# SYNOPSIS
-ikiwiki-transition prefix_directives page.mdwn...
+ikiwiki-transition type ...
# DESCRIPTION
there's a major change in ikiwiki syntax.
Currently only one such transition is handled, the `prefix_directives` mode
-converts an ikiwiki page from the old preprocessor directive syntax,
-requiring a space, to the new syntax, prefixed by '!'.
+converts the specified ikiwiki page from the old preprocessor directive
+syntax, requiring a space, to the new syntax, prefixed by '!'.
Preprocessor directives which already use the new syntax will remain
unchanged.
older versions of ikiwiki accepted, the prefix_directives transition will
treat these as preprocessor directives and convert them.
+One other transition is handled, the `indexdb` mode handles converting
+a plain text `.ikiwiki/index` file to a binary `.ikiwiki/indexdb`. In this
+mode, you should specify the srcdir of the wiki as the second parameter.
+You do not normally need to run `ikiwiki-transition indexdb`; ikiwiki will
+automatically run it as necessary.
+
# AUTHOR
Josh Triplett <josh@freedesktop.org>