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[elpa] externals/exwm 2d36241 1/6: Add timestamps to `exwm-debug' logs

From: Chris Feng
Subject: [elpa] externals/exwm 2d36241 1/6: Add timestamps to `exwm-debug' logs
Date: Sun, 8 Sep 2019 09:07:08 -0400 (EDT)

branch: externals/exwm
commit 2d36241a10b4b705e1482322383f135bca7ac184
Author: Chris Feng <address@hidden>
Commit: Chris Feng <address@hidden>

    Add timestamps to `exwm-debug' logs
    * exwm-core.el (exwm-debug-log-time-function): New user option for
    choosing the style of timestamps in debug logs.
    (exwm-debug-log-uptime, exwm-debug-log-time): Possible candidates for
    (exwm--log): Use it.
 exwm-core.el | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/exwm-core.el b/exwm-core.el
index d3edb14..ed9a523 100644
--- a/exwm-core.el
+++ b/exwm-core.el
@@ -33,6 +33,27 @@
 (require 'xcb-ewmh)
 (require 'xcb-debug)
+(defcustom exwm-debug-log-time-function #'exwm-debug-log-uptime
+  "Function used for generating timestamps in `exwm-debug' logs.
+Here are some predefined candidates:
+`exwm-debug-log-uptime': Display the uptime of this Emacs instance.
+`exwm-debug-log-time': Display time of day.
+`nil': Disable timestamp."
+  :group 'exwm
+  :type `(choice (const :tag "Emacs uptime" ,#'exwm-debug-log-uptime)
+                 (const :tag "Time of day" ,#'exwm-debug-log-time)
+                 (const :tag "Off" nil)
+                 (function :tag "Other")))
+(defun exwm-debug-log-uptime ()
+  "Add uptime to `exwm-debug' logs."
+  (emacs-uptime "[%.2h:%.2m:%.2s] "))
+(defun exwm-debug-log-time ()
+  "Add time of day to `exwm-debug' logs."
+  (format-time-string "[%T] "))
 (defvar exwm--connection nil "X connection.")
 (defvar exwm--wmsn-window nil
@@ -79,7 +100,10 @@ FORMAT-STRING is a string specifying the message to output, 
as in
 `format'.  The OBJECTS arguments specify the substitutions."
   (unless format-string (setq format-string ""))
   `(when exwm-debug
-     (xcb-debug:message ,(concat "%s:\t" format-string "\n")
+     (xcb-debug:message ,(concat "%s%s:\t" format-string "\n")
+                        (if exwm-debug-log-time-function
+                            (funcall exwm-debug-log-time-function)
+                          "")

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