297 lines
12 KiB
EmacsLisp
297 lines
12 KiB
EmacsLisp
;; sign it with
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;; gpg --local-user yann@esposito.host --output project.el.sig --detach-sign project.el
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(defvar domainname "https://her.esy.fun")
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(defvar base-dir (concat (projectile-project-root) "src"))
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(defvar publish-dir (concat (projectile-project-root) "_site"))
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(defvar assets-dir (concat base-dir "/"))
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(defvar publish-assets-dir (concat publish-dir "/"))
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(defvar posts-dir (concat base-dir "/posts"))
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(defvar rss-title "Subscribe to articles")
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(defvar rss-description "her.esy.fun articles, mostly random personal thoughts")
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(defvar posts-descr "Articles")
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(defvar css-path "/css/minimalist.css")
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(defvar author-name "Yann Esposito")
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(defvar author-email "yann@esposito.host")
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(require 'org)
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(require 'ox-publish)
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(require 'ox-html)
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(require 'org-element)
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(require 'ox-rss)
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;; (setq org-link-file-path-type 'relative)
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(setq org-publish-timestamp-directory
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(concat (projectile-project-root) "_cache/"))
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(defvar org-blog-head
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(concat
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"<link rel=\"stylesheet\" type=\"text/css\" href=\"" css-path "\"/>"
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"<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">"
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"<link rel=\"alternative\" type=\"application/rss+xml\" title=\"" rss-title "\" href=\"/rss.xml\" />"
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"<link rel=\"shortcut icon\" type=\"image/x-icon\" href=\"/favicon.ico\">"))
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(defun menu (lst)
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"Blog menu"
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(concat
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"<navigation>"
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(mapconcat 'identity
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(append
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'("<a href=\"/index.html\">Home</a>"
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"<a href=\"/archive.html\">Posts</a>"
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"<a href=\"/slides.html\">Slides</a>"
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"<a href=\"/about-me.html\">About</a>")
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lst)
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" | ")
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"</navigation>"))
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(defun str-time-to-year-float (date-str)
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(/ (float-time
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(apply 'encode-time
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(mapcar (lambda (x) (if (null x) 0 x))
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(parse-time-string date-str))))
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(* 365.25 24 60 60)))
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(defvar blog-creation-date "2019-07-01")
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(defun y-date (date-str)
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"Number of year since the begining of this blog"
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(let ((y (- (str-time-to-year-float date-str)
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(str-time-to-year-float blog-creation-date))))
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(format "∆t=%.2f" y)))
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(defun get-from-info (info k)
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(let ((i (car (plist-get info k))))
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(when (and i (stringp i))
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i)))
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(defun org-blog-preamble (info)
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"Pre-amble for whole blog."
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(concat
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"<div class=\"content\">"
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(menu '("<a href=\"#postamble\">↓ bottom ↓</a>"))
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"<h1>"
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(format "%s" (car (plist-get info :title)))
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"</h1>"
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(when-let ((date (plist-get info :date)))
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(format "<span class=\"article-date\">%s</span>"
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(format-time-string "%Y-%m-%d"
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(org-timestamp-to-time
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(car date)))))
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(when-let ((subtitle (car (plist-get info :subtitle))))
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(format "<h2>%s</h2>" subtitle))
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"</div>"))
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(defun rand-obfs (c)
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(let ((r (% (random) 20)))
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(cond ;; ((eq 0 r) (format "%c" c))
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((<= 0 r 10) (format "&#%d;" c))
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(t (format "&#x%X;" c)))))
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(defun obfuscate-html (txt)
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(apply 'concat
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(mapcar 'rand-obfs txt)))
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(defun org-blog-postamble (info)
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"Post-amble for whole blog."
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(concat
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"<div class=\"content\">"
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;; TODO install a comment system
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;; (let ((url (format "%s%s" domainname (replace-regexp-in-string base-dir "" (plist-get info :input-file)))))
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;; (format "<a href=\"https://comments.esy.fun/slug/%s\">comment</a>"
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;; (url-hexify-string url)))
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"<footer>"
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(when-let ((author (get-from-info info :author)))
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(if-let ((email (plist-get info :email)))
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(let* ((obfs-email (obfuscate-html email))
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(obfs-author (obfuscate-html author))
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(obfs-title (obfuscate-html (get-from-info info :title)))
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(full-email (format "%s <%s>" obfs-author obfs-email)))
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(format "<div class=\"author\">Author: <a href=\"%s%s%s%s\">%s</a></div>"
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(obfuscate-html "mailto:")
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full-email
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(obfuscate-html "?subject=yblog: ")
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obfs-title
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full-email))
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(format "<div class=\"author\">Author: %s</div>" author)))
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(when-let ((date (get-from-info info :date)))
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(format "<div class=\"date\">Created: %s (%s)</div>" date (y-date date)))
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(when-let ((keywords (plist-get info :keywords)))
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(format "<div class=\"keywords\">Keywords: <code>%s</code></div>" keywords))
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(format "<div class=\"date\">Generated: %s</div>"
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(format-time-string "%Y-%m-%d %H:%M:%S"))
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(format (concat "<div class=\"creator\"> Generated with "
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"<a href=\"https://www.gnu.org/software/emacs/\" target=\"_blank\" rel=\"noopener noreferrer\">Emacs %s</a>, "
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"<a href=\"http://spacemacs.org\" target=\"_blank\" rel=\"noopener noreferrer\">Spacemacs %s</a>, "
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"<a href=\"http://orgmode.org\" target=\"_blank\" rel=\"noopener noreferrer\">Org Mode %s</a>"
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"</div>")
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emacs-version spacemacs-version org-version)
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"</footer>"
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(menu '("<a href=\"#preamble\">↑ Top ↑</a>"))
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"</div>"))
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(defun date-format-entry (entry _style project)
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"Return string for each ENTRY in PROJECT."
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(when (string-match "posts/.*" entry)
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(let* ((file (org-publish--expand-file-name entry project))
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(title (org-publish-find-title entry project))
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(date (format-time-string "%Y-%m-%d" (org-publish-find-date entry project))))
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(format "- [%s] [[file:%s][%s]]\n" date file title))))
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(defun org-blog-sitemap-fn-descr (descr title list)
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"Return sitemap using TITLE and LIST returned by `org-blog-sitemap-format-entry'."
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(concat "#+TITLE: " title "\n"
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"#+AUTHOR: " author-name "\n"
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"#+EMAIL: " author-email "\n"
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"#+DESCRIPTION: " descr "\n"
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(mapconcat (lambda (li) (format "%s" (car li)))
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(seq-filter #'car (cdr list))
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"\n")))
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(defun org-blog-publish-to-html (plist filename pub-dir)
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"Same as `org-html-publish-to-html' but modifies html before finishing."
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(let ((file-path (org-html-publish-to-html plist filename pub-dir)))
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(with-current-buffer (find-file-noselect file-path)
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(goto-char (point-min))
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(search-forward "<body>")
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(insert (mapconcat 'identity
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'("<input id=\"light\">"
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"<input id=\"raw\">"
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"<input id=\"modern\">"
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"<input id=\"dark\">"
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"<input id=\"darkraw\">"
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"<div id=\"labels\">"
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"<div class=\"content\">"
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"Change theme: "
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"<a href=\"#light\">light</a>"
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"(<a href=\"#raw\">raw</a>,"
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"<a href=\"#modern\">modern</a>)"
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" / "
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"<a href=\"#dark\">dark</a>"
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"(<a href=\"#darkraw\">raw</a>)"
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"</div>"
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"</div>")
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"\n"))
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(save-buffer)
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(kill-buffer))
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file-path))
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(defun org-blog-publish-attachment (plist filename pub-dir)
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"Publish a file with no transformation of any kind.
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FILENAME is the filename of the Org file to be published. PLIST
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is the property list for the given project. PUB-DIR is the
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publishing directory.
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Take care of minimizing the pictures using imagemagick.
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Return output file name."
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(unless (file-directory-p pub-dir)
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(make-directory pub-dir t))
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(or (equal (expand-file-name (file-name-directory filename))
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(file-name-as-directory (expand-file-name pub-dir)))
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(let ((dst-file (expand-file-name (file-name-nondirectory filename) pub-dir)))
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(if (string-match-p ".*\\.\\(png\\|jpg\\|gif\\)$" filename)
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(shell-command (format "~/.nix-profile/bin/convert %s -resize 800x800\\> +dither -colors 16 -depth 4 %s"
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filename
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dst-file))
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(copy-file filename dst-file t)))))
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(defalias 'org-blog-posts-sitemap-fn
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(apply-partially 'org-blog-sitemap-fn-descr posts-descr))
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(defun y/org-rss-publish-to-rss (plist filename pub-dir)
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(if (equal "rss.org" (file-name-nondirectory filename))
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(org-rss-publish-to-rss plist filename pub-dir)))
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(defun y/format-rss-feed (title list)
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(concat "#+TITLE: " title "\n"
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"#+AUTHOR: " author-name "\n"
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"#+EMAIL: " author-email "\n"
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"#+DESCRIPTION: " rss-description "\n"
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"\n"
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(org-list-to-subtree list '(:icount "" :istart ""))))
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(defun y/format-rss-feed-entry (entry style project)
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(cond ((not (directory-name-p entry))
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(let* ((file (org-publish--expand-file-name entry project))
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(title (org-publish-find-title entry project))
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(date (format-time-string "%Y-%m-%d" (org-publish-find-date entry project)))
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(link (concat domainname "/posts/" (file-name-sans-extension entry) ".html")))
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(with-temp-buffer
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(insert (format "* [[file:%s][%s]]\n" file title))
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(org-set-property "RSS_PERMALINK" link)
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(org-set-property "PUBDATE" date)
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(org-set-property "ID" (org-auto-id-format title))
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(buffer-string))))
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((eq style 'tree)
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(file-name-nondirectory (directory-file-name entry)))))
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(setq org-publish-project-alist
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`(("orgfiles"
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:base-directory ,base-dir
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:exclude ".*drafts/.*\\|.*/rss.*"
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:base-extension "org"
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:publishing-directory ,publish-dir
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:recursive t
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:publishing-function org-blog-publish-to-html
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:with-toc nil
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:with-title nil
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:with-date t
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:section-numbers nil
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:html-doctype "html5"
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:html-html5-fancy t
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:html-head-include-default-style nil
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:html-head-include-scripts nil
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:htmlized-source t
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:html-head-extra ,org-blog-head
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:html-preamble org-blog-preamble
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:html-postamble org-blog-postamble
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:auto-sitemap t
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:sitemap-filename "archive.org"
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:sitemap-title "Articles"
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:sitemap-style list
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:sitemap-sort-files anti-chronologically
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:sitemap-format-entry date-format-entry
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:sitemap-function org-blog-posts-sitemap-fn)
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("rss"
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:base-directory ,posts-dir
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:base-extension "org"
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:recursive t
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:publishing-directory ,publish-dir
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:publishing-function y/org-rss-publish-to-rss
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:rss-extension "xml"
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:rss-image-url "https://her.esy.fun/img/FlatAvatar.png"
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:auto-sitemap t
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:sitemap-filename "rss.org"
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:sitemap-title "her.esy.fun"
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:sitemap-style list
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:sitemap-function y/format-rss-feed
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:sitemap-format-entry y/format-rss-feed-entry)
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("assets"
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:base-directory ,assets-dir
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:base-extension ".*"
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:exclude ".*\.org$"
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:publishing-directory ,publish-assets-dir
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:publishing-function org-blog-publish-attachment
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:recursive t)
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("blog" :components ("orgfiles" "assets"))))
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;; add target=_blank and rel="noopener noreferrer" to all links by default
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(defun my-org-export-add-target-blank-to-http-links (text backend info)
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"Add target=\"_blank\" to external links."
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(when (and
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(org-export-derived-backend-p backend 'html)
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(string-match "href=\"http[^\"]+" text)
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(not (string-match "target=\"" text))
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(not (string-match (concat "href=\"" domainname "[^\"]*") text)))
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(string-match "<a " text)
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(replace-match "<a target=\"_blank\" rel=\"noopener noreferrer\" " nil nil text)))
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(add-to-list 'org-export-filter-link-functions
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'my-org-export-add-target-blank-to-http-links)
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(provide 'her-esy-fun-publish)
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