Code

traverse_trees(): allow pruning with pathspec
authorJunio C Hamano <gitster@pobox.com>
Mon, 29 Aug 2011 19:26:05 +0000 (12:26 -0700)
committerJunio C Hamano <gitster@pobox.com>
Mon, 29 Aug 2011 21:32:04 +0000 (14:32 -0700)
commit2842c0f914f7c05401c449db9d01276ac5a743f0
tree2d9aa57534e62a6418fce3dc05ae09d4425a38a7
parentf696543dad6c7ba27b0c4fab167a5687263a9ba0
traverse_trees(): allow pruning with pathspec

The traverse_trees() machinery is primarily meant for merging two (or
more) trees, and because a merge is a full tree operation, it doesn't
support any pruning with pathspec.

Since d1f2d7e (Make run_diff_index() use unpack_trees(), not read_tree(),
2008-01-19), however, we use unpack_trees() to traverse_trees() callchain
to perform "diff-index", which could waste a lot of work traversing trees
outside the user-supplied pathspec, only to discard at the blob comparison
level in diff-lib.c::oneway_diff() which is way too late.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
tree-walk.c
tree-walk.h