changeset 4101:88000f1d2406 stable

firstmergecache: ignore permission and OS errors when writing This cache is related to the obshashrange one and we update it lazily by default. This can be an issue when pulling locally from a read only repository that was not configured for a more aggressive cache warming. The raised permission error was uncaught and could crash the whole process. Errors during cache update should not block Mercurial operations.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Thu, 13 Sep 2018 17:08:18 +0200
parents f21187478dcc
children 3895f6fcd35c
files hgext3rd/evolve/firstmergecache.py
diffstat 1 files changed, 9 insertions(+), 6 deletions(-) [+]
line wrap: on
line diff
--- a/hgext3rd/evolve/firstmergecache.py	Thu Sep 13 18:56:04 2018 +0200
+++ b/hgext3rd/evolve/firstmergecache.py	Thu Sep 13 17:08:18 2018 +0200
@@ -135,9 +135,12 @@
         if self._cachekey is None or self._cachekey == self._ondiskkey:
             return
 
-        cachevfs = compat.getcachevfs(repo)
-        cachefile = cachevfs(self._filepath, 'w', atomictemp=True)
-        headerdata = self._serializecachekey()
-        cachefile.write(headerdata)
-        cachefile.write(self._data.tostring())
-        cachefile.close()
+        try:
+            cachevfs = compat.getcachevfs(repo)
+            cachefile = cachevfs(self._filepath, 'w', atomictemp=True)
+            headerdata = self._serializecachekey()
+            cachefile.write(headerdata)
+            cachefile.write(self._data.tostring())
+            cachefile.close()
+        except (IOError, OSError) as exc:
+            repo.ui.debug('firstmergecache: could not write update %s\n' % exc)