Follow-up from #120.
DaemonWatchSetCache uses a hardcoded 2 s freshness window (DEFAULT_FRESHNESS in crates/fbuild-daemon/src/watch_set_cache.rs). For CI / benchmark scenarios where builds happen in rapid succession OR development sessions where the user edits slowly, the value should be tunable without a rebuild — mirroring the FBUILD_SELF_EVICTION_SECS override added in #116.
Scope:
- Read
FBUILD_WATCH_SET_CACHE_SECS at daemon startup.
- Pass the parsed
Duration to DaemonWatchSetCache::with_max_age(...) in DaemonContext::with_hub.
- Document the env var in
crates/fbuild-daemon/README.md alongside the other FBUILD_* toggles.
- Optional:
0 means "disable the cache" — bypass the DashMap entirely so regressions are easy to A/B.
Related: #120 (the cache itself), #116 (same pattern for self-eviction).
Follow-up from #120.
DaemonWatchSetCacheuses a hardcoded 2 s freshness window (DEFAULT_FRESHNESSincrates/fbuild-daemon/src/watch_set_cache.rs). For CI / benchmark scenarios where builds happen in rapid succession OR development sessions where the user edits slowly, the value should be tunable without a rebuild — mirroring theFBUILD_SELF_EVICTION_SECSoverride added in #116.Scope:
FBUILD_WATCH_SET_CACHE_SECSat daemon startup.DurationtoDaemonWatchSetCache::with_max_age(...)inDaemonContext::with_hub.crates/fbuild-daemon/README.mdalongside the otherFBUILD_*toggles.0means "disable the cache" — bypass the DashMap entirely so regressions are easy to A/B.Related: #120 (the cache itself), #116 (same pattern for self-eviction).