[PATCHv3 0/5] Fix --recurse-submodules for submodule worktree changes

From

Stefan Beller <sbeller@google.com>

Date

Jan 3, 2018, 01:12 UTC

Message-ID

<20180103011226.160185-1-sbeller@google.com>

In-Reply-To

<xmqqbmichws2.fsf@gitster.mtv.corp.google.com>

--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -2140,7 +2140,7 @@ int oneway_merge(const struct cache_entry * const *src,
                                update |= CE_UPDATE;
                }
                if (S_ISGITLINK(old->ce_mode) && should_update_submodules() &&
-                   !verify_uptodate(old, o))
+                   o->update && !verify_uptodate(old, o))
                        update |= CE_UPDATE;
                add_entry(o, old, update, 0);


v2:
I dropped the patch to `same()` as I realized we only need to fix the
oneway_merge function, the others (two, three way merge) are fine as
they have the checks already in place.

The test added in the last patch got slightly larger as now we also test for
newly staged files to be blown away in the submodule.

v1:

The fix is in the last patch, the first patches are just massaging the code
base to make the fix easy.

The second patch fixes a bug in the test, which was ineffective at testing.
The third patch shows the problem this series addresses,
the fourth patch is a little refactoring, which I want to keep separate
as I would expect it to be a performance regression[1].
The first patch is unrelated, but improves the readability of submodule test
cases, which we'd want to improve further.

Thanks,
Stefan


Stefan Beller (5):
  t/helper/test-lazy-name-hash: fix compilation
  t/lib-submodule-update.sh: clarify test
  t/lib-submodule-update.sh: Fix test ignoring ignored files in
    submodules
  unpack-trees: oneway_merge to update submodules
  submodule: submodule_move_head omits old argument in forced case

 submodule.c                         |  4 +++-
 t/helper/test-lazy-init-name-hash.c |  2 +-
 t/lib-submodule-update.sh           | 19 +++++++++++++++++--
 unpack-trees.c                      |  3 +++
 4 files changed, 24 insertions(+), 4 deletions(-)

-- 
2.15.1.620.gb9897f4670-goog