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;;; The GNU Assembly Web Site
;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2021 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; This program 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.
;;;
;;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
(use-modules (haunt asset)
(haunt site)
(haunt page)
(haunt html)
(haunt post)
(haunt builder assets)
(haunt builder blog)
(haunt builder atom)
(haunt reader)
(haunt reader commonmark)
(srfi srfi-19) ;dates
(srfi srfi-26) ;cut
(srfi srfi-71) ;multiple-value let
(ice-9 match))
(define %cwd
(and=> (assq-ref (current-source-location) 'filename)
dirname))
(define (base-url . location)
(string-concatenate (cons "" location)))
(define (image-url location)
(base-url "/static/images" location))
(define (css-url location)
(base-url "/static/css" location))
(define* (base-layout body #:key (title "") (meta '())
(posts '()) site)
(define (menubar where)
(let ((locations
'(("about" "About" "/")
("software" "Software" "/en/software")
("documents" "Documents" "/en/documents")
("blog" "Blog" "/en/blog"))))
`(div (@ (id "menubar")
(class "width-control"))
(ul
,@(map (match-lambda
((key text path)
(if (and where (string=? where key))
`(li (@ (class "selected"))
(span ,text))
`(li (a (@ (href ,(base-url path)))
,text)))))
locations)
(li (a (@ (href ,(base-url "/en/blog/feed.xml")))
(img (@ (alt "Atom feed")
(src ,(image-url "/feed.png"))))))))))
(define front-page?
(assoc-ref meta 'frontpage))
`((doctype "html")
(html (@ (lang "en"))
(head
(meta (@ (http-equiv "Content-Type")
(content "text/html; charset=utf-8")))
(link (@ (rel "icon")
(type "image/x-icon")
(href ,(image-url "/favicon.svg"))))
(link (@ (rel "stylesheet")
(href ,(css-url "/main.css"))
(type "text/css")
(media "screen")))
(title ,title))
(body
,@(if front-page?
'((@ (class "frontpage")))
'())
(div (@ (id "header"))
(div (@ (id "header-inner")
(class "width-control"))
(a (@ (href ,(base-url "/"))
(class ,(if front-page?
"logo" "logo small")))
(img (@ (alt "The logo of the GNU Assembly")
(src ,(image-url (if front-page?
"/logo.svg"
"/logo-small.svg"))))))
;; Add the large-font welcoming message on the
;; front page.
,@(if front-page?
`((p (@ (id "heading")
(class "front-page-heading"))
"Welcome to the GNU Assembly! We write "
(a (@ (href "/en/documents/free-software"))
(emph "free software"))
" — software that empowers users, "
"giving them individual and collective control "
"over their computing, from the operating "
"system to applications."))
`(,(menubar (assoc-ref meta 'menu))))))
,@(if front-page?
`(,(menubar "about"))
'())
(div (@ (id "content")
(class "width-control"))
(div (@ (id "content-inner"))
(article ,body)))
(div (@ (id "footer-box")
(class "width-control"))
(p (a (@ (href "https://wiki.gnu.tools/git/gnu-tools-wiki/tree/website")) ;FIXME
"Source of this site")))))))
(define read-markdown
(reader-proc commonmark-reader))
(define (read-markdown-page file posts site)
"Read the CommonMark page from FILE. Return its final SXML
representation."
(let ((meta body (read-markdown (string-append %cwd "/" file))))
(base-layout `(div (@ (class "post"))
(div (@ (class "post-body"))
,body))
#:title (string-append "The GNU Assembly — "
(assoc-ref meta 'title))
#:meta meta
#:posts posts
#:site site)))
(define (static-pages)
"Return the list of static web pages."
(define (markdown-page html md)
(lambda (site posts)
(make-page html (read-markdown-page md posts site)
sxml->html)))
(list (markdown-page "index.html" "index.md")
(markdown-page "/en/documents/index.html"
"documents.md")
(markdown-page "/en/software/index.html"
"software.md")
(markdown-page "/en/documents/free-software/index.html"
"free-software.md")
(markdown-page "/en/documents/code-of-conduct/index.html"
"code-of-conduct.md")
(markdown-page "/en/documents/social-contract/index.html"
"social-contract.md")))
;;;
;;; Blog.
;;;
(define (post-url post site)
"Return the URL of POST, a Haunt blog post, for SITE."
(let ((date (post-date post)))
(base-url "/en/blog/"
(number->string (date-year date))
"/"
(string-pad (number->string (date-month date))
2 #\0)
;; There's an implicit "/index.html" here.
"/" (site-post-slug site post))))
(define* (post->sxml post #:key post-uri summarize?)
"Return the SXML for POST."
(define post-body*
;; (if summarize?
;; (cut summarize-post <> post-uri)
;; post-sxml*)
post-sxml
)
`(div (@ (class "post"))
(h1 (@ (class "title"))
,(if post-uri
`(a (@ (href ,post-uri))
,(post-ref post 'title))
(post-ref post 'title)))
(div (@ (class "post-about"))
,(post-ref post 'author)
" — " ,(date->string (post-date post) "~B ~e, ~Y"))
(hr)
(div (@ (class "post-body"))
,(post-body* post))))
(define (page->sxml site title posts prefix)
"Return the SXML for the news page of SITE, containing POSTS."
`((div (@ (class "header"))
(div (@ (class "post-list"))
,@(map (lambda (post)
(post->sxml post #:post-uri (post-url post site)
#:summarize? #t))
posts)))))
(define (post->page post site)
(make-page (string-append (post-url post site) "/index.html")
(render-post %theme site post)
sxml->html))
(define %theme
;; Theme for the rendering of the news pages.
(theme #:name "The GNU Assembly"
#:layout (lambda (site title body)
(base-layout body
#:title
(string-append "The GNU Assembly — "
title)))
#:post-template post->sxml
#:collection-template page->sxml))
(site #:title "The GNU Assembly"
#:domain "gnu.tools"
#:default-metadata
'((author . "The GNU Assembly")
(email . "assembly@lists.gnu.tools"))
#:readers (list commonmark-reader)
#:builders (append (list (static-directory "static"))
(static-pages)
;; Blog posts.
(list (lambda (site posts)
;; Pages for each post.
(map (cut post->page <> site) posts))
(lambda (site posts)
;; The main collection.
(make-page
"/en/blog/index.html"
(render-collection
%theme site
"The GNU Assembly — Blog" ;title
(posts/reverse-chronological posts)
"/en/blog")
sxml->html))
;; Apparently the <link> tags of Atom entries
;; must be absolute URLs, hence this
;; #:blog-prefix.
(atom-feed #:file-name "en/blog/feed.xml"
#:blog-prefix "https://gnu.tools/en/blog"))))
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