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Merge branch 'ds/reachable'

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The code for computing history reachability has been shuffled,
obtained a bunch of new tests to cover them, and then being
improved.

* ds/reachable:
  commit-reach: correct accidental #include of C file
  commit-reach: use can_all_from_reach
  commit-reach: make can_all_from_reach... linear
  commit-reach: replace ref_newer logic
  test-reach: test commit_contains
  test-reach: test can_all_from_reach_with_flags
  test-reach: test reduce_heads
  test-reach: test get_merge_bases_many
  test-reach: test is_descendant_of
  test-reach: test in_merge_bases
  test-reach: create new test tool for ref_newer
  commit-reach: move can_all_from_reach_with_flags
  upload-pack: generalize commit date cutoff
  upload-pack: refactor ok_to_give_up()
  upload-pack: make reachable() more generic
  commit-reach: move commit_contains from ref-filter
  commit-reach: move ref_newer from remote.c
  commit.h: remove method declarations
  commit-reach: move walk methods from commit.c
This commit is contained in:
Junio C Hamano
2018-09-17 13:53:52 -07:00
parent 4d6d6ef1fc 6621c83874
commit 1b7a91da71
38 changed files with 1180 additions and 634 deletions
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18
commit-graph.c
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@ -233,6 +233,24 @@ static int prepare_commit_graph(struct repository *r)
return !!r->objects->commit_graph;
}
int generation_numbers_enabled(struct repository *r)
{
uint32_t first_generation;
struct commit_graph *g;
if (!prepare_commit_graph(r))
return 0;
g = r->objects->commit_graph;
if (!g->num_commits)
return 0;
first_generation = get_be32(g->chunk_commit_data +
g->hash_len + 8) >> 2;
return !!first_generation;
}
static void close_commit_graph(void)
{
free_commit_graph(the_repository->objects->commit_graph);