lua-any1

Usage

Overview

Some Lua scripts work with multiple versions of Lua but not all of them. The upstream author of the software may hence have chosen the loose shebang line:

                #!/usr/bin/env lua

In Debian /usr/bin/lua is a valid Lua interpreter but it is under the control of the user, that can set its value to the Lua version of its choice, even one that is not able to run the script in question.

lua-any is a helper that understands metadata written in comments and selects a valid Lua interpreter. Example:

                #!/usr/bin/env lua-any
                -- Lua-Versions: 5.1 5.2

lua-any tests in turn the existence of lua5.1 and lua5.2 and executes the script with the first existing interpreter.

Debian notes

A package using lua-any should declare its dependencies on Lua interpreters using a disjunction. Example:

                Depends: lua-any, lua5.1 | lua5.2