From: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
---
builtin/commit.c | 4 +---
builtin/merge.c | 7 +++++--
commit-graph.c | 14 ++++++++++++++
commit-graph.h | 9 +++++++++
4 files changed, 29 insertions(+), 5 deletions(-)
diff --git a/builtin/commit.c b/builtin/commit.c
index d3e7781e658..27d4ff6b790 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1700,9 +1700,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
"new_index file. Check that disk is not full and quota is\n"
"not exceeded, and then \"git restore --staged :/\" to recover."));
- if (git_env_bool(GIT_TEST_COMMIT_GRAPH, 0) &&
- write_commit_graph_reachable(the_repository->objects->odb, 0, NULL))
- return 1;
+ git_test_write_commit_graph_or_die();
repo_rerere(the_repository, 0);
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
diff --git a/builtin/merge.c b/builtin/merge.c
index d127d2225f8..db11af5b1cd 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -40,6 +40,7 @@
#include "branch.h"
#include "commit-reach.h"
#include "wt-status.h"
+#include "commit-graph.h"
#define DEFAULT_TWOHEAD (1<<0)
#define DEFAULT_OCTOPUS (1<<1)
@@ -1673,9 +1674,11 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
head_commit);
}
- if (squash)
+ if (squash) {
finish(head_commit, remoteheads, NULL, NULL);
- else
+
+ git_test_write_commit_graph_or_die();
+ } else
write_merge_state(remoteheads);
if (merge_was_ok)
diff --git a/commit-graph.c b/commit-graph.c
index 77668629e27..0809f34f8d3 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" */
diff --git a/commit-graph.h b/commit-graph.h
index 8655d064c14..39484482cc1 100644
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -11,6 +11,15 @@
#define GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD "GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD"
#define GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS "GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS"
+/*
+ * This method is only used to enhance coverage of the commit-graph
+ * feature in the test suite with the GIT_TEST_COMMIT_GRAPH and
+ * GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS environment variables. Do not
+ * call this method oustide of a builtin, and only if you know what
+ * you are doing!
+ */
+void git_test_write_commit_graph_or_die(void);
+
struct commit;
struct bloom_filter_settings;
--
gitgitgadget
