Add support for Jsonnet (#4283)

CHANGELOG.org

@@ -102,6 +102,7 @@
   * Add buf/protobuf support via [[https://github.com/bufbuild/buf-language-server][bufls]]
   * Add Assembly Language support.
   * Add Autotools support
+  * Add Jsonnet support
 ** Release 8.0.0
   * Add ~lsp-clients-angular-node-get-prefix-command~ to get the Angular server from another location which is still has ~/lib/node_modules~ in it.
   * Set ~lsp-clients-angular-language-server-command~ after the first connection to speed up subsequent connections.

clients/lsp-jsonnet.el

@@ -0,0 +1,51 @@
+;;; lsp-jsonnet.el --- lsp client for jsonnet -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2023 emacs-lsp maintainers
+
+;; Author: emacs-lsp maintainers
+;; Keywords: lsp, jsonnet
+
+;; 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 jsonnet language.
+;;
+;;; Code:
+
+(require 'lsp-mode)
+
+(defgroup lsp-jsonnet nil
+  "LSP support for jsonnet."
+  :group 'lsp-mode
+  :link '(url-link "https://github.com/grafana/jsonnet-language-server"))
+
+(defcustom lsp-clients-jsonnet-server-executable '("jsonnet-language-server")
+  "The jsonnet language server executable to use."
+  :group 'lsp-jsonnet
+  :risky t
+  :type '(repeat string))
+
+(lsp-register-client
+ (make-lsp-client
+  :new-connection (lsp-stdio-connection (lambda () lsp-clients-jsonnet-server-executable))
+  :activation-fn (lsp-activate-on "jsonnet")
+  :priority -1
+  :major-modes '(jsonnet-mode)
+  :server-id 'jsonnet-lsp))
+
+(lsp-consistency-check lsp-jsonnet)
+
+(provide 'lsp-jsonnet)
+;;; lsp-jsonnet.el ends here

docs/lsp-clients.json

@@ -442,6 +442,15 @@
     "lsp-install-server": "json-ls",
     "debugger": "Not available"
   },
+  {
+    "name": "jsonnet",
+    "full-name": "Jsonnet",
+    "server-name": "jsonnet-language-server",
+    "server-url": "https://github.com/grafana/jsonnet-language-server",
+    "installation-url": "https://github.com/grafana/jsonnet-language-server?tab=readme-ov-file#installation",
+    "lsp-install-server": "jsonnet-ls",
+    "debugger": "Not available"
+  },
   {
     "name": "julia",
     "full-name": "Julia",

lsp-mode.el

@@ -770,6 +770,7 @@ Changes take effect only when a new session is started."
     ("\\.java\\'" . "java")
     ("\\.js$" . "javascript")
     ("\\.json$" . "json")
+    ("\\.jsonnet$" . "jsonnet")
     ("\\.jsonc$" . "jsonc")
     ("\\.jsx$" . "javascriptreact")
     ("\\.jq$"  . "jq")

mkdocs.yml

@@ -93,6 +93,7 @@ nav:
     - JavaScript/TypeScript (theia-ide): page/lsp-typescript.md
     - JavaScript Flow: page/lsp-flow.md
     - Json: page/lsp-json.md
+    - Jsonnet: page/lsp-jsonnet.md
     - Julia: page/lsp-julia.md
     - Kotlin: page/lsp-kotlin.md
     - LanguageTool (LTEX): page/lsp-ltex.md