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132 lines
3.4 KiB
132 lines
3.4 KiB
#!/usr/bin/env lua
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CFG_SOURCEDIR=os.getenv("PROSODY_SRCDIR");
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CFG_CONFIGDIR=os.getenv("PROSODY_CFGDIR");
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-- Substitute ~ with path to home directory in paths
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if CFG_CONFIGDIR then
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CFG_CONFIGDIR = CFG_CONFIGDIR:gsub("^~", os.getenv("HOME"));
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end
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if CFG_SOURCEDIR then
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CFG_SOURCEDIR = CFG_SOURCEDIR:gsub("^~", os.getenv("HOME"));
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end
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local default_config = (CFG_CONFIGDIR or ".").."/migrator.cfg.lua";
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-- Command-line parsing
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local options = {};
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local handled_opts = 0;
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for i = 1, #arg do
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if arg[i]:sub(1,2) == "--" then
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local opt, val = arg[i]:match("([%w-]+)=?(.*)");
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if opt then
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options[(opt:sub(3):gsub("%-", "_"))] = #val > 0 and val or true;
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end
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handled_opts = i;
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else
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break;
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end
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end
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table.remove(arg, handled_opts);
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if CFG_SOURCEDIR then
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package.path = CFG_SOURCEDIR.."/?.lua;"..package.path;
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package.cpath = CFG_SOURCEDIR.."/?.so;"..package.cpath;
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else
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package.path = "../../?.lua;"..package.path
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package.cpath = "../../?.so;"..package.cpath
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end
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local envloadfile = require "util.envload".envloadfile;
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-- Load config file
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local function loadfilein(file, env)
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if loadin then
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return loadin(env, io.open(file):read("*a"));
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else
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return envloadfile(file, env);
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end
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end
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local config_file = options.config or default_config;
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local from_store = arg[1] or "input";
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local to_store = arg[2] or "output";
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config = {};
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local config_env = setmetatable({}, { __index = function(t, k) return function(tbl) config[k] = tbl; end; end });
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local config_chunk, err = loadfilein(config_file, config_env);
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if not config_chunk then
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print("There was an error loading the config file, check the file exists");
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print("and that the syntax is correct:");
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print("", err);
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os.exit(1);
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end
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config_chunk();
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local have_err;
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if #arg > 0 and #arg ~= 2 then
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have_err = true;
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print("Error: Incorrect number of parameters supplied.");
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end
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if not config[from_store] then
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have_err = true;
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print("Error: Input store '"..from_store.."' not found in the config file.");
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end
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if not config[to_store] then
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have_err = true;
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print("Error: Output store '"..to_store.."' not found in the config file.");
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end
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function load_store_handler(name)
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local store_type = config[name].type;
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if not store_type then
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print("Error: "..name.." store type not specified in the config file");
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return false;
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else
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local ok, err = pcall(require, "migrator."..store_type);
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if not ok then
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if package.loaded["migrator."..store_type] then
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print(("Error: Failed to initialize '%s' store:\n\t%s")
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:format(name, err));
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else
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print(("Error: Unrecognised store type for '%s': %s")
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:format(from_store, store_type));
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end
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return false;
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end
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end
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return true;
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end
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have_err = have_err or not(load_store_handler(from_store, "input") and load_store_handler(to_store, "output"));
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if have_err then
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print("");
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print("Usage: "..arg[0].." FROM_STORE TO_STORE");
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print("If no stores are specified, 'input' and 'output' are used.");
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print("");
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print("The available stores in your migrator config are:");
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print("");
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for store in pairs(config) do
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print("", store);
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end
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print("");
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os.exit(1);
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end
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local itype = config[from_store].type;
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local otype = config[to_store].type;
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local reader = require("migrator."..itype).reader(config[from_store]);
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local writer = require("migrator."..otype).writer(config[to_store]);
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local json = require "util.json";
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io.stderr:write("Migrating...\n");
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for x in reader do
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--print(json.encode(x))
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writer(x);
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end
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writer(nil); -- close
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io.stderr:write("Done!\n");
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