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3bd28eb299
ba1b9cac ("fsmonitor: delay updating state until after split index
is merged", 2017-10-27) resolved the problem of the fsmonitor data
being applied to the non-base index when reading; however, a similar
problem exists when writing the index. Specifically, writing of the
fsmonitor extension happens only after the work to split the index
has been applied -- as such, the information in the index is only
for the non-"base" index, and thus the extension information
contains only partial data.
When saving, compute the ewah bitmap before the index is split, and
store it in the fsmonitor_dirty field, mirroring the behavior that
occurred during reading. fsmonitor_dirty is kept from being leaked by
being freed when the extension data is written -- which always happens
precisely once, no matter the split index configuration.
Signed-off-by: Alex Vandiver <alexmv@dropbox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
#ifndef FSMONITOR_H
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#define FSMONITOR_H
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extern struct trace_key trace_fsmonitor;
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/*
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* Read the fsmonitor index extension and (if configured) restore the
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* CE_FSMONITOR_VALID state.
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*/
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extern int read_fsmonitor_extension(struct index_state *istate, const void *data, unsigned long sz);
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/*
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* Fill the fsmonitor_dirty ewah bits with their state from the index,
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* before it is split during writing.
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*/
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extern void fill_fsmonitor_bitmap(struct index_state *istate);
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/*
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* Write the CE_FSMONITOR_VALID state into the fsmonitor index
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* extension. Reads from the fsmonitor_dirty ewah in the index.
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*/
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extern void write_fsmonitor_extension(struct strbuf *sb, struct index_state *istate);
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/*
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* Add/remove the fsmonitor index extension
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*/
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extern void add_fsmonitor(struct index_state *istate);
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extern void remove_fsmonitor(struct index_state *istate);
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/*
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* Add/remove the fsmonitor index extension as necessary based on the current
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* core.fsmonitor setting.
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*/
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extern void tweak_fsmonitor(struct index_state *istate);
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/*
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* Run the configured fsmonitor integration script and clear the
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* CE_FSMONITOR_VALID bit for any files returned as dirty. Also invalidate
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* any corresponding untracked cache directory structures. Optimized to only
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* run the first time it is called.
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*/
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extern void refresh_fsmonitor(struct index_state *istate);
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/*
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* Set the given cache entries CE_FSMONITOR_VALID bit. This should be
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* called any time the cache entry has been updated to reflect the
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* current state of the file on disk.
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*/
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static inline void mark_fsmonitor_valid(struct cache_entry *ce)
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{
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if (core_fsmonitor) {
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ce->ce_flags |= CE_FSMONITOR_VALID;
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trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_clean '%s'", ce->name);
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}
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}
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/*
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* Clear the given cache entry's CE_FSMONITOR_VALID bit and invalidate
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* any corresponding untracked cache directory structures. This should
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* be called any time git creates or modifies a file that should
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* trigger an lstat() or invalidate the untracked cache for the
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* corresponding directory
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*/
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static inline void mark_fsmonitor_invalid(struct index_state *istate, struct cache_entry *ce)
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{
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if (core_fsmonitor) {
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ce->ce_flags &= ~CE_FSMONITOR_VALID;
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untracked_cache_invalidate_path(istate, ce->name);
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trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_invalid '%s'", ce->name);
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}
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}
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#endif
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