Better magit+shackle integration

core/autoload/buffers.el

@@ -65,11 +65,16 @@ the current workspace."
   (cl-remove-if-not #'doom-real-buffer-p (or buffer-list (doom-buffer-list))))
 
 ;;;###autoload
-(defun doom-buffers-in-mode (modes &optional buffer-list)
+(defun doom-buffers-in-mode (modes &optional buffer-list derived-p)
   "Get a list of all buffers (in the current workspace OR in BUFFER-LIST) whose
 `major-mode' is one of MODES."
   (let ((modes (if (listp modes) modes (list modes))))
-    (cl-remove-if-not (lambda (buf) (memq (buffer-local-value 'major-mode buf) modes))
+    (cl-remove-if-not (if derived-p
+                          (lambda (buf)
+                            (with-current-buffer buf
+                              (apply #'derived-mode-p modes)))
+                        (lambda (buf)
+                          (memq (buffer-local-value 'major-mode buf) modes)))
                       (or buffer-list (doom-buffer-list)))))
 
 ;;;###autoload

core/autoload/popups.el

@@ -23,6 +23,18 @@ current window if omitted."
    buffer
    nil (or plist (shackle-match buffer))))
 
+;;;###autoload
+(defun doom-popup-switch-to-buffer (buffer)
+  (unless (doom-popup-p)
+    (let ((popups (doom-popup-windows)))
+      (unless popups
+        (error "No popups to switch"))
+      (select-window (car popups))))
+  (set-window-dedicated-p nil nil)
+  (switch-to-buffer buffer nil t)
+  (prog1 (selected-window)
+    (set-window-dedicated-p nil t)))
+
 ;;;###autoload
 (defun doom-popup-file (file &rest plist)
   "Display FILE in a shackle popup, with PLIST rules. See `shackle-rules' for

core/core-popups.el

@@ -391,6 +391,39 @@ the command buffer."
       (doom--switch-from-popup (find-function-search-for-symbol fun 'defface file)))))
 
 
+(after! magit
+  (set! :popup "^\\*magit" :regexp t :size 0.5 :noesc t :autokill t)
+
+  ;; magit doesn't need much coercing. It works with shackle as is, except for
+  ;; one problem: following non-file magit links tends to open additional
+  ;; popups. We want all this to be contained within one window, so...
+  (defun doom-magit-popup-buffer (buffer)
+    "Pop up the magit window with shackle."
+    (cond ((doom-popup-p)
+           (prog1 (doom-popup-switch-to-buffer buffer)
+             (doom-hide-modeline-mode +1)))
+          (t
+           (magit-display-buffer-traditional buffer))))
+
+  (defun doom-magit-quit-window (kill-buffer)
+    "Close the current magit window properly."
+    (let ((last (current-buffer)))
+      (cond ((when-let (dest (doom-buffers-in-mode
+                              'magit-mode
+                              (cl-remove-if (lambda (buf) (eq buf last))
+                                            (mapcar #'car (window-prev-buffers)))
+                              t))
+               (doom-popup-switch-to-buffer (car dest)))
+             (kill-buffer last))
+            (t
+             (mapc #'kill-buffer
+                   (doom-buffers-in-mode '(magit-mode magit-process-mode)
+                                         (buffer-list) t))))))
+
+  (setq magit-display-buffer-function #'doom-magit-popup-buffer
+        magit-bury-buffer-function #'doom-magit-quit-window))
+
+
 (after! mu4e
   (defun doom*mu4e-popup-window (buf height)
     (doom-popup-buffer buf :size 10 :noselect t)

modules/feature/version-control/+git.el

@@ -74,13 +74,7 @@
 
 
 (def-package! magit
-  :commands (magit-status magit-blame)
-  :config
-  (set! :popup "^\\*magit" :regexp t)
-  (map! :map magit-mode-map
-        ;; Don't interfere with window movement keys
-        :nv "C-j" nil
-        :nv "C-k" nil))
+  :commands (magit-status magit-blame))
 
 
 (def-package! git-link
@@ -89,5 +83,10 @@
 
 (def-package! evil-magit
   :when (featurep! :feature evil)
-  :after magit)
+  :after magit
+  :init (setq evil-magit-want-horizontal-movement t)
+  :config
+  (map! :map (magit-status-mode-map magit-revision-mode-map)
+        :n "C-j" nil
+        :n "C-k" nil))