[PATCH v2 03/11] bloom: get_bloom_filter() cleanups

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From: Derrick Stolee <dstolee@xxxxxxxxxxxxx>

The get_bloom_filter() method is a bit complicated in some parts where
it does not need to be. In particular, it needs to return a NULL filter
only when compute_if_not_present is zero AND the filter data cannot be
loaded from a commit-graph file. This currently happens by accident
because the commit-graph does not load changed-path Bloom filters from
an existing commit-graph when writing a new one. This will change in a
later patch.

Also clean up some style issues while we are here.

Signed-off-by: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
---
 bloom.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/bloom.c b/bloom.c
index c38d1cff0c..7291506564 100644
--- a/bloom.c
+++ b/bloom.c
@@ -186,7 +186,7 @@ struct bloom_filter *get_bloom_filter(struct repository *r,
 	struct diff_options diffopt;
 	int max_changes = 512;
 
-	if (bloom_filters.slab_size == 0)
+	if (!bloom_filters.slab_size)
 		return NULL;
 
 	filter = bloom_filter_slab_at(&bloom_filters, c);
@@ -194,16 +194,15 @@ struct bloom_filter *get_bloom_filter(struct repository *r,
 	if (!filter->data) {
 		load_commit_graph_info(r, c);
 		if (c->graph_pos != COMMIT_NOT_FROM_GRAPH &&
-			r->objects->commit_graph->chunk_bloom_indexes) {
-			if (load_bloom_filter_from_graph(r->objects->commit_graph, filter, c))
-				return filter;
-			else
-				return NULL;
-		}
+		    r->objects->commit_graph->chunk_bloom_indexes &&
+		    load_bloom_filter_from_graph(r->objects->commit_graph, filter, c))
+			return filter;
 	}
 
-	if (filter->data || !compute_if_not_present)
+	if (filter->data)
 		return filter;
+	if (!filter->data && !compute_if_not_present)
+		return NULL;
 
 	repo_diff_setup(r, &diffopt);
 	diffopt.flags.recursive = 1;
-- 
gitgitgadget




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