Commit Graph

5 Commits (03eae9afb447ad4add2f18a1adb3589f050d596f)

Author SHA1 Message Date
Rubén Justo d0b38a27c6 t0613: mark as leak-free
We can mark t0613 as leak-free:

    $ make test SANITIZE=leak GIT_TEST_PASSING_SANITIZE_LEAK=check GIT_TEST_SANITIZE_LEAK_LOG=true T=t0613-reftable-write-options.sh
    [...]
    *** t0613-reftable-write-options.sh ***
    in GIT_TEST_PASSING_SANITIZE_LEAK=check mode, setting --invert-exit-code for TEST_PASSES_SANITIZE_LEAK != true
    ok 1 - default write options
    ok 2 - disabled reflog writes no log blocks
    ok 3 - many refs results in multiple blocks
    ok 4 - tiny block size leads to error
    ok 5 - small block size leads to multiple ref blocks
    ok 6 - small block size fails with large reflog message
    ok 7 - block size exceeding maximum supported size
    ok 8 - restart interval at every single record
    ok 9 - restart interval exceeding maximum supported interval
    ok 10 - object index gets written by default with ref index
    ok 11 - object index can be disabled
    # passed all 11 test(s)
    1..11
    # faking up non-zero exit with --invert-exit-code
    make[2]: *** [Makefile:75: t0613-reftable-write-options.sh] Error 1

Do it.

Signed-off-by: Rubén Justo <rjusto@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-07-01 12:29:01 -07:00
Patrick Steinhardt afbdbfae0b refs/reftable: allow disabling writing the object index
Besides the expected "ref" and "log" records, the reftable library also
writes "obj" records. These are basically a reverse mapping of object
IDs to their respective ref records so that it becomes efficient to
figure out which references point to a specific object. The motivation
for this data structure is the "uploadpack.allowTipSHA1InWant" config,
which allows a client to fetch any object by its hash that has a ref
pointing to it.

This reverse index is not used by Git at all though, and the expectation
is that most hosters nowadays use "uploadpack.allowAnySHA1InWant". It
may thus be preferable for many users to disable writing these optional
object indices altogether to safe some precious disk space.

Add a new config "reftable.indexObjects" that allows the user to disable
the object index altogether.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-13 17:02:38 -07:00
Patrick Steinhardt 90db611c2a refs/reftable: allow configuring restart interval
Add a new option `reftable.restartInterval` that allows the user to
control the restart interval when writing reftable records used by the
reftable library.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-13 17:02:38 -07:00
Patrick Steinhardt 831b366c24 refs/reftable: allow configuring block size
Add a new option `reftable.blockSize` that allows the user to control
the block size used by the reftable library.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-13 17:02:38 -07:00
Patrick Steinhardt fcf341890e reftable/dump: support dumping a table's block structure
We're about to introduce new configs that will allow users to have more
control over how exactly reftables are written. To verify that these
configs are effective we will need to take a peak into the actual blocks
written by the reftable backend.

Introduce a new mode to the dumping logic that prints out the block
structure. This logic can be invoked via `test-tool dump-reftables -b`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-13 17:02:38 -07:00