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fsmonitor: force index write after full scan

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fsmonitor currently only flags the index as dirty if the extension is being
added or removed. This is a performance optimization that recognizes you can
stat() a lot of files in less time than it takes to write out an updated index.

This patch makes a small enhancement and flags the index dirty if we end up
having to stat() all files and scan the entire working directory.  The assumption
being that must be expensive or you would not have turned on the feature.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ben Peart 2018-04-10 14:14:31 -04:00 committed by Junio C Hamano
parent 8b026edac3
commit ca598d5f2a
1 changed files with 3 additions and 0 deletions
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fsmonitor.c
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@ -185,6 +185,9 @@ void refresh_fsmonitor(struct index_state *istate)
for (i = 0; i < istate->cache_nr; i++)
istate->cache[i]->ce_flags &= ~CE_FSMONITOR_VALID;
/* If we're going to check every file, ensure we save the results */
istate->cache_changed |= FSMONITOR_CHANGED;
if (istate->untracked)
istate->untracked->use_fsmonitor = 0;
}