mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-08-25 17:02:51 +00:00
212 lines
7.8 KiB
EmacsLisp
212 lines
7.8 KiB
EmacsLisp
;;; ob-sh.el --- org-babel functions for shell evaluation
|
|
|
|
;; Copyright (C) 2009-2013 Free Software Foundation, Inc.
|
|
|
|
;; Author: Eric Schulte
|
|
;; Keywords: literate programming, reproducible research
|
|
;; Homepage: http://orgmode.org
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;; Org-Babel support for evaluating shell source code.
|
|
|
|
;;; Code:
|
|
(require 'ob)
|
|
(require 'shell)
|
|
(eval-when-compile (require 'cl))
|
|
|
|
(declare-function org-babel-comint-in-buffer "ob-comint" (buffer &rest body))
|
|
(declare-function org-babel-comint-wait-for-output "ob-comint" (buffer))
|
|
(declare-function org-babel-comint-buffer-livep "ob-comint" (buffer))
|
|
(declare-function org-babel-comint-with-output "ob-comint" (meta &rest body))
|
|
(declare-function orgtbl-to-generic "org-table" (table params))
|
|
|
|
(defvar org-babel-default-header-args:sh '())
|
|
|
|
(defvar org-babel-sh-command "sh"
|
|
"Command used to invoke a shell.
|
|
This will be passed to `shell-command-on-region'")
|
|
|
|
(defcustom org-babel-sh-var-quote-fmt
|
|
"$(cat <<'BABEL_TABLE'\n%s\nBABEL_TABLE\n)"
|
|
"Format string used to escape variables when passed to shell scripts."
|
|
:group 'org-babel
|
|
:type 'string)
|
|
|
|
(defun org-babel-execute:sh (body params)
|
|
"Execute a block of Shell commands with Babel.
|
|
This function is called by `org-babel-execute-src-block'."
|
|
(let* ((session (org-babel-sh-initiate-session
|
|
(cdr (assoc :session params))))
|
|
(stdin ((lambda (stdin) (when stdin (org-babel-sh-var-to-string
|
|
(org-babel-ref-resolve stdin))))
|
|
(cdr (assoc :stdin params))))
|
|
(full-body (org-babel-expand-body:generic
|
|
body params (org-babel-variable-assignments:sh params))))
|
|
(org-babel-reassemble-table
|
|
(org-babel-sh-evaluate session full-body params stdin)
|
|
(org-babel-pick-name
|
|
(cdr (assoc :colname-names params)) (cdr (assoc :colnames params)))
|
|
(org-babel-pick-name
|
|
(cdr (assoc :rowname-names params)) (cdr (assoc :rownames params))))))
|
|
|
|
(defun org-babel-prep-session:sh (session params)
|
|
"Prepare SESSION according to the header arguments specified in PARAMS."
|
|
(let* ((session (org-babel-sh-initiate-session session))
|
|
(var-lines (org-babel-variable-assignments:sh params)))
|
|
(org-babel-comint-in-buffer session
|
|
(mapc (lambda (var)
|
|
(insert var) (comint-send-input nil t)
|
|
(org-babel-comint-wait-for-output session)) var-lines))
|
|
session))
|
|
|
|
(defun org-babel-load-session:sh (session body params)
|
|
"Load BODY into SESSION."
|
|
(save-window-excursion
|
|
(let ((buffer (org-babel-prep-session:sh session params)))
|
|
(with-current-buffer buffer
|
|
(goto-char (process-mark (get-buffer-process (current-buffer))))
|
|
(insert (org-babel-chomp body)))
|
|
buffer)))
|
|
|
|
;; helper functions
|
|
|
|
(defun org-babel-variable-assignments:sh (params)
|
|
"Return list of shell statements assigning the block's variables."
|
|
(let ((sep (cdr (assoc :separator params))))
|
|
(mapcar
|
|
(lambda (pair)
|
|
(format "%s=%s"
|
|
(car pair)
|
|
(org-babel-sh-var-to-sh (cdr pair) sep)))
|
|
(mapcar #'cdr (org-babel-get-header params :var)))))
|
|
|
|
(defun org-babel-sh-var-to-sh (var &optional sep)
|
|
"Convert an elisp value to a shell variable.
|
|
Convert an elisp var into a string of shell commands specifying a
|
|
var of the same value."
|
|
(format org-babel-sh-var-quote-fmt (org-babel-sh-var-to-string var sep)))
|
|
|
|
(defun org-babel-sh-var-to-string (var &optional sep)
|
|
"Convert an elisp value to a string."
|
|
(let ((echo-var (lambda (v) (if (stringp v) v (format "%S" v)))))
|
|
(cond
|
|
((and (listp var) (listp (car var)))
|
|
(orgtbl-to-generic var (list :sep (or sep "\t") :fmt echo-var)))
|
|
((listp var)
|
|
(mapconcat echo-var var "\n"))
|
|
(t (funcall echo-var var)))))
|
|
|
|
(defun org-babel-sh-table-or-results (results)
|
|
"Convert RESULTS to an appropriate elisp value.
|
|
If the results look like a table, then convert them into an
|
|
Emacs-lisp table, otherwise return the results as a string."
|
|
(org-babel-script-escape results))
|
|
|
|
(defun org-babel-sh-initiate-session (&optional session params)
|
|
"Initiate a session named SESSION according to PARAMS."
|
|
(when (and session (not (string= session "none")))
|
|
(save-window-excursion
|
|
(or (org-babel-comint-buffer-livep session)
|
|
(progn (shell session) (get-buffer (current-buffer)))))))
|
|
|
|
(defvar org-babel-sh-eoe-indicator "echo 'org_babel_sh_eoe'"
|
|
"String to indicate that evaluation has completed.")
|
|
(defvar org-babel-sh-eoe-output "org_babel_sh_eoe"
|
|
"String to indicate that evaluation has completed.")
|
|
|
|
(defun org-babel-sh-evaluate (session body &optional params stdin)
|
|
"Pass BODY to the Shell process in BUFFER.
|
|
If RESULT-TYPE equals 'output then return a list of the outputs
|
|
of the statements in BODY, if RESULT-TYPE equals 'value then
|
|
return the value of the last statement in BODY."
|
|
((lambda (results)
|
|
(when results
|
|
(let ((result-params (cdr (assoc :result-params params))))
|
|
(org-babel-result-cond result-params
|
|
results
|
|
(let ((tmp-file (org-babel-temp-file "sh-")))
|
|
(with-temp-file tmp-file (insert results))
|
|
(org-babel-import-elisp-from-file tmp-file))))))
|
|
(cond
|
|
(stdin ; external shell script w/STDIN
|
|
(let ((script-file (org-babel-temp-file "sh-script-"))
|
|
(stdin-file (org-babel-temp-file "sh-stdin-"))
|
|
(shebang (cdr (assoc :shebang params)))
|
|
(padline (not (string= "no" (cdr (assoc :padline params))))))
|
|
(with-temp-file script-file
|
|
(when shebang (insert (concat shebang "\n")))
|
|
(when padline (insert "\n"))
|
|
(insert body))
|
|
(set-file-modes script-file #o755)
|
|
(with-temp-file stdin-file (insert stdin))
|
|
(with-temp-buffer
|
|
(call-process-shell-command
|
|
(if shebang
|
|
script-file
|
|
(format "%s %s" org-babel-sh-command script-file))
|
|
stdin-file
|
|
(current-buffer))
|
|
(buffer-string))))
|
|
(session ; session evaluation
|
|
(mapconcat
|
|
#'org-babel-sh-strip-weird-long-prompt
|
|
(mapcar
|
|
#'org-babel-trim
|
|
(butlast
|
|
(org-babel-comint-with-output
|
|
(session org-babel-sh-eoe-output t body)
|
|
(mapc
|
|
(lambda (line)
|
|
(insert line)
|
|
(comint-send-input nil t)
|
|
(while (save-excursion
|
|
(goto-char comint-last-input-end)
|
|
(not (re-search-forward
|
|
comint-prompt-regexp nil t)))
|
|
(accept-process-output (get-buffer-process (current-buffer)))))
|
|
(append
|
|
(split-string (org-babel-trim body) "\n")
|
|
(list org-babel-sh-eoe-indicator))))
|
|
2)) "\n"))
|
|
('otherwise ; external shell script
|
|
(if (and (cdr (assoc :shebang params))
|
|
(> (length (cdr (assoc :shebang params))) 0))
|
|
(let ((script-file (org-babel-temp-file "sh-script-"))
|
|
(shebang (cdr (assoc :shebang params)))
|
|
(padline (not (string= "no" (cdr (assoc :padline params))))))
|
|
(with-temp-file script-file
|
|
(when shebang (insert (concat shebang "\n")))
|
|
(when padline (insert "\n"))
|
|
(insert body))
|
|
(set-file-modes script-file #o755)
|
|
(org-babel-eval script-file ""))
|
|
(org-babel-eval org-babel-sh-command (org-babel-trim body)))))))
|
|
|
|
(defun org-babel-sh-strip-weird-long-prompt (string)
|
|
"Remove prompt cruft from a string of shell output."
|
|
(while (string-match "^% +[\r\n$]+ *" string)
|
|
(setq string (substring string (match-end 0))))
|
|
string)
|
|
|
|
(provide 'ob-sh)
|
|
|
|
|
|
|
|
;;; ob-sh.el ends here
|