prosody
b1885732e979
util/datamanager.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/datamanager.lua @ 758:b1885732e979

GPL->MIT!
author Matthew Wild <mwild1@gmail.com>
date Fri, 30 Jan 2009 17:22:56 +0000
parent 732:0343739f3d71
child 759:5cccfb5da6cb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
615
4ae3e81513f3 0.1 -> 0.2
Matthew Wild <mwild1@gmail.com>
parents: 574
diff changeset
1 -- Prosody IM v0.2
519
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 456
diff changeset
2 -- Copyright (C) 2008 Matthew Wild
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 456
diff changeset
3 -- Copyright (C) 2008 Waqas Hussain
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 456
diff changeset
4 --
758
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 732
diff changeset
5 -- This project is MIT/X11 licensed. Please see the
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 732
diff changeset
6 -- COPYING file in the source package for more information.
519
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 456
diff changeset
7 --
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 456
diff changeset
8
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 456
diff changeset
9
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
10 local format = string.format;
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
11 local setmetatable, type = setmetatable, type;
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
12 local pairs, ipairs = pairs, ipairs;
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
13 local char = string.char;
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
14 local loadfile, setfenv, pcall = loadfile, setfenv, pcall;
456
27cb85d4059e Fixed logging in datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 452
diff changeset
15 local log = require "util.logger".init("datamanager");
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
16 local io_open = io.open;
206
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
17 local os_remove = os.remove;
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
18 local io_popen = io.popen;
267
6303b7454ad0 Some bugs fixed
Waqas Hussain <waqas20@gmail.com>
parents: 247
diff changeset
19 local tostring, tonumber = tostring, tonumber;
177
606c433955e7 Bug fixes and checks for presence subscriptions, etc
Waqas Hussain <waqas20@gmail.com>
parents: 129
diff changeset
20 local error = error;
206
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
21 local next = next;
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
22 local t_insert = table.insert;
550
56bdfae9e4ea Changed util.datamanager to use util.serialization
Waqas Hussain <waqas20@gmail.com>
parents: 519
diff changeset
23 local append = require "util.serialization".append;
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
24 local path_separator = "/"; if os.getenv("WINDIR") then path_separator = "\\" end
452
613c5c6bdce4 Added option core.data_path
Waqas Hussain <waqas20@gmail.com>
parents: 267
diff changeset
25
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
26 module "datamanager"
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
27
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
28 ---- utils -----
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
29 local encode, decode;
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
30 do
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
31 local urlcodes = setmetatable({}, { __index = function (t, k) t[k] = char(tonumber("0x"..k)); return t[k]; end });
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
32
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
33 decode = function (s)
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
34 return s and (s:gsub("+", " "):gsub("%%([a-fA-F0-9][a-fA-F0-9])", urlcodes));
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
35 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
36
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
37 encode = function (s)
628
3712d36b6d25 Fixed URL encoding to generate %0x instead of %x
Waqas Hussain <waqas20@gmail.com>
parents: 615
diff changeset
38 return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end));
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
39 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
40 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
41
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
42 local _mkdir = {};
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
43 local function mkdir(path)
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
44 path = path:gsub("/", path_separator); -- TODO as an optimization, do this during path creation rather than here
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
45 if not _mkdir[path] then
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
46 local x = io_popen("mkdir \""..path.."\" 2>&1"):read("*a");
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
47 _mkdir[path] = true;
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
48 end
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
49 return path;
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
50 end
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
51
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
52 local data_path = "data";
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
53
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
54 ------- API -------------
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
55
452
613c5c6bdce4 Added option core.data_path
Waqas Hussain <waqas20@gmail.com>
parents: 267
diff changeset
56 function set_data_path(path)
732
0343739f3d71 util.datamanager: Small fix for clearer logging of data path
Matthew Wild <mwild1@gmail.com>
parents: 706
diff changeset
57 log("info", "Setting data path to: %s", path);
452
613c5c6bdce4 Added option core.data_path
Waqas Hussain <waqas20@gmail.com>
parents: 267
diff changeset
58 data_path = path;
613c5c6bdce4 Added option core.data_path
Waqas Hussain <waqas20@gmail.com>
parents: 267
diff changeset
59 end
613c5c6bdce4 Added option core.data_path
Waqas Hussain <waqas20@gmail.com>
parents: 267
diff changeset
60
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
61 function getpath(username, host, datastore, ext, create)
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
62 ext = ext or "dat";
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
63 host = host and encode(host);
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
64 username = username and encode(username);
84
d0a0bac6815e Added: Datastore support for hosts and global data in addition to users
Waqas Hussain <waqas20@gmail.com>
parents: 0
diff changeset
65 if username then
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
66 if create then mkdir(mkdir(mkdir(data_path).."/"..host).."/"..datastore); end
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
67 return format("%s/%s/%s/%s.%s", data_path, host, datastore, username, ext);
84
d0a0bac6815e Added: Datastore support for hosts and global data in addition to users
Waqas Hussain <waqas20@gmail.com>
parents: 0
diff changeset
68 elseif host then
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
69 if create then mkdir(mkdir(data_path).."/"..host); end
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
70 return format("%s/%s/%s.%s", data_path, host, datastore, ext);
84
d0a0bac6815e Added: Datastore support for hosts and global data in addition to users
Waqas Hussain <waqas20@gmail.com>
parents: 0
diff changeset
71 else
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
72 if create then mkdir(data_path); end
452
613c5c6bdce4 Added option core.data_path
Waqas Hussain <waqas20@gmail.com>
parents: 267
diff changeset
73 return format("%s/%s.%s", data_path, datastore, ext);
84
d0a0bac6815e Added: Datastore support for hosts and global data in addition to users
Waqas Hussain <waqas20@gmail.com>
parents: 0
diff changeset
74 end
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
75 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
76
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
77 function load(username, host, datastore)
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
78 local data, ret = loadfile(getpath(username, host, datastore));
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
79 if not data then
706
ce772e283992 datamanager: Change log message from type "warn" to "debug" when loading a file fails
Waqas Hussain <waqas20@gmail.com>
parents: 643
diff changeset
80 log("debug", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
81 return nil;
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
82 end
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
83 setfenv(data, {});
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
84 local success, ret = pcall(data);
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
85 if not success then
182
f5cb6b5a6eb7 Datamanager Fixes and improvements
Waqas Hussain <waqas20@gmail.com>
parents: 177
diff changeset
86 log("error", "Unable to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
87 return nil;
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
88 end
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
89 return ret;
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
90 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
91
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
92 function store(username, host, datastore, data)
206
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
93 if not data then
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
94 data = {};
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
95 end
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
96 -- save the datastore
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
97 local f, msg = io_open(getpath(username, host, datastore, nil, true), "w+");
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
98 if not f then
182
f5cb6b5a6eb7 Datamanager Fixes and improvements
Waqas Hussain <waqas20@gmail.com>
parents: 177
diff changeset
99 log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil"));
206
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
100 return;
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
101 end
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
102 f:write("return ");
550
56bdfae9e4ea Changed util.datamanager to use util.serialization
Waqas Hussain <waqas20@gmail.com>
parents: 519
diff changeset
103 append(f, data);
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
104 f:close();
206
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
105 if not next(data) then -- try to delete empty datastore
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
106 os_remove(getpath(username, host, datastore));
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
107 end
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
108 -- we write data even when we are deleting because lua doesn't have a
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
109 -- platform independent way of checking for non-exisitng files
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
110 return true;
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
111 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
112
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
113 function list_append(username, host, datastore, data)
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
114 if not data then return; end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
115 -- save the datastore
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
116 local f, msg = io_open(getpath(username, host, datastore, "list", true), "a+");
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
117 if not f then
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
118 log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil"));
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
119 return;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
120 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
121 f:write("item(");
550
56bdfae9e4ea Changed util.datamanager to use util.serialization
Waqas Hussain <waqas20@gmail.com>
parents: 519
diff changeset
122 append(f, data);
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
123 f:write(");\n");
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
124 f:close();
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
125 return true;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
126 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
127
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
128 function list_store(username, host, datastore, data)
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
129 if not data then
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
130 data = {};
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
131 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
132 -- save the datastore
643
8ff454831f7d Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents: 628
diff changeset
133 local f, msg = io_open(getpath(username, host, datastore, "list", true), "w+");
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
134 if not f then
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
135 log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil"));
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
136 return;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
137 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
138 for _, d in ipairs(data) do
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
139 f:write("item(");
550
56bdfae9e4ea Changed util.datamanager to use util.serialization
Waqas Hussain <waqas20@gmail.com>
parents: 519
diff changeset
140 append(f, d);
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
141 f:write(");\n");
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
142 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
143 f:close();
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
144 if not next(data) then -- try to delete empty datastore
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
145 os_remove(getpath(username, host, datastore, "list"));
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
146 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
147 -- we write data even when we are deleting because lua doesn't have a
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
148 -- platform independent way of checking for non-exisitng files
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
149 return true;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
150 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
151
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
152 function list_load(username, host, datastore)
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
153 local data, ret = loadfile(getpath(username, host, datastore, "list"));
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
154 if not data then
706
ce772e283992 datamanager: Change log message from type "warn" to "debug" when loading a file fails
Waqas Hussain <waqas20@gmail.com>
parents: 643
diff changeset
155 log("debug", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
156 return nil;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
157 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
158 local items = {};
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
159 setfenv(data, {item = function(i) t_insert(items, i); end});
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
160 local success, ret = pcall(data);
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
161 if not success then
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
162 log("error", "Unable to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
163 return nil;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
164 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
165 return items;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
166 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
167
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
168 return _M;