spacemacs/layers/+lang/java/funcs.el
syl20bnr ac30247811 [lsp] When used, make LSP the default backend for all supported lang
* Added a new function to each language to select the backend
* Use these new functions in all `pcase`.
2019-09-30 00:49:44 -04:00

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;;; packages.el --- Java functions File for Spacemacs
;;
;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
;;
;; Author: Lukasz Klich <klich.lukasz@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(defun spacemacs//java-backend ()
"Returns selected backend."
(if java-backend
java-backend
(cond
((configuration-layer/layer-used-p 'lsp) 'lsp)
(t 'meghanada))))
(defun spacemacs//java-setup-backend ()
"Conditionally setup java backend."
(pcase (spacemacs//java-backend)
(`meghanada (spacemacs//java-setup-meghanada))
(`lsp (spacemacs//java-setup-lsp))))
(defun spacemacs//java-setup-company ()
"Conditionally setup company based on backend."
(pcase (spacemacs//java-backend)
(`meghanada (spacemacs//java-setup-meghanada-company))
(`lsp (spacemacs//java-setup-lsp-company))))
(defun spacemacs//java-setup-dap ()
"Conditionally setup elixir DAP integration."
;; currently DAP is only available using LSP
(pcase (spacemacs//java-backend)
(`lsp (spacemacs//java-setup-lsp-dap))))
(defun spacemacs//java-setup-flycheck ()
"Conditionally setup flycheck based on backend."
(pcase (spacemacs//java-backend)
(`meghanada (spacemacs//java-setup-meghanada-flycheck))
(`lsp (spacemacs//java-setup-lsp-flycheck))))
;; meghanada
(defun spacemacs//java-setup-meghanada ()
"Setup Meghanada."
(require 'meghanada)
;; jump handler
(add-to-list 'spacemacs-jump-handlers
'(meghanada-jump-declaration
:async spacemacs//java-meghanada-server-livep))
;; auto-install meghanada server
(let ((dest-jar (meghanada--locate-server-jar)))
(unless dest-jar
(meghanada-install-server)))
;; enable meghanada
(meghanada-mode))
(defun spacemacs//java-setup-meghanada-company ()
"Setup Meghanada auto-completion."
(meghanada-company-enable))
(defun spacemacs//java-setup-meghanada-flycheck ()
"Setup Meghanada syntax checking."
(when (spacemacs/enable-flycheck 'java-mode)
(require 'flycheck-meghanada)
(add-to-list 'flycheck-checkers 'meghanada)
(flycheck-mode)))
(defun spacemacs//java-meghanada-server-livep ()
"Return non-nil if the Meghanada server is up."
(and meghanada--client-process (process-live-p meghanada--client-process)))
;; Maven
(defun spacemacs/mvn-clean-compile ()
"Recompile using maven."
(interactive)
(mvn-clean)
(mvn-compile))
;; Gradle
(defun spacemacs/gradle-clean ()
"Execute 'gradle clean' command."
(interactive)
(gradle-execute "clean"))
(defun spacemacs/gradle-clean-build ()
"Execute 'gradle clean build' command."
(interactive)
(gradle-execute "clean build"))
(defun spacemacs/gradle-test-buffer ()
"Execute 'gradle test' command against current buffer tests."
(interactive)
(gradle-single-test (file-name-base (buffer-file-name))))
;; Misc
(defun spacemacs//java-delete-horizontal-space ()
(when (s-matches? (rx (+ (not space)))
(buffer-substring (line-beginning-position) (point)))
(delete-horizontal-space t)))
;; LSP Java
(defun spacemacs//java-setup-lsp ()
"Setup LSP Java."
(if (configuration-layer/layer-used-p 'lsp)
(progn
(require 'lsp-java)
(lsp))
(message "`lsp' layer is not installed, please add `lsp' layer to your dotfile.")))
(defun spacemacs//java-setup-lsp-company ()
"Setup lsp auto-completion."
(if (configuration-layer/layer-used-p 'lsp)
(progn
(spacemacs|add-company-backends
:backends company-lsp
:modes java-mode
:append-hooks nil
:call-hooks t)
(company-mode))
(message "`lsp' layer is not installed, please add `lsp' layer to your dotfile.")))
(defun spacemacs//java-setup-lsp-dap ()
"Setup DAP integration."
(require 'dap-java))
(defun spacemacs//java-setup-lsp-flycheck ()
"Setup LSP Java syntax checking."
(if (configuration-layer/layer-used-p 'lsp)
(when (spacemacs/enable-flycheck 'java-mode)
(require 'lsp-ui-flycheck)
(lsp-ui-flycheck-enable nil)
(flycheck-mode))
(message "`lsp' layer is not installed, please add `lsp' layer to your dotfile.")))