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
| | ;;; em-script.el --- Eshell script files -*- lexical-binding:t -*-
;; Copyright (C) 1999-2024 Free Software Foundation, Inc.
;; Author: John Wiegley <johnw@gnu.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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'esh-mode)
(require 'esh-io)
;;;###esh-module-autoload
(progn
(defgroup eshell-script nil
"This module allows for the execution of files containing Eshell
commands, as a script file."
:tag "Running script files."
:group 'eshell-module))
;;; User Variables:
(defcustom eshell-script-load-hook nil
"A list of functions to call when loading `eshell-script'."
:version "24.1" ; removed eshell-script-initialize
:type 'hook
:group 'eshell-script)
(defcustom eshell-login-script (expand-file-name "login" eshell-directory-name)
"If non-nil, a file to invoke when starting up Eshell interactively.
This file should be a file containing Eshell commands, where comment
lines begin with `#'."
:type 'file
:group 'eshell-script)
(defcustom eshell-rc-script (expand-file-name "profile" eshell-directory-name)
"If non-nil, a file to invoke whenever Eshell is started.
This includes when running `eshell-command'."
:type 'file
:group 'eshell-script)
;;; Functions:
(defun eshell-script-initialize () ;Called from `eshell-mode' via intern-soft!
"Initialize the script parsing code."
(setq-local eshell-interpreter-alist
(cons (cons (lambda (file _args)
(and (file-regular-p file)
(string= (file-name-nondirectory file)
"eshell")))
'eshell/source)
eshell-interpreter-alist))
(setq-local eshell-complex-commands
(append '("source" ".") eshell-complex-commands))
;; these two variables are changed through usage, but we don't want
;; to ruin it for other modules
(let (eshell-inside-quote-regexp
eshell-outside-quote-regexp)
(and (not (bound-and-true-p eshell-non-interactive-p))
eshell-login-script
(file-readable-p eshell-login-script)
(eshell-do-eval
`(eshell-commands ,(eshell--source-file eshell-login-script))
t))
(and eshell-rc-script
(file-readable-p eshell-rc-script)
(eshell-do-eval
`(eshell-commands ,(eshell--source-file eshell-rc-script))
t))))
(defun eshell--source-file (file &optional args subcommand-p)
"Return a Lisp form for executing the Eshell commands in FILE, passing ARGS.
If SUBCOMMAND-P is non-nil, execute this as a subcommand."
(let ((cmd (eshell-parse-command `(:file . ,file))))
(when subcommand-p
(setq cmd `(eshell-as-subcommand ,cmd)))
`(let ((eshell-command-name ',file)
(eshell-command-arguments ',args)
;; Don't print subjob messages by default. Otherwise, if
;; this function was called as a subjob, then *all* commands
;; in the script would print start/stop messages.
(eshell-subjob-messages nil))
,cmd)))
(defun eshell-source-file (file &optional args subcommand-p)
"Execute a series of Eshell commands in FILE, passing ARGS.
Comments begin with `#'."
(declare (obsolete nil "30.1"))
(throw 'eshell-replace-command
(eshell--source-file file args subcommand-p)))
;;;###autoload
(defun eshell-execute-file (file &optional args destination)
"Execute a series of Eshell commands in FILE, passing ARGS.
If DESTINATION is t, write the command output to the current buffer. If
nil, don't write the output anywhere. For any other value, output to
the corresponding Eshell target (see `eshell-get-target').
Comments begin with `#'."
(let ((eshell-non-interactive-p t)
(stdout (if (eq destination t) (current-buffer) destination)))
(with-temp-buffer
(eshell-mode)
(eshell-do-eval
`(let ((eshell-current-handles
(eshell-create-handles ,stdout 'insert))
(eshell-current-subjob-p))
,(eshell--source-file file args))
t))))
(cl-defstruct (eshell-princ-target
(:include eshell-generic-target)
(:constructor nil)
(:constructor eshell-princ-target-create
(&optional printcharfun)))
"A virtual target calling `princ' (see `eshell-virtual-targets')."
printcharfun)
(cl-defmethod eshell-output-object-to-target (object
(target eshell-princ-target))
"Output OBJECT to the `princ' function TARGET."
(princ object (eshell-princ-target-printcharfun target)))
(cl-defmethod eshell-target-line-oriented-p ((_target eshell-princ-target))
"Return non-nil to indicate that the display is line-oriented."
t)
(cl-defmethod eshell-close-target ((_target eshell-princ-target) _status)
"Close the `princ' function TARGET."
nil)
;;;###autoload
(defun eshell-batch-file ()
"Execute an Eshell script as a batch script from the command line.
Inside your Eshell script file, you can add the following at the
top in order to make it into an executable script:
#!/usr/bin/env -S emacs --batch -f eshell-batch-file"
(let ((file (pop command-line-args-left))
(args command-line-args-left)
(eshell-non-interactive-p t)
(eshell-module-loading-messages nil)
(eshell-virtual-targets
(append `(("/dev/stdout" ,(eshell-princ-target-create) nil)
("/dev/stderr" ,(eshell-princ-target-create
#'external-debugging-output)
nil))
eshell-virtual-targets)))
(setq command-line-args-left nil)
(with-temp-buffer
(eshell-mode)
(eshell-do-eval
`(let ((eshell-current-handles
(eshell-create-handles "/dev/stdout" 'append
"/dev/stderr" 'append))
(eshell-current-subjob-p))
,(eshell--source-file file args))
t))))
(defun eshell/source (file &rest args)
"Source a FILE in a subshell environment."
(throw 'eshell-replace-command
(eshell--source-file file args t)))
(put 'eshell/source 'eshell-no-numeric-conversions t)
(defun eshell/. (file &rest args)
"Source a FILE in the current environment."
(throw 'eshell-replace-command
(eshell--source-file file args)))
(put 'eshell/. 'eshell-no-numeric-conversions t)
(provide 'em-script)
;;; em-script.el ends here
|