prosody
e9090966c803
core/configmanager.lua

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core/configmanager.lua @ 5524:e9090966c803

util.prosodyctl: Initialize storagemanager on the host before initializing usermanager. This fixes brokenness when the auth provider opens the store on load (as they all do since eeea0eb2602a) (thanks nulani)
author Matthew Wild <mwild1@gmail.com>
date Sat, 27 Apr 2013 13:11:03 +0100
parent 5413:0bf5e90be086
child 5776:bd0ff8ae98a8
child 5811:27ae988f5b70
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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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b1885732e979 GPL->MIT!
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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 _G = _G;
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10 local setmetatable, rawget, rawset, io, error, dofile, type, pairs, table =
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11 setmetatable, rawget, rawset, io, error, dofile, type, pairs, table;
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12 local format, math_max = string.format, math.max;
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13
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14 local fire_event = prosody and prosody.events.fire_event or function () end;
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15
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16 local envload = require"util.envload".envload;
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17 local lfs = require "lfs";
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18 local path_sep = package.config:sub(1,1);
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19
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20 module "configmanager"
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21
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22 local parsers = {};
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23
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24 local config_mt = { __index = function (t, k) return rawget(t, "*"); end};
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25 local config = setmetatable({ ["*"] = { } }, config_mt);
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26
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27 -- When host not found, use global
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28 local host_mt = { __index = function(_, k) return config["*"][k] end }
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29
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30 function getconfig()
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31 return config;
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32 end
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33
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34 function get(host, key, _oldkey)
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35 if key == "core" then
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36 key = _oldkey; -- COMPAT with code that still uses "core"
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37 end
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38 return config[host][key];
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39 end
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40 function _M.rawget(host, key, _oldkey)
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41 if key == "core" then
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42 key = _oldkey; -- COMPAT with code that still uses "core"
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43 end
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44 local hostconfig = rawget(config, host);
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45 if hostconfig then
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46 return rawget(hostconfig, key);
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47 end
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48 end
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49
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50 local function set(config, host, key, value)
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51 if host and key then
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52 local hostconfig = rawget(config, host);
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53 if not hostconfig then
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54 hostconfig = rawset(config, host, setmetatable({}, host_mt))[host];
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55 end
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56 hostconfig[key] = value;
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57 return true;
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58 end
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59 return false;
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60 end
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61
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62 function _M.set(host, key, value, _oldvalue)
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63 if key == "core" then
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64 key, value = value, _oldvalue; --COMPAT with code that still uses "core"
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65 end
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66 return set(config, host, key, value);
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67 end
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68
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69 -- Helper function to resolve relative paths (needed by config)
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70 do
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71 function resolve_relative_path(parent_path, path)
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72 if path then
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73 -- Some normalization
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74 parent_path = parent_path:gsub("%"..path_sep.."+$", "");
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75 path = path:gsub("^%.%"..path_sep.."+", "");
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76
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77 local is_relative;
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78 if path_sep == "/" and path:sub(1,1) ~= "/" then
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79 is_relative = true;
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80 elseif path_sep == "\\" and (path:sub(1,1) ~= "/" and (path:sub(2,3) ~= ":\\" or path:sub(2,3) ~= ":/")) then
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81 is_relative = true;
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82 end
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83 if is_relative then
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84 return parent_path..path_sep..path;
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85 end
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86 end
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87 return path;
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88 end
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89 end
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90
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91 -- Helper function to convert a glob to a Lua pattern
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92 local function glob_to_pattern(glob)
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93 return "^"..glob:gsub("[%p*?]", function (c)
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94 if c == "*" then
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95 return ".*";
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96 elseif c == "?" then
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97 return ".";
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98 else
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99 return "%"..c;
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100 end
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101 end).."$";
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102 end
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103
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104 function load(filename, format)
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105 format = format or filename:match("%w+$");
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106
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107 if parsers[format] and parsers[format].load then
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108 local f, err = io.open(filename);
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109 if f then
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110 local new_config = setmetatable({ ["*"] = { } }, config_mt);
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111 local ok, err = parsers[format].load(f:read("*a"), filename, new_config);
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112 f:close();
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113 if ok then
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114 config = new_config;
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115 fire_event("config-reloaded", {
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116 filename = filename,
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117 format = format,
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118 config = config
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119 });
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120 end
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121 return ok, "parser", err;
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122 end
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123 return f, "file", err;
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124 end
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125
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126 if not format then
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127 return nil, "file", "no parser specified";
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128 else
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129 return nil, "file", "no parser for "..(format);
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130 end
371
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131 end
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132
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133 function save(filename, format)
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134 end
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135
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136 function addparser(format, parser)
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137 if format and parser then
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138 parsers[format] = parser;
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139 end
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140 end
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141
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142 -- _M needed to avoid name clash with local 'parsers'
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143 function _M.parsers()
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144 local p = {};
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145 for format in pairs(parsers) do
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146 table.insert(p, format);
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147 end
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148 return p;
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149 end
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150
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151 -- Built-in Lua parser
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152 do
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153 local pcall, setmetatable = _G.pcall, _G.setmetatable;
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154 local rawget = _G.rawget;
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155 parsers.lua = {};
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156 function parsers.lua.load(data, config_file, config)
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157 local env;
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158 -- The ' = true' are needed so as not to set off __newindex when we assign the functions below
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159 env = setmetatable({
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160 Host = true, host = true, VirtualHost = true,
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161 Component = true, component = true,
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162 Include = true, include = true, RunScript = true }, {
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163 __index = function (t, k)
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164 return rawget(_G, k);
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165 end,
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166 __newindex = function (t, k, v)
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167 set(config, env.__currenthost or "*", k, v);
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168 end
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169 });
371
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170
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171 rawset(env, "__currenthost", "*") -- Default is global
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172 function env.VirtualHost(name)
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173 if rawget(config, name) and rawget(config[name], "component_module") then
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174 error(format("Host %q clashes with previously defined %s Component %q, for services use a sub-domain like conference.%s",
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175 name, config[name].component_module:gsub("^%a+$", { component = "external", muc = "MUC"}), name, name), 0);
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176 end
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177 rawset(env, "__currenthost", name);
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178 -- Needs at least one setting to logically exist :)
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179 set(config, name or "*", "defined", true);
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180 return function (config_options)
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181 rawset(env, "__currenthost", "*"); -- Return to global scope
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182 for option_name, option_value in pairs(config_options) do
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183 set(config, name or "*", option_name, option_value);
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184 end
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185 end;
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186 end
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187 env.Host, env.host = env.VirtualHost, env.VirtualHost;
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188
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189 function env.Component(name)
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190 if rawget(config, name) and rawget(config[name], "defined") and not rawget(config[name], "component_module") then
2861
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191 error(format("Component %q clashes with previously defined Host %q, for services use a sub-domain like conference.%s",
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192 name, name, name), 0);
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193 end
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194 set(config, name, "component_module", "component");
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195 -- Don't load the global modules by default
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196 set(config, name, "load_global_modules", false);
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197 rawset(env, "__currenthost", name);
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198 local function handle_config_options(config_options)
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diff changeset
199 rawset(env, "__currenthost", "*"); -- Return to global scope
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200 for option_name, option_value in pairs(config_options) do
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201 set(config, name or "*", option_name, option_value);
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202 end
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203 end
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diff changeset
204
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205 return function (module)
857
49298263f241 core.configmanager: Small fix to check validity of Component definitions
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diff changeset
206 if type(module) == "string" then
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207 set(config, name, "component_module", module);
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208 return handle_config_options;
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diff changeset
209 end
3515
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diff changeset
210 return handle_config_options(module);
750
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diff changeset
211 end
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diff changeset
212 end
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diff changeset
213 env.component = env.Component;
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214
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215 function env.Include(file)
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216 if file:match("[*?]") then
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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diff changeset
217 local path_pos, glob = file:match("()([^"..path_sep.."]+)$");
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diff changeset
218 local path = file:sub(1, math_max(path_pos-2,0));
3929
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219 local config_path = config_file:gsub("[^"..path_sep.."]+$", "");
3905
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diff changeset
220 if #path > 0 then
3929
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diff changeset
221 path = resolve_relative_path(config_path, path);
3905
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diff changeset
222 else
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223 path = config_path;
3905
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diff changeset
224 end
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diff changeset
225 local patt = glob_to_pattern(glob);
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diff changeset
226 for f in lfs.dir(path) do
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diff changeset
227 if f:sub(1,1) ~= "." and f:match(patt) then
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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diff changeset
228 env.Include(path..path_sep..f);
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229 end
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230 end
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diff changeset
231 else
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diff changeset
232 local file = resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file);
3905
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233 local f, err = io.open(file);
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diff changeset
234 if f then
5124
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diff changeset
235 local ret, err = parsers.lua.load(f:read("*a"), file, config);
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diff changeset
236 if not ret then error(err:gsub("%[string.-%]", file), 0); end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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diff changeset
237 end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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diff changeset
238 if not f then error("Error loading included "..file..": "..err, 0); end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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diff changeset
239 return f, err;
794
912dc389935a Add Include command to include extra configuration files from the main one
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parents: 793
diff changeset
240 end
912dc389935a Add Include command to include extra configuration files from the main one
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parents: 793
diff changeset
241 end
912dc389935a Add Include command to include extra configuration files from the main one
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parents: 793
diff changeset
242 env.include = env.Include;
912dc389935a Add Include command to include extra configuration files from the main one
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parents: 793
diff changeset
243
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diff changeset
244 function env.RunScript(file)
3905
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diff changeset
245 return dofile(resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file));
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diff changeset
246 end
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diff changeset
247
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diff changeset
248 local chunk, err = envload(data, "@"..config_file, env);
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parents:
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249
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250 if not chunk then
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251 return nil, err;
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252 end
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253
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254 local ok, err = pcall(chunk);
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parents:
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255
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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256 if not ok then
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257 return nil, err;
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258 end
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259
3613
f617718d2221 configmanager: Change parser API again to pass a config table to insert settings to. Fixes Include(). (Thanks Zash/answerman)
Matthew Wild <mwild1@gmail.com>
parents: 3610
diff changeset
260 return true;
371
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261 end
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
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262
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
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263 end
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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264
466
0ecfd89c2cc0 Fix for configmanager when config file can't be found
Matthew Wild <mwild1@gmail.com>
parents: 376
diff changeset
265 return _M;