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111 Zeilen
4.4 KiB
111 Zeilen
4.4 KiB
;;; elpy-profile.el --- Profiling capabilitiss for elpy
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;; Copyright (C) 2013-2016 Jorgen Schaefer
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;; Author: Gaby Launay <gaby.launay@tutanota.com>
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;; URL: https://github.com/jorgenschaefer/elpy
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License
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;; as published by the Free Software Foundation; either version 3
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;; of the License, or (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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;;; Commentary:
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;; This file serves as an extension to elpy by adding profiling capabilities
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;;; Code:
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;;;;;;;;;;;;;;;;;;;;;;
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;;; User customization
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(defcustom elpy-profile-visualizer "snakeviz"
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"Visualizer for elpy profile results."
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:type 'str
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:group 'elpy)
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;;;;;;;;;;;;;;;;;;;;;;
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;;; Helper Functions
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(defun elpy-profile--display-profiling (file)
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"Display the profile result FILE using `elpy-profile-visualizer'."
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(let ((exec (car (split-string elpy-profile-visualizer " " t)))
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(args (append (cdr (split-string elpy-profile-visualizer " " t)) (list file))))
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(if (executable-find exec)
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(apply 'call-process exec nil 0 nil args)
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(message "Elpy profile visualizer '%s' not found" exec))))
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(defun elpy-profile--sentinel (process string)
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"Elpy profile sentinel."
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(let ((filename (file-name-nondirectory (process-get process 'file)))
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(prof-file (process-get process 'prof-file))
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(dont-display (process-get process 'dont-display)))
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(with-current-buffer "*elpy-profile-log*"
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(view-mode))
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(if (not (string-equal string "finished\n"))
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(progn
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(message "[%s] Profiling failed" filename)
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(display-buffer "*elpy-profile-log*"))
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(message "[%s] Profiling succeeded" filename)
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(when (not dont-display)
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(elpy-profile--display-profiling prof-file)))))
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(defun elpy-profile--file (file &optional in-dir dont-display)
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"Profile asynchronously FILE and display the result using
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`elpy-profile-visualizer'.
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If IN-DIR is non nil, profile result is saved in the same
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directory as the script.
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If DONT-DISPLAY is non nil, don't display the profile results."
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(ignore-errors (kill-buffer "*elpy-profile-log*"))
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(let* ((prof-file (if in-dir
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(concat (file-name-sans-extension file) ".profile")
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(concat (make-temp-file "elpy-profile-" nil ".profile"))))
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(proc-name (format "elpy-profile-%s" file))
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(proc-cmd (list elpy-rpc-python-command "-m" "cProfile" "-o" prof-file file))
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(proc (make-process :name proc-name
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:buffer "*elpy-profile-log*"
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:sentinel 'elpy-profile--sentinel
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:command proc-cmd)))
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(message "[%s] Profiling ..." (file-name-nondirectory file))
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(process-put proc 'prof-file prof-file)
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(process-put proc 'file file)
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(process-put proc 'dont-display dont-display)
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prof-file))
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;;;;;;;;;;;;;;;;;;;;;;
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;;; User Functions
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(defun elpy-profile-buffer-or-region (&optional in-dir dont-display)
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"Profile asynchronously the active region or the current buffer
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and display the result using `elpy-profile-visualizer'.
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If IN-DIR is non nil, profile result is saved in the same
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directory as the script.
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If DONT-DISPLAY is non nil, don't display the profile results."
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(interactive "P")
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(let* ((file-name (buffer-name))
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(file-dir (file-name-directory (buffer-file-name)))
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(beg (if (region-active-p) (region-beginning) (point-min)))
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(end (if (region-active-p) (region-end) (point-max)))
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(tmp-file-prefix (if (region-active-p) "_region_" ""))
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(tmp-file (if in-dir
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(concat file-dir "/" tmp-file-prefix file-name)
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(concat (make-temp-file "elpy-profile-" t) "/" tmp-file-prefix file-name)))
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(region (python-shell-buffer-substring beg end)))
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(with-temp-buffer
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(insert region)
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(write-region (point-min) (point-max) tmp-file nil t))
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(elpy-profile--file tmp-file t dont-display)))
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(provide 'elpy-profile)
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;;; elpy-profile.el ends here
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