Add new page ikisystem with graph of ikiwiki system design, and mention it on index page.

2 files changed, 101 insertions, 1 deletions

diff --git a/ikisystem.mdwn b/ikisystem.mdwn
new file mode 100644
index 0000000..a60cbb9
--- /dev/null
+++ b/ikisystem.mdwn
@@ -0,0 +1,100 @@
+# Ikiwiki system configuration
+
+This website is powered by Ikiwiki. But instead of the normal Ikiwiki setup,
+each edit results in 2 parallel websites being built - one served purely static
+and one password-protected serving the static pages + CGI to edit them.
+
+Here's a graph of the interaction between the various parts of ikiwiki itself
+and different kinds of users:
+
+[[graph src="""
+digraph G {
+//	rankdir=LR
+//	rotate=90
+	center=1
+
+	subgraph cluster_user {
+		label="Any user"
+		style=dashed
+		browser_user
+	}
+	subgraph cluster_author {
+		label="Author"
+		style=dashed
+		browser_author
+	}
+	subgraph cluster_designer {
+		label="Web designer"
+		style=dashed
+		browser_designer
+		rcs_db_tmpl_local
+		rcs_db_txt_local
+		fs_local
+	}
+	subgraph cluster_website {
+		label="Public website"
+		style=dashed
+		webpages
+		webpages_searchresult
+	}
+	subgraph cluster_website_admin {
+		label="Admin website"
+		style=dashed
+		webpages_admin
+		webpages_searchresult
+	}
+
+	search_query [shape=plaintext, label="Search query"]
+	txt [shape=plaintext, label="Markdown text"]
+	media [shape=plaintext, label="Images and rich media files"]
+	tmpl [shape=plaintext, label="Html templates"]
+
+	browser_user [label="Web browser"]
+	browser_author [label="Web browser"]
+	browser_designer [label="Web browser"]
+	rcs_db_txt_local [shape=egg, label="Local revision control"]
+	rcs_db_tmpl_local [shape=egg, label="Local revision control"]
+	fs_local [shape=egg, label="Local filesystem"]
+
+	iki_form [shape=box, label="Web-based text editor"]
+	search_form [shape=box, label="Search form"]
+	search_db [shape=egg, label="Search index"]
+	rcs_db_txt [shape=egg, label="Revision control"]
+	rcs_db_tmpl [shape=egg, label="Revision control"]
+	fs [shape=egg, label="Filesystem"]
+	iki_engine [shape=box, label="Automated web builder"]
+	search_engine [shape=box, label="Search engine"]
+	webpages [label="Public web pages"]
+	webpages_admin [label="Editable web pages"]
+	webpages_searchresult [label="Search results", style=dotted]
+/*
+	browser_user -> webpages [dir=back];
+	browser_author -> webpages [dir=back];
+	browser_designer -> webpages [dir=back];
+	browser_author -> webpages_admin [dir=back];
+	browser_designer -> webpages_admin [dir=back];
+*/
+
+	browser_user -> search_form -> search_query -> search_engine -> webpages_searchresult
+	search_db -> search_engine [weight=0]
+	search_db -> iki_engine [dir=back]
+
+	browser_author -> iki_form -> rcs_db_txt -> txt -> iki_engine -> webpages
+	iki_engine -> webpages_admin
+
+	browser_designer -> iki_form
+
+	rcs_db_txt_local -> rcs_db_txt [dir=both]
+
+	rcs_db_tmpl_local -> rcs_db_tmpl [dir=both]
+	rcs_db_tmpl -> tmpl -> iki_engine
+
+	fs_local -> fs [dir=both]
+	fs -> media -> iki_engine
+
+	{rank=same; search_db rcs_db_txt rcs_db_tmpl fs}
+	{rank=same; search_query txt media tmpl}
+	{rank=same; iki_form search_form}
+//	{rank=same; webpages webpages_admin webpages_searchresult}
+}
+"""]]
diff --git a/index.mdwn b/index.mdwn
index cbebec6..452ff86 100644
--- a/index.mdwn
+++ b/index.mdwn
@@ -21,4 +21,4 @@ Let's see, if this works now, really now!!
 All wikis are supposed to have a <a href="../sandbox/">SandBox</a>,
 so this one does too.
 ----
-This wiki is powered by [ikiwiki](http://ikiwiki.info).
+This wiki is [[powered|ikisystem]] by [ikiwiki](http://ikiwiki.info).