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+;;; init-lang.el --- Settings for all programming languages
+
+;; Copyright (C) 2016 Miquel Sabaté Solà <mikisabate@gmail.com>
+;;
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;;; Commentary:
+;;
+;; Settings for all programming languages.
+
+;;; Code:
+
+(require 'use-package)
+
+(defun warnings-mode-hook ()
+  "Hook for enabling the warning face on strings with a warning prefix."
+
+  (font-lock-add-keywords nil
+    '(("\\(XXX\\|FIXME\\|TODO\\|HACK\\|NOTE\\)"
+    1 font-lock-warning-face prepend))))
+
+;; Text mode.
+(add-hook 'text-mode-hook (lambda () (flyspell-mode 1)))
+
+;; Emacs Lisp mode
+(add-hook 'emacs-lisp-mode-hook 'eldoc-mode)
+(add-hook 'emacs-lisp-mode-hook 'warnings-mode-hook)
+(add-hook 'emacs-lisp-mode-hook #'rainbow-delimiters-mode)
+
+;; C-common (it includes languages with a similar syntax of C).
+(add-hook 'c-mode-common-hook 'warnings-mode-hook)
+(add-hook 'c-mode-common-hook (lambda() (flyspell-prog-mode)))
+
+;; C
+(add-hook 'c-mode-hook
+  (lambda () (setq indent-tabs-mode t)))
+
+;; C++
+(add-hook 'c++-mode-hook
+  (lambda () (setq indent-tabs-mode t)))
+
+;; Ruby mode
+(add-hook 'ruby-mode-hook 'warnings-mode-hook)
+
+(defun mssola-go-mode ()
+  "My configuration for Go mode."
+
+  ; Use goimports instead of go-fmt
+  (setq gofmt-command "goimports")
+
+  ; Call Gofmt before saving
+  (add-hook 'before-save-hook 'gofmt-before-save)
+
+  ; Integration flycheck with Go
+  (add-to-list 'load-path
+    (concat (getenv "GOPATH") "/src/github.com/dougm/goflymake"))
+  (require 'go-flycheck)
+
+  (evil-leader/set-key
+    "." 'godef-jump-other-window)
+
+  (setq indent-tabs-mode t)
+  (flyspell-prog-mode)
+
+  ; eldoc support
+  (use-package go-eldoc
+    :ensure t
+    :config
+    (require 'go-eldoc))
+
+  (use-package go-add-tags
+    :ensure t
+    :config
+    (evil-leader/set-key "t" 'go-add-tags)))
+
+;; Go
+(use-package go-mode
+  :ensure t
+  :pin melpa-stable
+  :config
+
+  (add-hook 'go-mode-hook 'warnings-mode-hook)
+  (add-hook 'go-mode-hook 'go-eldoc-setup)
+  (add-hook 'go-mode-hook 'mssola-go-mode))
+
+;; Smart tabs
+(use-package smart-tabs-mode
+  :ensure t
+  :config
+  (smart-tabs-add-language-support golang go-mode-hook
+    ((c-indent-line . c-basic-offset)
+     (c-indent-region . c-basic-offset)))
+  (smart-tabs-insinuate 'c 'c++ 'golang))
+
+;; Markdown mode with preview mode in the browser.
+(use-package markdown-mode
+  :ensure t
+  :config
+
+  ; This is the one that I got from openSUSE.
+  (custom-set-variables
+    '(markdown-command "/usr/bin/markdown-calibre"))
+
+  ; Preview mode does its things through websockets, so it's a requirement.
+  ; After that, we can safely require it.
+  (use-package websocket
+    :ensure t
+    :config
+    (use-package markdown-preview-mode
+      :ensure t)))
+
+; Slim
+(use-package slim-mode
+  :ensure t)
+
+; YAML
+(use-package yaml-mode
+  :ensure t
+  :config
+
+  (add-hook 'yaml-mode-hook 'warnings-mode-hook))
+
+; SASS/SCSS
+(use-package scss-mode
+  :ensure t
+  :config
+
+  (setq scss-compile-at-save nil)
+  (add-hook 'yaml-mode-hook 'warnings-mode-hook))
+
+; Apply purple function identifiers to all these languages.
+(dolist (lang-hook '(ruby-mode-hook
+                     php-mode-hook
+                     perl-mode-hook
+                     emacs-lisp-mode-hook))
+  (add-hook lang-hook 'soria-purple-identifiers))
+
+;; YASnippet
+(use-package yasnippet
+  :ensure t
+  :config
+  (yas-reload-all)
+  (add-hook 'prog-mode-hook #'yas-minor-mode))
+
+;; CMake
+(use-package cmake-mode
+  :ensure t
+  :config
+
+  (setq auto-mode-alist
+        (append
+         '(("CMakeLists\\.txt\\'" . cmake-mode))
+         '(("\\.cmake\\'" . cmake-mode))
+         auto-mode-alist))
+
+  (use-package cmake-font-lock
+    :ensure t
+    :config
+
+    (add-hook 'cmake-mode-hook 'cmake-font-lock-activate)
+    (add-hook 'yaml-mode-hook 'warnings-mode-hook)))
+
+(use-package dockerfile-mode
+  :ensure t
+  :config
+
+  (add-to-list 'auto-mode-alist '("Dockerfile\\'" . dockerfile-mode)))
+
+(use-package terraform-mode
+  :ensure t
+  :config
+
+  (terraform-format-on-save-mode))
+
+(use-package hcl-mode
+  :ensure t)
+
+(use-package salt-mode
+  :ensure t)
+
+(use-package php-mode
+  :ensure t)
+
+(provide 'init-lang)
+;;; init-lang.el ends here