Commit Graph

9 Commits

Author SHA1 Message Date
Han-Wen Nienhuys
73a4c188b7 reftable: rename writer_stats to reftable_writer_stats
This function is part of the reftable API, so it should use the
reftable_ prefix

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-02-23 13:36:26 -08:00
Han-Wen Nienhuys
3c443a02a9 reftable: add test for length of disambiguating prefix
The ID => ref map is trimming object IDs to a disambiguating prefix.
Check that we are computing their length correctly.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-02-23 13:36:26 -08:00
Han-Wen Nienhuys
b4007fcc6f reftable: ensure that obj_id_len is >= 2 on writing
When writing the same hash many times, we might decide to use a
length-1 object ID prefix for the ObjectID => ref table, which is out
of spec.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-02-23 13:36:26 -08:00
Han-Wen Nienhuys
1407659110 reftable: add a test that verifies that writing empty keys fails
Empty keys can only be written as ref records with empty names. The
log record has a logical timestamp in the key, so the key is never
empty.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-02-23 13:36:26 -08:00
Junio C Hamano
34230514b8 Merge branch 'hn/reftable-coverity-fixes'
Problems identified by Coverity in the reftable code have been
corrected.

* hn/reftable-coverity-fixes:
  reftable: add print functions to the record types
  reftable: make reftable_record a tagged union
  reftable: remove outdated file reftable.c
  reftable: implement record equality generically
  reftable: make reftable-record.h function signatures const correct
  reftable: handle null refnames in reftable_ref_record_equal
  reftable: drop stray printf in readwrite_test
  reftable: order unittests by complexity
  reftable: all xxx_free() functions accept NULL arguments
  reftable: fix resource warning
  reftable: ignore remove() return value in stack_test.c
  reftable: check reftable_stack_auto_compact() return value
  reftable: fix resource leak blocksource.c
  reftable: fix resource leak in block.c error path
  reftable: fix OOB stack write in print functions
2022-02-16 15:14:28 -08:00
Han-Wen Nienhuys
6322511148 reftable: drop stray printf in readwrite_test
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-20 11:31:53 -08:00
Han-Wen Nienhuys
24d4d38c0b reftable: fix resource leak in block.c error path
Add test coverage for corrupt zlib data. Fix memory leaks demonstrated by
unittest.

This problem was discovered by a Coverity scan.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-20 11:31:52 -08:00
Han-Wen Nienhuys
0dd44584ab reftable: signal overflow
reflog entries have unbounded size. In theory, each log ('g') block in reftable
can have an arbitrary size, so the format allows for arbitrarily sized reflog
messages. However, in the implementation, we are not scaling the log blocks up
with the message, and writing a large message fails.

This triggers a failure for reftable in t7006-pager.sh.

Until this is fixed more structurally, report an error from within the reftable
library for easier debugging.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-23 12:28:34 -08:00
Han-Wen Nienhuys
ffc97f1a9e reftable: reftable file level tests
With support for reading and writing files in place, we can construct files (in
memory) and attempt to read them back.

Because some sections of the format are optional (eg. indices, log entries), we
have to exercise this code using multiple sizes of input data

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08 10:45:48 -07:00