From 60d73d1ec7347f9b409965c2721d2e75adfb9889 Mon Sep 17 00:00:00 2001
From: Yuchen Pei <id@ypei.org>
Date: Tue, 2 Apr 2024 15:46:04 +1100
Subject: [emacs] add renaming to dired

rename files by mtime

also a new command to use ytdl without tor
---
 emacs/.emacs.d/lisp/my/my-dired.el | 38 ++++++++++++++++++++++++++++++++++++++
 emacs/.emacs.d/lisp/my/my-ytdl.el  | 14 ++++++++++----
 2 files changed, 48 insertions(+), 4 deletions(-)

(limited to 'emacs')

diff --git a/emacs/.emacs.d/lisp/my/my-dired.el b/emacs/.emacs.d/lisp/my/my-dired.el
index c90b8c4..ee6f7b0 100644
--- a/emacs/.emacs.d/lisp/my/my-dired.el
+++ b/emacs/.emacs.d/lisp/my/my-dired.el
@@ -151,5 +151,43 @@ With a prefix-arg, call it without using `vc-rename-file'."
       (advice-add 'dired-next-line :after #'my-dired-display-file)
     (advice-remove 'dired-next-line #'my-dired-display-file)))
 
+(defun my-dired-rename-by-mtime-at-point ()
+  "Generates new file name based on mtime.
+
+Format: yyyymmdd_hhmmss.ext"
+  (interactive)
+  (my-dired-rename-by-mtime (expand-file-name (dired-file-name-at-point))))
+
+(defun my-dired-rename-by-mtime (file-name)
+  "Generates new file name based on mtime.
+
+Format: yyyymmdd_hhmmss[_N].ext"
+  (let* ((ext (file-name-extension file-name))
+         (dir (file-name-directory file-name))
+         (new-file-name-base
+          (file-name-concat
+           dir
+           (concat
+            (format-time-string
+             "%Y%m%d_%H%M%S"
+             (file-attribute-modification-time (file-attributes file-name))))))
+         (new-file-name
+          (format "%s.%s" new-file-name-base ext))
+         (counter 0))
+    (unless (equal file-name new-file-name)
+      (while (file-exists-p new-file-name)
+        (setq counter (1+ counter)
+              new-file-name (format "%s_%d" new-file-name-base counter)))
+      (dired-rename-file file-name new-file-name nil))))
+
+(defun my-dired-do-rename-by-mtime ()
+  "Generates new file name based on mtime.
+
+Format: yyyymmdd_hhmmss.ext"
+  (interactive)
+  (seq-do
+   'my-dired-rename-by-mtime
+   (dired-map-over-marks (dired-get-filename) nil)))
+
 (provide 'my-dired)
 ;;; my-dired.el ends here
diff --git a/emacs/.emacs.d/lisp/my/my-ytdl.el b/emacs/.emacs.d/lisp/my/my-ytdl.el
index e902722..721b299 100644
--- a/emacs/.emacs.d/lisp/my/my-ytdl.el
+++ b/emacs/.emacs.d/lisp/my/my-ytdl.el
@@ -65,13 +65,13 @@
 (defvar my-ytdl-audio-download-dir "~/Downloads"
   "Directory for ytdl to download audios to.")
 
-(defun my-ytdl-internal (urls type &optional cut-segments)
+(defun my-ytdl-internal (urls type &optional no-tor)
   (my-with-default-directory (if (eq type 'video)
-                              my-ytdl-video-download-dir
-                            my-ytdl-audio-download-dir)
+                                 my-ytdl-video-download-dir
+                               my-ytdl-audio-download-dir)
     (apply 'my-start-process-with-torsocks
            (append
-            (list nil (format "ytdl-%s" urls) (format "*ytdl-%s*" urls)
+            (list no-tor (format "ytdl-%s" urls) (format "*ytdl-%s*" urls)
                   my-ytdl-program)
             (if (eq type 'video) my-ytdl-video-args my-ytdl-audio-args)
             (split-string urls)))))
@@ -87,5 +87,11 @@
   (interactive "sURL(s): ")
   (my-ytdl-internal urls 'audio))
 
+;;; fixme: autoload
+(defun my-ytdl-video-no-tor (urls)
+  "Download videos with ytdl."
+  (interactive "sURL(s): ")
+  (my-ytdl-internal urls 'video t))
+
 (provide 'my-ytdl)
 ;;; my-ytdl.el ends here
-- 
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