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

@ -602,7 +602,7 @@ int fmt_merge_msg(struct strbuf *in, struct strbuf *out,
/* get current branch */
current_branch = current_branch_to_free =
resolve_refdup("HEAD", head_sha1, 1, NULL);
resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL);
if (!current_branch)
die("No current branch");
if (starts_with(current_branch, "refs/heads/"))