From 32d3ac849f178cc76a6d58b2a1100c31c9b8d4e6 Mon Sep 17 00:00:00 2001
From: Martin Larsson <larssonmartin1998@gmail.com>
Date: Thu, 8 May 2025 22:51:20 +0200
Subject: [PATCH] Add svelte support to neovim(lsp, ts)

---
 nix/pkgs/home.nix                   |  1 +
 nvim/lsp/svelte-language-server.lua | 22 ++++++++++++++++++++++
 nvim/lua/plugs/treesitter.lua       |  1 +
 3 files changed, 24 insertions(+)
 create mode 100644 nvim/lsp/svelte-language-server.lua

diff --git a/nix/pkgs/home.nix b/nix/pkgs/home.nix
index 2ec62f9..0a94fa5 100644
--- a/nix/pkgs/home.nix
+++ b/nix/pkgs/home.nix
@@ -119,6 +119,7 @@ in
       bottom
       bc
       cmatrix
+      svelte-language-server
     ];
 
     file = symlinkFiles;
diff --git a/nvim/lsp/svelte-language-server.lua b/nvim/lsp/svelte-language-server.lua
new file mode 100644
index 0000000..afdb9e3
--- /dev/null
+++ b/nvim/lsp/svelte-language-server.lua
@@ -0,0 +1,22 @@
+-- Helper function for the 'MigrateToSvelte5' LSP command.
+-- This function will be called by the user command created in on_attach.
+local function migrate_to_svelte_5_command(client)
+    client:exec_param({
+        command = "migrate_to_svelte_5",
+        arguments = { vim.uri_from_bufnr(vim.api.nvim_get_current_buf()) },
+    })
+end
+
+return {
+    cmd = { "svelteserver", "--stdio" },
+
+    filetypes = { "svelte" },
+
+    root_markers = { "package.json", ".git/" },
+    on_attach = function(client, bufnr)
+        local fn = function() migrate_to_svelte_5_command(client) end
+        vim.api.nvim_buf_create_user_command(bufnr, "SvelteMigrateToSvelte5", fn, {
+            desc = "Svelte: Migrate Component to Svelte 5 Syntax (via LSP).",
+        })
+    end,
+}
diff --git a/nvim/lua/plugs/treesitter.lua b/nvim/lua/plugs/treesitter.lua
index 04a099c..0e1351e 100644
--- a/nvim/lua/plugs/treesitter.lua
+++ b/nvim/lua/plugs/treesitter.lua
@@ -50,6 +50,7 @@ return {
                 "latex",
                 "typst",
                 "ruby",
+                "svelte",
             },
             sync_install = false,
             -- This can be updated to a list of languages instead of defaulting to true