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o-blog.el
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;;; o-blog.el --- Org-blog exporter
;; Copyright © 2012 Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
;; Author: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
;; Keywords: emacs,
;; Created: 2012-01-04
;; Last changed: 2012-07-13 12:38:17
;; Licence: WTFPL, grab your copy here: http://sam.zoy.org/wtfpl/
;; This file is NOT part of GNU Emacs.
;;; Commentary:
;;
;;; Code:
(eval-when-compile
(require 'cl nil t)
(require 'browse-url nil t))
(require 'ob-ditaa nil t)
(require 'htmlize nil t)
(require 'sgml-mode nil t)
(require 'html2text nil t)
(require 'time-stamp nil t)
(require 'org-xhtml nil t)
(require 'dired-sync nil t)
(require 'find-func nil t)
(mapcar (lambda (x) (require (intern (format "o-blog-%s" x)) nil t))
'("alert" "copy-files" "source" "grid" "i18n" "bootstrap"))
(defconst o-blog-version "1.2" "o-blog version number")
(defconst o-blog-bug-report-url "https://github.com/renard/o-blog/issues/new"
"Url for bug report.")
(defgroup o-blog nil "o-blog customization group"
:group 'org-export)
(defcustom o-blog-async-opts nil
"Extra options to be used when compiling with
`org-publish-blog-async'."
:group 'o-blog
:type 'list)
(defcustom o-blog-before-publish-hook nil
"Hook to be run before publishing a blog.
Each hook is a function that could be called with no parameter."
:group 'o-blog
:type 'hook)
(defcustom o-blog-after-publish-hook nil
"Hook to be run after publishing a blog.
Each hook is a function that could be called with no parameter."
:group 'o-blog
:type 'hook)
(defcustom o-blog-html-plugins-hook nil
"Hook to be run before exporting an entry to HTML in
`ob-get-entry-text'. Each hook is a function that could be called
with no parameter.
This is a good place for o-blog parser plugins."
:group 'o-blog
:type 'hook)
(defstruct (ob:blog :named)
"Blog structure
- file: the blog source file (read-only).
- buffer: buffer visiting the blog file (read-only).
- publish-dir: where to publish the blog defined by the
\"#+PUBLISH_DIR:\" header directive or out in the same
directory as the blog source file.
- template-dir: location of the template directory defined by
the \"#+TEMPLATE_DIR:\" header directive or the templates
directory of the o-blog library.
- style-dir: path of the \"css\" files defined by the
\"#STYLE_DIR:\" header directive or style. This directory is
relative to \"template-dir\".
- posts-filter: default filter for post defined by the
\"#POSTS_FILTER:\" header directive or \"+TODO=\\\"DONE\\\".
- static-filter: default filter for static pages defined by the
\"#STATIC_FILTER:\" header directive or \"+PAGES={.*}\.
- snippet-filter default filter for snippets defined by the
\"#SNIPPET_FILTER:\" header directive or \"+SNIPPET={.*}\".
- title: Blog title defined by the \"#+TITLE:\" header
directive.
- description: blog description defined by the
\"#+DESCRIPTION:\" header directive.
- url: Blog base URL defined by the \"#+URL:\" header.
- language: Blog language defined by the \"#+LANGUAGE:\" header
or \"en\".
- default-category: default category for posts defined by the
\"#DEFAULT_CATEGORY:\" header or \"Blog\".
- disqus: disqus account (called a forum on Disqus) this system
belongs to. Defined by the \"#DISQUS\" header.
- filename-sanitizer: 1-argument function to be used to sanitize
post filenames. Defined by \#+FILENAME_SANITIZER:\" or
\"ob-sanitize-string\".
- post-sorter: a 2-argument function to be used to sort the
posts. Defined by \"#+POSTS_SORTER:\"
or \"ob-sort-posts-by-date\".
- post-filepath: a 3-argument function to be used to generate
the post path in output directory. Defined by
\"#+POSTS_FILEPATH:\" or \"ob-set-default-filepath\".
- post-htmlfile: a 3-argument function to be used to generate
the post html filename in output directory. Defined by
\"#+POSTS_HTMLFILE:\" or \"ob-set-default-htmlfile\".
"
(file nil :read-only)
(buffer nil :read-only)
publish-dir
template-dir
style-dir
posts-filter
static-filter
snippet-filter
title
description
url
language
post-build-shell
default-category
disqus
filename-sanitizer
posts-sorter
posts-filepath
posts-htmlfile)
(defstruct (ob:post :named)
"Post structure
- id: the post numerical id. Posts are sort by reversed
chronological order. The most recent post get the id 0.
- title: the post title read from the entry title.
- timestamp: the post timestamp given by the \"CLOSED\" property
or the current time.
- year: numerical year computed from \"timestamp\".
- month: numerical month computed from \"timestamp\".
- day: numerical day computed from \"timestamp\".
- category: category read from \"CATEGORY\" property org
\"blog\".
- tags: list of ob:tags.
- template: template to use for current post read from
\"TEMPLATE\" property or \"blog_post.html\".
- filepath: relative path from the blog root directory to the
post directory (directory only).
- filename: sanitized filename generated from \"title\".
- htmlfile: full relative path to the post html file (file and
directory).
- path-to-root: relative path from the post html file to the
blog root.
- content: raw content of the post (org-mode format).
- content-html: HTML export of the post.
- sitemap: Whether to publish in sitemap."
id
title
timestamp
year
month
day
category
tags
template
filepath
filename
htmlfile
path-to-root
content
content-html
sitemap)
(defstruct (ob:tags :named)
"Tag structure with following slots:
- name: string defying the tag name.
- safe: web safe tag name for URL.
- count: how many time the tag is used.
- size: the font size in percent."
name safe count size)
(defstruct (ob:category :named)
"Category structure with following slots:
- name: string defying the category name.
- safe: web safe category name for URL."
name safe)
;;;###autoload
;;;###autoload
(defun o-blog-version (&optional here)
"Message the current o-blog version. If call using
`universal-argument', insert value in current position."
(interactive "P")
(let* ((default-directory (file-name-directory (locate-library "o-blog")))
(has-git (and (file-exists-p (expand-file-name ".git"))
(executable-find "git")))
(version (if has-git
(substring (shell-command-to-string "git describe") 0 -1)
o-blog-version))
(msg (format "o-blog version %s" version)))
(if here
(insert msg)
(message msg))))
(defun o-blog-bug-report (backtrace)
"Copy (`kill-new') information to be posted to o-blog github
issues page in selection buffer and open
`o-blog-bug-report-url'. Version information can be posted in the
message box on github page."
(interactive)
(let* ((default-directory (file-name-directory (locate-library "o-blog")))
(has-git (and (file-exists-p (expand-file-name ".git"))
(executable-find "git")))
(version (if has-git
(substring (shell-command-to-string "git describe") 0 -1)
o-blog-version))
(msg (format "o-blog version %s" version))
(id (if has-git
(shell-command-to-string "git --no-pager log -n1 --format=format:%H")
""))
(submodules (if has-git
(substring
(shell-command-to-string "git submodule") 0 -1)
""))
(msg (if has-git
(format " %s o-blog (%s)\n%s" id version submodules)
(format "o-blog version %s" version)))
(bug-report-str (format
"
Add your description here
%s
**Configuration**
* Emacs
```
%s
```
* Org-mode
```
%s
```
* o-blog
```
%s
```"
(if backtrace
(format "**Backtrace**\n\n```\n%s\n```\n\n" backtrace)
"")
(emacs-version) (org-version) msg)))
(switch-to-buffer (get-buffer-create "o-blog Bug-report"))
(erase-buffer)
(insert bug-report-str)
(when (functionp 'x-set-selection)
(x-set-selection 'PRIMARY bug-report-str))
(browse-url o-blog-bug-report-url)))
;;;###autoload
(defun org-publish-blog (&optional file async)
"Publish FILE as a blog synchronously execpt ib ASYNC is
defined, or interactivelly called with `prefix-arg'.
"
(interactive
(list (or
(when (eq major-mode 'org-mode) (buffer-file-name))
(read-file-name "Publish blog from: " nil nil t))
current-prefix-arg))
(if async
(org-publish-blog-async file)
(org-publish-blog-sync file)))
;;;###autoload
(defun org-publish-blog-sync (file)
"Publish FILE synchronously."
(with-current-buffer (or
(get-file-buffer file)
(find-file file))
(run-hooks 'o-blog-before-publish-hook)
(let* (;; Make sure `org-todo-keyword' is not set to a particular value
;; by user.
(org-todo-keywords (default-value 'org-todo-keywords))
(start-time (current-time)) ;; for statistic purposes only
;; make sure we are on the correct directory.
(default-directory (file-name-directory file))
STATIC
(BLOG (ob-parse-blog-headers))
(STATIC (append STATIC
(ob-parse-entries
(org-map-entries 'point-marker
(ob:blog-static-filter BLOG)
'file-with-archives))))
(POSTS (ob-parse-entries
(org-map-entries 'point-marker
(ob:blog-posts-filter BLOG)
'file-with-archives)))
(ALL-POSTS POSTS)
(SNIPPETS (ob-parse-entries
(org-map-entries 'point-marker
(ob:blog-snippet-filter BLOG)
'file-with-archives)))
(TAGS (ob-compute-tags POSTS)))
(ob-write-static)
(ob-write-posts)
(ob-write-tags)
(ob-write-index)
(let ((syncf (if (functionp 'dired-do-sync)
'dired-do-sync 'copy-directory)))
(funcall syncf (format "%s/%s"
(ob:blog-template-dir BLOG)
(ob:blog-style-dir BLOG))
(ob:blog-publish-dir BLOG)))
(run-hooks 'o-blog-after-publish-hook)
(message (format "Blog %s published in %ss"
file
(format-time-string "%s.%3N"
(time-subtract (current-time) start-time)))))))
(defun ob-do-copy (src dst &optional copyf args)
"Copy SRC into DST. If `dired-do-sync' is found it would be
preferred. Otherwise, `copy-directory' or `copy-files' would be
used.
A copy function COPYF and its arguments ARGS could be specified."
(let* ((dirp (file-directory-p src))
(copyf (cond
(copyf copyf)
((functionp 'dired-do-sync) 'dired-do-sync)
(dirp 'copy-directory)
(t 'copy-file)))
(args (or args
(when (eq 'copy-file copyf) '(t t t)))))
(apply copyf src dst args)))
(defun org-blog-publish-run-processes-sentinel (proc change)
"Sentinel in charge of cleaning `org-publish-blog-async' on success."
(when (eq (process-status proc) 'exit)
(let ((status (process-exit-status proc))
(cmd (process-get proc :cmd))
(cmd-buf (process-get proc :cmd-buf)))
(if (not (eq 0 status))
(progn
(when (process-buffer proc)
(set-window-buffer (selected-window) cmd-buf))
(error "Org blog ERROR: %s" cmd))
(message "Org blog OK: %s" cmd))
(when cmd-buf (kill-buffer cmd-buf)))))
(defun org-publish-blog-async (file)
"Publish FILE synchronously."
(let* ((cmd-line (append command-line-args
`("--batch"
"-l" ,(concat (file-name-as-directory
user-emacs-directory)
"init.el")
,@ob-async-opts
"--eval"
,(format "(org-publish-blog \"%s\")" file))))
(cmd-buf (get-buffer-create (format "ORG blog build %s" file)))
(proc (apply 'start-process (car cmd-line)
cmd-buf (car cmd-line) (cdr cmd-line))))
(message "Run: %S" cmd-line)
(process-put proc :cmd (format "Build %s" file))
(process-put proc :cmd-buf cmd-buf)
(set-process-sentinel proc 'org-blog-publish-run-processes-sentinel)))
;; Internal functions
(defun o-blog-publish-linked-files()
"Copy files (defined by \"file:\" link prefix) to page related directory."
(save-match-data
(save-excursion
(goto-char (point-min))
(let (ret)
(while (re-search-forward "\\(\\[file:\\)\\([^]]+\\)\\(\\]\\)" nil t)
(let ((prefix (match-string-no-properties 1))
(file (match-string-no-properties 2))
(suffix (match-string-no-properties 3)))
(when (file-exists-p file)
(replace-match
(format "%s%s/%s/%s%s"
prefix
(file-relative-name "." filepath)
(file-name-sans-extension htmlfile)
(file-name-nondirectory file) suffix ))
(add-to-list 'ret file))))
(when ret
;; create a redirection page as index.html into files' directory
(with-temp-buffer
(insert
(mapconcat 'identity
`(,(format "* Redirect from (%s)" title)
":PROPERTIES:"
,(format ":PAGE: %s/index.html" (file-name-sans-extension htmlfile))
":TEMPLATE: page_redirect.html"
":END:")
"\n"))
(org-mode)
(goto-char (point-min))
(setf STATIC (append STATIC (list (ob-parse-entry)))))
;; copy all files into their target directory.
(loop for f in ret
do (let ((target (format "%s/%s/%s"
(ob:blog-publish-dir BLOG)
;; file path is nil when exporting static page?
;;(or filepath ".")
(file-name-sans-extension htmlfile)
(file-name-nondirectory f))))
(mkdir (file-name-directory target) t)
(ob-do-copy f target))))))))
(add-hook 'o-blog-html-plugins-hook 'o-blog-publish-linked-files)
(defun ob-parse-blog-headers (&optional file)
"Parse blog related variable from current-buffer."
(let* ((file (or file (buffer-file-name)))
(blog (make-ob:blog :file file :buffer (current-buffer))))
(setf (ob:blog-publish-dir blog) (or (ob:get-header "PUBLISH_DIR") "out"))
(setf (ob:blog-template-dir blog) (or (ob:get-header "TEMPLATE_DIR")
(concat
(file-name-directory
(file-name-directory
(find-library-name "o-blog")))
"templates")))
(setf (ob:blog-style-dir blog) (or (ob:get-header "STYLE_DIR") "style"))
(setf (ob:blog-posts-filter blog) (or (ob:get-header "POSTS_FILTER") "+TODO=\"DONE\""))
(setf (ob:blog-static-filter blog) (or (ob:get-header "STATIC_FILTER") "+PAGE={.+\.html}"))
(setf (ob:blog-snippet-filter blog) (or (ob:get-header "SNIPPET_FILTER") "+SNIPPET={.+}"))
(setf (ob:blog-title blog) (or (ob:get-header "TITLE") "title"))
(setf (ob:blog-description blog) (or (ob:get-header "DESCRIPTION") "Description"))
(setf (ob:blog-url blog) (or (ob:get-header "URL") ""))
(setf (ob:blog-language blog) (or (ob:get-header "LANGUAGE") "en"))
(setf (ob:blog-post-build-shell blog) (ob:get-header "POST_BUILD_SHELL" t))
(setf (ob:blog-default-category blog) (or (ob:get-header "DEFAULT_CATEGORY") "Blog"))
(setf (ob:blog-disqus blog) (ob:get-header "DISQUS"))
(setf (ob:blog-filename-sanitizer blog)
(let ((ofs (ob:get-header "FILENAME_SANITIZER")))
(if (and ofs (functionp (intern ofs)))
(intern ofs)
'ob-sanitize-string)))
(setf (ob:blog-posts-sorter blog)
(let ((ops (ob:get-header "POSTS_SORTER")))
(if (and ops (functionp (intern ops)))
(intern ops)
'ob-sort-posts-by-date)))
(setf (ob:blog-posts-filepath blog)
(let ((ops (ob:get-header "POSTS_FILEPATH")))
(if (and ops (functionp (intern ops)))
(intern ops)
'ob-set-default-filepath)))
(setf (ob:blog-posts-htmlfile blog)
(let ((ops (ob:get-header "POSTS_HTMLFILE")))
(if (and ops (functionp (intern ops)))
(intern ops)
'ob-set-default-htmlfile)))
blog))
(defun ob-parse-entries (markers)
"Parse blog entries from current buffer.
MARKERS is a list of entries given by `org-map-entries'."
(save-excursion
(loop for marker in markers
with posts = nil
;; Parse each entry into posts
collect (with-current-buffer (marker-buffer marker)
(goto-char (marker-position marker))
(ob-parse-entry))
into posts
;; Then wee need to set the post id in all all sorted posts.
finally return (loop for post in (sort posts (ob:blog-posts-sorter BLOG))
with id = 0
do (setf (ob:post-id post) id)
and do (incf id 1)
and collect post))))
(defun ob-sort-posts-by-date (a b)
"Sort both A and B posts by date (newer posts first)."
(> (float-time (ob:post-timestamp a))
(float-time (ob:post-timestamp b))))
(defun ob-sort-posts-by-title (a b)
"Sort alphabetically both A and B posts by title."
(string> (ob:post-title a)
(ob:post-title b)))
(defun ob-set-default-filepath (category year month)
"Create a default filepath using CATEGEORY YEAR and MONTH which
looks like:
CATEGORY/YYYY/MM
See also `ob-set-default-htmlfile', `ob-parse-entry'."
(format "%s/%.4d/%.2d" category year month))
(defun ob-set-default-htmlfile (filepath day filename)
"Create a default htmlfile using FILEPATH DAY and FILENAME which
looks like:
FILEPATH/DD_FILENAME.html
See also `ob-set-default-filepath', `ob-parse-entry'."
(format "%s/%.2d_%s.html" filepath day filename))
(defun ob-parse-entry()
"Parse blog entry from current position"
(when (search-forward-regexp org-complex-heading-regexp
(point-at-eol)
t)
(let* ((title (match-string-no-properties 4))
;; tags is a list of `ob:tags'
;; to be compliant with org tag syntax (no "-" org space)
;; "_" would be replaced with " " and "@" by "-"
(tags (loop for tn in (org-get-local-tags)
with td
do (setf td
(replace-regexp-in-string
"_" " "
(replace-regexp-in-string "@" "-" tn)))
and collect (make-ob:tags
:name td
:safe (ob:sanitize-string td))))
;; Timestamp is taken from either the CLOSED property or the
;; current timestamp.
(timestamp (apply 'encode-time
(org-parse-time-string
(or (org-entry-get (point) "CLOSED")
(time-stamp-string "%:y-%02m-%02d %02H:%02M:%02S %u")))))
;; Some other time variables
(year (string-to-number (format-time-string "%Y" timestamp)))
(month (string-to-number (format-time-string "%m" timestamp)))
(day (string-to-number (format-time-string "%d" timestamp)))
(category (or (org-entry-get (point) "category")
(car (last (org-get-outline-path)))
(org-entry-get (point) "ARCHIVE_OLPATH")
(ob:blog-default-category BLOG)))
(category-safe (ob:sanitize-string category))
(page (org-entry-get (point) "PAGE"))
(filename (or (org-entry-get (point) "CUSTOM_ID")
(ob:sanitize-string title)))
(filepath (funcall (ob:blog-posts-filepath BLOG) category-safe year month))
(htmlfile (funcall (ob:blog-posts-htmlfile BLOG) filepath day filename))
(content (ob-get-entry-text)))
(when page
(setq htmlfile page
filename (file-name-sans-extension (file-name-nondirectory htmlfile))
filepath (file-name-directory htmlfile)))
(make-ob:post :title title
:tags tags
:timestamp timestamp
:year year
:month month
:day day
:filename filename
:filepath filepath
:path-to-root (file-relative-name "." filepath)
:htmlfile htmlfile
:template (or (org-entry-get (point) "TEMPLATE")
(if page "blog_static.html" "blog_post.html"))
:content content
:content-html (ob-export-string-to-html content)
:category (make-ob:category
:name category
:safe category-safe)
:sitemap (or (org-entry-get (point) "SITEMAP"))
))))
(defun ob-get-entry-text ()
"Return entry text from point with not properties.
Please note that a blank line _MUST_ be present between entry
headers and body."
(save-excursion
(save-restriction
(save-match-data
(org-narrow-to-subtree)
(let ((text (buffer-string)))
(with-temp-buffer
(insert text)
(goto-char (point-min))
(org-mode)
(while (<= 2 (save-match-data (funcall outline-level)))
(org-promote-subtree))
(run-hooks 'o-blog-html-plugins-hook)
(goto-char (point-min))
(when (search-forward-regexp "^\\s-*$" nil t)
(goto-char (match-end 0)))
(save-excursion
(insert "#+OPTIONS: H:7 num:nil toc:nil d:nil todo:nil <:nil pri:nil tags:nil\n\n"))
(buffer-substring-no-properties (point) (point-max))))))))
(defun ob-export-string-to-html (string)
"Convert STRING to html using `org-mode' syntax."
(with-temp-buffer
(insert string)
(org-mode)
(goto-char (point-min))
;; exporting block with ditaa is kinda messy since it requires a real
;; file (does not work with a temp-buffer which is not associated to any
;; file).
(let ((saved-file
(when
(re-search-forward "^#\\+BEGIN_SRC:?[ \t]+\\(ditaa\\)" nil t)
(format "/%s/%s/%s.src.org"
default-directory
(ob:blog-publish-dir BLOG)
;; variable inherited from `ob-parse-entry'
htmlfile)))
(org-confirm-babel-evaluate nil)
ret)
(when saved-file
(mkdir (file-name-directory saved-file) t)
(write-file saved-file))
(setq ret (substring-no-properties (org-export-as-html nil nil nil 'string t)))
(when saved-file
(delete-file saved-file))
ret)))
(defun ob-compute-tags (posts &optional min_r max_r)
"Return a list of all tags sorted by usage.
Each item is: \(TAG COUNT PERCENT \)
CONTENT-LIST is a list of all articles such as generated in
`org-publish-blog'.
MIN_R and MAX_R are the minimum and maximum percentage value. If
not provided 80 and 220 are used."
(let* ((tags (sort (loop for post in posts
append (loop for tn in (ob:post-tags post)
when (ob:tags-p tn)
collect (ob:tags-name tn)))
#'string<))
(min_r (or min_r 80))
(max_r (or max_r 220))
(min_f (length tags))
(max_f 0))
(loop for item in
;; Here extract uniq tags and count occurrences
;; (such as uniq -c does)
;; Each item of returned list is
;; (VALUE COUNT)
(loop for (i . j) on tags
with k = 1
when (string= i (car j)) do (incf k)
else collect (progn
(when (> k max_f) (setf max_f k))
(when (< k min_f) (setf min_f k))
(cons i (list k)))
and do (setf k 1))
collect (let ((val (cadr item)))
(make-ob:tags
:name (car item)
:safe (ob:sanitize-string (car item))
:count val
;; This is the tricky part
;; Formula is:
;; % = min_r + (val - min_f) * (max_r - min_r) / (max_f - min_f)
;; the `max' is on purpose in case of max_f = min_f
:size (+ min_r
(/
(* (- val min_f) (- max_r min_r))
(max 1.0 (float (- max_f min_f))))))))))
(defun ob-eval-lisp()
"Eval embeded lisp code defined by <lisp> tags in html fragment
when publishing a page."
(save-excursion
(save-restriction
(save-match-data
;; needed for thing-at-point
(html-mode)
(beginning-of-buffer)
(let ((open-tag "<lisp>\\|{lisp}\\|\\[lisp\\]")
(close-tag "</lisp>\\|{/lisp}\\|\\[/lisp\\]")
beg end sexp)
(while (search-forward-regexp open-tag nil t)
(setq beg (- (point) (length (match-string 0))))
(when (search-forward-regexp close-tag nil t)
(setq end (point))
(backward-char (length (match-string 0)))
(backward-sexp)
(setq sexp (substring-no-properties (thing-at-point 'sexp)))
(narrow-to-region beg end)
(delete-region (point-min) (point-max))
(insert
(save-match-data
(condition-case err
(let ((object (eval (read sexp))))
(cond
;; result is a string
((stringp object) object)
;; a list
((and (listp object)
(not (eq object nil)))
(let ((string (pp-to-string object)))
(substring string 0 (1- (length string)))))
;; a number
((numberp object)
(number-to-string object))
;; nil
((eq object nil) "")
;; otherwise
(t (pp-to-string object))))
;; error handler
(error
(format "Lisp error in %s: %s" (buffer-file-name) err)))))
(goto-char (point-min))
(widen))))))))
;; Publish functions
(defun ob-write-file (file)
"Write current buffer to FILE and create full path if necessary."
(mkdir (file-name-directory file) t)
(write-file file))
(defun ob-write-index()
"Publish all indexes (default, categories, year, month)"
(let ((BREADCRUMB "Archives"))
(ob-write-index-to-file "blog_archives.html"
(format "%s/archives.html"
(ob:blog-publish-dir BLOG))))
(ob-write-index-to-file "blog_rss.html"
(format "%s/index.xml"
(ob:blog-publish-dir BLOG)))
(ob-write-index-to-file "blog_sitemap.html"
(format "%s/sitemap.xml"
(ob:blog-publish-dir BLOG)))
(loop for CATEGORY in (ob:get-posts nil nil nil 'category)
with PATH-TO-ROOT = ".."
do
(loop for YEAR in (ob:get-posts
(lambda (x) (equal CATEGORY (ob:post-category x)))
nil nil 'year)
with PATH-TO-ROOT = "../.."
do
(loop for MONTH in (ob:get-posts
(lambda (x) (and
(equal CATEGORY (ob:post-category x))
(= YEAR (ob:post-year x))))
nil nil 'month)
with PATH-TO-ROOT = "../../.."
do (ob-process-index "blog_index_month.html" CATEGORY YEAR MONTH))
and do (ob-process-index "blog_index_year.html" CATEGORY YEAR))
and do (unless (equal "." CATEGORY)
(ob-process-index "blog_index_category.html" CATEGORY))))
(defun ob-process-index (template &optional category year month)
"Low-level function for `ob-write-index'.
Template is read from TEMPLATE file.
If provided CATEGORY YEAR and MONTH are used to select articles."
(let* ((fp (format "%s/%s/index.html"
(ob:blog-publish-dir BLOG)
(cond
((and category year month) (format "%s/%.4d/%.2d"
(ob:category-safe category)
year month))
((and category year) (format "%s/%.4d"
(ob:category-safe category) year))
(t (ob:category-safe category)))))
(POSTS (ob:get-posts
(lambda (x) (and
(if category (equal
(ob:category-name category)
(ob:category-name (ob:post-category x)))
t)
(if year (= year (ob:post-year x)) t)
(if month (= month (ob:post-month x)) t))))))
(ob-write-index-to-file template fp)))
(defun ob-write-index-to-file (template outfile)
""
(with-temp-buffer
"*ORG blog publish index*"
(erase-buffer)
(insert-file-contents
(format "%s/%s" (ob:blog-template-dir BLOG) template))
(ob-eval-lisp)
(ob-write-file outfile)))
(defun ob-write-static ()
"Publish static pages"
(loop for POST in STATIC
do (ob-write-index-to-file
(ob:post-template POST)
(format "%s/%s"
(ob:blog-publish-dir BLOG)
(ob:post-htmlfile POST)))))
(defun ob-write-posts ()
"Publish all posts"
(loop for POST in POSTS
do (ob-write-index-to-file
(ob:post-template POST)
(format "%s/%s"
(ob:blog-publish-dir BLOG)
(ob:post-htmlfile POST)))))
(defun ob-write-tags ()
"Publish all tags into directory named \"tags\"."
(let ((PATH-TO-ROOT "..")
(BREADCRUMB "Tags"))
(ob-write-index-to-file "blog_tags.html"
(format "%s/tags/index.html"
(ob:blog-publish-dir BLOG)))
(loop for TAG in TAGS
do
(ob-write-index-to-file "blog_tags-details.html"
(format "%s/tags/%s.html"
(ob:blog-publish-dir BLOG)
(ob:tags-safe TAG))))))
(defun ob-sanitize-string (s)
"Sanitize string S by:
- converting all charcters ton pure ASCII
- replacing non alphanumerical chars to \"-\"
- downcasing all letters
- trimming leading and tailing \"-\""
(loop for c across s
with cd
with gc
with ret
do (progn
(setf gc (get-char-code-property c 'general-category))
(setf cd (get-char-code-property c 'decomposition)))
if (or (member gc '(Lu Ll Nd)) (= ?- c))
collect (downcase
(char-to-string (if cd (car cd) c)))
into ret
else if (member gc '(Zs))
collect "-" into ret
finally return (replace-regexp-in-string
"--+" "-"
(replace-regexp-in-string
"^-+\\|-+$" ""
(mapconcat 'identity ret "")))))
;; template accessible functions
(defun ob:sanitize-string(s)
"Sanitize string S using function defined by
`filename-sanitizer' slot in `ob:blog' structure."
(funcall (ob:blog-filename-sanitizer BLOG) s))
(defun ob:get-posts (&optional predicate count sortfunc collect)
"Return posts (from `POSTS' as defined in `org-publish-blog')
matching PREDICATE. Limit to COUNT results if defined and sorted
using SORTFUNC.
PREDICATE is a function run for each post with the post itself as
argument. If PREDICATE is nil, no filter would be done on posts.
SORTFUNC is used a `sort' PREDICATE.
If COLLECT is defined, only returns the COLLECT field of a
`ob:post' structure.
Examples:
- Getting last 10 posts:
\(ob:get-posts nil 10\)
- Getting post from January 2012:
\(ob:get-posts
\(lambda \(x\)
\(and \(= 2012 \(ob:post-year x\)\)
\(= 1 \(ob:post-month x\)\)\)\)\)
- getting all categories
\(ob:get-posts nil nil nil 'category\)
"
(let* ((posts (if predicate
(loop for post in POSTS
when (funcall predicate post)
collect post)
POSTS))
(len (length posts)))
(when (and count (> count 0) (< count len))
(setq posts (butlast posts (- len count))))
(when sortfunc
(setq posts (sort posts sortfunc)))
(when collect
(setq posts
(loop for post in posts
with ret = nil
collect (funcall (intern (format "ob:post-%s" collect)) post)
into ret
finally return (delete-dups ret))))
posts))
(defun ob:get-post-by-id (id)
"Return post which id is ID"
(when (>= id 0)
(nth id POSTS)))
(defun ob:get-snippet (name)
"Get first snippet matching NAME."
(let ((POSTS SNIPPETS))
(car
(ob:get-posts (lambda(x) (equal name (ob:post-title x)))))))
(defun ob:get-header (header &optional all)