/
bootstrap.el
executable file
·139 lines (130 loc) · 6.18 KB
/
bootstrap.el
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;;; bootstrap.el
;;
;; Author: Adrien Brochard
;; URL: https://github.com/abrochard/emacs-config
;;
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;;
;; kickstart the config by pulling the latest
;; and tangle the org files into .el
;;
;; Heavily inspired by the great http://www.holgerschurig.de/en/emacs-efficiently-untangling-elisp/
;; Thanks a lot to him
(defvar config-no-auto-update nil)
(defvar config-load-path (file-name-directory (or load-file-name buffer-file-name)))
(defvar config-org-files '("configuration.org" "cheatsheet.org"))
(defvar config-use-fallback nil)
;; Startup metrics
(add-hook 'emacs-startup-hook
(lambda ()
(message "Emacs ready in %s with %d garbage collections."
(format "%.2f seconds"
(float-time
(time-subtract after-init-time before-init-time)))
gcs-done)))
(defun tangle-config-org (orgfile elfile)
"This function will write all source blocks from an org file into a el file that are
- not marked as :tangle no
- have a source-code of =emacs-lisp="
(let* ((body-list ())
(gc-cons-threshold most-positive-fixnum)
(org-babel-src-block-regexp (concat
;; (1) indentation (2) lang
"^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
;; (3) switches
"\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
;; (4) header arguments
"\\([^\n]*\\)\n"
;; (5) body
"\\([^\000]*?\n\\)??[ \t]*#\\+end_src")))
(with-temp-buffer
(insert-file-contents orgfile)
(goto-char (point-min))
(while (re-search-forward org-babel-src-block-regexp nil t)
(let ((lang (match-string 2))
(args (match-string 4))
(body (match-string 5)))
(when (and (string= lang "emacs-lisp")
(not (string-match-p ":tangle\\s-+no" args)))
(add-to-list 'body-list body)))))
(with-temp-file elfile
(insert (format ";; Don't edit this file, edit %s instead ...\n\n" orgfile))
(apply 'insert (reverse body-list)))
(message "Wrote %s ..." elfile)))
(defun bootstrap-config ()
"Pull latest config and tangle if needed."
(unless config-no-auto-update
(shell-command (concat "cd " config-load-path " && git pull")))
(dolist (file config-org-files)
(let ((orgfile (concat config-load-path file))
(elfile (concat config-load-path (replace-regexp-in-string ".org" ".el" file))))
(when (or (not (file-exists-p elfile))
(file-newer-than-file-p orgfile elfile))
(tangle-config-org orgfile elfile))
(load-file elfile))))
(defun bootstrap-config-fallback ()
"Just in case."
(unless config-no-auto-update
(shell-command (concat "cd " config-load-path " && git pull")))
(package-initialize)
(require 'org)
(dolist (file config-org-files)
(org-babel-load-file (concat config-load-path file))))
(if (not config-use-fallback)
(bootstrap-config)
(bootstrap-config-fallback))
;; bootstrap.el ends here