for rcs_remove(), there's no new file

[ikiwiki.git] / doc / plugins / write.mdwn

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index dbbe83851c0c5efbb2022d50b7b70e6d9798151a..dcab041dc285b0ae9214a629c692d1f8e747b7d9 100644 (file)
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -1,4 +1,4 @@
-Ikiwiki's plugin interface allows all kinds of useful [[plugins]] to be
+lkiwiki's plugin interface allows all kinds of useful [[plugins]] to be
 written to extend ikiwiki in many ways. Despite the length of this page,
 it's not really hard. This page is a complete reference to everything a
 plugin might want to do. There is also a quick [[tutorial]].
@@ -580,6 +580,7 @@ describes the plugin as a whole. For example:
 * `description` is a short description of the option.
 * `link` is a link to further information about the option. This can either
   be a [[ikiwiki/WikiLink]], or an url.
+* `htmldescription` is displayed instead of the description by websetup.
 * `advanced` can be set to true if the option is more suitable for advanced
   users.
 * `safe` should be false if the option should not be displayed in unsafe
@@ -982,14 +983,22 @@ This is the standard gettext function, although slightly optimised.
 
 This is the standard ngettext function, although slightly optimised.
 
-### `urlto($$;$)`
+### `urlto($;$$)`
 
 Construct a relative url to the first parameter from the page named by the
 second. The first parameter can be either a page name, or some other
 destination file, as registered by `will_render`.
 
-If the third parameter is passed and is true, an absolute url will be
-constructed instead of the default relative url.
+Provide a second parameter whenever possible, since this leads to better
+behaviour for the [[plugins/po]] plugin and `file:///` URLs.
+
+If the second parameter is not specified (or `undef`), the URL will be
+valid from any page on the wiki, or from the CGI; if possible it'll
+be a path starting with `/`, but an absolute URL will be used if
+the wiki and the CGI are on different domains.
+
+If the third parameter is passed and is true, the url will be a fully
+absolute url. This is useful when generating an url to publish elsewhere.
 
 ### `newpagefile($$)`
 
@@ -1101,9 +1110,7 @@ to version control; the subdir can be added if so.
 Remove a file. The filename is relative to the root of the srcdir.
 
 Note that this should not commit the removal, it should only prepare for it
-to be committed when `rcs_commit` (or `rcs_commit_staged`) is called. Note
-that the new file may be in a new subdir that is not yet in version
-control; the subdir can be added if so.
+to be committed when `rcs_commit` (or `rcs_commit_staged`) is called.
 
 #### `rcs_rename($$)`
 
@@ -1143,19 +1150,19 @@ The data structure returned for each change is:
                ],
        }
 
-#### `rcs_diff($)`
+#### `rcs_diff($;$)`
+
+The first parameter is the rev from `rcs_recentchanges`.
+The optional second parameter is how many lines to return (default: all).
 
-The parameter is the rev from `rcs_recentchanges`.
 Should return a list of lines of the diff (including \n) in list
-context, and the whole diff in scalar context.
+context, and a string containing the whole diff in scalar context.
 
 #### `rcs_getctime($)`
 
 This is used to get the page creation time for a file from the RCS, by looking
 it up in the history.
 
-It's ok if this is not implemented, and throws an error.
-
 If the RCS cannot determine a ctime for the file, return 0.
 
 #### `rcs_getmtime($)`
@@ -1210,6 +1217,9 @@ It should try to revert the specified rev, and leave the reversion staged
 so `rcs_commit_staged` will complete it. It should return undef on _success_
 and an error message on failure.
 
+This hook and `rcs_preprevert` are optional, if not implemented, no revert
+web interface will be available.
+
 ### PageSpec plugins
 
 It's also possible to write plugins that add new functions to