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+;;; litorgy-shell.el --- litorgy functions for shell execution
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+
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+;; Copyright (C) 2009 Eric Schulte
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+
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+;; Author: Eric Schulte
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+;; Keywords: literate programming, reproducible research
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+;; Homepage: http://orgmode.org
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+;; Version: 0.01
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+
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+;;; License:
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+
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+;; This program is free software; you can redistribute it and/or modify
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+;; it under the terms of the GNU General Public License as published by
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+;; the Free Software Foundation; either version 3, or (at your option)
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+;; any later version.
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+;;
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+;; This program is distributed in the hope that it will be useful,
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+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+;; GNU General Public License for more details.
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+;;
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+;; You should have received a copy of the GNU General Public License
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+;; along with GNU Emacs; see the file COPYING. If not, write to the
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+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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+;; Boston, MA 02110-1301, USA.
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+
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+;;; Commentary:
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+
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+;; Litorgy support for evaluating sh, bash, and zsh shells
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+
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+;;; Code:
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+(require 'litorgy)
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+
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+(defun litorgy-shell-add-interpreter (var cmds)
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+ (set-default var cmds)
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+ (mapc (lambda (cmd)
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+ (setq litorgy-interpreters (cons cmd litorgy-interpreters))
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+ (eval
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+ `(defun ,(intern (concat "litorgy-execute:" cmd)) (body params)
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+ ,(concat "Evaluate a block of " cmd " shell with litorgy. This function is
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+called by `litorgy-execute-src-block'. This function is an
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+automatically generated wrapper for `litorgy-shell-execute'.")
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+ (litorgy-shell-execute ,cmd body params))))
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+ cmds))
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+
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+(defcustom litorgy-shell-interpreters '("sh" "bash" "zsh")
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+ "List of interpreters of shelling languages which can be
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+executed through litorgy."
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+ :group 'litorgy
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+ :set 'litorgy-shell-add-interpreter)
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+
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+(defun litorgy-shell-execute (cmd body params)
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+ "Run CMD on BODY obeying any options set with PARAMS."
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+ (message (format "executing %s code block..." cmd))
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+ (let ((vars (litorgy-reference-variables params)))
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+ (save-window-excursion
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+ (with-temp-buffer
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+ (if (> (length vars) 0)
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+ (error "currently no support for passing variables to shells"))
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+ (insert body)
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+ (shell-command-on-region (point-min) (point-max) cmd nil 'replace)
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+ (buffer-string)))))
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+
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+(provide 'litorgy-shell)
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+;;; litorgy-shell.el ends here
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Eric Schulte