prosody
f4c0fb54e16c
util/pluginloader.lua

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util/pluginloader.lua @ 7996:f4c0fb54e16c

util.datamanager: Remove check for file non-existence since ENOENT tells us that already
author Kim Alvefur <zash@zash.se>
date Wed, 22 Mar 2017 12:02:52 +0100
parent 7115:805d068d2fd5
child 8382:e5d00bf4a4d5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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9 local dir_sep, path_sep = package.config:match("^(%S+)%s(%S+)");
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10 local plugin_dir = {};
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11 for path in (CFG_PLUGINDIR or "./plugins/"):gsub("[/\\]", dir_sep):gmatch("[^"..path_sep.."]+") do
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12 path = path..dir_sep; -- add path separator to path end
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13 path = path:gsub(dir_sep..dir_sep.."+", dir_sep); -- coalesce multiple separaters
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14 plugin_dir[#plugin_dir + 1] = path;
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15 end
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16
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17 local io_open = io.open;
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18 local envload = require "util.envload".envload;
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20 local function load_file(names)
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21 local file, err, path;
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22 for i=1,#plugin_dir do
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23 for j=1,#names do
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24 path = plugin_dir[i]..names[j];
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25 file, err = io_open(path);
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26 if file then
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27 local content = file:read("*a");
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28 file:close();
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29 return content, path;
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30 end
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31 end
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32 end
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33 return file, err;
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34 end
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35
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36 local function load_resource(plugin, resource)
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37 resource = resource or "mod_"..plugin..".lua";
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39 local names = {
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40 "mod_"..plugin..dir_sep..plugin..dir_sep..resource; -- mod_hello/hello/mod_hello.lua
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41 "mod_"..plugin..dir_sep..resource; -- mod_hello/mod_hello.lua
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42 plugin..dir_sep..resource; -- hello/mod_hello.lua
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43 resource; -- mod_hello.lua
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44 };
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45
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46 return load_file(names);
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47 end
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49 local function load_code(plugin, resource, env)
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50 local content, err = load_resource(plugin, resource);
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51 if not content then return content, err; end
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52 local path = err;
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53 local f, err = envload(content, "@"..path, env);
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54 if not f then return f, err; end
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55 return f, path;
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56 end
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57
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58 local function load_code_ext(plugin, resource, extension, env)
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59 local content, err = load_resource(plugin, resource.."."..extension);
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60 if not content then
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61 content, err = load_resource(resource, resource.."."..extension);
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62 if not content then
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63 return content, err;
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64 end
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65 end
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66 local path = err;
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67 local f, err = envload(content, "@"..path, env);
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68 if not f then return f, err; end
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69 return f, path;
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70 end
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71
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72 return {
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73 load_file = load_file;
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74 load_resource = load_resource;
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75 load_code = load_code;
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76 load_code_ext = load_code_ext;
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77 };