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208 regels
7.4 KiB
208 regels
7.4 KiB
;;; cider-profile.el --- CIDER support for profiling -*- lexical-binding: t; -*-
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;; Copyright © 2014-2019 Edwin Watkeys and CIDER contributors
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;; Author: Edwin Watkeys <edw@poseur.com>
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;; Juan E. Maya <jmayaalv@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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;;; Commentary:
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;; Provides coarse-grained interactive profiling support.
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;; Based on earlier work by Edwin Watkeys (https://github.com/thunknyc/nrepl-profile).
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;;; Code:
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(require 'cider-client)
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(require 'cider-popup)
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(require 'cider-eval)
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(defconst cider-profile-buffer "*cider-profile*")
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(defvar cider-profile-map
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(let ((map (define-prefix-command 'cider-profile-map)))
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(define-key map (kbd "t") #'cider-profile-toggle)
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(define-key map (kbd "c") #'cider-profile-clear)
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(define-key map (kbd "S") #'cider-profile-summary)
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(define-key map (kbd "s") #'cider-profile-var-summary)
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(define-key map (kbd "n") #'cider-profile-ns-toggle)
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(define-key map (kbd "v") #'cider-profile-var-profiled-p)
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(define-key map (kbd "+") #'cider-profile-samples)
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map)
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"CIDER profiler keymap.")
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(defconst cider-profile-menu
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'("Profile"
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["Toggle var profiling" cider-profile-toggle]
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["Toggle namespace profiling" cider-profile-ns-toggle]
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"--"
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["Display var profiling status" cider-profile-var-profiled-p]
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["Display max sample count" cider-profile-samples]
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["Display summary" cider-profile-summary]
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["Clear data" cider-profile-clear])
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"CIDER profiling submenu.")
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(defun cider-profile--make-response-handler (handler &optional buffer)
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"Make a response handler using value handler HANDLER for connection BUFFER.
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Optional argument BUFFER defaults to current buffer."
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(nrepl-make-response-handler
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(or buffer (current-buffer)) handler nil nil nil))
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;;;###autoload
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(defun cider-profile-samples (&optional query)
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"Displays current max-sample-count.
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If optional QUERY is specified, set max-sample-count and display new value."
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(interactive "P")
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(cider-ensure-op-supported "set-max-samples")
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(cider-ensure-op-supported "get-max-samples")
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(if (not (null query))
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(cider-nrepl-send-request
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(let ((max-samples (if (numberp query) query '())))
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(message "query: %s" max-samples)
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`("op" "set-max-samples" "max-samples" ,max-samples))
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(cider-profile--make-response-handler
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(lambda (_buffer value)
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(let ((value (if (zerop (length value)) "unlimited" value)))
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(message "max-sample-count is now %s" value)))))
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(cider-nrepl-send-request
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'("op" "get-max-samples")
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(cider-profile--make-response-handler
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(lambda (_buffer value)
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(let ((value (if (zerop (length value)) "unlimited" value)))
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(message "max-sample-count is now %s" value))))))
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query)
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;;;###autoload
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(defun cider-profile-var-profiled-p (query)
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"Displays the profiling status of var under point.
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Prompts for var if none under point or QUERY is present."
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(interactive "P")
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(cider-ensure-op-supported "is-var-profiled")
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(cider-read-symbol-name
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"Report profiling status for var: "
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(lambda (sym)
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(let ((ns (cider-current-ns)))
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(cider-nrepl-send-request
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`("op" "is-var-profiled"
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"ns" ,ns
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"sym" ,sym)
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(cider-profile--make-response-handler
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(lambda (_buffer value)
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(pcase value
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("profiled" (message "Profiling is currently enabled for %s/%s" ns sym))
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("unprofiled" (message "Profiling is currently disabled for %s/%s" ns sym))
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("unbound" (message "%s/%s is unbound" ns sym)))))))))
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query)
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;;;###autoload
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(defun cider-profile-ns-toggle (&optional query)
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"Toggle profiling for the ns associated with optional QUERY.
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If optional argument QUERY is non-nil, prompt for ns. Otherwise use
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current ns."
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(interactive "P")
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(cider-ensure-op-supported "toggle-profile-ns")
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(let ((ns (if query
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(completing-read "Toggle profiling for ns: "
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(cider-sync-request:ns-list))
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(cider-current-ns))))
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(cider-nrepl-send-request
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`("op" "toggle-profile-ns"
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"ns" ,ns)
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(cider-profile--make-response-handler
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(lambda (_buffer value)
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(pcase value
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("profiled" (message "Profiling enabled for %s" ns))
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("unprofiled" (message "Profiling disabled for %s" ns)))))))
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query)
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;;;###autoload
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(defun cider-profile-toggle (query)
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"Toggle profiling for the given QUERY.
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Defaults to the symbol at point.
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With prefix arg or no symbol at point, prompts for a var."
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(interactive "P")
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(cider-ensure-op-supported "toggle-profile")
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(cider-read-symbol-name
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"Toggle profiling for var: "
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(lambda (sym)
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(let ((ns (cider-current-ns)))
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(cider-nrepl-send-request
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`("op" "toggle-profile"
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"ns" ,ns
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"sym" ,sym)
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(cider-profile--make-response-handler
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(lambda (_buffer value)
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(pcase value
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("profiled" (message "Profiling enabled for %s/%s" ns sym))
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("unprofiled" (message "Profiling disabled for %s/%s" ns sym))
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("unbound" (message "%s/%s is unbound" ns sym)))))))))
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query)
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(defun cider-profile-display-stats (stats-response)
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"Displays the STATS-RESPONSE on `cider-profile-buffer`."
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(let ((table (nrepl-dict-get stats-response "err")))
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(if cider-profile-buffer
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(let ((buffer (cider-make-popup-buffer cider-profile-buffer)))
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(with-current-buffer buffer
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(let ((inhibit-read-only t)) (insert table)))
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(display-buffer buffer)
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(let ((window (get-buffer-window buffer)))
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(set-window-point window 0)
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(select-window window)
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(fit-window-to-buffer window)))
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(cider-emit-interactive-eval-err-output table))))
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;;;###autoload
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(defun cider-profile-summary ()
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"Display a summary of currently collected profile data."
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(interactive)
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(cider-ensure-op-supported "profile-summary")
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(cider-profile-display-stats
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(cider-nrepl-send-sync-request '("op" "profile-summary"))))
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;;;###autoload
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(defun cider-profile-var-summary (query)
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"Display profile data for var under point QUERY.
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Defaults to the symbol at point. With prefix arg or no symbol at point,
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prompts for a var."
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(interactive "P")
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(cider-ensure-op-supported "profile-var-summary")
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(cider-read-symbol-name
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"Profile-summary for var: "
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(lambda (sym)
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(cider-profile-display-stats
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(cider-nrepl-send-sync-request
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`("op" "profile-var-summary"
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"ns" ,(cider-current-ns)
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"sym" ,sym)))))
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query)
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;;;###autoload
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(defun cider-profile-clear ()
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"Clear any collected profile data."
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(interactive)
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(cider-ensure-op-supported "clear-profile")
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(cider-nrepl-send-request
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'("op" "clear-profile")
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(cider-profile--make-response-handler
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(lambda (_buffer value)
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(when (equal value "cleared")
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(message "Cleared profile data"))))))
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(provide 'cider-profile)
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;;; cider-profile.el ends here
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