blob: 4984ff9bf45c87f5a7b82906418cc4459026b110 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
;;; 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 (let ((stdin (cdr (assoc :stdin params))))
(when stdin (org-babel-sh-var-to-string
(org-babel-ref-resolve stdin)))))
(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) (or (listp (car var)) (equal (car var) 'hline)))
(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."
(let ((results
(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 (equal "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)))))))
(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)))))))
(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
|
