# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1573965158 -3600
# Node ID 2276a9a1c037ffff121815642f4a7ec9a99529ab
# Parent  657bdb724b472e76623e232bfe8d78afbbbe161e
repoview: add a 'devel.debug.repo-filter' option

If set, there will be debug message when a filter computation is triggered.

This is going to be useful to remove various filtering trigger and to test they
do not get reintroduced.

Differential Revision: https://phab.mercurial-scm.org/D7476

diff -r 657bdb724b47 -r 2276a9a1c037 mercurial/configitems.py
--- a/mercurial/configitems.py	Thu Nov 21 17:54:25 2019 +0100
+++ b/mercurial/configitems.py	Sun Nov 17 05:32:38 2019 +0100
@@ -433,6 +433,9 @@
     b'devel', b'debug.extensions', default=False,
 )
 coreconfigitem(
+    b'devel', b'debug.repo-filters', default=False,
+)
+coreconfigitem(
     b'devel', b'debug.peer-request', default=False,
 )
 coreconfigitem(
diff -r 657bdb724b47 -r 2276a9a1c037 mercurial/repoview.py
--- a/mercurial/repoview.py	Thu Nov 21 17:54:25 2019 +0100
+++ b/mercurial/repoview.py	Sun Nov 17 05:32:38 2019 +0100
@@ -217,6 +217,9 @@
     hidden-state and must be visible. They are dynamic and hence we should not
     cache it's result"""
     if filtername not in repo.filteredrevcache:
+        if repo.ui.configbool(b'devel', b'debug.repo-filters'):
+            msg = b'debug.filters: computing revision filter for "%s"\n'
+            repo.ui.debug(msg % filtername)
         func = filtertable[filtername]
         if visibilityexceptions:
             return func(repo.unfiltered, visibilityexceptions)