The Gruntfile.js uses a hacked version of grunt-contrib-lualint
where the call to lualintis replaced by a call to luacheck. This change is rather
trivial, still a new grunt should be created and properly packaged. Use of grunt-env
comes from the lualint and is probably not necessary anymore.
A quick fix to make grunt work until all is properly packaged is to comment out all
use of grunt-contrib-lualint and grunt-env.
If running MediaWiki-Vagrant
in the usual setup, with Ubuntu 12.04 (Precise), there are no deb packages available
in any repository for luacjheck. It does although seem like the package from Ubuntu
17.04 (Zesty) work in Precise, so download the deb-package from
lua-check 0.17.1-1 (s390x binary) in Ubuntu Zesty
to your vagrant-box and install with sudo dpkg -i /path/to/file.deb.
Yes, it is a hefty backport!
It is probably necessary to set up lua-filesystem, but this is available as a
deb-package, so install with sudo apt-get install lua-filesystem.
Lua 5.1 is available as part of the Scribunto role.