prosody
826d57c16d1c
tools/migration/prosody-migrator.lua

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tools/migration/prosody-migrator.lua @ 11728:826d57c16d1c

migrator: Customise startup sequence to fix #1673 (Thanks acidsys) Diverge from util.startup.prosodyctl() in order to skip unneeded behavior, such as loading the *Prosody* config file, which we do not need here, based on the `--config` flag which should point at the migrator config file instead. Notably removed: * read_config() since this loads the Prosody config * check_unwriteable() which checks logfiles specified in the Prosody config, so not relevant * make_dummy_hosts() but the migrator sets up its own hosts during migration
author Kim Alvefur <zash@zash.se>
date Thu, 29 Jul 2021 13:47:26 +0200
parent 10004:e057e8318130
child 11729:f37cafeb75d6
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 do
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39 startup.parse_args();
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40 startup.init_global_state();
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41 prosody.process_type = "migrator";
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42 startup.force_console_logging();
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43 startup.init_logging();
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44 startup.init_gc();
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45 startup.init_errors();
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46 startup.setup_plugindir();
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47 startup.setup_plugin_install_path();
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48 startup.setup_datadir();
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49 startup.chdir();
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50 startup.read_version();
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51 startup.switch_user();
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52 startup.check_dependencies();
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53 startup.log_startup_warnings();
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54 startup.load_libraries();
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55 startup.init_http_client();
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56 end
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57
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58 -- Command-line parsing
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59 local options = {};
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60 local i = 1;
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61 while arg[i] do
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62 if arg[i]:sub(1,2) == "--" then
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63 local opt, val = arg[i]:match("([%w-]+)=?(.*)");
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64 if opt then
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65 options[(opt:sub(3):gsub("%-", "_"))] = #val > 0 and val or true;
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66 end
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67 table.remove(arg, i);
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68 else
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69 i = i + 1;
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70 end
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71 end
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72
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73
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74 local envloadfile = require "util.envload".envloadfile;
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75
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76 local config_file = options.config or default_config;
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77 local from_store = arg[1] or "input";
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78 local to_store = arg[2] or "output";
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79
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80 config = {};
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81 local config_env = setmetatable({}, { __index = function(t, k) return function(tbl) config[k] = tbl; end; end });
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82 local config_chunk, err = envloadfile(config_file, config_env);
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83 if not config_chunk then
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84 print("There was an error loading the config file, check that the file exists");
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85 print("and that the syntax is correct:");
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86 print("", err);
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87 os.exit(1);
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88 end
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89
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90 config_chunk();
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91
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92 local have_err;
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93 if #arg > 0 and #arg ~= 2 then
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94 have_err = true;
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95 print("Error: Incorrect number of parameters supplied.");
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96 end
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97 if not config[from_store] then
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98 have_err = true;
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99 print("Error: Input store '"..from_store.."' not found in the config file.");
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100 end
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101 if not config[to_store] then
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102 have_err = true;
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103 print("Error: Output store '"..to_store.."' not found in the config file.");
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104 end
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105
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106 for store, conf in pairs(config) do -- COMPAT
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107 if conf.type == "prosody_files" then
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108 conf.type = "internal";
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109 elseif conf.type == "prosody_sql" then
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110 conf.type = "sql";
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111 end
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112 end
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113
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114 if have_err then
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115 print("");
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116 print("Usage: "..arg[0].." FROM_STORE TO_STORE");
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117 print("If no stores are specified, 'input' and 'output' are used.");
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118 print("");
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119 print("The available stores in your migrator config are:");
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120 print("");
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121 for store in pairs(config) do
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122 print("", store);
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123 end
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124 print("");
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125 os.exit(1);
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126 end
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127
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128 local async = require "util.async";
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129 local server = require "net.server";
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130 local watchers = {
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131 error = function (_, err)
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132 error(err);
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133 end;
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134 waiting = function ()
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135 server.loop();
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136 end;
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137 };
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138
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139 local cm = require "core.configmanager";
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140 local hm = require "core.hostmanager";
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141 local sm = require "core.storagemanager";
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142 local um = require "core.usermanager";
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143
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144 local function users(store, host)
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145 if store.users then
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146 return store:users();
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147 else
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148 return um.users(host);
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149 end
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150 end
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151
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152 local function prepare_config(host, conf)
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153 if conf.type == "internal" then
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154 sm.olddm.set_data_path(conf.path or prosody.paths.data);
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155 elseif conf.type == "sql" then
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156 cm.set(host, "sql", conf);
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157 end
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158 end
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159
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160 local function get_driver(host, conf)
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161 prepare_config(host, conf);
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162 return assert(sm.load_driver(host, conf.type));
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163 end
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164
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165 local migration_runner = async.runner(function (job)
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166 for host, stores in pairs(job.input.hosts) do
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167 prosody.hosts[host] = startup.make_host(host);
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168 sm.initialize_host(host);
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169 um.initialize_host(host);
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170
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171 local input_driver = get_driver(host, job.input);
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172
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173 local output_driver = get_driver(host, job.output);
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174
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175 for _, store in ipairs(stores) do
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176 local p, typ = store:match("()%-(%w+)$");
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177 if typ then store = store:sub(1, p-1); else typ = "keyval"; end
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178 log("info", "Migrating host %s store %s (%s)", host, store, typ);
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179
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180 local origin = assert(input_driver:open(store, typ));
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181 local destination = assert(output_driver:open(store, typ));
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182
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183 if typ == "keyval" then -- host data
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184 local data, err = origin:get(nil);
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185 assert(not err, err);
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186 assert(destination:set(nil, data));
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187 end
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188
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189 for user in users(origin, host) do
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190 if typ == "keyval" then
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191 local data, err = origin:get(user);
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192 assert(not err, err);
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193 assert(destination:set(user, data));
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diff changeset
194 elseif typ == "archive" then
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195 local iter, err = origin:find(user);
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196 assert(iter, err);
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197 for id, item, when, with in iter do
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diff changeset
198 assert(destination:append(user, id, item, when, with));
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diff changeset
199 end
10003
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200 else
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diff changeset
201 error("Don't know how to migrate data of type '"..typ.."'.");
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202 end
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203 end
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204 end
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205 end
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diff changeset
206 end, watchers);
4166
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parents: 4162
diff changeset
207
4240
b3d9063aad4d tools/migration/prosody-migrator.lua: Add messages to show when migration is in progress
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parents: 4239
diff changeset
208 io.stderr:write("Migrating...\n");
10003
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diff changeset
209
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diff changeset
210 migration_runner:run({ input = config[from_store], output = config[to_store] });
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diff changeset
211
4240
b3d9063aad4d tools/migration/prosody-migrator.lua: Add messages to show when migration is in progress
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parents: 4239
diff changeset
212 io.stderr:write("Done!\n");