* fix: skip replication-ignored files in cache_in_path() to stop poll-cycle log spam
cache_in_path() emitted a 'Detecting Resource Change' log and called update_db_from_path() for tooling artifacts (.gitignore, .mdlrc, tests/, ...) that update_db_from_path() then declines to cache. Because their md5 is never stored, every poll cycle re-detected them as changed, spamming the Cacti log once per minute. Guard cache_in_path() with should_ignore_from_replication() up front so these paths are skipped entirely.
* test: assert cache_in_path() consults the ignore predicate before logging/updating
Regression guard for the per-poll-cycle log spam fix. cache_in_path() runs
change detection before update_db_from_path(), so it must short-circuit on
should_ignore_from_replication() up front. Without that early return an
ignored dotfile (.gitignore, .mdlrc, ...) is logged and re-processed every
cycle because its md5 is never stored and it is forever re-detected as
"changed". The new test pins the guard ahead of the first change-detection
log line in cache_in_path().
* fix: restore literal <?php opening tag in replication exclusion test
The previous commit stored the opening tag as an HTML entity, which would
make the test file fail to parse.
* poller: exclude 'tests' directories from resource replication
should_ignore_from_replication() now skips any path with a 'tests' segment, covering Cacti's own tests/ and every plugin's tests/ for both the cache-in (md5sum_path/update_db_from_path) and cache-out (resource_cache_out) directions. update_resource_cache()'s plugin scan also adds 'tests' to its directory exclusions so a plugin's tests/ tree is never cached in the first place. Adds a Pest unit test covering both directions and the plugin-scan exclusion.
* poller: purge stale excluded rows, guard collector dirs, strip install root
Address review feedback on #8118:
- should_ignore_from_replication() now strips CACTI_PATH_BASE from absolute file paths before segment matching, so an installation living under a 'tests' ancestor (e.g. /srv/tests/cacti) no longer rejects ordinary files.
- update_resource_cache() purges rows that are now excluded even when their source file still exists, dropping tests/* rows cached before the exclusion.
- The remote collector skips excluded plugin rows before building directories, so it no longer recreates plugins/foo/tests/ from stale cache rows.
Adds regression tests for the absolute-path handling and both source-level guards.
TheWitness