refs.c: change resolve_ref_unsafe reading argument to be a flags field

resolve_ref_unsafe takes a boolean argument for reading (a nonexistent ref
resolves successfully for writing but not for reading).  Change this to be
a flags field instead, and pass the new constant RESOLVE_REF_READING when
we want this behaviour.

While at it, swap two of the arguments in the function to put output
arguments at the end.  As a nice side effect, this ensures that we can
catch callers that were unaware of the new API so they can be audited.

Give the wrapper functions resolve_refdup and read_ref_full the same
treatment for consistency.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ronnie Sahlberg
2014-07-15 12:59:36 -07:00
committed by Junio C Hamano
parent aae383db8c
commit 7695d118e5
28 changed files with 124 additions and 92 deletions

View File

@ -635,7 +635,8 @@ static void populate_value(struct refinfo *ref)
if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) {
unsigned char unused1[20];
ref->symref = resolve_refdup(ref->refname, unused1, 1, NULL);
ref->symref = resolve_refdup(ref->refname, RESOLVE_REF_READING,
unused1, NULL);
if (!ref->symref)
ref->symref = "";
}
@ -693,7 +694,8 @@ static void populate_value(struct refinfo *ref)
const char *head;
unsigned char sha1[20];
head = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
head = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
sha1, NULL);
if (!strcmp(ref->refname, head))
v->s = "*";
else