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;;; jao-shell.el --- shell utils -*- lexical-binding: t; -*-
;; Copyright (C) 2022 jao
;; Author: jao <mail@jao.io>
;; Keywords: shell
;; This program 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.
;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; shell helpers
;;; Code:
(defun jao-shell-cmd-lines (cmd &rest args)
(let ((cmd (concat cmd " " (combine-and-quote-strings args))))
(split-string (shell-command-to-string cmd) "\n" t)))
(defun jao-shell-string (cmd &rest args)
(string-trim (or (car (apply #'jao-shell-cmd-lines cmd args)) "")))
(defun jao-shell-exec (command &optional wait)
(interactive
(list (read-shell-command "$ "
(if current-prefix-arg
(cons (concat " " (buffer-file-name)) 0)
""))))
(if wait
(call-process-shell-command command)
(start-process-shell-command command nil command)))
(defun jao-shell-exec* (command-or-wait &rest args)
(let ((wait (and (not (stringp command-or-wait)) command-or-wait))
(args (if (stringp command-or-wait) (cons command-or-wait args) args)))
(jao-shell-exec (combine-and-quote-strings args) wait)))
(defun jao-shell-exec-p (command) (eq 0 (jao-shell-exec command t)))
(defmacro jao-shell-def-exec (name &rest args)
`(defun ,name (&rest other-args)
(interactive)
(start-process-shell-command
,(car args)
"*jao-exec - console*"
(string-join (append (list ,@args) other-args) " "))))
(defun jao-shell-output (cmd handler)
(with-temp-buffer
(call-process-shell-command cmd nil (current-buffer))
(beginning-of-buffer)
(funcall handler)))
(defun jao-shell-running-p (pr) (eq 0 (jao-shell-exec* t "pidof" pr)))
(defun jao-shell-kill-p (pr) (eq 0 (jao-shell-exec* t "killall" pr)))
(provide 'jao-shell)
;;; jao-shell.el ends here
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