prosody
eb1a0960cefb
util/dependencies.lua

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