Annotate

util/pluginloader.lua @ 12025:6ed7fd28f5e3

net.resolvers: Report when hostname fails IDNA Not a particularly user-friendly error message, but better than "unable to resolve service" and having no clue where it came from.
author Kim Alvefur <zash@zash.se>
date Tue, 07 Dec 2021 21:43:36 +0100
parent 11131:40abef01f4b9
child 12250:e157e5c79daa
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8 -- luacheck: ignore 113/CFG_PLUGINDIR
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9
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10 local dir_sep, path_sep = package.config:match("^(%S+)%s(%S+)");
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11 local lua_version = _VERSION:match(" (.+)$");
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12 local plugin_dir = {};
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13 for path in (CFG_PLUGINDIR or "./plugins/"):gsub("[/\\]", dir_sep):gmatch("[^"..path_sep.."]+") do
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14 path = path..dir_sep; -- add path separator to path end
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15 path = path:gsub(dir_sep..dir_sep.."+", dir_sep); -- coalesce multiple separaters
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16 plugin_dir[#plugin_dir + 1] = path;
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17 end
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18
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19 local io_open = io.open;
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20 local envload = require "util.envload".envload;
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22 local function load_file(names)
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23 local file, err, path;
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24 for i=1,#plugin_dir do
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25 for j=1,#names do
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26 path = plugin_dir[i]..names[j];
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27 file, err = io_open(path);
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28 if file then
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29 local content = file:read("*a");
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30 file:close();
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31 return content, path;
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32 end
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33 end
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34 end
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35 return file, err;
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36 end
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37
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38 local function load_resource(plugin, resource)
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39 resource = resource or "mod_"..plugin..".lua";
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40 local names = {
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41 "mod_"..plugin..dir_sep..plugin..dir_sep..resource; -- mod_hello/hello/mod_hello.lua
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42 "mod_"..plugin..dir_sep..resource; -- mod_hello/mod_hello.lua
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43 plugin..dir_sep..resource; -- hello/mod_hello.lua
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44 resource; -- mod_hello.lua
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45 "share"..dir_sep.."lua"..dir_sep..lua_version..dir_sep..resource;
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46 "share"..dir_sep.."lua"..dir_sep..lua_version..dir_sep.."mod_"..plugin..dir_sep..resource;
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47 };
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48
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49 return load_file(names);
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50 end
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51
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52 local function load_code(plugin, resource, env)
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53 local content, err = load_resource(plugin, resource);
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54 if not content then return content, err; end
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55 local path = err;
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56 local f, err = envload(content, "@"..path, env);
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57 if not f then return f, err; end
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58 return f, path;
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59 end
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60
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61 local function load_code_ext(plugin, resource, extension, env)
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62 local content, err = load_resource(plugin, resource.."."..extension);
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63 if not content and extension == "lib.lua" then
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64 content, err = load_resource(plugin, resource..".lua");
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65 end
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66 if not content then
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67 content, err = load_resource(resource, resource.."."..extension);
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68 if not content then
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69 return content, err;
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70 end
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71 end
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72 local path = err;
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73 local f, err = envload(content, "@"..path, env);
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74 if not f then return f, err; end
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75 return f, path;
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76 end
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77
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78 return {
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79 load_file = load_file;
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80 load_resource = load_resource;
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81 load_code = load_code;
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82 load_code_ext = load_code_ext;
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83 };