feat(dired): open dirvish sidebar w/ '<leader> o {p,P}'

A new alternative to neotree and treemacs.

modules/config/default/+emacs-bindings.el

@@ -249,6 +249,9 @@
        (:when (modulep! :ui treemacs)
         :desc "Project sidebar"               "p" #'+treemacs/toggle
         :desc "Find file in project rsidebar" "P" #'treemacs-find-file)
+       (:when (modulep! :emacs dired +dirvish)
+        :desc "Project sidebar"               "p" #'dirvish-side
+        :desc "Find file in project sidebar"  "P" #'+dired/dirvish-side-and-follow)
        (:when (modulep! :term shell)
         :desc "Toggle shell popup"            "t" #'+shell/toggle
         :desc "Open shell here"               "T" #'+shell/here)

modules/config/default/+evil-bindings.el

@@ -697,6 +697,9 @@
        (:when (modulep! :ui treemacs)
         :desc "Project sidebar" "p" #'+treemacs/toggle
         :desc "Find file in project sidebar" "P" #'treemacs-find-file)
+       (:when (modulep! :emacs dired +dirvish)
+        :desc "Project sidebar"              "p" #'dirvish-side
+        :desc "Find file in project sidebar" "P" #'+dired/dirvish-side-and-follow)
        (:when (modulep! :term shell)
         :desc "Toggle shell popup"    "t" #'+shell/toggle
         :desc "Open shell here"       "T" #'+shell/here)

modules/emacs/dired/autoload.el

@@ -13,3 +13,37 @@
   (and (not (file-remote-p default-directory))
        (locate-dominating-file "." ".git")
        (dired-git-info-mode 1)))
+
+;;;###autoload
+(defun +dired/dirvish-side-or-follow (&optional arg)
+  "Open `dirvish-side' then find the currently focused file.
+
+If dirvish is already open, remotely jump to the file in Dirvish.
+If given the prefix ARG, then prompt for a directory (replaces existing Dirvish
+sidebars)."
+  (interactive "P")
+  (save-selected-window
+    (let ((win (dirvish-side--session-visible-p)))
+      (when (and win arg)
+        (with-selected-window win
+          (dirvish-quit))
+        (setq win nil))
+      (unless win
+        (call-interactively #'dirvish-side))
+      (when-let* (((not dirvish--this))
+                  (dir (or (dirvish--get-project-root) default-directory))
+                  (win (dirvish-side--session-visible-p))
+                  (dv (with-selected-window win (dirvish-curr)))
+                  ((not (active-minibuffer-window)))
+                  (file buffer-file-name))
+        (with-selected-window win
+          (when dir
+            (setq dirvish--this dv)
+            (let (buffer-list-update-hook) (dirvish-find-entry-a dir))
+            (if dirvish-side-auto-expand (dirvish-subtree-expand-to file)
+              (dired-goto-file file))
+            (dirvish-prop :cus-header 'dirvish-side-header)
+            (dirvish--setup-mode-line (car (dv-layout dv)))
+            (dirvish-update-body-h))
+          (setq dirvish--this nil)))))
+  (select-window (dirvish-side--session-visible-p)))