fix(volar): vendor tsserver (#485)

Closes #481.

1 files changed, 22 insertions, 1 deletions

diff --git a/lua/nvim-lsp-installer/servers/volar/init.lua b/lua/nvim-lsp-installer/servers/volar/init.lua
index 25721b6d..2be49183 100644
--- a/lua/nvim-lsp-installer/servers/volar/init.lua
+++ b/lua/nvim-lsp-installer/servers/volar/init.lua
@@ -1,15 +1,36 @@
+local path = require "nvim-lsp-installer.path"
+local fs = require "nvim-lsp-installer.fs"
 local server = require "nvim-lsp-installer.server"
 local npm = require "nvim-lsp-installer.installers.npm"
 
 return function(name, root_dir)
+    ---@param dir string
+    local function get_tsserverlib_path(dir)
+        return path.concat { dir, "node_modules", "typescript", "lib", "tsserverlibrary.js" }
+    end
+
+    ---@param workspace_dir string|nil
+    local function get_typescript_server_path(workspace_dir)
+        local local_tsserverlib = workspace_dir ~= nil and get_tsserverlib_path(workspace_dir)
+        local vendored_tsserverlib = get_tsserverlib_path(root_dir)
+        if local_tsserverlib and fs.file_exists(local_tsserverlib) then
+            return local_tsserverlib
+        else
+            return vendored_tsserverlib
+        end
+    end
+
     return server.Server:new {
         name = name,
         root_dir = root_dir,
         homepage = "https://github.com/johnsoncodehk/volar",
         languages = { "vue" },
-        installer = npm.packages { "@volar/server" },
+        installer = npm.packages { "@volar/server", "typescript" },
         default_options = {
             cmd_env = npm.env(root_dir),
+            on_new_config = function(new_config, new_root_dir)
+                new_config.init_options.typescript.serverPath = get_typescript_server_path(new_root_dir)
+            end,
         },
     }
 end