diff options
| -rw-r--r-- | tools/migration/main.lua | 77 | ||||
| -rw-r--r-- | tools/migration/migrator.cfg.lua (renamed from tools/migration/config.lua) | 0 |
2 files changed, 69 insertions, 8 deletions
diff --git a/tools/migration/main.lua b/tools/migration/main.lua index 772349bf..e4891966 100644 --- a/tools/migration/main.lua +++ b/tools/migration/main.lua @@ -1,3 +1,5 @@ +local default_config = "./migrator.cfg.lua"; + -- Command-line parsing local options = {}; local handled_opts = 0; @@ -15,23 +17,82 @@ end table.remove(arg, handled_opts); -- Load config file -local function loadfilein(file, env) return loadin and loadin(env, io.open(file):read("*a")) or setfenv(loadfile(file), env); end +local function loadfilein(file, env) + if loadin then + return loadin(env, io.open(file):read("*a")); + else + local chunk, err = loadfile(file); + if chunk then + setfenv(chunk, env); + end + return chunk, err; + end +end + +local config_file = options.config or default_config; +local from_store = arg[1] or "input"; +local to_store = arg[2] or "output"; + config = {}; local config_env = setmetatable({}, { __index = function(t, k) return function(tbl) config[k] = tbl; end; end }); -loadfilein(options.config or "config.lua", config_env)(); +local config_chunk, err = loadfilein(config_file, config_env); +if not config_chunk then + print("There was an error loading the config file, check the file exists"); + print("and that the syntax is correct:"); + print("", err); + os.exit(1); +end + +config_chunk(); if not package.loaded["util.json"] then package.path = "../../?.lua;"..package.path package.cpath = "../../?.dll;"..package.cpath end -local from_store = arg[1] or "input"; -local to_store = arg[2] or "output"; +local have_err; +if #arg > 0 and #arg ~= 2 then + have_err = true; + print("Error: Incorrect number of parameters supplied."); +end +if not config[from_store] then + have_err = true; + print("Error: Input store '"..from_store.."' not found in the config file."); +end +if not config[to_store] then + have_err = true; + print("Error: Output store '"..to_store.."' not found in the config file."); +end +if not config[from_store].type then + have_err = true; + print("Error: Input store type not specified in the config file"); +elseif not pcall(require, config[from_store].type) then + have_err = true; + print("Error: Unrecognised store type for '"..from_store.."': "..config[from_store].type); +end +if not config[to_store].type then + have_err = true; + print("Error: Output store type not specified in the config file"); +elseif not pcall(require, config[to_store].type) then + have_err = true; + print("Error: Unrecognised store type for '"..to_store.."': "..config[to_store].type); +end -assert(config[from_store], "no input specified") -assert(config[to_store], "no output specified") -local itype = assert(config[from_store].type, "no type specified for "..from_store); -local otype = assert(config[to_store].type, "no type specified for "..to_store); +if have_err then + print(""); + print("Usage: "..arg[0].." FROM_STORE TO_STORE"); + print("If no stores are specified, 'input' and 'output' are used."); + print(""); + print("The available stores in your migrator config are:"); + print(""); + for store in pairs(config) do + print("", store); + end + os.exit(1); +end + +local itype = config[from_store].type; +local otype = config[to_store].type; local reader = require(itype).reader(config[from_store]); local writer = require(otype).writer(config[to_store]); diff --git a/tools/migration/config.lua b/tools/migration/migrator.cfg.lua index fa37f2a3..fa37f2a3 100644 --- a/tools/migration/config.lua +++ b/tools/migration/migrator.cfg.lua |