prosody
93cdd1ece689
tools/migration/prosody-migrator.lua

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tools/migration/prosody-migrator.lua @ 11047:93cdd1ece689

mod_posix: Remove ancient undocumented user switching User switching has been done by prosodyctl or init scripts for a very long time now, so this is not needed. Using this would not have worked with module reloading (e.g. to reload certificates) since ports are closed and re-bound, which would then not be allowed. Today there exists better ways to grant low ports, i.e. capabilities(7) <Zash> Why do we have this? <MattJ> Remove it
author Kim Alvefur <zash@zash.se>
date Mon, 24 Aug 2020 19:48:47 +0200
parent 10004:e057e8318130
child 11728:826d57c16d1c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env lua
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2
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3 CFG_SOURCEDIR=CFG_SOURCEDIR or os.getenv("PROSODY_SRCDIR");
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4 CFG_CONFIGDIR=CFG_CONFIGDIR or os.getenv("PROSODY_CFGDIR");
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5 CFG_PLUGINDIR=CFG_PLUGINDIR or os.getenv("PROSODY_PLUGINDIR");
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6 CFG_DATADIR=CFG_DATADIR or os.getenv("PROSODY_DATADIR");
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7
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8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
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9
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10 local function is_relative(path)
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11 local path_sep = package.config:sub(1,1);
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12 return ((path_sep == "/" and path:sub(1,1) ~= "/")
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13 or (path_sep == "\\" and (path:sub(1,1) ~= "/" and path:sub(2,3) ~= ":\\")))
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14 end
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15
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16 -- Tell Lua where to find our libraries
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17 if CFG_SOURCEDIR then
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18 local function filter_relative_paths(path)
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19 if is_relative(path) then return ""; end
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20 end
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21 local function sanitise_paths(paths)
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22 return (paths:gsub("[^;]+;?", filter_relative_paths):gsub(";;+", ";"));
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23 end
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24 package.path = sanitise_paths(CFG_SOURCEDIR.."/?.lua;"..package.path);
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25 package.cpath = sanitise_paths(CFG_SOURCEDIR.."/?.so;"..package.cpath);
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26 end
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27
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28 -- Substitute ~ with path to home directory in data path
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29 if CFG_DATADIR then
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30 if os.getenv("HOME") then
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31 CFG_DATADIR = CFG_DATADIR:gsub("^~", os.getenv("HOME"));
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32 end
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33 end
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34
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35 local default_config = (CFG_CONFIGDIR or ".").."/migrator.cfg.lua";
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36
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37 local startup = require "util.startup";
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38 startup.prosodyctl();
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39 -- TODO startup.migrator ?
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40
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41 -- Command-line parsing
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42 local options = {};
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43 local i = 1;
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44 while arg[i] do
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45 if arg[i]:sub(1,2) == "--" then
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46 local opt, val = arg[i]:match("([%w-]+)=?(.*)");
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47 if opt then
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48 options[(opt:sub(3):gsub("%-", "_"))] = #val > 0 and val or true;
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49 end
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50 table.remove(arg, i);
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51 else
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52 i = i + 1;
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53 end
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54 end
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55
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56
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57 local envloadfile = require "util.envload".envloadfile;
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58
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59 local config_file = options.config or default_config;
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60 local from_store = arg[1] or "input";
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61 local to_store = arg[2] or "output";
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62
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63 config = {};
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64 local config_env = setmetatable({}, { __index = function(t, k) return function(tbl) config[k] = tbl; end; end });
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65 local config_chunk, err = envloadfile(config_file, config_env);
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66 if not config_chunk then
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67 print("There was an error loading the config file, check that the file exists");
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68 print("and that the syntax is correct:");
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69 print("", err);
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70 os.exit(1);
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71 end
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72
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73 config_chunk();
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74
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75 local have_err;
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76 if #arg > 0 and #arg ~= 2 then
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77 have_err = true;
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78 print("Error: Incorrect number of parameters supplied.");
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79 end
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80 if not config[from_store] then
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81 have_err = true;
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82 print("Error: Input store '"..from_store.."' not found in the config file.");
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83 end
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84 if not config[to_store] then
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85 have_err = true;
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86 print("Error: Output store '"..to_store.."' not found in the config file.");
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87 end
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88
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89 for store, conf in pairs(config) do -- COMPAT
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90 if conf.type == "prosody_files" then
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91 conf.type = "internal";
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92 elseif conf.type == "prosody_sql" then
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93 conf.type = "sql";
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94 end
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95 end
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96
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97 if have_err then
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98 print("");
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99 print("Usage: "..arg[0].." FROM_STORE TO_STORE");
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100 print("If no stores are specified, 'input' and 'output' are used.");
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101 print("");
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102 print("The available stores in your migrator config are:");
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103 print("");
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104 for store in pairs(config) do
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105 print("", store);
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106 end
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107 print("");
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108 os.exit(1);
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109 end
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110
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111 local async = require "util.async";
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112 local server = require "net.server";
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113 local watchers = {
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114 error = function (_, err)
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115 error(err);
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116 end;
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117 waiting = function ()
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118 server.loop();
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119 end;
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120 };
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121
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122 local cm = require "core.configmanager";
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123 local hm = require "core.hostmanager";
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124 local sm = require "core.storagemanager";
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125 local um = require "core.usermanager";
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126
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127 local function users(store, host)
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128 if store.users then
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129 return store:users();
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130 else
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131 return um.users(host);
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132 end
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133 end
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134
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135 local function prepare_config(host, conf)
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136 if conf.type == "internal" then
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137 sm.olddm.set_data_path(conf.path or prosody.paths.data);
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138 elseif conf.type == "sql" then
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139 cm.set(host, "sql", conf);
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140 end
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141 end
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142
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143 local function get_driver(host, conf)
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144 prepare_config(host, conf);
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145 return assert(sm.load_driver(host, conf.type));
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146 end
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147
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148 local migration_runner = async.runner(function (job)
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149 for host, stores in pairs(job.input.hosts) do
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150 prosody.hosts[host] = startup.make_host(host);
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151 sm.initialize_host(host);
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152 um.initialize_host(host);
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153
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154 local input_driver = get_driver(host, job.input);
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155
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156 local output_driver = get_driver(host, job.output);
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157
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158 for _, store in ipairs(stores) do
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159 local p, typ = store:match("()%-(%w+)$");
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160 if typ then store = store:sub(1, p-1); else typ = "keyval"; end
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161 log("info", "Migrating host %s store %s (%s)", host, store, typ);
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162
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163 local origin = assert(input_driver:open(store, typ));
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164 local destination = assert(output_driver:open(store, typ));
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165
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166 if typ == "keyval" then -- host data
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167 local data, err = origin:get(nil);
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168 assert(not err, err);
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169 assert(destination:set(nil, data));
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170 end
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171
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172 for user in users(origin, host) do
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173 if typ == "keyval" then
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174 local data, err = origin:get(user);
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175 assert(not err, err);
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176 assert(destination:set(user, data));
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177 elseif typ == "archive" then
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178 local iter, err = origin:find(user);
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179 assert(iter, err);
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180 for id, item, when, with in iter do
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181 assert(destination:append(user, id, item, when, with));
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182 end
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183 else
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184 error("Don't know how to migrate data of type '"..typ.."'.");
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185 end
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186 end
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187 end
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188 end
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189 end, watchers);
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190
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191 io.stderr:write("Migrating...\n");
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192
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193 migration_runner:run({ input = config[from_store], output = config[to_store] });
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194
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195 io.stderr:write("Done!\n");