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path: root/t/helper/test-reftable.c
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2021-10-08Add "test-tool dump-reftable" command.Libravatar Han-Wen Nienhuys1-0/+5
This command dumps individual tables or a stack of of tables. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: implement stack, a mutable database of reftable files.Libravatar Han-Wen Nienhuys1-0/+1
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: implement refname validationLibravatar Han-Wen Nienhuys1-0/+1
The packed/loose format has restrictions on refnames: a and a/b cannot coexist. This limitation does not apply to reftable per se, but must be maintained for interoperability. This code adds validation routines to abort transactions that are trying to add invalid names. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: add merged table viewLibravatar Han-Wen Nienhuys1-0/+1
This adds an abstract, read-only interface to the ref database. This primitive is used to construct the read view of the ref database (the read view is constructed by merging several *.ref files). It also provides the mechanism to provide a unified view of the refs in the main repository and the per-worktree refs. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: add a heap-based priority queue for reftable recordsLibravatar Han-Wen Nienhuys1-0/+1
This is needed to create a merged view multiple reftables Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: reftable file level testsLibravatar Han-Wen Nienhuys1-0/+1
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>
2021-10-08reftable: a generic binary tree implementationLibravatar Han-Wen Nienhuys1-0/+1
The reftable format includes support for an (OID => ref) map. This map can speed up visibility and reachability checks. In particular, various operations along the fetch/push path within Gerrit have ben sped up by using this structure. The map is constructed with help of a binary tree. Object IDs are hashes, so they are uniformly distributed. Hence, the tree does not attempt forced rebalancing. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: reading/writing blocksLibravatar Han-Wen Nienhuys1-0/+1
The reftable format is structured as a sequence of block. Within a block, records are prefix compressed, with an index of offsets for fully expand keys to enable binary search within blocks. This commit provides the logic to read and write these blocks. Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: (de)serialization for the polymorphic record type.Libravatar Han-Wen Nienhuys1-1/+1
The reftable format is structured as a sequence of blocks, and each block contains a sequence of prefix-compressed key-value records. There are 4 types of records, and they have similarities in how they must be handled. This is achieved by introducing a polymorphic 'record' type that encapsulates ref, log, index and object records. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08reftable: utility functionsLibravatar Han-Wen Nienhuys1-0/+9
This commit provides basic utility classes for the reftable library. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>