From 3d5df01b5e42416a59e857135e932bbdd8cc3ba0 Mon Sep 17 00:00:00 2001 From: Derrick Stolee Date: Tue, 10 Apr 2018 08:56:07 -0400 Subject: commit-graph: build graph from starting commits Teach git-commit-graph to read commits from stdin when the --stdin-commits flag is specified. Commits reachable from these commits are added to the graph. This is a much faster way to construct the graph than inspecting all packed objects, but is restricted to known tips. For the Linux repository, 700,000+ commits were added to the graph file starting from 'master' in 7-9 seconds, depending on the number of packfiles in the repo (1, 24, or 120). Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano --- commit-graph.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) (limited to 'commit-graph.c') diff --git a/commit-graph.c b/commit-graph.c index 70472840a3..a59d1e387b 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -551,7 +551,9 @@ static void close_reachable(struct packed_oid_list *oids) void write_commit_graph(const char *obj_dir, const char **pack_indexes, - int nr_packs) + int nr_packs, + const char **commit_hex, + int nr_commits) { struct packed_oid_list oids; struct packed_commit_list commits; @@ -591,7 +593,28 @@ void write_commit_graph(const char *obj_dir, close_pack(p); } strbuf_release(&packname); - } else + } + + if (commit_hex) { + for (i = 0; i < nr_commits; i++) { + const char *end; + struct object_id oid; + struct commit *result; + + if (commit_hex[i] && parse_oid_hex(commit_hex[i], &oid, &end)) + continue; + + result = lookup_commit_reference_gently(&oid, 1); + + if (result) { + ALLOC_GROW(oids.list, oids.nr + 1, oids.alloc); + oidcpy(&oids.list[oids.nr], &(result->object.oid)); + oids.nr++; + } + } + } + + if (!pack_indexes && !commit_hex) for_each_packed_object(add_packed_commits, &oids, 0); close_reachable(&oids); -- cgit v1.2.3