Even the documentation tells us:
You should check if it
returns any error (non-zero return code) and if it does not, you can
start using get_revision() to do the iteration.
In preparation for this commit, I grepped all occurrences of
prepare_revision_walk and added error messages, when there were none.
Signed-off-by: Stefan Beller <stefanbeller@xxxxxxxxx>
---
builtin/branch.c | 4 +++-
builtin/commit.c | 3 ++-
remote.c | 3 ++-
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/builtin/branch.c b/builtin/branch.c
index 0591b22..ced422b 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -653,7 +653,9 @@ static int print_ref_list(int kinds, int detached, int verbose, int abbrev, stru
add_pending_object(&ref_list.revs,
(struct object *) filter, "");
ref_list.revs.limited = 1;
- prepare_revision_walk(&ref_list.revs);
+
+ if (prepare_revision_walk(&ref_list.revs))
+ die(_("revision walk setup failed"));
if (verbose)
ref_list.maxwidth = calc_maxwidth(&ref_list);
}
diff --git a/builtin/commit.c b/builtin/commit.c
index 7867768..bb84e1d 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1055,7 +1055,8 @@ static const char *find_author_by_nickname(const char *name)
revs.mailmap = &mailmap;
read_mailmap(revs.mailmap, NULL);
- prepare_revision_walk(&revs);
+ if (prepare_revision_walk(&revs))
+ die("revision walk setup failed");
commit = get_revision(&revs);
if (commit) {
struct pretty_print_context ctx = {0};
diff --git a/remote.c b/remote.c
index 894db09..112e4d5 100644
--- a/remote.c
+++ b/remote.c
@@ -1893,7 +1893,8 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs)
init_revisions(&revs, NULL);
setup_revisions(rev_argc, rev_argv, &revs, NULL);
- prepare_revision_walk(&revs);
+ if (prepare_revision_walk(&revs))
+ die("revision walk setup failed");
/* ... and count the commits on each side. */
*num_ours = 0;
--
2.1.0.rc2
--
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