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revision.h: introduce blob/tree walking in order of the commits

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The functionality to list tree objects in the order they were seen
while traversing the commits will be used in one of the next commits,
where we teach `git describe` to describe not only commits, but blobs, too.

The change in list-objects.c is rather minimal as we'll be re-using
the infrastructure put in place of the revision walking machinery. For
example one could expect that add_pending_tree is not called, but rather
commit->tree is directly passed to the tree traversal function. This
however requires a lot more code than just emptying the queue containing
trees after each commit.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller
2017-11-15 18:00:35 -08:00
committed by Junio C Hamano
parent 91904f5645
commit ce5b6f9be8
5 changed files with 94 additions and 1 deletions
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8
list-objects.c
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@ -239,6 +239,14 @@ void traverse_commit_list(struct rev_info *revs,
if (commit->tree)
add_pending_tree(revs, commit->tree);
show_commit(commit, data);
if (revs->tree_blobs_in_commit_order)
/*
* NEEDSWORK: Adding the tree and then flushing it here
* needs a reallocation for each commit. Can we pass the
* tree directory without allocation churn?
*/
traverse_trees_and_blobs(revs, &csp, show_object, data);
}
traverse_trees_and_blobs(revs, &csp, show_object, data);