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

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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
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5
reflog-walk.c
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@@ -48,7 +48,8 @@ static struct complete_reflogs *read_complete_reflog(const char *ref)
unsigned char sha1[20];
const char *name;
void *name_to_free;
name = name_to_free = resolve_refdup(ref, sha1, 1, NULL);
name = name_to_free = resolve_refdup(ref, RESOLVE_REF_READING,
sha1, NULL);
if (name) {
for_each_reflog_ent(name, read_one_reflog, reflogs);
free(name_to_free);
@@ -174,7 +175,7 @@ int add_reflog_for_walk(struct reflog_walk_info *info,
if (*branch == '\0') {
unsigned char sha1[20];
free(branch);
branch = resolve_refdup("HEAD", sha1, 0, NULL);
branch = resolve_refdup("HEAD", 0, sha1, NULL);
if (!branch)
die ("No current branch");