feat: more sophisticated method to get copilot path (zbirenbaum#78)

* feat: more sophisticated method to get copilot path

* fix: use `nvim_get_runtime_file` to find copilot

Author: rockofox

README.md

@@ -109,7 +109,6 @@ require('copilot').setup({
     ["."] = false,
   },
   copilot_node_command = 'node', -- Node version must be < 18
-  plugin_manager_path = vim.fn.stdpath("data") .. "/site/pack/packer",
   server_opts_overrides = {},
 })
 ```
@@ -201,18 +200,6 @@ Example:
 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.
-
-Example:
-
-```lua
-require("copilot").setup {
-  plugin_manager_path = vim.fn.stdpath("data") .. "/site/pack/packer", 
-}
-```
-
 ### server_opts_overrides
 
 Override copilot lsp client settings. The `settings` field is where you can set the values of the options defined in [SettingsOpts.md](./SettingsOpts.md).

lua/copilot/client.lua

@@ -47,7 +47,7 @@ M.merge_server_opts = function(params)
   return vim.tbl_deep_extend("force", {
     cmd = {
       params.copilot_node_command,
-      require("copilot.util").get_copilot_path(params.plugin_manager_path),
+      require("copilot.util").get_copilot_path(),
     },
     cmd_cwd = vim.fn.expand("~"),
     root_dir = vim.loop.cwd(),

lua/copilot/init.lua

@@ -29,7 +29,6 @@ local defaults = {
   ft_disable = nil,
   filetypes = {},
   copilot_node_command = "node",
-  plugin_manager_path = vim.fn.stdpath("data") .. "/site/pack/packer",
   server_opts_overrides = {},
 }
 

lua/copilot/util.lua

@@ -229,12 +229,12 @@ function M.get_editor_configuration()
   }
 end
 
-M.get_copilot_path = function(plugin_path)
-  for _, loc in ipairs({ "/opt", "/start", "" }) do
-    local copilot_path = plugin_path .. loc .. "/copilot.lua/copilot/index.js"
-    if vim.fn.filereadable(copilot_path) ~= 0 then
-      return copilot_path
-    end
+M.get_copilot_path = function()
+  local copilot_path = vim.api.nvim_get_runtime_file('copilot/index.js', false)[1]
+  if vim.fn.filereadable(copilot_path) ~= 0 then
+    return copilot_path
+  else
+    print("[Copilot] could not read" .. copilot_path)  
   end
 end