From: Ronnie Sahlberg <sahlberg@google.com>
Date: Fri, 20 Jun 2014 14:42:48 +0000 (-0700)
Subject: lockfile.c: make lock_file return a meaningful errno on failurei
X-Git-Tag: v2.1.0-rc0~22^2~12
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/447ff1bf0acf9a1d7d2dc3aed032c209f105fb8a?hp=447ff1bf0acf9a1d7d2dc3aed032c209f105fb8a

lockfile.c: make lock_file return a meaningful errno on failurei

Making errno when returning from lock_file() meaningful, which should
fix

* an existing almost-bug in lock_ref_sha1_basic where it assumes
errno==ENOENT is meaningful and could waste some work on retries

* an existing bug in repack_without_refs where it prints
strerror(errno) and picks advice based on errno, despite errno
potentially being zero and potentially having been clobbered by
that point

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
---