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-rw-r--r--Documentation/config/commitgraph.txt26
-rw-r--r--commit-graph.c5
-rw-r--r--oss-fuzz/fuzz-commit-graph.c2
-rw-r--r--repo-settings.c6
-rw-r--r--repository.h2
5 files changed, 33 insertions, 8 deletions
diff --git a/Documentation/config/commitgraph.txt b/Documentation/config/commitgraph.txt
index 30604e4a4c..e68cdededa 100644
--- a/Documentation/config/commitgraph.txt
+++ b/Documentation/config/commitgraph.txt
@@ -9,6 +9,26 @@ commitGraph.maxNewFilters::
commit-graph write` (c.f., linkgit:git-commit-graph[1]).
commitGraph.readChangedPaths::
- If true, then git will use the changed-path Bloom filters in the
- commit-graph file (if it exists, and they are present). Defaults to
- true. See linkgit:git-commit-graph[1] for more information.
+ Deprecated. Equivalent to commitGraph.changedPathsVersion=-1 if true, and
+ commitGraph.changedPathsVersion=0 if false. (If commitGraph.changedPathVersion
+ is also set, commitGraph.changedPathsVersion takes precedence.)
+
+commitGraph.changedPathsVersion::
+ Specifies the version of the changed-path Bloom filters that Git will read and
+ write. May be -1, 0 or 1. Note that values greater than 1 may be
+ incompatible with older versions of Git which do not yet understand
+ those versions. Use caution when operating in a mixed-version
+ environment.
++
+Defaults to -1.
++
+If -1, Git will use the version of the changed-path Bloom filters in the
+repository, defaulting to 1 if there are none.
++
+If 0, Git will not read any Bloom filters, and will write version 1 Bloom
+filters when instructed to write.
++
+If 1, Git will only read version 1 Bloom filters, and will write version 1
+Bloom filters.
++
+See linkgit:git-commit-graph[1] for more information.
diff --git a/commit-graph.c b/commit-graph.c
index 00113b0f62..91c98ebc6c 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -459,7 +459,7 @@ struct commit_graph *parse_commit_graph(struct repo_settings *s,
graph->read_generation_data = 1;
}
- if (s->commit_graph_read_changed_paths) {
+ if (s->commit_graph_changed_paths_version) {
read_chunk(cf, GRAPH_CHUNKID_BLOOMINDEXES,
graph_read_bloom_index, graph);
read_chunk(cf, GRAPH_CHUNKID_BLOOMDATA,
@@ -555,7 +555,8 @@ static void validate_mixed_bloom_settings(struct commit_graph *g)
}
if (g->bloom_filter_settings->bits_per_entry != settings->bits_per_entry ||
- g->bloom_filter_settings->num_hashes != settings->num_hashes) {
+ g->bloom_filter_settings->num_hashes != settings->num_hashes ||
+ g->bloom_filter_settings->hash_version != settings->hash_version) {
g->chunk_bloom_indexes = NULL;
g->chunk_bloom_data = NULL;
FREE_AND_NULL(g->bloom_filter_settings);
diff --git a/oss-fuzz/fuzz-commit-graph.c b/oss-fuzz/fuzz-commit-graph.c
index 2992079dd9..325c0b991a 100644
--- a/oss-fuzz/fuzz-commit-graph.c
+++ b/oss-fuzz/fuzz-commit-graph.c
@@ -19,7 +19,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
* possible.
*/
the_repository->settings.commit_graph_generation_version = 2;
- the_repository->settings.commit_graph_read_changed_paths = 1;
+ the_repository->settings.commit_graph_changed_paths_version = 1;
g = parse_commit_graph(&the_repository->settings, (void *)data, size);
repo_clear(the_repository);
free_commit_graph(g);
diff --git a/repo-settings.c b/repo-settings.c
index 30cd478762..c821583fe5 100644
--- a/repo-settings.c
+++ b/repo-settings.c
@@ -23,6 +23,7 @@ void prepare_repo_settings(struct repository *r)
int value;
const char *strval;
int manyfiles;
+ int read_changed_paths;
if (!r->gitdir)
BUG("Cannot add settings for uninitialized repository");
@@ -53,7 +54,10 @@ void prepare_repo_settings(struct repository *r)
/* Commit graph config or default, does not cascade (simple) */
repo_cfg_bool(r, "core.commitgraph", &r->settings.core_commit_graph, 1);
repo_cfg_int(r, "commitgraph.generationversion", &r->settings.commit_graph_generation_version, 2);
- repo_cfg_bool(r, "commitgraph.readchangedpaths", &r->settings.commit_graph_read_changed_paths, 1);
+ repo_cfg_bool(r, "commitgraph.readchangedpaths", &read_changed_paths, 1);
+ repo_cfg_int(r, "commitgraph.changedpathsversion",
+ &r->settings.commit_graph_changed_paths_version,
+ read_changed_paths ? -1 : 0);
repo_cfg_bool(r, "gc.writecommitgraph", &r->settings.gc_write_commit_graph, 1);
repo_cfg_bool(r, "fetch.writecommitgraph", &r->settings.fetch_write_commit_graph, 0);
diff --git a/repository.h b/repository.h
index 5f18486f64..f71154e12c 100644
--- a/repository.h
+++ b/repository.h
@@ -29,7 +29,7 @@ struct repo_settings {
int core_commit_graph;
int commit_graph_generation_version;
- int commit_graph_read_changed_paths;
+ int commit_graph_changed_paths_version;
int gc_write_commit_graph;
int fetch_write_commit_graph;
int command_requires_full_index;