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author | Taylor Blau <me@ttaylorr.com> | 2022-05-21 02:18:17 +0300 |
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committer | Junio C Hamano <gitster@pobox.com> | 2022-05-27 01:48:26 +0300 |
commit | a613164257b46700ca583bdcab160c712ad392fe (patch) | |
tree | accfaffaf186a44568b88aeca58ffd03b50e1e21 /bulk-checkin.c | |
parent | 5b92477f896f147d02bd2e9168a780940b57cfc5 (diff) |
sha1-file.c: don't freshen cruft packs
We don't bother to freshen objects stored in a cruft pack individually
by updating the `.mtimes` file. This is because we can't portably `mmap`
and write into the middle of a file (i.e., to update the mtime of just
one object). Instead, we would have to rewrite the entire `.mtimes` file
which may incur some wasted effort especially if there a lot of cruft
objects and they are freshened infrequently.
Instead, force the freshening code to avoid an optimizing write by
writing out the object loose and letting it pick up a current mtime.
This works because we prefer the mtime of the loose copy of an object
when both a loose and packed one exist (whether or not the packed copy
comes from a cruft pack or not).
This could certainly do with a test and/or be included earlier in this
series/PR, but I want to wait until after I have a chance to clean up
the overly-repetitive nature of the cruft pack tests in general.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'bulk-checkin.c')
0 files changed, 0 insertions, 0 deletions