Merge branch 'master' into autoconfig

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

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index 4dc55e30219667428cff64d57931683cb88ebd71..686f7e518850febee6b47acde5951027f63c1281 100644 (file)
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -3,7 +3,7 @@ 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]].
 
 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]].
 

-[[toc levels=2]]
+[[!toc levels=2]]

 
 ## Types of plugins
 
 
 ## Types of plugins
 


@@ -189,7 +189,7 @@ ikiwiki, like generating a page, or part of a blog page, or an rss feed, or
 a cgi. This hook allows modifying the variables available on those
 templates. The function is passed named parameters. The "page" and
 "destpage" parameters are the same as for a preprocess hook. The "template"
 a cgi. This hook allows modifying the variables available on those
 templates. The function is passed named parameters. The "page" and
 "destpage" parameters are the same as for a preprocess hook. The "template"

-parameter is a [[cpan HTML::Template]] object that is the template that
+parameter is a [[!cpan HTML::Template]] object that is the template that

 will be used to generate the page. The function can manipulate that
 template object.
 
 will be used to generate the page. The function can manipulate that
 template object.
 


@@ -216,6 +216,17 @@ modify the body of a page after it has been fully converted to html.
 The function is passed named parameters: "page", "destpage", and "content",
 and should return the sanitized content.
 
 The function is passed named parameters: "page", "destpage", and "content",
 and should return the sanitized content.
 

+### postscan
+
+       hook(type => "postscan", id => "foo", call => \&postscan);
+
+This hook is called once the full page body is available (but before the
+format hook). The most common use is to update search indexes. Added in
+ikiwiki 2.54.
+
+The function is passed named parameters "page" and "content". Its return
+value is ignored.
+

 ### format
 
        hook(type => "format", id => "foo", call => \&format);
 ### format
 
        hook(type => "format", id => "foo", call => \&format);


@@ -314,7 +325,7 @@ It can modify the content as desired, and should return the content.
        hook(type => "formbuilder_setup", id => "foo", call => \&formbuilder_setup);
        hook(type => "formbuilder", id => "foo", call => \&formbuilder);
 
        hook(type => "formbuilder_setup", id => "foo", call => \&formbuilder_setup);
        hook(type => "formbuilder", id => "foo", call => \&formbuilder);
 

-These hooks allow tapping into the parts of ikiwiki that use [[cpan
+These hooks allow tapping into the parts of ikiwiki that use [[!cpan

 CGI::FormBuilder]] to generate web forms. These hooks are passed named
 parameters: `cgi`, `session`, `form`, and `buttons`. These are, respectively,
 the `CGI` object, the user's `CGI::Session`, a `CGI::FormBuilder`, and a
 CGI::FormBuilder]] to generate web forms. These hooks are passed named
 parameters: `cgi`, `session`, `form`, and `buttons`. These are, respectively,
 the `CGI` object, the user's `CGI::Session`, a `CGI::FormBuilder`, and a


@@ -337,6 +348,56 @@ This hook is called whenever ikiwiki normally saves its state, just before
 the state is saved. The function can save other state, modify values before
 they're saved, etc.
 
 the state is saved. The function can save other state, modify values before
 they're saved, etc.
 

+## renamepage
+
+       hook(type => "renamepage", id => "foo", call => \&renamepage);
+
+This hook is called by the [[plugins/rename]] plugin when it renames
+something. The hook is passed named parameters: `page`, `oldpage`,
+`newpage`, and `content`, and should try to modify the content to reflect
+the name change. For example, by converting links to point to the new page.
+
+### getsetup
+
+       hook(type => "getsetup", id => "foo", call => \&getsetup);
+
+This hooks is not called during normal operation, but only when setting up 
+the wiki, or generating a setup file. Plugins can use this hook to add
+configuration options.
+
+The hook is passed no parameters. It returns data about the configuration
+options added by the plugin. It can also check if the plugin is usable, and
+die if the plugin is not available, which will cause the plugin to not be
+offered in the configuration interface.
+
+The data returned is a list of `%config` options, followed by a hash
+describing the option. For example:
+
+                return
+                       option_foo => {
+                               type => "boolean",
+                               description => "enable foo",
+                               safe => 1,
+                               rebuild => 1,
+                       },
+                       option_bar => {
+                               type => "string",
+                               example => "hello",
+                               description => "what to say",
+                               safe => 1,
+                               rebuild => 0,
+                       },
+
+* `type` can be "boolean", "string", "integer", "internal" (used for values
+  that are not user-visible). The type is the type of the leaf values; 
+  the `%config` option may be an array or hash of these.
+* `example` can be set to an example value.
+* `description` is a short description of the option.
+* `safe` should be false if the option should not be displayed in unsafe
+  configuration methods, such as the web interface. Anything that specifies
+  a command to run, a path on disk, or a regexp should be marked as unsafe.
+* `rebuild` should be true if changing the option will require a wiki rebuild.
+

 ## Plugin interface
 
 To import the ikiwiki plugin interface:
 ## Plugin interface
 
 To import the ikiwiki plugin interface:


@@ -422,7 +483,7 @@ the entire wiki build and make the wiki unusable.
 
 #### `template($;@)`
 
 
 #### `template($;@)`
 

-Creates and returns a [[cpan HTML::Template]] object. The first parameter
+Creates and returns a [[!cpan HTML::Template]] object. The first parameter

 is the name of the file in the template directory. The optional remaining
 parameters are passed to `HTML::Template->new`.
 
 is the name of the file in the template directory. The optional remaining
 parameters are passed to `HTML::Template->new`.
 


@@ -562,12 +623,15 @@ time.
 
 This is the standard gettext function, although slightly optimised.
 
 
 This is the standard gettext 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`.
 
 
 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.
+

 #### `targetpage($$)`
 
 Passed a page and an extension, returns the filename that page will be
 #### `targetpage($$)`
 
 Passed a page and an extension, returns the filename that page will be


@@ -624,4 +688,5 @@ when imported, populate `$IkiWiki::Setup::raw_setup` with a reference
 to a hash containing all the config items.
 
 By the way, to parse a ikiwiki setup file, a program just needs to
 to a hash containing all the config items.
 
 By the way, to parse a ikiwiki setup file, a program just needs to

-do something like `use IkiWiki::Setup; my %setup=IkiWiki::Setup::load($filename)`
+do something like:
+`use IkiWiki::Setup; my %setup=IkiWiki::Setup::load($filename)`