doomemacs/bin/org-tangle
2017-05-04 11:03:31 +02:00

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#!/usr/bin/env emacs --script
;; -*- mode: emacs-lisp -*-
;; Extracts source blocks from org files and prints them to stdout. Debug/info
;; messages are directed to stderr and can be ignored. -l/--lang can be used to
;; only tangle blocks of a certain language.
;;
;; Usage: org-tangle [[-l|--lang] LANG] some-file.org another.org
;; Examples:
;; org-tangle modules/ui/doom/README.org > install_fira_mono.sh
;; org-tangle -l sh modules/lang/go/README.org | sh
(load "~/.emacs.d/core/core.el" nil t)
(require 'org-install)
(require 'org)
(require 'ob-tangle)
(defun *org-babel-tangle (orig-fn &rest args)
"Don't write tangled blocks to files, print them to stdout."
(cl-letf (((symbol-function 'write-region)
(lambda (start end filename &optional append visit lockname mustbenew)
(princ (buffer-string)))))
(apply orig-fn args)))
(advice-add #'org-babel-tangle :around #'*org-babel-tangle)
(let ((lang (when (member (car command-line-args-left) '("--lang" "-l"))
(pop command-line-args-left)
(pop command-line-args-left)))
(srcs (cl-remove-if-not 'file-exists-p command-line-args-left)))
(dolist (file srcs)
(org-babel-tangle-file file nil lang)))