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authorLibravatar Derrick Stolee <dstolee@microsoft.com>2020-04-16 20:14:03 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2020-04-16 15:38:04 -0700
commitb23ea9790d30e80c7c79a77aab2e9d150a189463 (patch)
tree211a0fd0b902ef58e67d1873797b867fe71702e4 /commit-graph.c
parentrevision: complicated pathspecs disable filters (diff)
downloadtgif-b23ea9790d30e80c7c79a77aab2e9d150a189463.tar.xz
tests: write commit-graph with Bloom filters
The GIT_TEST_COMMIT_GRAPH environment variable updates the commit- graph file whenever "git commit" is run, ensuring that we always have an updated commit-graph throughout the test suite. The GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS environment variable was introduced to write the changed-path Bloom filters whenever "git commit-graph write" is run. However, the GIT_TEST_COMMIT_GRAPH trick doesn't launch a separate process and instead writes it directly. To expand the number of tests that have commits in the commit-graph file, add a helper method that computes the commit-graph and place that helper inside "git commit" and "git merge". In the helper method, check GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS to ensure we are writing changed-path Bloom filters whenever possible. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'commit-graph.c')
-rw-r--r--commit-graph.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/commit-graph.c b/commit-graph.c
index 77668629e2..196e817a84 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -19,6 +19,20 @@
#include "bloom.h"
#include "commit-slab.h"
+void git_test_write_commit_graph_or_die(void)
+{
+ int flags = 0;
+ if (!git_env_bool(GIT_TEST_COMMIT_GRAPH, 0))
+ return;
+
+ if (git_env_bool(GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS, 0))
+ flags = COMMIT_GRAPH_WRITE_BLOOM_FILTERS;
+
+ if (write_commit_graph_reachable(the_repository->objects->odb,
+ flags, NULL))
+ die("failed to write commit-graph under GIT_TEST_COMMIT_GRAPH");
+}
+
#define GRAPH_SIGNATURE 0x43475048 /* "CGPH" */
#define GRAPH_CHUNKID_OIDFANOUT 0x4f494446 /* "OIDF" */
#define GRAPH_CHUNKID_OIDLOOKUP 0x4f49444c /* "OIDL" */