prosody
39483b4099b4
tools/migration/prosody-migrator.lua

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tools/migration/prosody-migrator.lua @ 12166:39483b4099b4

migrator: Add option to keep going despite errors
author Kim Alvefur <zash@zash.se>
date Sun, 09 Jan 2022 16:08:15 +0100
parent 12165:79a51a48bdaf
child 12167:03f551510b1e
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 function usage()
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38 print("Usage: " .. arg[0] .. " [OPTIONS] FROM_STORE TO_STORE");
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39 print(" --config FILE Specify config file")
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40 print(" --keep-going Keep going in case of errors");
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41 print(" -v, --verbose Incease log-level");
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42 print("");
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43 print("If no stores are specified, 'input' and 'output' are used.");
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44 end
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45
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46 local startup = require "util.startup";
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47 do
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48 startup.parse_args({
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49 short_params = { v = "verbose", h = "help", ["?"] = "help" };
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50 value_params = { config = true };
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51 });
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52 startup.init_global_state();
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53 prosody.process_type = "migrator";
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54 if prosody.opts.help then
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55 usage();
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56 os.exit(0);
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57 end
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58 startup.force_console_logging();
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59 startup.init_logging();
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60 startup.init_gc();
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61 startup.init_errors();
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62 startup.setup_plugindir();
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63 startup.setup_plugin_install_path();
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64 startup.setup_datadir();
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65 startup.chdir();
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66 startup.read_version();
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67 startup.switch_user();
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68 startup.check_dependencies();
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69 startup.log_startup_warnings();
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70 prosody.config_loaded = true;
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71 startup.load_libraries();
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72 startup.init_http_client();
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73 prosody.core_post_stanza = function ()
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74 -- silence assert in core.moduleapi
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75 error("Attempt to send stanzas from inside migrator.", 0);
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76 end
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77 end
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78
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79 -- Command-line parsing
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80 local options = prosody.opts;
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81
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82 local envloadfile = require "util.envload".envloadfile;
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83
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84 local config_file = options.config or default_config;
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85 local from_store = arg[1] or "input";
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86 local to_store = arg[2] or "output";
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87
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88 config = {};
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89 local config_env = setmetatable({}, { __index = function(t, k) return function(tbl) config[k] = tbl; end; end });
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90 local config_chunk, err = envloadfile(config_file, config_env);
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91 if not config_chunk then
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92 print("There was an error loading the config file, check that the file exists");
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93 print("and that the syntax is correct:");
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94 print("", err);
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95 os.exit(1);
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96 end
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97
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98 config_chunk();
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99
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100 local have_err;
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101 if #arg > 0 and #arg ~= 2 then
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102 have_err = true;
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103 print("Error: Incorrect number of parameters supplied.");
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104 end
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105 if not config[from_store] then
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106 have_err = true;
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107 print("Error: Input store '"..from_store.."' not found in the config file.");
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108 end
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109 if not config[to_store] then
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110 have_err = true;
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111 print("Error: Output store '"..to_store.."' not found in the config file.");
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112 end
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113
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114 for store, conf in pairs(config) do -- COMPAT
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115 if conf.type == "prosody_files" then
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116 conf.type = "internal";
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117 elseif conf.type == "prosody_sql" then
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118 conf.type = "sql";
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119 end
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120 end
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121
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122 if have_err then
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123 print("");
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124 usage();
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125 print("");
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126 print("The available stores in your migrator config are:");
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127 print("");
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128 for store in pairs(config) do
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129 print("", store);
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130 end
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131 print("");
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132 os.exit(1);
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133 end
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134
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135 local async = require "util.async";
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136 local server = require "net.server";
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137 local watchers = {
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138 error = function (_, err)
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139 error(err);
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140 end;
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141 waiting = function ()
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142 server.loop();
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143 end;
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144 };
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145
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146 local cm = require "core.configmanager";
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147 local hm = require "core.hostmanager";
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148 local sm = require "core.storagemanager";
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149 local um = require "core.usermanager";
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150
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151 local function users(store, host)
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152 if store.users then
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153 return store:users();
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154 else
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155 return um.users(host);
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156 end
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157 end
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158
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159 local function prepare_config(host, conf)
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160 if conf.type == "internal" then
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161 sm.olddm.set_data_path(conf.path or prosody.paths.data);
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162 elseif conf.type == "sql" then
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163 cm.set(host, "sql", conf);
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164 end
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165 end
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166
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167 local function get_driver(host, conf)
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168 prepare_config(host, conf);
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169 return assert(sm.load_driver(host, conf.type));
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170 end
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171
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172 local migrate_once = {
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173 keyval = function(origin, destination, user)
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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 end;
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178 archive = function(origin, destination, user)
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179 local iter, err = origin:find(user);
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180 assert(iter, err);
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181 for id, item, when, with in iter do
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182 assert(destination:append(user, id, item, when, with));
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183 end
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184 end;
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185 }
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186
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187 if options["keep-going"] then
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188 local xpcall = require "util.xpcall".xpcall;
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189 local function log_err(err)
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190 log("error", "Error migrating data: %s", err);
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191 log("debug", "%s", debug.traceback());
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192 end
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193 for t, f in pairs(migrate_once) do
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194 migrate_once[t] = function (origin, destination, user)
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195 xpcall(f, log_err, origin, destination, user);
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196 end
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197 end
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198 end
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199
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200 local migration_runner = async.runner(function (job)
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201 for host, stores in pairs(job.input.hosts) do
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202 prosody.hosts[host] = startup.make_host(host);
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203 sm.initialize_host(host);
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diff changeset
204 um.initialize_host(host);
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diff changeset
205
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206 local input_driver = get_driver(host, job.input);
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diff changeset
207
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208 local output_driver = get_driver(host, job.output);
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diff changeset
209
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diff changeset
210 for _, store in ipairs(stores) do
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diff changeset
211 local p, typ = store:match("()%-(%w+)$");
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diff changeset
212 if typ then store = store:sub(1, p-1); else typ = "keyval"; end
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diff changeset
213 log("info", "Migrating host %s store %s (%s)", host, store, typ);
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diff changeset
214
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diff changeset
215 local origin = assert(input_driver:open(store, typ));
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diff changeset
216 local destination = assert(output_driver:open(store, typ));
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diff changeset
217
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diff changeset
218 local migrate = assert(migrate_once[typ], "Unknown store type: "..typ);
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diff changeset
219
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diff changeset
220 migrate(origin, destination, nil); -- host data
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diff changeset
221
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diff changeset
222 for user in users(origin, host) do
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diff changeset
223 migrate(origin, destination, user);
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diff changeset
224 end
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225 end
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226 end
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diff changeset
227 end, watchers);
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diff changeset
228
4240
b3d9063aad4d tools/migration/prosody-migrator.lua: Add messages to show when migration is in progress
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diff changeset
229 io.stderr:write("Migrating...\n");
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diff changeset
230
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diff changeset
231 migration_runner:run({ input = config[from_store], output = config[to_store] });
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diff changeset
232
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diff changeset
233 io.stderr:write("Done!\n");