X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/96dab37a8e3acc58fb0ab5be0657c0e545e9684a..35be483aa25506229cf9af67fa3066ea696c6546:/doc/bugs/underlaydir_file_expose.mdwn

diff --git a/doc/bugs/underlaydir_file_expose.mdwn b/doc/bugs/underlaydir_file_expose.mdwn
index c827c6dd8..4ee30e39d 100644
--- a/doc/bugs/underlaydir_file_expose.mdwn
+++ b/doc/bugs/underlaydir_file_expose.mdwn
@@ -1,4 +1,13 @@
 If a file in the srcdir is removed, exposing a file in the underlaydir,
-ikiwiki will notice the removal and delete the page from the destdir. The
+ikiwiki will not notice the removal, and the
 page from the underlay will not be built. (However, it will be if the wiki
 gets rebuilt.)
+
+> This problem is caused by ikiwiki storing only filenames relative to
+> the srcdir or underlay, and mtime comparison not handling this case.
+
+> A related problem occurs if changing a site's theme with the
+> [[plugins/theme]] plugin. The style.css of the old and new theme
+> often has the same mtime, so ikiwiki does not update it w/o a rebuild.
+> This is worked around in theme.pm with a special-purpose needsbuild hook.
+> --[[Joey]]