dotfiles/emacs.d/lsp.el

;; This should be used for any hooks instead of `lsp`. Doing so makes it so that
;; LSP will not be loaded automatically unless the file is already part of a
;; pre-configured workspace/project/session. There will be no automatic prompt when
;; a file is opened from a directory that is not part of an existing workspace.
;; To initialize a new workspace/project/session, use `M-x lsp`.
(defun lsp-non-interactive ()
  (require 'lsp)
  (when (lsp-workspace-root)
    (lsp)))

(defun gered/enable-lsp ()
  (interactive)
  (add-hook 'prog-mode-hook 'lsp-non-interactive)
  (message "Adding lsp hook to prog-modes"))

(defun gered/disable-lsp ()
  (interactive)
  (remove-hook 'prog-mode-hook 'lsp-non-interactive)
  (message "Removing lsp hook from prog-modes"))

(use-package lsp-mode
  :ensure t
  :init
  (setq lsp-keymap-prefix "M-z")
  :hook
  ((prog-mode . lsp-non-interactive)
   (lsp-mode . lsp-enable-which-key-integration))
  :config
  (setq lsp-enable-on-type-formatting nil)
  (setq lsp-headerline-breadcrumb-enable nil)
  (setq lsp-enable-snippet nil)
  (setq lsp-warn-no-matched-clients nil)
  ;; having this giant window pop-up while typing is mega annoying! wish this could be done
  ;; as a tooltip instead ...
  (setq lsp-signature-render-documentation nil)
  ;; seems to remove the semi-annoying "Unable to autoconfigure company-mode" warning
  ;; but still leaves completion via corfu working?
  (setq lsp-completion-provider :none)
  ; disable automatic prompting of lsp server installations when opening new files
  ; NOTE: to do this manually, using M-x lsp-install-server
  ; NOTE: visit https://emacs-lsp.github.io/lsp-mode/page/languages/ for manual language server install docs
  (setq lsp-enable-suggest-server-download nil)
  :commands lsp)

(use-package lsp-ui
  :ensure t
  :commands lsp-ui)

(use-package lsp-treemacs
  :ensure t
  :after lsp-mode
  :commands lsp-treemacs-errors-list)