# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2023-03-20 10:40:18
# Node ID cf6e1d5356029105d4b94c3d170cb213f7e08deb
# Parent  6487737e0f009679aa334f4a4cebf7b0fe7286c8

fncache: make it possible to ignore some file

In the next changeset, we need to able to ignore some temporary file. This
changeset teach the fncache about that.

diff --git a/mercurial/store.py b/mercurial/store.py
--- a/mercurial/store.py
+++ b/mercurial/store.py
@@ -603,6 +603,7 @@ class fncache:
     # hence the encodedir/decodedir dance
     def __init__(self, vfs):
         self.vfs = vfs
+        self._ignores = set()
         self.entries = None
         self._dirty = False
         # set of new additions to fncache
@@ -687,7 +688,12 @@ class fncache:
             self.entries = None
             self.addls = set()
 
+    def addignore(self, fn):
+        self._ignores.add(fn)
+
     def add(self, fn):
+        if fn in self._ignores:
+            return
         if self.entries is None:
             self._load()
         if fn not in self.entries: