From 2a2112a42913ee7397f950f3b8f9b3f3ab84a631 Mon Sep 17 00:00:00 2001 From: Han-Wen Nienhuys Date: Mon, 12 Apr 2021 19:32:34 +0000 Subject: [PATCH] refs: print errno for read_raw_ref if GIT_TRACE_REFS is set The ref backend API uses errno as a sideband error channel. Signed-off-by: Han-Wen Nienhuys Signed-off-by: Junio C Hamano --- refs/debug.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/refs/debug.c b/refs/debug.c index 922e64fa6a..576bf98e74 100644 --- a/refs/debug.c +++ b/refs/debug.c @@ -244,6 +244,7 @@ static int debug_read_raw_ref(struct ref_store *ref_store, const char *refname, int res = 0; oidcpy(oid, &null_oid); + errno = 0; res = drefs->refs->be->read_raw_ref(drefs->refs, refname, oid, referent, type); @@ -251,7 +252,9 @@ static int debug_read_raw_ref(struct ref_store *ref_store, const char *refname, trace_printf_key(&trace_refs, "read_raw_ref: %s: %s (=> %s) type %x: %d\n", refname, oid_to_hex(oid), referent->buf, *type, res); } else { - trace_printf_key(&trace_refs, "read_raw_ref: %s: %d\n", refname, res); + trace_printf_key(&trace_refs, + "read_raw_ref: %s: %d (errno %d)\n", refname, + res, errno); } return res; }