prosody
4ba6940deed0
util/pluginloader.lua

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util/pluginloader.lua @ 5045:4ba6940deed0

util.datamanager: Use pposix.fallocate() to make sure appends succeed. Also add a fallback fallocate()
author Kim Alvefur <zash@zash.se>
date Sat, 28 Jul 2012 22:37:24 +0200
parent 5021:85b2689dbcfe
child 5072:586c9106a106
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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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17 local io_open, os_time = io.open, os.time;
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18 local loadstring, pairs = loadstring, pairs;
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19 local envload = require "util.envload".envload;
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20
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21 module "pluginloader"
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23 local function load_file(names)
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24 local file, err, path;
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25 for i=1,#plugin_dir do
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26 for j=1,#names do
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27 path = plugin_dir[i]..names[j];
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28 file, err = io_open(path);
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29 if file then
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30 local content = file:read("*a");
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31 file:close();
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32 return content, path;
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33 end
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34 end
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35 end
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36 return file, err;
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37 end
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38
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39 function load_resource(plugin, resource)
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40 resource = resource or "mod_"..plugin..".lua";
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42 local names = {
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43 "mod_"..plugin.."/"..plugin.."/"..resource; -- mod_hello/hello/mod_hello.lua
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44 "mod_"..plugin.."/"..resource; -- mod_hello/mod_hello.lua
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45 plugin.."/"..resource; -- hello/mod_hello.lua
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46 resource; -- mod_hello.lua
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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 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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61 return _M;