Add new defgroup image-dired-external

* lisp/image/image-dired-external.el (image-dired-external): New
defgroup.
(image-dired-cmd-create-thumbnail-program)
(image-dired-cmd-create-thumbnail-options)
(image-dired-cmd-pngnq-program, image-dired-cmd-pngnq-options)
(image-dired-cmd-pngcrush-program)
(image-dired-cmd-pngcrush-options)
(image-dired-cmd-optipng-program)
(image-dired-cmd-optipng-options)
(image-dired-cmd-create-standard-thumbnail-options)
(image-dired-cmd-rotate-original-program)
(image-dired-cmd-rotate-original-options)
(image-dired-temp-rotate-image-file)
(image-dired-rotate-original-ask-before-overwrite)
(image-dired-cmd-write-exif-data-program)
(image-dired-cmd-write-exif-data-options): Use above new defgroup.

lisp/image/image-dired-external.el

@@ -38,13 +38,18 @@
 (defvar image-dired-thumb-width)
 (defvar image-dired-thumbnail-storage)
 
+(defgroup image-dired-external nil
+  "External process support for Image-Dired."
+  :prefix "image-dired-"
+  :link '(info-link "(emacs) Image-Dired")
+  :group 'image-dired)
+
 (defcustom image-dired-cmd-create-thumbnail-program
   (if (executable-find "gm") "gm" "convert")
   "Executable used to create thumbnail.
 Used together with `image-dired-cmd-create-thumbnail-options'."
   :type 'file
-  :version "29.1"
-  :group 'image-dired)
+  :version "29.1")
 
 (defcustom image-dired-cmd-create-thumbnail-options
   (let ((opts '("-size" "%wx%h" "%f[0]"
@@ -57,7 +62,6 @@ Available format specifiers are: %w which is replaced by
 `image-dired-thumb-width', %h which is replaced by `image-dired-thumb-height',
 %f which is replaced by the file name of the original image and %t
 which is replaced by the file name of the thumbnail file."
-  :group 'image-dired
   :version "29.1"
   :type '(repeat (string :tag "Argument")))
 
@@ -72,7 +76,6 @@ which is replaced by the file name of the thumbnail file."
   "The file name of the `pngquant' or `pngnq' program.
 It quantizes colors of PNG images down to 256 colors or fewer
 using the NeuQuant algorithm."
-  :group 'image-dired
   :version "29.1"
   :type '(choice (const :tag "Not Set" nil) file))
 
@@ -83,7 +86,6 @@ using the NeuQuant algorithm."
   "Arguments to pass `image-dired-cmd-pngnq-program'.
 Available format specifiers are the same as in
 `image-dired-cmd-create-thumbnail-options'."
-  :group 'image-dired
   :type '(repeat (string :tag "Argument"))
   :version "29.1")
 
@@ -91,7 +93,6 @@ Available format specifiers are the same as in
   "The file name of the `pngcrush' program.
 It optimizes the compression of PNG images.  Also it adds PNG textual chunks
 with the information required by the Thumbnail Managing Standard."
-  :group 'image-dired
   :type '(choice (const :tag "Not Set" nil) file))
 
 (defcustom image-dired-cmd-pngcrush-options
@@ -109,13 +110,11 @@ with the information required by the Thumbnail Managing Standard."
 Available format specifiers are the same as in
 `image-dired-cmd-create-thumbnail-options', with %q for a
 temporary file name (typically generated by pnqnq)."
-  :group 'image-dired
   :version "26.1"
   :type '(repeat (string :tag "Argument")))
 
 (defcustom image-dired-cmd-optipng-program (executable-find "optipng")
   "The file name of the `optipng' program."
-  :group 'image-dired
   :version "26.1"
   :type '(choice (const :tag "Not Set" nil) file))
 
@@ -123,7 +122,6 @@ temporary file name (typically generated by pnqnq)."
   "Arguments passed to `image-dired-cmd-optipng-program'.
 Available format specifiers are described in
 `image-dired-cmd-create-thumbnail-options'."
-  :group 'image-dired
   :version "26.1"
   :type '(repeat (string :tag "Argument"))
   :link '(url-link "man:optipng(1)"))
@@ -141,7 +139,6 @@ Available format specifiers are described in
   "Options for creating thumbnails according to the Thumbnail Managing Standard.
 Available format specifiers are the same as in
 `image-dired-cmd-create-thumbnail-options', with %m for file modification time."
-  :group 'image-dired
   :version "26.1"
   :type '(repeat (string :tag "Argument")))
 
@@ -149,7 +146,6 @@ Available format specifiers are the same as in
   "jpegtran"
   "Executable used to rotate original image.
 Used together with `image-dired-cmd-rotate-original-options'."
-  :group 'image-dired
   :type 'file)
 
 (defcustom image-dired-cmd-rotate-original-options
@@ -161,7 +157,6 @@ number of (positive) degrees to rotate the image, normally 90 or
 270 \(for 90 degrees right and left), %o which is replaced by the
 original image file name and %t which is replaced by
 `image-dired-temp-image-file'."
-  :group 'image-dired
   :version "26.1"
   :type '(repeat (string :tag "Argument")))
 
@@ -169,13 +164,11 @@ original image file name and %t which is replaced by
   (expand-file-name ".image-dired_rotate_temp"
                     (locate-user-emacs-file "image-dired/"))
   "Temporary file for rotate operations."
-  :group 'image-dired
   :type 'file)
 
 (defcustom image-dired-cmd-write-exif-data-program "exiftool"
   "Program used to write EXIF data to image.
 Used together with `image-dired-cmd-write-exif-data-options'."
-  :group 'image-dired
   :type 'file)
 
 (defcustom image-dired-cmd-write-exif-data-options
@@ -185,7 +178,6 @@ Used with `image-dired-cmd-write-exif-data-program'.
 Available format specifiers are: %f which is replaced by
 the image file name, %t which is replaced by the tag name and %v
 which is replaced by the tag value."
-  :group 'image-dired
   :version "26.1"
   :type '(repeat (string :tag "Argument")))