[PATCH v10 0/8] set-head/fetch remote/HEAD updates

Sorry for sending a v10 so soon after v9 without really waiting for feedback, but as I started digging into https://lore.kernel.org/git/D4ZAELFWJMKN.S88LJ6YK31LZ@ferdinandy.com/ I realized that the root cause is in fetch and not remote add, so the solution belongs to this series. I'll leave my overall comments for v9 in here for clarity.

v10: added a new patch (8/8) on top of v9 to handle HEAD in mirrored bare repositories, rest of the patches are unchanged

v9:
the two most notable changes are
- the new patch 1/7 which address
  https://lore.kernel.org/git/Zw8IKyPkG0Hr6%2F5t@nand.local/, but see
  https://lore.kernel.org/git/D4ZAELFWJMKN.S88LJ6YK31LZ@ferdinandy.com/
- the refs_update_symref -> refs_update_symref_extended change in 2/7,
  reflecting on Phillip's comments (see
  https://lore.kernel.org/git/a7cb48e5-d8ba-44c1-9dbe-d1e8f8a63e3c@gmail.com/)

Hopefully with 1/7 the series is ready to move back to seen :)

Best, Bence

Bence Ferdinandy (8):
  t/t5505-remote: set default branch to main
  refs: atomically record overwritten ref in update_symref
  remote set-head: refactor for readability
  remote set-head: better output for --auto
  refs: add TRANSACTION_CREATE_EXISTS error
  refs: add create_only option to refs_update_symref_extended
  fetch: set remote/HEAD if it does not exist
  fetch set_head: handle mirrored bare repositories

 builtin/fetch.c                  |  90 ++++++++++++
 builtin/remote.c                 |  52 +++++--
 refs.c                           |  41 +++++-
 refs.h                           |   8 +-
 refs/files-backend.c             |  24 ++--
 refs/reftable-backend.c          |   6 +-
 t/t4207-log-decoration-colors.sh |   3 +-
 t/t5505-remote.sh                |  83 ++++++++++-
 t/t5510-fetch.sh                 | 229 ++++++++++++++++---------------
 t/t5512-ls-remote.sh             |   2 +
 t/t5514-fetch-multiple.sh        |  17 ++-
 t/t5516-fetch-push.sh            |   3 +-
 t/t5527-fetch-odd-refs.sh        |   3 +-
 t/t7900-maintenance.sh           |   3 +-
 t/t9210-scalar.sh                |   5 +-
 t/t9211-scalar-clone.sh          |   6 +-
 t/t9902-completion.sh            |  65 +++++++++
 17 files changed, 486 insertions(+), 154 deletions(-)