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author | Jeff King <peff@peff.net> | 2021-06-22 12:04:50 -0400 |
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committer | Junio C Hamano <gitster@pobox.com> | 2021-06-28 20:30:17 -0700 |
commit | b2086b518366ed71caac498857b9c5765dd73ed1 (patch) | |
tree | 8e47d1a2368c3a1d758dacec201f9669928e4f37 /Documentation/config/stash.txt | |
parent | pretty.h: update and expand docstring for userformat_find_requirements() (diff) | |
download | tgif-b2086b518366ed71caac498857b9c5765dd73ed1.tar.xz |
log: avoid loading decorations for userformats that don't need it
If no --decorate option is given, we default to auto-decoration. And
when that kicks in, cmd_log_init_finish() will unconditionally load the
decoration refs.
However, if we are using a user-format that does not include "%d" or
"%D", we won't show the decorations at all, so we don't need to load
them. We can detect this case and auto-disable them by adding a new
field to our userformat_want helper. We can do this even when the user
explicitly asked for --decorate, because it can't affect the output at
all.
This patch consistently reduces the time to run "git log -1 --format=%H"
on my git.git clone (with ~2k refs) from 34ms to 7ms. On a much more
extreme real-world repository (with ~220k refs), it goes from 2.5s to
4ms.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Documentation/config/stash.txt')
0 files changed, 0 insertions, 0 deletions