store.
* - otherwise it must be a valid looking ref.
*/
/* RHS */
if (!rs[i].dst)
; /* ok */
; /* missing is ok; it is the same as empty */
else if (!*rs[i].dst)
; /* ok */
else if (check_refname_format(rs[i].dst, flags))
; /* empty is ok; it means "do not store" */
else if (!check_refname_format(rs[i].dst, flags))
; /* valid looking ref is ok */
else
goto invalid;
} else {
/*