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Re: [PATCH v2 00/25] Prepare to separate out a packed_ref_store

From
Junio C Hamano <gitster@pobox.com>
Date
May 24, 2017, 02:45 UTC
Message-ID
<xmqq7f17ht0x.fsf@gitster.mtv.corp.google.com>
In-Reply-To
<cover.1495460199.git.mhagger@alum.mit.edu>
Michael Haggerty <mhagger@alum.mit.edu> writes:
Show 5 quoted lines
> * Since v1, branch `bc/object-id` has been merged to `next`, and it
>   has lots of conflicts with these changes. So I rebased this branch
>   onto a merge of `master` and `bc/object-id`. (I hope this makes
>   Junio's job easier.) This unfortunately causes a bit of tbdiff noise
>   between v1 and v2.

Heh, that gives me an excellent excuse to procrastinate, as I am planning to merge that topic to 'master' by the end of this week ;-)

Jokes aside...
Show 19 quoted lines
> * Patch [01/25]: in t3600, register the `test_when_finished` command
>   before executing `chmod a-w`.
>
> * Patch [04/25] (new patch): convert a few `die("internal error: ...")`
>   to `die("BUG: ...")`.
>
> * Patch [05/25]: Use `strlen()` rather than `memchr()` to check the
>   trim length, and `die()` rather than skipping if it is longer than
>   the reference name.
>
> * Patch [08/25]: Name the log message arguments `msg` for consistency
>   with existing code.
>
> * Patch [10/25]: Rename the new member from `packlock` to
>   `packed_refs_lock`.
>
> * Patch [13/25] (new patch): Move the check for valid
>   `transaction->state` from `files_transaction_commit()` to
>   `ref_transaction_commit()`.
All of these feel familiar ;-)
Show 16 quoted lines
> * Patch [14/25]:
>
>   * Add more sanity checks of `transaction->state`.
>
>   * Don't add `ref_transaction_finish()` to the public API. Instead,
>     teach `ref_transaction_commit()` to do the right thing whether or
>     not `ref_transaction_prepare()` has been called.
>
>   * Add and improve docstrings.
>
>   * Allow `ref_transaction_abort()` to be called even before
>     `ref_transaction_prepare()` (in which case it just calls
>     `ref_transaction_free()`).
>
> * Lots of improvements to commit messages and comments, mostly to
>   clarify points that reviewers asked about.
Overall this looked like quite a quality work to me.
Show 5 quoted lines
> These changes (along with the merge commit that they are based on) are
> also available as branch `packed-ref-store-prep` in my GitHub fork
> [2]. If you'd like to see a preview of the rest of the changes (which
> works but is not yet polished), checkout the `mmap-packed-refs` branch
> from the same place.
Thanks.
Previous: Stefan Beller
Message 31 of 31 in “Prepare to separate out a packed_ref_store”
  1. 00/25 Prepare to separate out a packed_ref_storeMichael Haggerty, May 22, 2017
  2. 01/25 t3600: clean up permissions test properlyMichael Haggerty, May 22, 2017
  3. 02/25 refs.h: clarify docstring for the ref_transaction_update()-related fnsMichael Haggerty, May 22, 2017
  4. 03/25 ref_iterator_begin_fn(): fix docstringMichael Haggerty, May 22, 2017
  5. 04/25 files-backend: use `die("BUG: ...")`, not `die("internal error: ...")`Michael Haggerty, May 22, 2017
  6. 05/25 prefix_ref_iterator: don't trim too muchMichael Haggerty, May 22, 2017
  7. 06/25 refs_ref_iterator_begin(): don't check prefixes redundantlyMichael Haggerty, May 22, 2017
  8. 07/25 refs: use `size_t` indexes when iterating over ref transaction updatesMichael Haggerty, May 22, 2017
  9. 08/25 ref_store: take a `msg` parameter when deleting referencesMichael Haggerty, May 22, 2017
  10. 10/25 files-backend: move `lock` member to `files_ref_store`Michael Haggerty, May 22, 2017
  11. 12/25 files_transaction_cleanup(): new helper functionMichael Haggerty, May 22, 2017
  12. 11/25 files_ref_store: put the packed files lock directly in this structMichael Haggerty, May 22, 2017
  13. 09/25 lockfile: add a new method, is_lock_file_locked()Michael Haggerty, May 22, 2017
  14. 14/25 ref_transaction_prepare(): new optional step for reference updatesMichael Haggerty, May 22, 2017
  15. 16/25 ref_update_reject_duplicates(): use `size_t` rather than `int`Michael Haggerty, May 22, 2017
  16. 15/25 ref_update_reject_duplicates(): expose function to whole refs moduleMichael Haggerty, May 22, 2017
  17. 17/25 ref_update_reject_duplicates(): add a sanity checkMichael Haggerty, May 22, 2017
  18. 19/25 get_packed_ref_cache(): assume "packed-refs" won't change while lockedMichael Haggerty, May 22, 2017
  19. 20/25 read_packed_refs(): do more of the work of reading packed refsMichael Haggerty, May 22, 2017
  20. 22/25 refs_ref_iterator_begin(): handle `GIT_REF_PARANOIA`Michael Haggerty, May 22, 2017
  21. 23/25 create_ref_entry(): remove `check_name` optionMichael Haggerty, May 22, 2017
  22. 24/25 ref-filter: limit traversal to prefixMichael Haggerty, May 22, 2017
  23. 25/25 cache_ref_iterator_begin(): avoid priming unneeded directoriesMichael Haggerty, May 22, 2017
  24. Jeff KingMay 23, 2017
  25. Michael HaggertyMay 24, 2017
  26. Junio C HamanoMay 24, 2017
  27. 21/25 read_packed_refs(): report unexpected fopen() failuresMichael Haggerty, May 22, 2017
  28. 13/25 ref_transaction_commit(): check for valid `transaction->state`Michael Haggerty, May 22, 2017
  29. 18/25 should_pack_ref(): new function, extracted from `files_pack_refs()`Michael Haggerty, May 22, 2017
  30. Stefan BellerMay 22, 2017
  31. Junio C HamanoMay 24, 2017

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