prosody
eb1a0960cefb
util/dependencies.lua

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Software / code / prosody

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util/dependencies.lua @ 408:eb1a0960cefb

Friendlier messages on missing dependencies
author Matthew Wild <mwild1@gmail.com>
date Tue, 25 Nov 2008 02:20:23 +0000
child 409:2269e9cbe153
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407:7ae008771391 408:eb1a0960cefb
1 local fatal;
2
3 local function softreq(...) local ok, lib = pcall(require, ...); if ok then return lib; else return nil; end end
4
5 local function missingdep(name, sources, msg)
6 print("Prosody was unable to find "..tostring(name));
7 print("This package can be obtained in the following ways:");
8 print("");
9 for k,v in pairs(sources) do
10 print("", k, v);
11 end
12 print(msg or (name.." is required for Prosody to run, so we will now exit."));
13 end
14
15 local lxp = softreq "lxp"
16
17 if not lxp then
18 missingdep("luaexpat", { ["Ubuntu 8.04 (Hardy)"] = "sudo apt-get install liblua5.1-expat0"; ["luarocks"] = "luarocks install luaexpat"; });
19 fatal = true;
20 end
21
22 local socket = softreq "socket"
23
24 if not socket then
25 missingdep("luasocket", { ["Ubuntu 8.04 (Hardy)"] = "sudo apt-get install liblua5.1-socket2"; ["luarocks"] = "luarocks install luasocket"; });
26 fatal = true;
27 end
28
29 local ssl = softreq "ssl"
30
31 if not ssl then
32 missingdep("LuaSec", { ["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/" }, "SSL/TLS support will not be available");
33 end
34
35 if fatal then os.exit(1); end