annotate tools/migration/main.lua @ 4226:decfa487e1e8

Merge 0.8->trunk
author Matthew Wild <mwild1@gmail.com>
date Fri, 18 Mar 2011 10:33:38 +0000
parents ff80a8471e86
children
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1 #!/usr/bin/env lua
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2
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3 CFG_SOURCEDIR=os.getenv("PROSODY_SRCDIR");
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4 CFG_CONFIGDIR=os.getenv("PROSODY_CFGDIR");
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5
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6 local default_config = (CFG_CONFIGDIR or ".").."/migrator.cfg.lua";
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7
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8 -- Command-line parsing
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9 local options = {};
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10 local handled_opts = 0;
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11 for i = 1, #arg do
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12 if arg[i]:sub(1,2) == "--" then
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13 local opt, val = arg[i]:match("([%w-]+)=?(.*)");
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14 if opt then
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15 options[(opt:sub(3):gsub("%-", "_"))] = #val > 0 and val or true;
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16 end
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17 handled_opts = i;
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18 else
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19 break;
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20 end
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21 end
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22 table.remove(arg, handled_opts);
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23
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24 -- Load config file
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25 local function loadfilein(file, env)
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26 if loadin then
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27 return loadin(env, io.open(file):read("*a"));
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28 else
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29 local chunk, err = loadfile(file);
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30 if chunk then
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31 setfenv(chunk, env);
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32 end
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33 return chunk, err;
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34 end
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35 end
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36
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37 local config_file = options.config or default_config;
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38 local from_store = arg[1] or "input";
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39 local to_store = arg[2] or "output";
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40
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41 config = {};
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42 local config_env = setmetatable({}, { __index = function(t, k) return function(tbl) config[k] = tbl; end; end });
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43 local config_chunk, err = loadfilein(config_file, config_env);
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44 if not config_chunk then
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45 print("There was an error loading the config file, check the file exists");
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46 print("and that the syntax is correct:");
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47 print("", err);
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48 os.exit(1);
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49 end
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50
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51 config_chunk();
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52
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53 if CFG_SOURCEDIR then
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54 package.path = CFG_SOURCEDIR.."/?.lua;"..package.path;
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55 package.cpath = CFG_SOURCEDIR.."/?.so;"..package.cpath;
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56 elseif not package.loaded["util.json"] then
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57 package.path = "../../?.lua;"..package.path
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58 package.cpath = "../../?.so;"..package.cpath
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59 end
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60
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61 local have_err;
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62 if #arg > 0 and #arg ~= 2 then
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63 have_err = true;
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64 print("Error: Incorrect number of parameters supplied.");
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65 end
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66 if not config[from_store] then
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67 have_err = true;
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68 print("Error: Input store '"..from_store.."' not found in the config file.");
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69 end
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70 if not config[to_store] then
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71 have_err = true;
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72 print("Error: Output store '"..to_store.."' not found in the config file.");
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73 end
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74 if not config[from_store].type then
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75 have_err = true;
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76 print("Error: Input store type not specified in the config file");
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77 elseif not pcall(require, "migrator."..config[from_store].type) then
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78 have_err = true;
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79 print("Error: Unrecognised store type for '"..from_store.."': "..config[from_store].type);
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80 end
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81 if not config[to_store].type then
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82 have_err = true;
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83 print("Error: Output store type not specified in the config file");
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84 elseif not pcall(require, "migrator."..config[to_store].type) then
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85 have_err = true;
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86 print("Error: Unrecognised store type for '"..to_store.."': "..config[to_store].type);
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87 end
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88
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89 if have_err then
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90 print("");
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91 print("Usage: "..arg[0].." FROM_STORE TO_STORE");
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92 print("If no stores are specified, 'input' and 'output' are used.");
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93 print("");
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94 print("The available stores in your migrator config are:");
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95 print("");
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96 for store in pairs(config) do
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97 print("", store);
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98 end
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99 print("");
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100 os.exit(1);
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101 end
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102
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103 local itype = config[from_store].type;
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104 local otype = config[to_store].type;
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105 local reader = require("migrator."..itype).reader(config[from_store]);
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106 local writer = require("migrator."..otype).writer(config[to_store]);
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107
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108 local json = require "util.json";
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109
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110 for x in reader do
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111 --print(json.encode(x))
3ac90743039b tools/migration/*.lua: Convert to unix line endings
Matthew Wild <mwild1@gmail.com>
parents: 4162
diff changeset
112 writer(x);
3ac90743039b tools/migration/*.lua: Convert to unix line endings
Matthew Wild <mwild1@gmail.com>
parents: 4162
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113 end
3ac90743039b tools/migration/*.lua: Convert to unix line endings
Matthew Wild <mwild1@gmail.com>
parents: 4162
diff changeset
114 writer(nil); -- close
3ac90743039b tools/migration/*.lua: Convert to unix line endings
Matthew Wild <mwild1@gmail.com>
parents: 4162
diff changeset
115