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commit-graph: compute Bloom filters for changed paths

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Add new COMMIT_GRAPH_WRITE_CHANGED_PATHS flag that makes Git compute
Bloom filters for the paths that changed between a commit and it's
first parent, for each commit in the commit-graph.  This computation
is done on a commit-by-commit basis.

We will write these Bloom filters to the commit-graph file, to store
this data on disk, in the next change in this series.

Helped-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Garima Singh <garima.singh@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Garima Singh
2020-03-30 00:31:28 +00:00
committed by Junio C Hamano
parent e369698016
commit f97b9325f6
2 changed files with 33 additions and 2 deletions
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3
commit-graph.h
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@ -79,7 +79,8 @@ enum commit_graph_write_flags {
COMMIT_GRAPH_WRITE_PROGRESS = (1 << 1),
COMMIT_GRAPH_WRITE_SPLIT = (1 << 2),
/* Make sure that each OID in the input is a valid commit OID. */
COMMIT_GRAPH_WRITE_CHECK_OIDS = (1 << 3)
COMMIT_GRAPH_WRITE_CHECK_OIDS = (1 << 3),
COMMIT_GRAPH_WRITE_BLOOM_FILTERS = (1 << 4),
};
struct split_commit_graph_opts {