init-bm.el

(use-package bm
  :demand t

  :init
  ;; restore on load (even before you require bm)
  (setq bm-restore-repository-on-load t)

  :config
  ;; Allow cross-buffer 'next'
  (setq bm-cycle-all-buffers t)  
  ;; where to store persistant files
  (setq bm-repository-file "~/.emacs.d/bm-repository")
  ;; save bookmarks
  (setq-default bm-buffer-persistence t)

  ;; Loading the repository from file when on start up.
  (add-hook' after-init-hook 'bm-repository-load)

  ;; Restoring bookmarks when on file find.
  (add-hook 'find-file-hooks 'bm-buffer-restore)


  ;; Saving bookmarks
  (add-hook 'kill-buffer-hook #'bm-buffer-save)
  ;; Saving the repository to file when on exit.
  ;; kill-buffer-hook is not called when Emacs is killed, so we
  ;; must save all bookmarks first.
  (defun modi/bm-save-all-bm-to-repository ()
    (bm-buffer-save-all)
    (bm-repository-save))
  (add-hook 'kill-emacs-hook #'modi/bm-save-all-bm-to-repository)
  (add-hook 'after-save-hook #'bm-buffer-save)
  ;; The `after-save-hook' is not necessary to use to achieve persistence,
  ;; but it makes the bookmark data in repository more in sync with the file
  ;; state.


  ;; Restoring bookmarks
  (add-hook 'find-file-hooks   #'bm-buffer-restore)
  (add-hook 'after-revert-hook #'bm-buffer-restore)
  ;; The `after-revert-hook' is not necessary to use to achieve persistence,
  ;; but it makes the bookmark data in repository more in sync with the file
  ;; state. This hook might cause trouble when using packages
  ;; that automatically reverts the buffer (like vc after a check-in).
  ;; This can easily be avoided if the package provides a hook that is
  ;; called before the buffer is reverted (like `vc-before-checkin-hook').
  ;; Then new bookmarks can be saved before the buffer is reverted.
  ;; Make sure bookmarks is saved before check-in (and revert-buffer)
  (add-hook 'vc-before-checkin-hook #'bm-buffer-save))


(provide 'init-bm)
;;; init-bm.el ends here