Add site module.

* haunt/site.scm: New file.
* Makefile.am (SOURCES): Add it.

Makefile.am

@@ -44,6 +44,7 @@ SOURCES =					\
   haunt/post.scm				\
   haunt/reader.scm				\
   haunt/page.scm				\
+  haunt/site.scm				\
   haunt/build/html.scm				\
   haunt/ui.scm					\
   haunt/ui/serve.scm				\

haunt/site.scm

@@ -0,0 +1,64 @@
+;;; Haunt --- Static site generator for GNU Guile
+;;; Copyright © 2015 David Thompson <davet@gnu.org>
+;;;
+;;; This file is part of Haunt.
+;;;
+;;; Haunt is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; Haunt is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;;; General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with Haunt.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Site configuration data type.
+;;
+;;; Code:
+
+(define-module (haunt site)
+  #:use-module (srfi srfi-9)
+  #:export (site
+            site?
+            site-title
+            site-posts-directory
+            site-build-directory
+            site-default-metadata
+            site-readers
+            site-builders))
+
+(define-record-type <site>
+  (make-site title posts-directory build-directory default-metadata
+             readers builders)
+  site?
+  (title site-title)
+  (posts-directory site-posts-directory)
+  (build-directory site-build-directory)
+  (default-metadata site-default-metadata)
+  (readers site-readers)
+  (builders site-builders))
+
+(define* (site #:key
+               (title "This Place is Haunted")
+               (posts-directory "posts")
+               (build-directory "site")
+               (default-metadata '())
+               (readers '())
+               (builders '()))
+  "Create a new site object.  All arguments are optional:
+
+TITLE: The name of the site
+POSTS-DIRECTORY: The directory where posts are found
+BUILD-DIRECTORY: The directory that generated pages are stored in
+DEFAULT-METADATA: An alist of arbitrary default metadata for posts
+whose keys are symbols
+READERS: A list of reader objects for processing posts
+BUILDERS: A list of procedures for building pages from posts"
+  (make-site title posts-directory build-directory
+             default-metadata readers builders))