[PATCH 2 of 3] localrepo: add getwatcher function

[Sune Foldager]

# HG changeset patch
# User Sune Foldager <cryo at cyanite.org>
# Date 1306407607 -7200
# Node ID 26ce147adada2315fb538a1bdd23acf78d18a4c2
# Parent  991245e3b101e911c8fe6c3d75c33676613e5ef5
localrepo: add getwatcher function

Returns an fswatcher which watches the repo store, and optionally the repo
configuration as well, for changes.

diff -r 991245e3b101 -r 26ce147adada mercurial/localrepo.py
--- a/mercurial/localrepo.py	Thu May 26 12:54:34 2011 +0200
+++ b/mercurial/localrepo.py	Thu May 26 13:00:07 2011 +0200
@@ -831,6 +831,20 @@
         self._wlockref = weakref.ref(l)
         return l
 
+    def getwatcher(self, store=True, config=False, reset=False):
+        '''Return an fswatcher object that can be used to check for various
+        changes to the repository.
+
+        store - watch the repository store; default
+        config - watch the repository configuration file
+        reset - start watcher in the reset state'''
+        files = []
+        if store:
+            files += [self.sjoin("00changelog.i"), self.spath]
+        if config:
+            files.append(self.join("hgrc"))
+        return util.fswatcher(files, reset=reset)
+
     def _filecommit(self, fctx, manifest1, manifest2, linkrev, tr, changelist):
         """
         commit an individual file as part of a larger transaction