Add support for vala-language-server. (#2294)

Author: dsvensson

CHANGELOG.org

@@ -9,6 +9,7 @@
   * Provided automatic installers for `lsp-clojure` (`clojure-lsp`).
   * Added ~lsp-modeline-workspace-status-mode~ and option to disable it via ~lsp-modeline-workspace-status-enable~.
   * Automatically download [[https://github.com/eclipse/lemminx][XML language server Lemminx]]
+  * Add Vala support.
 ** Release 7.0.1
   * Introduced ~lsp-diagnostics-mode~.
   * Safe renamed ~lsp-flycheck-default-level~ -> ~lsp-diagnostics-flycheck-default-level~

clients/lsp-vala.el

@@ -0,0 +1,49 @@
+;;; lsp-vala.el --- Vala Client settings         -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2020 Daniel Svensson
+
+;; Author: Daniel Svensson
+;; Keywords: vala lsp
+
+;; 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.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; LSP client for Vala
+
+;;; Code:
+
+(require 'lsp-mode)
+
+(defgroup lsp-vala nil
+  "LSP support for Vala, using vala-language-server"
+  :group 'lsp-mode
+  :link '(url-link "https://github.com/benwaffle/vala-language-server")
+  :package-version `(lsp-mode . "7.1.0"))
+
+(defcustom lsp-clients-vala-ls-executable "vala-language-server"
+  "Path to the `vala-language-server' binary."
+  :group 'lsp-vala
+  :risky t
+  :type 'file
+  :package-version `(lsp-mode . "7.1.0"))
+
+(lsp-register-client
+ (make-lsp-client :new-connection (lsp-stdio-connection (lambda () lsp-clients-vala-ls-executable))
+                  :major-modes '(vala-mode)
+                  :priority -1
+                  :server-id 'valals))
+
+(provide 'lsp-vala)
+;;; lsp-vala.el ends here

docs/lsp-clients.json

@@ -506,6 +506,14 @@
     "installation": "cargo install --git https://github.com/latex-lsp/texlab.git",
     "debugger": "Not available"
   },
+  {
+    "name": "vala",
+    "full-name": "Vala",
+    "server-name": "vala-language-server",
+    "server-url": "https://github.com/benwaffle/vala-language-server",
+    "installation": "meson build && ninja -C build install",
+    "debugger": "Not available"
+  },
   {
     "name": "verilog",
     "full-name": "Verilog/SystemVerilog",

lsp-mode.el

@@ -354,7 +354,7 @@ unless overridden by a more specific face association."
          lsp-hack lsp-groovy lsp-haskell lsp-haxe lsp-java lsp-javascript lsp-json
          lsp-kotlin lsp-lua lsp-nim lsp-nix lsp-metals lsp-ocaml lsp-perl lsp-php lsp-pwsh
          lsp-pyls lsp-python-ms lsp-purescript lsp-r lsp-rf lsp-rust lsp-solargraph
-         lsp-tex lsp-terraform lsp-verilog lsp-vetur lsp-vhdl lsp-vimscript lsp-xml
+         lsp-tex lsp-terraform lsp-vala lsp-verilog lsp-vetur lsp-vhdl lsp-vimscript lsp-xml
          lsp-yaml lsp-sqls lsp-svelte)
   "List of the clients to be automatically required."
   :group 'lsp-mode
@@ -889,7 +889,8 @@ Changes take effect only when a new session is started."
                                         (robot-mode . "robot")
                                         (racket-mode . "racket")
                                         (nix-mode . "nix")
-                                        (prolog-mode . "prolog"))
+                                        (prolog-mode . "prolog")
+                                        (vala-mode . "vala"))
   "Language id configuration.")
 
 (defvar lsp--last-active-workspaces nil