rework dependency types code

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

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index ac093577322a79d67356e8724b7723d6c7a024b1..73db6f12abfc5432d132a1a77ba2023b05ee79b9 100644 (file)
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -496,6 +496,13 @@ describes the plugin as a whole. For example:
   and undef if a rebuild could be needed in some circumstances, but is not
   strictly required.
 
+### genwrapper
+
+       hook(type => "genwrapper", id => "foo", call => \&genwrapper);
+
+This hook is used to inject C code (which it returns) into the `main`
+function of the ikiwiki wrapper when it is being generated.
+
 ## Plugin interface
 
 To import the ikiwiki plugin interface:
@@ -602,10 +609,20 @@ page created from it. (Ie, it appends ".html".)
 Use this when constructing the filename of a html file. Use `urlto` when
 generating a link to a page.
 
-#### `add_depends($$)`
+#### `add_depends($$;@)`
 
 Makes the specified page depend on the specified [[ikiwiki/PageSpec]].
 
+By default, dependencies are full content dependencies, meaning that the
+page will be updated whenever anything matching the PageSpec is modified.
+This default can be overridden by additional named parameters, which can be
+used to indicate weaker types of dependencies:
+
+* `presence` if set to true, only the presence of a matching page triggers
+  the dependency.
+* `links` if set to true, any change in the text of links on a matching page
+  triggers the dependency
+
 #### `pagespec_match($$;@)`
 
 Passed a page name, and [[ikiwiki/PageSpec]], returns true if the
@@ -641,7 +658,7 @@ pages, as described in [[ikiwiki/SubPage/LinkingRules]].
 
 Many plugins need to generate html links and add them to a page. This is
 done by using the `htmllink` function. The usual way to call
-`htmlllink` is:
+`htmllink` is:
 
        htmllink($page, $page, $link)
 
@@ -850,7 +867,7 @@ of the page with the rcs's conflict markers on failure.
 Passed a message, user, and ip address. Should commit all staged changes.
 Returns undef on success, and an error message on failure.
 
-Changes can be staged by calls to `rcs_add, `rcs_remove`, and
+Changes can be staged by calls to `rcs_add`, `rcs_remove`, and
 `rcs_rename`.
 
 #### `rcs_add($)`