401-rust: reorganize use-package configurations

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

site-start.d/401-rust.el

@@ -1,74 +1,57 @@
 ;;; 401-rust.el --- handle rust code
 
 ;;; Commentary:
+
 ;;  using rust-mode with rust-analyzer via lsp
 
 ;;; Code:
+
 ;; load rustic -> IDE like for rust
+;; it superseeds rust-mode
 (use-package rustic
   :ensure t
-  :init
-  (setq rustic-lsp-server 'rust-analyzer)
-  (setq rustic-format-on-save t))
+  :config
+  ;; recommended: use spaces instead of tabs
+  (add-hook 'rust-mode-hook
+	    (lambda () (setq indent-tabs-mode nil)))
+  (add-hook 'rustic-mode-hook
+	    (lambda () (setq indent-tabs-mode nil)))
+  ;; enable code folding und line numbering rust buffers
+  (add-hook 'prog-mode-hook
+	    ;;'lsp-origami-mode
+	    'hs-minor-mode
+	    'linum-relative-mode)
+  ;;(remove-hook 'rustic-mode-hook 'flycheck-mode)
 
-;; use the lsp UI package
-(use-package lsp-ui)
+  ;; use the lsp UI package
+  ;; https://emacs-lsp.github.io/lsp-mode
+  (use-package lsp-ivy)
+  (use-package lsp-ui)
 
-;; use rust-analyzer via lsp
-;; (setq lsp-rust-analyzer-server-command '("~/.cargo/bin/rust-analyzer"))
-;; (add-hook 'before-save-hook (lambda () (when (eq 'rust-mode major-mode)
-;;					   (lsp-format-buffer))))
+  ;; use the yasnippet
+  (use-package yasnippet
+    ;; YASnippet is a template system for Emacs.
+    ;; It allows you to type an abbreviation and automatically expand it into function templates
+    ;; use YASnippet as a non-global minor mode
+    :config
+    (yas-reload-all))
 
-;; load the language-server-protocol (lsp)
-;; (use-package lsp-mode
-;;      :init
-;;      (add-hook 'prog-mode-hook 'lsp-mode)
-;;      :after rustic)
+  ;; company-capf.el from load-path
+  (use-package linum-relative
+    :config
+    (setq linum-relative-backend 'display-line-numbers-mode))
 
-;;      ;; :config
-;;      ;; (use-package lsp-flycheck
-;;      ;;		:ensure f ; comes with lsp-mode
-;;      ;;		:after rustic))
-
-;; (push 'rustic-clippy flycheck-checkers)
-
-;; Turn off flycheck.
-;; (remove-hook 'rustic-mode-hook 'flycheck-mode)
-
-
-;; ;; load rust-mode
-;; (use-package rust-mode
-;;     :mode "\\.rs\\'"
-;;     :init
-;;     (setq rust-format-on-save t))
-
-
-;; ;; bind the lsp-rust mode
-;; (use-package lsp-rust
-;;   :after lsp-mode)
-
-;; option: bind commands to keys:
-;;   - lsp-rust-analyzer-join-lines
-;;   - lsp-extend-selection
-;;   - lsp-rust-analyzer-expand-macro
-
-
-;; (autoload 'rust-mode "rust-mode"
-;;   "Major mode for the rust programming language" t)
-
-;; (add-hook 'rust-mode-hook #'racer-mode)
-;; (add-hook 'racer-mode-hook #'eldoc-mode)
-;; (add-hook 'racer-mode-hook #'company-mode)
-;; (add-hook 'rust-mode-hook 'cargo-minor-mode)
-;; (add-hook 'flycheck-mode #'flycheck-rust)
-;; (add-hook 'flycheck-mode-hook #'flycheck-rust-setup)
-
-;; ;; reccommended: use spaces instead of tabs
-;; (add-hook 'rust-mode-hook
-;;	  (lambda () (setq indent-tabs-mode nil)))
-
-;; ;; on save, run rustfmt if installed (C-c C-f)
-;; (setq rust-format-on-save t)
+  :custom
+  ;;(linum-on)
+  ;;(linum-relative-toggle)
+  ;;(hs-minor-mode t)
+  ;;(lsp-origami-try-enable)
+  ;;(linum-relative-mode 1))
+  (rustic-lsp-server 'rust-analyzer)
+  (rustic-lsp-format t))
 
 (provide '401-rust)
+;; Local Variables:
+;; no-byte-compile: t
+;; End
 ;;; 401-rust.el ends here