| commit | f34242975fae1468dd94d31289d27f68853a28fb | |
| author | Michael Haggerty <mhagger@alum.mit.edu> | |
| Wed, 24 Jan 2018 11:14:14 +0000 (24 12:14 +0100) | ||
| committer | Junio C Hamano <gitster@pobox.com> | |
| Wed, 24 Jan 2018 20:55:26 +0000 (24 12:55 -0800) | ||
| tree | 2089da2e073c4a2f5d98add5f86b4f31ce7e5174 | treesnapshot (tar.gz zip) |
| parent | 4a14f8d093138a313070fd6a50204eda66c1f9eb | commitdiff |
packed_ref_iterator_begin(): make optimization more general
We can return an empty iterator not only if the `packed-refs` file is
missing, but also if it is empty or if there are no references whose
names succeed `prefix`. Optimize away those cases as well by moving
the call to `find_reference_location()` higher in the function and
checking whether the determined start position is the same as
`snapshot->eof`. (This is possible now because the previous commit
made `find_reference_location()` robust against empty snapshots.)
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We can return an empty iterator not only if the `packed-refs` file is
missing, but also if it is empty or if there are no references whose
names succeed `prefix`. Optimize away those cases as well by moving
the call to `find_reference_location()` higher in the function and
checking whether the determined start position is the same as
`snapshot->eof`. (This is possible now because the previous commit
made `find_reference_location()` robust against empty snapshots.)
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| refs/packed-backend.c | diffblobblamehistory |