[PATCH 0/3] rev-list: add support for commits in `--missing`

The `--missing` option in git-rev-list(1) was introduced intitally to deal with missing blobs in the context of promissory notes. Eventually the option was extended to also support tree objects in 7c0fe330d5 (rev-list: handle missing tree objects properly,2018-10-05).

This patch series extends the `--missing` option to also add support for commit objects. We do this by introducing a new flag `MISSING` which is added whenever we encounter a missing commit during traversal. Then in `builtin/rev-list` we check for this flag and take the appropriate action based on the `--missing=*` option used.

This series is an alternate to the patch series I had posted earlier: https://lore.kernel.org/git/20230908174208.249184-1-karthik.188@gmail.com/. In that patch, we introduced an option `--ignore-missing-links` which was added to expose the `ignore_missing_links` bit to the user. The issue in that patch was that, the option `--ignore-missing-links` didn't play well the pre-existing `--missing` option. This series avoids that route and just extends the `--missing` option for commits to solve the same problem.

Karthik Nayak (3):
  revision: rename bit to `do_not_die_on_missing_objects`
  rev-list: move `show_commit()` to the bottom
  rev-list: add commit object support in `--missing` option

 builtin/reflog.c            |  2 +-
 builtin/rev-list.c          | 93 +++++++++++++++++++------------------
 list-objects.c              |  2 +-
 object.h                    |  2 +-
 revision.c                  |  9 +++-
 revision.h                  | 20 ++++----
 t/t6022-rev-list-missing.sh | 74 +++++++++++++++++++++++++++++
 7 files changed, 145 insertions(+), 57 deletions(-)
 create mode 100755 t/t6022-rev-list-missing.sh