[PATCH 0/8] reftable: small set of fixes

[Patrick Steinhardt <ps@pks.im>]

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Hi,

while working on the reftable backend I've hit several smaller issues in
the reftable library, which this patch series addresses.

We probably want to refactor t0032-reftable-unittest.sh to plug into the
new unit test architecture eventually, but for now I refrained from
doing so. I care more about getting things to a working state right now,
but I or somebody else from the Gitaly team will probably pick this
topic up later in this release cycle.

One issue I had was that this patch series starts to use more of the Git
infrastructure. Back when the library was introduced that there was some
discussion around whether it should work standalone or not, but if I
remember correctly the outcome was that it's okay to use internals like
e.g. `strbuf`. And while things like `read_in_full()` and related are
trivial wrappers, this patch series start to hook into the tempfiles
interface which I really didn't want to reimplement.

It's a bit unfortunate that we don't yet have good test coverage as
there are no end-to-end tests, and most of the changes I did are not
easily testable in unit tests. So until the reftable backend gets
submitted you'll have to trust my reasoning as layed out in the commit
messages that the changes actually improve things.

Patrick

Patrick Steinhardt (8):
  reftable: wrap EXPECT macros in do/while
  reftable: handle interrupted reads
  reftable: handle interrupted writes
  reftable/stack: verify that `reftable_stack_add()` uses
    auto-compaction
  reftable/stack: perform auto-compaction with transactional interface
  reftable/stack: reuse buffers when reloading stack
  reftable/merged: reuse buffer to compute record keys
  reftable/stack: fix stale lock when dying

 reftable/blocksource.c    |   2 +-
 reftable/merged.c         |  20 ++++----
 reftable/stack.c          |  71 ++++++++++----------------
 reftable/stack_test.c     | 105 +++++++++++++++++++++++++++++++++++++-
 reftable/test_framework.h |  58 +++++++++++----------
 5 files changed, 174 insertions(+), 82 deletions(-)

-- 
2.42.0


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