| commit | author | age | ||
| 76bbd0 | 1 | ;; ob-hledger.el --- Babel Functions for hledger -*- lexical-binding: t; -*- |
| C | 2 | |
| 3 | ;; Copyright (C) 2010-2018 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | ;; Author: Simon Michael | |
| 6 | ;; Keywords: literate programming, reproducible research, plain text accounting | |
| 7 | ;; Homepage: https://orgmode.org | |
| 8 | ||
| 9 | ;; This file is part of GNU Emacs. | |
| 10 | ||
| 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 12 | ;; it under the terms of the GNU General Public License as published by | |
| 13 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 14 | ;; (at your option) any later version. | |
| 15 | ||
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | ;; GNU General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. | |
| 23 | ||
| 24 | ;;; Commentary: | |
| 25 | ||
| 26 | ;; Babel support for evaluating hledger entries. | |
| 27 | ;; | |
| 28 | ;; Based on ob-ledger.el. | |
| 29 | ;; If the source block is empty, hledger will use a default journal file, | |
| 30 | ;; probably ~/.hledger.journal (it may not notice your $LEDGER_FILE env var). | |
| 31 | ;; So make ~/.hledger.journal a symbolic link to the real file if necessary. | |
| 32 | ||
| 33 | ;;; Code: | |
| 34 | (require 'ob) | |
| 35 | ||
| 36 | (defvar org-babel-default-header-args:hledger | |
| 37 | '((:results . "output") (:exports . "results") (:cmdline . "bal")) | |
| 38 | "Default arguments to use when evaluating a hledger source block.") | |
| 39 | ||
| 40 | (defun org-babel-execute:hledger (body params) | |
| 41 | "Execute a block of hledger entries with org-babel. | |
| 42 | This function is called by `org-babel-execute-src-block'." | |
| 43 | (message "executing hledger source code block") | |
| 44 | (letrec ( ;(result-params (split-string (or (cdr (assq :results params)) ""))) | |
| 45 | (cmdline (cdr (assq :cmdline params))) | |
| 46 | (in-file (org-babel-temp-file "hledger-")) | |
| 47 | (out-file (org-babel-temp-file "hledger-output-")) | |
| 48 | (hledgercmd (concat "hledger" | |
| 49 | (if (> (length body) 0) | |
| 50 | (concat " -f " (org-babel-process-file-name in-file)) | |
| 51 | "") | |
| 52 | " " cmdline))) | |
| 53 | (with-temp-file in-file (insert body)) | |
| 54 | ;; TODO This is calling for some refactoring: | |
| 55 | ;; (concat "hledger" (if ...) " " cmdline) | |
| 56 | ;; could be built only once and bound to a symbol. | |
| 57 | (message "%s" hledgercmd) | |
| 58 | (with-output-to-string | |
| 59 | (shell-command (concat hledgercmd " > " (org-babel-process-file-name out-file)))) | |
| 60 | (with-temp-buffer (insert-file-contents out-file) (buffer-string)))) | |
| 61 | ||
| 62 | (defun org-babel-prep-session:hledger (_session _params) | |
| 63 | (error "hledger does not support sessions")) | |
| 64 | ||
| 65 | (provide 'ob-hledger) | |
| 66 | ||
| 67 | ||
| 68 | ||
| 69 | ;;; ob-hledger.el ends here | |
| 70 | ;; TODO Unit tests are more than welcome, too. | |
