138 lines
4.9 KiB
Scheme
138 lines
4.9 KiB
Scheme
;;; Haunt --- Static site generator for GNU Guile
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;;; Copyright © 2015 David Thompson <davet@gnu.org>
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;;;
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;;; This file is part of Haunt.
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;;;
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;;; Haunt is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; Haunt is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Haunt. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; Site configuration data type.
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;;
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;;; Code:
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(define-module (haunt site)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-9)
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#:use-module (srfi srfi-26)
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#:use-module (ice-9 match)
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#:use-module (ice-9 regex)
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#:use-module (haunt utils)
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#:use-module (haunt reader)
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#:use-module (haunt page)
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#:use-module (haunt post)
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#:use-module (haunt asset)
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#:export (site
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site?
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site-title
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site-domain
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site-scheme
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site-posts-directory
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site-file-filter
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site-build-directory
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site-default-metadata
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site-make-slug
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site-readers
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site-builders
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site-post-slug
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build-site
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make-file-filter
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default-file-filter))
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(define-record-type <site>
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(make-site title domain scheme posts-directory file-filter build-directory
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default-metadata make-slug readers builders)
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site?
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(title site-title)
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(domain site-domain)
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(scheme site-scheme) ; https or http
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(posts-directory site-posts-directory)
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(file-filter site-file-filter)
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(build-directory site-build-directory)
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(default-metadata site-default-metadata)
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(make-slug site-make-slug)
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(readers site-readers)
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(builders site-builders))
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(define* (site #:key
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(title "This Place is Haunted")
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(domain "example.com")
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(scheme 'https)
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(posts-directory "posts")
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(file-filter default-file-filter)
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(build-directory "site")
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(default-metadata '())
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(make-slug post-slug)
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(readers '())
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(builders '()))
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"Create a new site object. All arguments are optional:
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TITLE: The name of the site
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DOMAIN: The domain that will host the site
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SCHEME: Either 'https' or 'http' ('https' by default)
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POSTS-DIRECTORY: The directory where posts are found
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FILE-FILTER: A predicate procedure that returns #f when a post file
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should be ignored, and #f otherwise. Emacs temp files are ignored by
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default.
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BUILD-DIRECTORY: The directory that generated pages are stored in
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DEFAULT-METADATA: An alist of arbitrary default metadata for posts
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whose keys are symbols
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MAKE-SLUG: A procedure generating a file name slug from a post
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READERS: A list of reader objects for processing posts
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BUILDERS: A list of procedures for building pages from posts"
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(make-site title domain scheme posts-directory file-filter build-directory
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default-metadata make-slug readers builders))
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(define (site-post-slug site post)
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"Return a slug string for POST using the slug generator for SITE."
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((site-make-slug site) post))
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(define (build-site site)
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"Build SITE in the appropriate build directory."
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(let ((posts (if (file-exists? (site-posts-directory site))
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(read-posts (site-posts-directory site)
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(site-file-filter site)
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(site-readers site)
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(site-default-metadata site))
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'()))
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(build-dir (absolute-file-name (site-build-directory site))))
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(when (file-exists? build-dir)
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(delete-file-recursively build-dir)
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(mkdir build-dir))
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(for-each (match-lambda
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((? page? page)
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(format #t "writing page '~a'~%" (page-file-name page))
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(write-page page build-dir))
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((? asset? asset)
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(format #t "copying asset '~a' → '~a'~%"
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(asset-source asset)
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(asset-target asset))
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(install-asset asset build-dir))
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(obj
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(error "unrecognized site object: " obj)))
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(flat-map (cut <> site posts) (site-builders site)))))
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(define (make-file-filter patterns)
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(let ((patterns (map make-regexp patterns)))
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(lambda (file-name)
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(not (any (lambda (regexp)
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(regexp-match?
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(regexp-exec regexp (basename file-name))))
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patterns)))))
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;; Filter out Emacs temporary files by default.
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(define default-file-filter
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(make-file-filter '("^\\." "^#")))
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