inotify: fix issue1375, add a test. The biggest problem was the data structure, which did not allow changing a file into a directory or vice versa. This problem is fixed by b55d44719b47. The walk() method also had an issue in this case: - we know 'path' as a directory. inotify server sleeps. - 'path' is deleted - 'path' is recreated as a file - the server catches up here, and see the deletion. it instantiates a scan(), which in its turn calls for walk(repo, path). - walk() then assumes that 'path' is a directory and calls os.listdir on it, which raises an OSError(errno.ENOTDIR) Catch the error, and yield the file instead of the directory contents.

--- a/tests/test-inotify	Tue May 26 23:00:35 2009 +0900
+++ b/tests/test-inotify	Mon Jul 13 16:49:05 2009 +0200
@@ -35,4 +35,19 @@
 hg status .
 cd ..
 
+#issue 1375
+#Testing that we can remove a folder and then add a file with the same name
+echo % issue 1375
+
+mkdir h
+echo h > h/h
+hg ci -Am t
+hg rm h
+
+echo h >h
+hg add h
+
+hg status
+hg ci -m0
+
 kill `cat hg.pid`