prosody
7c954c75b6ac
core/configmanager.lua

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core/configmanager.lua @ 9319:7c954c75b6ac

net.server_epoll: Fix write signal handling in watchfd API The main loop calls :onwritable but here it was spelled :onwriteable
author Kim Alvefur <zash@zash.se>
date Sat, 15 Sep 2018 14:20:01 +0200
parent 9241:2d82a926826f
child 9874:c9f5ccdcdf80
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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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, os, error, dofile, type, pairs =
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11 setmetatable, rawget, rawset, io, os, error, dofile, type, pairs;
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12 local format, math_max = string.format, math.max;
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13
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14 local envload = require"util.envload".envload;
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15 local deps = require"util.dependencies";
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16 local resolve_relative_path = require"util.paths".resolve_relative_path;
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17 local glob_to_pattern = require"util.paths".glob_to_pattern;
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18 local path_sep = package.config:sub(1,1);
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19
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20 local encodings = deps.softreq"util.encodings";
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21 local nameprep = encodings and encodings.stringprep.nameprep or function (host) return host:lower(); end
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22
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23 local _M = {};
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24 local _ENV = nil;
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25 -- luacheck: std none
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26
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27 _M.resolve_relative_path = resolve_relative_path; -- COMPAT
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28
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29 local parser = nil;
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30
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31 local config_mt = { __index = function (t, _) return rawget(t, "*"); end};
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32 local config = setmetatable({ ["*"] = { } }, config_mt);
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33
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34 -- When host not found, use global
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35 local host_mt = { __index = function(_, k) return config["*"][k] end }
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36
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37 function _M.getconfig()
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38 return config;
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39 end
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40
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41 function _M.get(host, key, _oldkey)
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42 if key == "core" then
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43 key = _oldkey; -- COMPAT with code that still uses "core"
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44 end
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45 return config[host][key];
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46 end
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47 function _M.rawget(host, key, _oldkey)
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48 if key == "core" then
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49 key = _oldkey; -- COMPAT with code that still uses "core"
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50 end
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51 local hostconfig = rawget(config, host);
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52 if hostconfig then
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53 return rawget(hostconfig, key);
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54 end
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55 end
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56
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57 local function set(config_table, host, key, value)
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58 if host and key then
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59 local hostconfig = rawget(config_table, host);
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60 if not hostconfig then
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61 hostconfig = rawset(config_table, host, setmetatable({}, host_mt))[host];
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62 end
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63 hostconfig[key] = value;
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64 return true;
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65 end
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66 return false;
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67 end
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68
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69 function _M.set(host, key, value, _oldvalue)
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70 if key == "core" then
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71 key, value = value, _oldvalue; --COMPAT with code that still uses "core"
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72 end
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73 return set(config, host, key, value);
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74 end
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75
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76 function _M.load(filename, config_format)
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77 config_format = config_format or filename:match("%w+$");
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78
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79 if config_format == "lua" then
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80 local f, err = io.open(filename);
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81 if f then
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82 local new_config = setmetatable({ ["*"] = { } }, config_mt);
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83 local ok, err = parser.load(f:read("*a"), filename, new_config);
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84 f:close();
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85 if ok then
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86 config = new_config;
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87 end
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88 return ok, "parser", err;
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89 end
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90 return f, "file", err;
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91 end
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92
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93 if not config_format then
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94 return nil, "file", "no parser specified";
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95 else
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96 return nil, "file", "no parser for "..(config_format);
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97 end
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98 end
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99
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100 -- Built-in Lua parser
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101 do
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102 local pcall = _G.pcall;
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103 parser = {};
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104 function parser.load(data, config_file, config_table)
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105 local env;
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106 -- The ' = true' are needed so as not to set off __newindex when we assign the functions below
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107 env = setmetatable({
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108 Host = true, host = true, VirtualHost = true,
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109 Component = true, component = true,
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110 Include = true, include = true, RunScript = true }, {
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111 __index = function (_, k)
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112 if k:match("^ENV_") then
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113 return os.getenv(k:sub(5));
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114 end
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115 return rawget(_G, k);
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116 end,
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117 __newindex = function (_, k, v)
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118 set(config_table, env.__currenthost or "*", k, v);
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119 end
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120 });
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121
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122 rawset(env, "__currenthost", "*") -- Default is global
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123 function env.VirtualHost(name)
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124 name = nameprep(name);
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parents: 6715
diff changeset
125 if rawget(config_table, name) and rawget(config_table[name], "component_module") then
2861
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parents: 1777
diff changeset
126 error(format("Host %q clashes with previously defined %s Component %q, for services use a sub-domain like conference.%s",
6716
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127 name, config_table[name].component_module:gsub("^%a+$", { component = "external", muc = "MUC"}), name, name), 0);
2861
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parents: 1777
diff changeset
128 end
376
6d87944df37c New configmanager. Old-style config files still work, but will print a warning
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diff changeset
129 rawset(env, "__currenthost", name);
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130 -- Needs at least one setting to logically exist :)
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131 set(config_table, name or "*", "defined", true);
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132 return function (config_options)
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parents: 3384
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133 rawset(env, "__currenthost", "*"); -- Return to global scope
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parents: 3384
diff changeset
134 for option_name, option_value in pairs(config_options) do
6716
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parents: 6715
diff changeset
135 set(config_table, name or "*", option_name, option_value);
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parents: 3384
diff changeset
136 end
bb494c3aa364 configmanager: Allow VirtualHost/Component definitions to be followed by a table of config options
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137 end;
371
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parents:
diff changeset
138 end
3011
1189a29cd846 configmanager: Add VirtualHost as an alias for Host (re-applied in trunk due to previous bad merge with 0.7)
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
139 env.Host, env.host = env.VirtualHost, env.VirtualHost;
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diff changeset
140
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parents: 615
diff changeset
141 function env.Component(name)
6323
5926f01e5cd2 configmanager: nameprep VirtualHost and Component names
Matthew Wild <mwild1@gmail.com>
parents: 6166
diff changeset
142 name = nameprep(name);
7947
24170d74b00b core: Split some very long lines [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6779
diff changeset
143 if rawget(config_table, name) and rawget(config_table[name], "defined")
24170d74b00b core: Split some very long lines [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6779
diff changeset
144 and not rawget(config_table[name], "component_module") then
2861
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Matthew Wild <mwild1@gmail.com>
parents: 1777
diff changeset
145 error(format("Component %q clashes with previously defined Host %q, for services use a sub-domain like conference.%s",
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Matthew Wild <mwild1@gmail.com>
parents: 1777
diff changeset
146 name, name, name), 0);
1402615b66f8 configmanager: Error when a component and host clash hostnames
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parents: 1777
diff changeset
147 end
6716
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diff changeset
148 set(config_table, name, "component_module", "component");
913
3e2dac84017d core.configmanager: Make components use 'component' module by default if none specified
Matthew Wild <mwild1@gmail.com>
parents: 896
diff changeset
149 -- Don't load the global modules by default
6716
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parents: 6715
diff changeset
150 set(config_table, name, "load_global_modules", false);
913
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parents: 896
diff changeset
151 rawset(env, "__currenthost", name);
3515
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parents: 3384
diff changeset
152 local function handle_config_options(config_options)
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parents: 3384
diff changeset
153 rawset(env, "__currenthost", "*"); -- Return to global scope
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Matthew Wild <mwild1@gmail.com>
parents: 3384
diff changeset
154 for option_name, option_value in pairs(config_options) do
6716
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parents: 6715
diff changeset
155 set(config_table, name or "*", option_name, option_value);
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parents: 3384
diff changeset
156 end
bb494c3aa364 configmanager: Allow VirtualHost/Component definitions to be followed by a table of config options
Matthew Wild <mwild1@gmail.com>
parents: 3384
diff changeset
157 end
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diff changeset
158
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parents: 615
diff changeset
159 return function (module)
857
49298263f241 core.configmanager: Small fix to check validity of Component definitions
Matthew Wild <mwild1@gmail.com>
parents: 795
diff changeset
160 if type(module) == "string" then
6716
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parents: 6715
diff changeset
161 set(config_table, name, "component_module", module);
3515
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parents: 3384
diff changeset
162 return handle_config_options;
857
49298263f241 core.configmanager: Small fix to check validity of Component definitions
Matthew Wild <mwild1@gmail.com>
parents: 795
diff changeset
163 end
3515
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parents: 3384
diff changeset
164 return handle_config_options(module);
750
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parents: 615
diff changeset
165 end
fbfcf8c1c830 configmanager: Add support for defining components
Matthew Wild <mwild1@gmail.com>
parents: 615
diff changeset
166 end
fbfcf8c1c830 configmanager: Add support for defining components
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parents: 615
diff changeset
167 env.component = env.Component;
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diff changeset
168
5413
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Matthew Wild <mwild1@gmail.com>
parents: 5380
diff changeset
169 function env.Include(file)
6718
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parents: 6717
diff changeset
170 -- Check whether this is a wildcard Include
3905
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Matthew Wild <mwild1@gmail.com>
parents: 3780
diff changeset
171 if file:match("[*?]") then
6166
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
172 local lfs = deps.softreq "lfs";
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
173 if not lfs then
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
174 error(format("Error expanding wildcard pattern in Include %q - LuaFileSystem not available", file));
46cb87d531a7 configmanager: Delay importing LuaFileSystem until needed by an Include line
Kim Alvefur <zash@zash.se>
parents: 5811
diff changeset
175 end
3905
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
176 local path_pos, glob = file:match("()([^"..path_sep.."]+)$");
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
177 local path = file:sub(1, math_max(path_pos-2,0));
3929
7cb03d67101b configmanager: Filenames without a path are also relative to the config file path, not the current working directory
Matthew Wild <mwild1@gmail.com>
parents: 3905
diff changeset
178 local config_path = config_file:gsub("[^"..path_sep.."]+$", "");
3905
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parents: 3780
diff changeset
179 if #path > 0 then
3929
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parents: 3905
diff changeset
180 path = resolve_relative_path(config_path, path);
3905
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parents: 3780
diff changeset
181 else
3929
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parents: 3905
diff changeset
182 path = config_path;
3905
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parents: 3780
diff changeset
183 end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
Matthew Wild <mwild1@gmail.com>
parents: 3780
diff changeset
184 local patt = glob_to_pattern(glob);
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
185 for f in lfs.dir(path) do
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
186 if f:sub(1,1) ~= "." and f:match(patt) then
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
187 env.Include(path..path_sep..f);
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
188 end
9222dad9e1e8 configmanager: Support for wildcards in Include directives
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parents: 3780
diff changeset
189 end
6718
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parents: 6717
diff changeset
190 return;
794
912dc389935a Add Include command to include extra configuration files from the main one
Matthew Wild <mwild1@gmail.com>
parents: 793
diff changeset
191 end
6718
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parents: 6717
diff changeset
192 -- Not a wildcard, so resolve (potentially) relative path and run through config parser
be98ebe87eef configmanager: Refactor function to avoid re-declaring local variable [luacheck]
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parents: 6717
diff changeset
193 file = resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file);
be98ebe87eef configmanager: Refactor function to avoid re-declaring local variable [luacheck]
Matthew Wild <mwild1@gmail.com>
parents: 6717
diff changeset
194 local f, err = io.open(file);
be98ebe87eef configmanager: Refactor function to avoid re-declaring local variable [luacheck]
Matthew Wild <mwild1@gmail.com>
parents: 6717
diff changeset
195 if f then
8153
c22d5680ca68 configmanager: Remove support for multiple parsers, fixes #852.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 7947
diff changeset
196 local ret, err = parser.load(f:read("*a"), file, config_table);
6718
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parents: 6717
diff changeset
197 if not ret then error(err:gsub("%[string.-%]", file), 0); end
be98ebe87eef configmanager: Refactor function to avoid re-declaring local variable [luacheck]
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parents: 6717
diff changeset
198 end
be98ebe87eef configmanager: Refactor function to avoid re-declaring local variable [luacheck]
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parents: 6717
diff changeset
199 if not f then error("Error loading included "..file..": "..err, 0); end
be98ebe87eef configmanager: Refactor function to avoid re-declaring local variable [luacheck]
Matthew Wild <mwild1@gmail.com>
parents: 6717
diff changeset
200 return f, err;
794
912dc389935a Add Include command to include extra configuration files from the main one
Matthew Wild <mwild1@gmail.com>
parents: 793
diff changeset
201 end
912dc389935a Add Include command to include extra configuration files from the main one
Matthew Wild <mwild1@gmail.com>
parents: 793
diff changeset
202 env.include = env.Include;
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5413
diff changeset
203
3610
2084959d4096 configmanager: Update Include and RunScript directives to support paths relative to the (current!) config file
Matthew Wild <mwild1@gmail.com>
parents: 3609
diff changeset
204 function env.RunScript(file)
3905
9222dad9e1e8 configmanager: Support for wildcards in Include directives
Matthew Wild <mwild1@gmail.com>
parents: 3780
diff changeset
205 return dofile(resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file));
3610
2084959d4096 configmanager: Update Include and RunScript directives to support paths relative to the (current!) config file
Matthew Wild <mwild1@gmail.com>
parents: 3609
diff changeset
206 end
5776
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5413
diff changeset
207
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4530
diff changeset
208 local chunk, err = envload(data, "@"..config_file, env);
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parents: 5413
diff changeset
209
371
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
210 if not chunk then
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
211 return nil, err;
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
212 end
5776
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parents: 5413
diff changeset
213
371
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
214 local ok, err = pcall(chunk);
5776
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5413
diff changeset
215
371
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
216 if not ok then
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 return nil, err;
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
218 end
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parents: 5413
diff changeset
219
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
220 return true;
371
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
221 end
5776
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5413
diff changeset
222
371
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
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parents:
diff changeset
223 end
0dc5819660e8 Import initial configmanager, not sure if it works yet, but it does pass the unit tests ;)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224
466
0ecfd89c2cc0 Fix for configmanager when config file can't be found
Matthew Wild <mwild1@gmail.com>
parents: 376
diff changeset
225 return _M;