path: use versioned LUA_xPATH_5_x variables

`luarocks path` now exports versioned variables `LUA_PATH_5_x` and
`LUA_CPATH_5_x` instead of `LUA_PATH` and `LUA_CPATH`
when those are in use in your system.

Fixes #760.

1 files changed, 34 insertions, 0 deletions

diff --git a/spec/path_spec.lua b/spec/path_spec.lua
index 22f07591..536233b1 100644
--- a/spec/path_spec.lua
+++ b/spec/path_spec.lua
@@ -8,6 +8,40 @@ describe("LuaRocks path tests #blackbox #b_path", function()
       test_env.setup_specs()
    end)
 
+   it("LuaRocks path", function()
+      local output = run.luarocks("path")
+      assert.match("LUA_PATH=", output)
+      assert.match("LUA_CPATH=", output)
+   end)
+
+   if _VERSION:match("[23]") then
+      local v = _VERSION:gsub("Lua (%d+)%.(%d+)", "%1_%2")
+   
+      it("LuaRocks path with LUA_PATH_"..v, function()
+         local output = run.luarocks("path", {
+            ["LUA_PATH_"..v] = package.path,
+         })
+         assert.match("LUA_PATH_"..v.."=", output)
+      end)
+
+      it("LuaRocks path with LUA_CPATH_"..v, function()
+         local output = run.luarocks("path", {
+            ["LUA_CPATH_"..v] = package.cpath,
+         })
+         assert.match("LUA_CPATH_"..v.."=", output)
+      end)
+
+      it("LuaRocks path with LUA_PATH_"..v.." and LUA_CPATH_"..v, function()
+         local output = run.luarocks("path", {
+            ["LUA_PATH_"..v]  = package.path,
+            ["LUA_CPATH_"..v] = package.cpath,
+         })
+         assert.match("LUA_PATH_"..v.."=", output)
+         assert.match("LUA_CPATH_"..v.."=", output)
+      end)
+
+   end
+
    it("LuaRocks path bin", function()
       assert.is_true(run.luarocks_bool("path --bin"))
    end)