;;; build-assets.el --- Asset URLs and publishing helpers -*- lexical-binding: t; -*-
;;; Code:
(defun z/asset-version (path)
"Return a cache-busting version string for asset PATH under `z/site-root'."
(let* ((file (site-path path))
(attrs (and (file-exists-p file) (file-attributes file)))
(mtime (and attrs (file-attribute-modification-time attrs)))
(size (and attrs (file-attribute-size attrs))))
(if (and mtime size)
(format "%x-%x" (floor (float-time mtime)) size)
(format "%x" (floor z/build-start-time)))))
(defun z/asset-url (path)
"Return root-relative asset PATH with a deterministic cache-busting query."
(format "/%s?v=%s" path (z/asset-version path)))
(defvar z/shared-head
(concat
"\n"
(mapconcat
(lambda (f)
(format ""
(z/asset-url (format "assets/styles/%s" f))))
'("style.css"
"bigger-picture.min.css"
"comments.css"
"kanban.css"
"org-syntax.css"
"misc.css"
"media.css"
"wird-tracker.css"
"zhd.css"
"play.css"
"hidden-details.css")
"\n")
"\n"
(mapconcat
(lambda (f)
(format ""
(z/asset-url (format "assets/scripts/%s" f))))
'("script.js"
"lunr.js"
"competency-status-board.js"
"notes.js"
"comments.js"
"bigger-picture.min.js"
"search.js"
"svg-pan-zoom.min.js"
"gallery-init.js"
"sitemap-interactive.js"
"wird-tracker.js"
"zhd.js"
"play.js"
"ash-below-lake.js"
"hidden-details.js")
"\n")
(format ""
(z/asset-url "assets/scripts/mermaid.min.js")))
"Shared HTML fragment injected into every page.")
(defun z/sync-assets-to-output ()
"Copy assets/ into the configured output assets directory, overwriting stale files."
(let ((source-root (site-path "assets/"))
(target-root (output-path "assets/")))
(when (file-directory-p source-root)
(dolist (file (directory-files-recursively source-root ".*" nil))
(unless (file-directory-p file)
(let* ((rel (file-relative-name file source-root))
(target (expand-file-name rel target-root)))
(make-directory (file-name-directory target) t)
(copy-file file target t t t t)))))))
(provide 'build-assets)
;;; build-assets.el ends here