Updates emacs with lsp and other nice features

.emacs

@@ -26,7 +26,7 @@
 	 ("melpa" . "https://melpa.org/packages/")))
  '(package-enable-at-startup nil)
  '(package-selected-packages
-   '(zenburn-theme langtool smart-tabs-mode typescript-mode protobuf-mode opencl-mode glsl-mode go-mode elpy markdown-mode yasnippet srefactor irony cmake-mode company magit use-package))
+   '(flymake-go company-go zenburn-theme langtool smart-tabs-mode typescript-mode protobuf-mode opencl-mode glsl-mode go-mode elpy markdown-mode yasnippet srefactor irony cmake-mode company magit use-package))
  '(safe-local-variable-values
    '((vc-follow-symlinks . t)
 	 (TeX-master . t)
@@ -142,24 +142,6 @@
   (setq cmake-tab-width 4)
   )
 
-(use-package company-irony
-  :after (company irony)
-;  :config
-;  (add-to-list 'company-backends 'company-irony)
-  )
-
-(use-package company-irony-c-headers
-  :after (company irony)
-;  :config
-;  (add-to-list 'company-backends 'company-irony-c-headers)
-  )
-
-(use-package irony
-  :config
-  (push 'glsl-mode irony-supported-major-modes)
-  (push 'protobuf-mode irony-supported-major-modes)
-  (push 'opencl-mode irony-supported-major-modes)
-  )
 
 (use-package srefactor
   :bind (:map c-mode-map
@@ -182,21 +164,38 @@
   :after (yasnippet)
   )
 
+(use-package projectile
+  :bind ( :map projectile-mode-map
+			   ( "C-c p" . 'projectile-command-map)
+			   )
+  :config
+  (projectile-mode +1)
+  )
+
+(use-package cpputils-cmake
+  :config
+  (setq cppcm-write-flymake-makefile nil)
+  :bind ( "C-c C-f" . ff-find-other-file)
+  )
+
+(use-package lsp-mode
+  :init
+  ;; set prefix for lsp-command-keymap (few alternatives - "C-l", "C-c l")
+  (setq lsp-keymap-prefix "C-c l")
+  :hook (;; replace XXX-mode with concrete major-mode(e. g. python-mode)
+		 (c++-mode . lsp-deferred)
+		 (c-mode . lsp-deferred)
+		 (cmake-mode . lsp-deferred)
+		 (go-mode . lsp-deferred)
+		 ;; if you want which-key integration
+		 (lsp-mode . lsp-enable-which-key-integration))
+  :commands (lsp lsp-deferred))
+
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; C/C++
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-(defun c-c++-header ()
-  "sets either c-mode or c++-mode, whichever is appropriate for
-header"
-  (interactive)
-  (let ((c-file (concat (substring (buffer-file-name) 0 -1) "c")))
-    (if (file-exists-p c-file)
-        (c-mode)
-      (c++-mode)
-	  )
-	)
-  )
 (add-to-list 'auto-mode-alist '("\\.h\\'" . c-c++-header))
 
 (defconst tuleu-cc-style
@@ -207,23 +206,14 @@ header"
 (c-add-style "tuleu-c++" tuleu-cc-style)
 
 (defun my-c-common-hook ()
-  (global-set-key (kbd "C-c C-h") 'ff-find-other-file)
-  (require 'compile)
-  (global-set-key (kbd "C-x f") 'find-file-at-point)
-  (c-set-offset 'inextern-lang 0)
-  (eval-after-load 'company
-	'(add-to-list
-	  'company-backends
-	  '(company-irony company-irony-c-headers company-yasnippet)))
   (smart-tabs-mode)
-  (irony-mode)
   (yas-minor-mode-on)
-  (company-irony-setup-begin-commands)
+  (if (derived-mode-p 'c-mode 'c++-mode)
-  (irony-cdb-autosetup-compile-options)
+      (cppcm-reload-all)
+    )
   )
 (add-hook 'c-mode-common-hook 'my-c-common-hook)
 
-
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; TeX/LaTeX
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -313,12 +303,8 @@ header"
 
 (use-package go-mode
   :config
-  (use-package company-go)
-  (use-package flymake-go)
   (setq gofmt-command "goimports")
   (add-hook 'before-save-hook 'gofmt-before-save)
-  (set (make-local-variable 'company-backends) '(company-go))
-  (flymake-mode)
   (setq compile-command "go build && go test -coverprofile=cover.out && go tool cover -html cover.out -o /tmp/cover.html")
   :bind (
 		 ("C-c C-h" . godef-describe)
@@ -340,7 +326,7 @@ header"
 	'((c-basic-offset . 4)
 	  (indent-tabs-mode . t))
 	)
-  (c-add-style "my-style" my-protobuf-style t)
+  ;; (c-add-style "my-style" my-protobuf-style t)
   )