add copilot_node_command to setup opts

Author: zbirenbaum

README.md

@@ -74,6 +74,7 @@ panel = { -- no config options yet
   enabled = true,
 },
 ft_disable = {},
+copilot_node_command = 'node', -- Node version must be < 18
 plugin_manager_path = vim.fn.stdpath("data") .. "/site/pack/packer",
 server_opts_overrides = {},
 ```
@@ -127,6 +128,16 @@ require("copilot").setup {
 }
 ```
 
+##### copilot_node_command
+
+Use this field to provide the path to a specific node version such as one installed by nvm. Node version must be < 18. The LTS version of node (16.17.0) is recommended.
+
+Example:
+
+```lua
+copilot_node_command = vim.fn.expand("$HOME") .. "/.config/nvm/versions/node/v16.14.2/bin/node", -- Node version must be < 18
+```
+
 ##### plugin_manager_path
 
 This is installation path of Packer, change this to the plugin manager installation path of your choice

lua/copilot/client.lua

@@ -21,7 +21,10 @@ end
 
 M.merge_server_opts = function (params)
   return vim.tbl_deep_extend("force", {
-    cmd = {'node', require("copilot.util").get_copilot_path(params.plugin_manager_path)},
+    cmd = {
+      params.copilot_node_command or "node",
+      require("copilot.util").get_copilot_path(params.plugin_manager_path)
+    },
     cmd_cwd = vim.fn.expand('~'),
     root_dir = vim.loop.cwd(),
     name = "copilot",

lua/copilot/init.lua

@@ -10,6 +10,7 @@ local defaults = {
     enabled = true,
   },
   ft_disable = {},
+  copilot_node_command = "node",
   plugin_manager_path = vim.fn.stdpath("data") .. "/site/pack/packer",
   server_opts_overrides = {},
 }