prosody
26327eac56dc
util/pluginloader.lua

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util/pluginloader.lua @ 13238:26327eac56dc

util.datamanager: Always reset index after list shift Shifting the index does not work reliably yet, better to rebuild it from scratch. Since there is minimal parsing involved in that, it should be more efficient anyway.
author Kim Alvefur <zash@zash.se>
date Sat, 22 Jul 2023 14:02:01 +0200
parent 12975:d10957394a3c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 separators
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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 "prosody.util.envload".envload;
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21
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22 local pluginloader_methods = {};
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23 local pluginloader_mt = { __index = pluginloader_methods };
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24
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25 function pluginloader_methods:load_file(names)
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26 local file, err, path;
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27 local load_filter_cb = self._options.load_filter_cb;
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28 for i=1,#plugin_dir do
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29 for j=1,#names do
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30 path = plugin_dir[i]..names[j];
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31 file, err = io_open(path);
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32 if file then
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33 local content = file:read("*a");
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34 file:close();
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35 local metadata;
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36 if load_filter_cb then
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37 path, content, metadata = load_filter_cb(path, content);
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38 end
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39 if content and path then
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40 return content, path, metadata;
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41 end
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42 end
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43 end
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44 end
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45 return file, err;
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46 end
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47
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48 function pluginloader_methods:load_resource(plugin, resource)
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49 resource = resource or "mod_"..plugin..".lua";
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50 local names = {
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51 "mod_"..plugin..dir_sep..plugin..dir_sep..resource; -- mod_hello/hello/mod_hello.lua
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52 "mod_"..plugin..dir_sep..resource; -- mod_hello/mod_hello.lua
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53 plugin..dir_sep..resource; -- hello/mod_hello.lua
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54 resource; -- mod_hello.lua
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55 "share"..dir_sep.."lua"..dir_sep..lua_version..dir_sep..resource;
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56 "share"..dir_sep.."lua"..dir_sep..lua_version..dir_sep.."mod_"..plugin..dir_sep..resource;
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57 };
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58
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59 return self:load_file(names);
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60 end
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61
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62 function pluginloader_methods:load_code(plugin, resource, env)
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63 local content, err, metadata = self:load_resource(plugin, resource);
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64 if not content then return content, err; end
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65 local path = err;
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66 local f, err = envload(content, "@"..path, env);
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67 if not f then return f, err; end
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68 return f, path, metadata;
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69 end
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70
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71 function pluginloader_methods:load_code_ext(plugin, resource, extension, env)
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72 local content, err, metadata = self:load_resource(plugin, resource.."."..extension);
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73 if not content and extension == "lib.lua" then
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74 content, err, metadata = self:load_resource(plugin, resource..".lua");
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75 end
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76 if not content then
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77 content, err, metadata = self:load_resource(resource, resource.."."..extension);
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78 if not content then
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79 return content, err;
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80 end
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81 end
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82 local path = err;
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83 local f, err = envload(content, "@"..path, env);
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84 if not f then return f, err; end
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85 return f, path, metadata;
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86 end
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87
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88 local function init(options)
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89 return setmetatable({
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90 _options = options or {};
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91 }, pluginloader_mt);
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92 end
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93
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94 local function bind(self, method)
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95 return function (...)
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96 return method(self, ...);
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97 end;
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98 end
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99
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100 local default_loader = init();
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101
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102 return {
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103 load_file = bind(default_loader, default_loader.load_file);
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104 load_resource = bind(default_loader, default_loader.load_resource);
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105 load_code = bind(default_loader, default_loader.load_code);
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106 load_code_ext = bind(default_loader, default_loader.load_code_ext);
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107
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108 init = init;
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109 };