fsmonitor: config settings are repository-specific
Move fsmonitor config settings to a new and opaque
`struct fsmonitor_settings` structure. Add a lazily-loaded pointer
to this into `struct repo_settings`
Create an `enum fsmonitor_mode` type in `struct fsmonitor_settings` to
represent the state of fsmonitor. This lets us represent which, if
any, fsmonitor provider (hook or IPC) is enabled.
Create `fsm_settings__get_*()` getters to lazily look up fsmonitor-
related config settings.
Get rid of the `core_fsmonitor` global variable. Move the code to
lookup the existing `core.fsmonitor` config value into the fsmonitor
settings.
Create a hook pathname variable in `struct fsmonitor-settings` and
only set it when in hook mode.
Extend the definition of `core.fsmonitor` to be either a boolean
or a hook pathname. When true, the builtin FSMonitor is used.
When false or unset, no FSMonitor (neither builtin nor hook) is
used.
The existing `core_fsmonitor` global variable was used to store the
pathname to the fsmonitor hook *and* it was used as a boolean to see
if fsmonitor was enabled. This dual usage and global visibility leads
to confusion when we add the IPC-based provider. So lets hide the
details in fsmonitor-settings.c and let it decide which provider to
use in the case of multiple settings. This avoids cluttering up
repo-settings.c with these private details.
A future commit in builtin-fsmonitor series will add the ability to
disqualify worktrees for various reasons, such as being mounted from a
remote volume, where fsmonitor should not be started. Having the
config settings hidden in fsmonitor-settings.c allows such worktree
restrictions to override the config values used.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/fsmonitor.h b/fsmonitor.h
index f20d726..3f41f65 100644
--- a/fsmonitor.h
+++ b/fsmonitor.h
@@ -3,6 +3,7 @@
#include "cache.h"
#include "dir.h"
+#include "fsmonitor-settings.h"
extern struct trace_key trace_fsmonitor;
@@ -57,7 +58,10 @@ int fsmonitor_is_trivial_response(const struct strbuf *query_result);
*/
static inline int is_fsmonitor_refreshed(const struct index_state *istate)
{
- return !core_fsmonitor || istate->fsmonitor_has_run_once;
+ enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(istate->repo);
+
+ return fsm_mode <= FSMONITOR_MODE_DISABLED ||
+ istate->fsmonitor_has_run_once;
}
/*
@@ -67,7 +71,10 @@ static inline int is_fsmonitor_refreshed(const struct index_state *istate)
*/
static inline void mark_fsmonitor_valid(struct index_state *istate, struct cache_entry *ce)
{
- if (core_fsmonitor && !(ce->ce_flags & CE_FSMONITOR_VALID)) {
+ enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(istate->repo);
+
+ if (fsm_mode > FSMONITOR_MODE_DISABLED &&
+ !(ce->ce_flags & CE_FSMONITOR_VALID)) {
istate->cache_changed = 1;
ce->ce_flags |= CE_FSMONITOR_VALID;
trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_clean '%s'", ce->name);
@@ -83,7 +90,9 @@ static inline void mark_fsmonitor_valid(struct index_state *istate, struct cache
*/
static inline void mark_fsmonitor_invalid(struct index_state *istate, struct cache_entry *ce)
{
- if (core_fsmonitor) {
+ enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(istate->repo);
+
+ if (fsm_mode > FSMONITOR_MODE_DISABLED) {
ce->ce_flags &= ~CE_FSMONITOR_VALID;
untracked_cache_invalidate_path(istate, ce->name, 1);
trace_printf_key(&trace_fsmonitor, "mark_fsmonitor_invalid '%s'", ce->name);
