2016-04-21 21:27:19 +00:00
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;;; helm-sys.el --- System related functions for helm. -*- lexical-binding: t -*-
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;; Copyright (C) 2012 ~ 2016 Thierry Volpiatto <thierry.volpiatto@gmail.com>
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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 of the License, or
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;; (at your option) any later version.
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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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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(require 'cl-lib)
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(require 'helm)
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(require 'helm-help)
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(require 'helm-utils)
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(defgroup helm-sys nil
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"System related helm library."
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:group 'helm)
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(defface helm-top-columns
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'((t :inherit helm-header))
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"Face for helm help string in minibuffer."
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:group 'helm-sys)
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2016-06-29 07:21:54 +00:00
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(defcustom helm-top-command
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(cl-case system-type
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(darwin "env COLUMNS=%s ps -axo pid,user,pri,nice,ucomm,tty,start,vsz,%%cpu,%%mem,etime,command")
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(t "env COLUMNS=%s top -b -n 1"))
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2016-04-21 21:27:19 +00:00
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"Top command used to display output of top.
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To use top command, a version supporting batch mode (-b option) is needed.
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On Mac OSX top command doesn't support this, so ps command
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is used by default instead.
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If you modify this the number and order of elements displayed
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should be the same as top command to have the sort commands
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working properly, that is 12 elements with the 2 first being
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PID and USER and the last 4 being %CPU, %MEM, TIME and COMMAND.
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A format string where %s will be replaced with `frame-width'."
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:group 'helm-sys
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2016-06-29 07:21:54 +00:00
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:type 'string)
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(defcustom helm-top-poll-delay 1.5
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"Helm top poll after this dealy when `helm-top-poll-mode' is enabled.
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The minimal delay allowed is 1.5, if less than this helm-top will use 1.5."
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:group 'helm-sys
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:type 'float)
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(defcustom helm-top-poll-delay-post-command 1.0
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"Helm top stop polling during this delay.
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This delay is additioned to `helm-top-poll-delay' after emacs stop
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being idle."
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:group 'helm-sys
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:type 'float)
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2016-04-21 21:27:19 +00:00
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2016-06-29 07:21:54 +00:00
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(defcustom helm-top-poll-preselection 'linum
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"Stay on same line or follow candidate when `helm-top-poll' update display.
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Possible values are 'candidate or 'linum."
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:group'helm-sys
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:type '(radio :tag "Preferred preselection action for helm-top"
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(const :tag "Follow candidate" candidate)
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(const :tag "Stay on same line" linum)))
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2016-04-21 21:27:19 +00:00
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;;; Top (process)
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;;
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;;
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(defvar helm-top-sort-fn nil)
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(defvar helm-top-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map helm-map)
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(define-key map (kbd "M-P") 'helm-top-run-sort-by-cpu)
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(define-key map (kbd "M-C") 'helm-top-run-sort-by-com)
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(define-key map (kbd "M-M") 'helm-top-run-sort-by-mem)
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(define-key map (kbd "M-U") 'helm-top-run-sort-by-user)
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map))
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2016-06-29 07:21:54 +00:00
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(defvar helm-top-after-init-hook nil
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"Local hook for helm-top.")
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(defvar helm-top--poll-timer nil)
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(defun helm-top-poll (&optional no-update delay)
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(when helm-top--poll-timer
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(cancel-timer helm-top--poll-timer))
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(condition-case nil
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(progn
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(when (and (helm-alive-p) (null no-update))
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;; Fix quitting while process is running
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;; by binding `with-local-quit' in init function
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;; Issue #1521.
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(helm-force-update
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(cl-ecase helm-top-poll-preselection
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(candidate (replace-regexp-in-string
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"[0-9]+" "[0-9]+"
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(regexp-quote (helm-get-selection nil t))))
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(linum `(lambda ()
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(goto-char (point-min))
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(forward-line ,(helm-candidate-number-at-point)))))))
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(setq helm-top--poll-timer
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(run-with-idle-timer
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(helm-aif (current-idle-time)
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(time-add it (seconds-to-time
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(or delay (helm-top--poll-delay))))
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(or delay (helm-top--poll-delay)))
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nil
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'helm-top-poll)))
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(quit (cancel-timer helm-top--poll-timer))))
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(defun helm-top--poll-delay ()
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(max 1.5 helm-top-poll-delay))
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(defun helm-top-poll-no-update ()
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(helm-top-poll t (+ (helm-top--poll-delay)
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helm-top-poll-delay-post-command)))
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(defun helm-top-initialize-poll-hooks ()
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;; When emacs is idle during say 20s
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;; the idle timer will run in 20+1.5 s.
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;; This is fine when emacs stays idle, because the next timer
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;; will run at 21.5+1.5 etc... so the display will be updated
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;; at every 1.5 seconds.
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;; But as soon as emacs looses its idleness, the next update
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;; will occur at say 21+1.5 s, so we have to reinitialize
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;; the timer at 0+1.5.
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(add-hook 'post-command-hook 'helm-top-poll-no-update)
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(add-hook 'focus-in-hook 'helm-top-poll-no-update))
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;;;###autoload
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(define-minor-mode helm-top-poll-mode
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"Refresh automatically helm top buffer once enabled."
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:group 'helm-top
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:global t
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(if helm-top-poll-mode
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(progn
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(add-hook 'helm-top-after-init-hook 'helm-top-poll-no-update)
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(add-hook 'helm-top-after-init-hook 'helm-top-initialize-poll-hooks))
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(remove-hook 'helm-top-after-init-hook 'helm-top-poll-no-update)
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(remove-hook 'helm-top-after-init-hook 'helm-top-initialize-poll-hooks)))
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2016-04-21 21:27:19 +00:00
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(defvar helm-source-top
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(helm-build-in-buffer-source "Top"
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:header-name (lambda (name)
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(concat name (if helm-top-poll-mode
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" (auto updating)"
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" (Press C-c C-u to refresh)")))
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2016-04-21 21:27:19 +00:00
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:init #'helm-top-init
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:after-init-hook 'helm-top-after-init-hook
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:cleanup (lambda ()
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(when helm-top--poll-timer
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(cancel-timer helm-top--poll-timer))
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(remove-hook 'post-command-hook 'helm-top-poll-no-update)
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(remove-hook 'focus-in-hook 'helm-top-poll-no-update))
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2016-04-21 21:27:19 +00:00
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:nomark t
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:display-to-real #'helm-top-display-to-real
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:persistent-action #'helm-top-sh-persistent-action
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:persistent-help "SIGTERM"
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:help-message 'helm-top-help-message
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:follow 'never
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:keymap helm-top-map
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:filtered-candidate-transformer #'helm-top-sort-transformer
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:action-transformer #'helm-top-action-transformer))
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(defvar helm-top--line nil)
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(defun helm-top-transformer (candidates _source)
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"Transformer for `helm-top'.
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Return empty string for non--valid candidates."
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(cl-loop for disp in candidates collect
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(cond ((string-match "^ *[0-9]+" disp) disp)
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((string-match "^ *PID" disp)
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(setq helm-top--line (cons (propertize disp 'face 'helm-top-columns) "")))
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(t (cons disp "")))
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into lst
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finally return (or (member helm-top--line lst)
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(cons helm-top--line lst))))
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(defun helm-top--skip-top-line ()
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(let ((src-name (assoc-default 'name (helm-get-current-source))))
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(helm-aif (and (stringp src-name)
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(string= src-name "Top")
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(helm-get-selection nil t))
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(when (string-match-p "^ *PID" it)
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(helm-next-line)))))
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(defun helm-top-action-transformer (actions _candidate)
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"Action transformer for `top'.
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Show actions only on line starting by a PID."
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(let ((disp (helm-get-selection nil t)))
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(cond ((string-match "^ *[0-9]+" disp)
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(list '("kill (SIGTERM)" . (lambda (pid) (helm-top-sh "TERM" pid)))
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'("kill (SIGKILL)" . (lambda (pid) (helm-top-sh "KILL" pid)))
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'("kill (SIGINT)" . (lambda (pid) (helm-top-sh "INT" pid)))
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'("kill (Choose signal)"
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. (lambda (pid)
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(helm-top-sh
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(helm-comp-read (format "Kill [%s] with signal: " pid)
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'("ALRM" "HUP" "INT" "KILL" "PIPE" "POLL"
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"PROF" "TERM" "USR1" "USR2" "VTALRM"
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"STKFLT" "PWR" "WINCH" "CHLD" "URG"
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"TSTP" "TTIN" "TTOU" "STOP" "CONT"
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"ABRT" "FPE" "ILL" "QUIT" "SEGV"
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"TRAP" "SYS" "EMT" "BUS" "XCPU" "XFSZ")
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:must-match t)
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pid)))))
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(t actions))))
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(defun helm-top-sh (sig pid)
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"Run kill shell command with signal SIG on PID for `helm-top'."
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(let ((cmd (format "kill -%s %s" sig pid)))
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(message "Executed %s\n%s" cmd (shell-command-to-string cmd))))
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(defun helm-top-sh-persistent-action (pid)
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(delete-other-windows)
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(helm-top-sh "TERM" pid)
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(helm-force-update))
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(defun helm-top-init ()
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"Insert output of top command in candidate buffer."
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(with-local-quit
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(unless helm-top-sort-fn (helm-top-set-mode-line "CPU"))
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(with-current-buffer (helm-candidate-buffer 'global)
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(call-process-shell-command
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(format helm-top-command (frame-width))
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nil (current-buffer)))))
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2016-04-21 21:27:19 +00:00
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(defun helm-top-display-to-real (line)
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"Return pid only from LINE."
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(car (split-string line)))
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;; Sort top command
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(defun helm-top-set-mode-line (str)
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(if (string-match "Sort:\\[\\(.*\\)\\] " helm-top-mode-line)
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(setq helm-top-mode-line (replace-match str nil nil helm-top-mode-line 1))
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(setq helm-top-mode-line (concat (format "Sort:[%s] " str) helm-top-mode-line))))
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(defun helm-top-sort-transformer (candidates source)
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(helm-top-transformer
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(if helm-top-sort-fn
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(cl-loop for c in candidates
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if (string-match "^ *[0-9]+" c)
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collect c into pid-cands
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else collect c into header-cands
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finally return (append
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header-cands
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(sort pid-cands helm-top-sort-fn)))
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candidates)
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source))
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(defun helm-top-sort-by-com (s1 s2)
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(let* ((split-1 (split-string s1))
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(split-2 (split-string s2))
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(com-1 (nth 11 split-1))
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(com-2 (nth 11 split-2)))
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(string< com-1 com-2)))
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(defun helm-top-sort-by-mem (s1 s2)
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(let* ((split-1 (split-string s1))
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(split-2 (split-string s2))
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(mem-1 (string-to-number (nth 9 split-1)))
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(mem-2 (string-to-number (nth 9 split-2))))
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(> mem-1 mem-2)))
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(defun helm-top-sort-by-user (s1 s2)
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(let* ((split-1 (split-string s1))
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(split-2 (split-string s2))
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(user-1 (nth 1 split-1))
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(user-2 (nth 1 split-2)))
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(string< user-1 user-2)))
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(defun helm-top-run-sort-by-com ()
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(interactive)
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(helm-top-set-mode-line "COM")
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(setq helm-top-sort-fn 'helm-top-sort-by-com)
|
2016-06-29 07:21:54 +00:00
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(helm-update (replace-regexp-in-string
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"[0-9]+" "[0-9]+"
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(regexp-quote (helm-get-selection nil t)))))
|
2016-04-21 21:27:19 +00:00
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(defun helm-top-run-sort-by-cpu ()
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(interactive)
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(helm-top-set-mode-line "CPU")
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(setq helm-top-sort-fn nil)
|
2016-06-29 07:21:54 +00:00
|
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|
(helm-update (replace-regexp-in-string
|
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|
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"[0-9]+" "[0-9]+"
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|
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(regexp-quote (helm-get-selection nil t)))))
|
2016-04-21 21:27:19 +00:00
|
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|
(defun helm-top-run-sort-by-mem ()
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|
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|
(interactive)
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|
|
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|
(helm-top-set-mode-line "MEM")
|
|
|
|
|
|
(setq helm-top-sort-fn 'helm-top-sort-by-mem)
|
2016-06-29 07:21:54 +00:00
|
|
|
|
(helm-update (replace-regexp-in-string
|
|
|
|
|
|
"[0-9]+" "[0-9]+"
|
|
|
|
|
|
(regexp-quote (helm-get-selection nil t)))))
|
2016-04-21 21:27:19 +00:00
|
|
|
|
|
|
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|
|
|
(defun helm-top-run-sort-by-user ()
|
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|
|
|
|
(interactive)
|
|
|
|
|
|
(helm-top-set-mode-line "USER")
|
|
|
|
|
|
(setq helm-top-sort-fn 'helm-top-sort-by-user)
|
2016-06-29 07:21:54 +00:00
|
|
|
|
(helm-update (replace-regexp-in-string
|
|
|
|
|
|
"[0-9]+" "[0-9]+"
|
|
|
|
|
|
(regexp-quote (helm-get-selection nil t)))))
|
2016-04-21 21:27:19 +00:00
|
|
|
|
|
|
|
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|
|
;;; X RandR resolution change
|
|
|
|
|
|
;;
|
|
|
|
|
|
;;
|
|
|
|
|
|
;;; FIXME I do not care multi-display.
|
|
|
|
|
|
|
|
|
|
|
|
(defun helm-xrandr-info ()
|
|
|
|
|
|
"Return a pair with current X screen number and current X display name."
|
|
|
|
|
|
(with-temp-buffer
|
|
|
|
|
|
(call-process "xrandr" nil (current-buffer) nil
|
|
|
|
|
|
"--current")
|
|
|
|
|
|
(let (screen output)
|
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
|
|
(save-excursion
|
|
|
|
|
|
(when (re-search-forward "\\(^Screen \\)\\([0-9]\\):" nil t)
|
|
|
|
|
|
(setq screen (match-string 2))))
|
|
|
|
|
|
(when (re-search-forward "^\\(.*\\) connected" nil t)
|
|
|
|
|
|
(setq output (match-string 1)))
|
|
|
|
|
|
(list screen output))))
|
|
|
|
|
|
|
|
|
|
|
|
(defun helm-xrandr-screen ()
|
|
|
|
|
|
"Return current X screen number."
|
|
|
|
|
|
(car (helm-xrandr-info)))
|
|
|
|
|
|
|
|
|
|
|
|
(defun helm-xrandr-output ()
|
|
|
|
|
|
"Return current X display name."
|
|
|
|
|
|
(cadr (helm-xrandr-info)))
|
|
|
|
|
|
|
|
|
|
|
|
(defvar helm-source-xrandr-change-resolution
|
|
|
|
|
|
'((name . "Change Resolution")
|
|
|
|
|
|
(candidates
|
|
|
|
|
|
. (lambda ()
|
|
|
|
|
|
(with-temp-buffer
|
|
|
|
|
|
(call-process "xrandr" nil (current-buffer) nil
|
|
|
|
|
|
"--screen" (helm-xrandr-screen) "-q")
|
|
|
|
|
|
(goto-char 1)
|
|
|
|
|
|
(cl-loop with modes = nil
|
|
|
|
|
|
while (re-search-forward " \\([0-9]+x[0-9]+\\)" nil t)
|
|
|
|
|
|
for mode = (match-string 1)
|
|
|
|
|
|
unless (member mode modes)
|
|
|
|
|
|
collect mode into modes
|
|
|
|
|
|
finally return modes))))
|
|
|
|
|
|
(action
|
|
|
|
|
|
("Change Resolution"
|
|
|
|
|
|
. (lambda (mode)
|
|
|
|
|
|
(call-process "xrandr" nil nil nil
|
|
|
|
|
|
"--screen" (helm-xrandr-screen)
|
|
|
|
|
|
"--output" (helm-xrandr-output)
|
|
|
|
|
|
"--mode" mode))))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;;; Emacs process
|
|
|
|
|
|
;;
|
|
|
|
|
|
;;
|
|
|
|
|
|
(defvar helm-source-emacs-process
|
|
|
|
|
|
'((name . "Emacs Process")
|
|
|
|
|
|
(init . (lambda () (list-processes--refresh)))
|
|
|
|
|
|
(candidates . (lambda () (mapcar #'process-name (process-list))))
|
|
|
|
|
|
(persistent-action . (lambda (elm)
|
|
|
|
|
|
(delete-process (get-process elm))
|
|
|
|
|
|
(helm-delete-current-selection)))
|
|
|
|
|
|
(persistent-help . "Kill Process")
|
|
|
|
|
|
(action ("Kill Process" . (lambda (elm)
|
|
|
|
|
|
(delete-process (get-process elm)))))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
|
(defun helm-top ()
|
|
|
|
|
|
"Preconfigured `helm' for top command."
|
|
|
|
|
|
(interactive)
|
|
|
|
|
|
(add-hook 'helm-after-update-hook 'helm-top--skip-top-line)
|
|
|
|
|
|
(save-window-excursion
|
|
|
|
|
|
(unless helm-alive-p (delete-other-windows))
|
|
|
|
|
|
(unwind-protect
|
|
|
|
|
|
(helm :sources 'helm-source-top
|
|
|
|
|
|
:buffer "*helm top*" :full-frame t
|
|
|
|
|
|
:candidate-number-limit 9999
|
|
|
|
|
|
:preselect "^\\s-*[0-9]+")
|
|
|
|
|
|
(remove-hook 'helm-after-update-hook 'helm-top--skip-top-line))))
|
|
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
|
(defun helm-list-emacs-process ()
|
|
|
|
|
|
"Preconfigured `helm' for emacs process."
|
|
|
|
|
|
(interactive)
|
|
|
|
|
|
(helm-other-buffer 'helm-source-emacs-process "*helm process*"))
|
|
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
|
(defun helm-xrandr-set ()
|
|
|
|
|
|
"Preconfigured helm for xrandr."
|
|
|
|
|
|
(interactive)
|
|
|
|
|
|
(helm :sources 'helm-source-xrandr-change-resolution
|
|
|
|
|
|
:buffer "*helm xrandr*"))
|
|
|
|
|
|
|
|
|
|
|
|
(provide 'helm-sys)
|
|
|
|
|
|
|
|
|
|
|
|
;; Local Variables:
|
|
|
|
|
|
;; byte-compile-warnings: (not cl-functions obsolete)
|
|
|
|
|
|
;; coding: utf-8
|
|
|
|
|
|
;; indent-tabs-mode: nil
|
|
|
|
|
|
;; End:
|
|
|
|
|
|
|
|
|
|
|
|
;;; helm-sys.el ends here
|
