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-rw-r--r--util/dependencies.lua35
1 files changed, 35 insertions, 0 deletions
diff --git a/util/dependencies.lua b/util/dependencies.lua
new file mode 100644
index 00000000..cb336e97
--- /dev/null
+++ b/util/dependencies.lua
@@ -0,0 +1,35 @@
+local fatal;
+
+local function softreq(...) local ok, lib = pcall(require, ...); if ok then return lib; else return nil; end end
+
+local function missingdep(name, sources, msg)
+ print("Prosody was unable to find "..tostring(name));
+ print("This package can be obtained in the following ways:");
+ print("");
+ for k,v in pairs(sources) do
+ print("", k, v);
+ end
+ print(msg or (name.." is required for Prosody to run, so we will now exit."));
+end
+
+local lxp = softreq "lxp"
+
+if not lxp then
+ missingdep("luaexpat", { ["Ubuntu 8.04 (Hardy)"] = "sudo apt-get install liblua5.1-expat0"; ["luarocks"] = "luarocks install luaexpat"; });
+ fatal = true;
+end
+
+local socket = softreq "socket"
+
+if not socket then
+ missingdep("luasocket", { ["Ubuntu 8.04 (Hardy)"] = "sudo apt-get install liblua5.1-socket2"; ["luarocks"] = "luarocks install luasocket"; });
+ fatal = true;
+end
+
+local ssl = softreq "ssl"
+
+if not ssl then
+ missingdep("LuaSec", { ["Source"] = "http://www.inf.puc-rio.br/~brunoos/luasec/" }, "SSL/TLS support will not be available");
+end
+
+if fatal then os.exit(1); end