prosody
616c578c644f
util/pluginloader.lua

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util/pluginloader.lua @ 13228:616c578c644f

mod_storage_internal: Use integer option method for cache size Missed this one in previous sweep
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jul 2023 12:36:47 +0200
parent 12975:d10957394a3c
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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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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 };