From e88413e22b6387e081358741ffffe639368bcd30 Mon Sep 17 00:00:00 2001
From: Matthew Wild <mwild1@gmail.com>
Date: Thu, 3 Feb 2022 12:53:19 +0000
Subject: util.pluginloader: Support for multiple pluginloader instances, and
 options

---
 util/debug.lua        |  2 +-
 util/pluginloader.lua | 38 ++++++++++++++++++++++++++++----------
 2 files changed, 29 insertions(+), 11 deletions(-)

(limited to 'util')

diff --git a/util/debug.lua b/util/debug.lua
index 4c924d40..20d49720 100644
--- a/util/debug.lua
+++ b/util/debug.lua
@@ -31,7 +31,7 @@ local function get_locals_table(thread, level)
 	for local_num = 1, math.huge do
 		local name, value;
 		if thread then
-			name, value = debug.getlocal(thread, level, local_num);
+			name, value = debug.getlocal(thread, level-1, local_num);
 		else
 			name, value = debug.getlocal(level+1, local_num);
 		end
diff --git a/util/pluginloader.lua b/util/pluginloader.lua
index 8e37ffc4..690eef85 100644
--- a/util/pluginloader.lua
+++ b/util/pluginloader.lua
@@ -19,7 +19,10 @@ end
 local io_open = io.open;
 local envload = require "util.envload".envload;
 
-local function load_file(names)
+local pluginloader_methods = {};
+local pluginloader_mt = { __index = pluginloader_methods };
+
+function pluginloader_methods:load_file(names)
 	local file, err, path;
 	for i=1,#plugin_dir do
 		for j=1,#names do
@@ -35,8 +38,7 @@ local function load_file(names)
 	return file, err;
 end
 
-local function load_resource(plugin, resource)
-	resource = resource or "mod_"..plugin..".lua";
+function pluginloader_methods:load_resource(plugin, resource)
 	local names = {
 		"mod_"..plugin..dir_sep..plugin..dir_sep..resource; -- mod_hello/hello/mod_hello.lua
 		"mod_"..plugin..dir_sep..resource;                  -- mod_hello/mod_hello.lua
@@ -46,10 +48,10 @@ local function load_resource(plugin, resource)
 		"share"..dir_sep.."lua"..dir_sep..lua_version..dir_sep.."mod_"..plugin..dir_sep..resource;
 	};
 
-	return load_file(names);
+	return self:load_file(names);
 end
 
-local function load_code(plugin, resource, env)
+function pluginloader_methods:load_code(plugin, resource, env)
 	local content, err = load_resource(plugin, resource);
 	if not content then return content, err; end
 	local path = err;
@@ -58,7 +60,7 @@ local function load_code(plugin, resource, env)
 	return f, path;
 end
 
-local function load_code_ext(plugin, resource, extension, env)
+function pluginloader_methods:load_code_ext(plugin, resource, extension, env)
 	local content, err = load_resource(plugin, resource.."."..extension);
 	if not content and extension == "lib.lua" then
 		content, err = load_resource(plugin, resource..".lua");
@@ -75,9 +77,25 @@ local function load_code_ext(plugin, resource, extension, env)
 	return f, path;
 end
 
+local function init(options)
+	return setmetatable({
+		_options = options or {};
+	}, pluginloader_mt);
+end
+
+local function bind(self, method)
+	return function (...)
+		return method(self, ...);
+	end;
+end
+
+local default_loader = init();
+
 return {
-	load_file = load_file;
-	load_resource = load_resource;
-	load_code = load_code;
-	load_code_ext = load_code_ext;
+	load_file = bind(default_loader, default_loader.load_file);
+	load_resource = bind(default_loader, default_loader.load_resource);
+	load_code = bind(default_loader, default_loader.load_code);
+	load_code_ext = bind(default_loader, default_loader.load_code_ext);
+
+	init = init;
 };
-- 
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