emacs: Add customization groups for faces.

* emacs/guix.el (guix-faces): New custom group.
* emacs/guix-base.el (guix-operation-option-key): Use it.
  (guix-define-buffer-type): Generate faces group.
* emacs/guix-info.el: Adjust faces to use new groups.
  (guix-info-faces): New custom group.
* emacs/guix-list.el: Likewise
  (guix-list-faces): New custom group.

4 files changed, 46 insertions, 26 deletions

diff --git a/emacs/guix-base.el b/emacs/guix-base.el
index 3bee910b05..a479f6dbf5 100644
--- a/emacs/guix-base.el
+++ b/emacs/guix-base.el
@@ -414,6 +414,7 @@ following keywords are available:
          (buf-str        (concat buf-type-str " buffer"))
          (prefix         (concat "guix-" entry-type-str "-" buf-type-str))
          (group          (intern prefix))
+         (faces-group    (intern (concat prefix "-faces")))
          (mode-map-str   (concat prefix "-mode-map"))
          (parent-mode    (intern (concat "guix-" buf-type-str "-mode")))
          (mode           (intern (concat prefix "-mode")))
@@ -442,6 +443,10 @@ following keywords are available:
          :prefix ,(concat prefix "-")
          :group ',(intern (concat "guix-" buf-type-str)))
 
+       (defgroup ,faces-group nil
+         ,(concat "Faces for " buf-type-str " buffer with " entry-str ".")
+         :group ',(intern (concat "guix-" buf-type-str "-faces")))
+
        (defcustom ,buf-name-var ,buf-name-val
          ,(concat "Default name of the " buf-str " for displaying " entry-str ".")
          :type 'string
@@ -789,7 +794,7 @@ GENERATION is a generation number of `guix-profile' profile."
 (defface guix-operation-option-key
   '((t :inherit font-lock-warning-face))
   "Face used for the keys of operation options."
-  :group 'guix)
+  :group 'guix-faces)
 
 (defcustom guix-operation-confirm t
   "If nil, do not prompt to confirm an operation."
diff --git a/emacs/guix-info.el b/emacs/guix-info.el
index 4bdd62a6a5..260c7680f5 100644
--- a/emacs/guix-info.el
+++ b/emacs/guix-info.el
@@ -33,25 +33,30 @@
   :prefix "guix-info-"
   :group 'guix)
 
+(defgroup guix-info-faces nil
+  "Faces for info buffers."
+  :group 'guix-info
+  :group 'guix-faces)
+
 (defface guix-info-param-title
   '((t :inherit font-lock-type-face))
   "Face used for titles of parameters."
-  :group 'guix-info)
+  :group 'guix-info-faces)
 
 (defface guix-info-file-path
   '((t :inherit link))
   "Face used for file paths."
-  :group 'guix-info)
+  :group 'guix-info-faces)
 
 (defface guix-info-url
   '((t :inherit link))
   "Face used for URLs."
-  :group 'guix-info)
+  :group 'guix-info-faces)
 
 (defface guix-info-time
   '((t :inherit font-lock-constant-face))
   "Face used for timestamps."
-  :group 'guix-info)
+  :group 'guix-info-faces)
 
 (defface guix-info-action-button
   '((((type x w32 ns) (class color))
@@ -59,7 +64,7 @@
      :background "lightgrey" :foreground "black")
     (t :inherit button))
   "Face used for action buttons."
-  :group 'guix-info)
+  :group 'guix-info-faces)
 
 (defface guix-info-action-button-mouse
   '((((type x w32 ns) (class color))
@@ -67,7 +72,7 @@
      :background "grey90" :foreground "black")
     (t :inherit highlight))
   "Mouse face used for action buttons."
-  :group 'guix-info)
+  :group 'guix-info-faces)
 
 (defcustom guix-info-ignore-empty-vals nil
   "If non-nil, do not display parameters with nil values."
@@ -414,43 +419,43 @@ See `insert-text-button' for the meaning of PROPERTIES."
   '((((type tty pc) (class color)) :weight bold)
     (t :height 1.6 :weight bold :inherit variable-pitch))
   "Face for package name and version headings."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-name
   '((t :inherit font-lock-keyword-face))
   "Face used for a name of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-name-button
   '((t :inherit button))
   "Face used for a full name that can be used to describe a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-version
   '((t :inherit font-lock-builtin-face))
   "Face used for a version of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-synopsis
   '((((type tty pc) (class color)) :weight bold)
     (t :height 1.1 :weight bold :inherit variable-pitch))
   "Face used for a synopsis of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-description
   '((t))
   "Face used for a description of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-license
   '((t :inherit font-lock-string-face))
   "Face used for a license of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-location
   '((t :inherit link))
   "Face used for a location of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-installed-outputs
   '((default :weight bold)
@@ -462,17 +467,17 @@ See `insert-text-button' for the meaning of PROPERTIES."
      :foreground "green")
     (t :underline t))
   "Face used for installed outputs of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-uninstalled-outputs
   '((t :weight bold))
   "Face used for uninstalled outputs of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defface guix-package-info-obsolete
   '((t :inherit error))
   "Face used if a package is obsolete."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defvar guix-info-insert-package-function
   #'guix-package-info-insert-with-heading
@@ -541,7 +546,7 @@ Face name is `guix-package-info-TYPE-inputs'."
        (defface ,face
          '((t :inherit guix-package-info-name-button))
          ,(concat "Face used for " type-desc "inputs of a package.")
-         :group 'guix-package-info)
+         :group 'guix-package-info-faces)
 
        (define-button-type ',btn
          :supertype 'guix-package-name
@@ -672,7 +677,7 @@ ENTRY is an alist with package info."
 (defface guix-package-info-source
   '((t :inherit link :underline nil))
   "Face used for a source URL of a package."
-  :group 'guix-package-info)
+  :group 'guix-package-info-faces)
 
 (defcustom guix-package-info-auto-find-source nil
   "If non-nil, find a source file after pressing a \"Show\" button.
@@ -825,17 +830,17 @@ If nil, insert output in a default way.")
 (defface guix-generation-info-number
   '((t :inherit font-lock-keyword-face))
   "Face used for a number of a generation."
-  :group 'guix-generation-info)
+  :group 'guix-generation-info-faces)
 
 (defface guix-generation-info-current
   '((t :inherit guix-package-info-installed-outputs))
   "Face used if a generation is the current one."
-  :group 'guix-generation-info)
+  :group 'guix-generation-info-faces)
 
 (defface guix-generation-info-not-current
   '((t nil))
   "Face used if a generation is not the current one."
-  :group 'guix-generation-info)
+  :group 'guix-generation-info-faces)
 
 (defvar guix-info-insert-generation-function nil
   "Function used to insert a generation information.
diff --git a/emacs/guix-list.el b/emacs/guix-list.el
index 9796464dbf..87d214bb4d 100644
--- a/emacs/guix-list.el
+++ b/emacs/guix-list.el
@@ -35,10 +35,15 @@
   :prefix "guix-list-"
   :group 'guix)
 
+(defgroup guix-list-faces nil
+  "Faces for list buffers."
+  :group 'guix-list
+  :group 'guix-faces)
+
 (defface guix-list-file-path
   '((t :inherit guix-info-file-path))
   "Face used for file paths."
-  :group 'guix-list)
+  :group 'guix-list-faces)
 
 (defcustom guix-list-describe-warning-count 10
   "The maximum number of entries for describing without a warning.
@@ -488,12 +493,12 @@ With prefix (if ARG is non-nil), describe entries marked with any mark."
 (defface guix-package-list-installed
   '((t :inherit guix-package-info-installed-outputs))
   "Face used if there are installed outputs for the current package."
-  :group 'guix-package-list)
+  :group 'guix-package-list-faces)
 
 (defface guix-package-list-obsolete
   '((t :inherit guix-package-info-obsolete))
   "Face used if a package is obsolete."
-  :group 'guix-package-list)
+  :group 'guix-package-list-faces)
 
 (defcustom guix-package-list-generation-marking-enabled nil
   "If non-nil, allow putting marks in a list with 'generation packages'.
diff --git a/emacs/guix.el b/emacs/guix.el
index 244696a184..ac6efbb475 100644
--- a/emacs/guix.el
+++ b/emacs/guix.el
@@ -39,6 +39,11 @@
   :prefix "guix-"
   :group 'external)
 
+(defgroup guix-faces nil
+  "Guix faces."
+  :group 'guix
+  :group 'faces)
+
 (defcustom guix-list-single-package nil
   "If non-nil, list a package even if it is the only matching result.
 If nil, show a single package in the info buffer."