support for Lua 5.4

[gennaro-tedesco]

Description

luaunit fails to install for Lua 5.4

Configuration

$ lua -v
Lua 5.4.2  Copyright (C) 1994-2020 Lua.org, PUC-Rio

system: macOs Big Sur, version 11.1

Example

Running luarocks install luaunit throws the following:

Installing https://luarocks.org/luaunit-3.3-1.src.rock
Missing dependencies for luaunit 3.3-1:
   lua < 5.4 (not installed)

luaunit 3.3-1 depends on lua >= 5.1 (5.4-1 provided by VM)
luaunit 3.3-1 depends on lua < 5.4 (not installed)

Error: Could not satisfy dependency lua < 5.4: Rock lua 5.4-1 is already provided by VM or via 'rocks_provided' in the config file.

Is luaunit unsupported for the latest versions of Lua or am I installing it wrong?

[YodaEmbedding]

Notice that you have lua 5.4 but luaunit requires < 5.4. The current git version appears to allow < 5.5 -- see 67da65d -- but this hasn't been released yet.

For now, you can install to 5.3 instead:

luarocks install luaunit --lua-version 5.3

In order to use it, you will need to change your lua paths to use Lua 5.3. This can be done by:

eval `luarocks path --lua-version 5.3`

That merely runs a couple of export commands to update the environment variables, so it should only last as long as your terminal instance does.

[bluebird75]

Version 3.4 of LuaUnit has now been released, with support for Lua 5.4 . You can install/upgrade it with luarocks.

Thanks for creating the incentive of doing it !

[gennaro-tedesco]

I confirm it installs fine

luarocks install luaunit
Installing https://luarocks.org/luaunit-3.4-1.rockspec

luaunit 3.4-1 depends on lua >= 5.1 (5.4-1 provided by VM)
luaunit 3.4-1 depends on lua < 5.5 (5.4-1 provided by VM)
luaunit 3.4-1 is now installed in /usr/local (license: BSD)

I have not checked yet by writing unit test code (but I suspect it should work fine too).

[bluebird75]

I would be surprised if it would not work fine but don't hesitate to report it if that's the case!