vim: ruby variants

[iefdev (Eric F)]

I just wanted to bounce a couple of ideas before going further (PR), or if you want to add it in yourself.

All the ruby variants… They keep growing, so I thought maybe it could be automated some way - and easier to update later.

So, could this be a good idea?

(see the attached diff/patch)

# Set latest version of ruby
set rb_latest 26
variant ruby requires ruby18 description {Compatibility variant, requires +ruby18} {}

set rb_versions {}

for {set v 18} {$v <= ${rb_latest}} {incr v} {
    lappend rb_versions ruby${v}
}

foreach rb_version ${rb_versions} {
    set rbi [lsearch ${rb_versions} ${rb_version}]
    set rb_conflict_versions [lreplace ${rb_versions} ${rbi} ${rbi}]
    set rb_bin_version [regsub {(\d{1})(\d){1}} ${rb_version} {\1.\2}]

    variant ${rb_version} conflicts $rb_conflict_versions description {Enable Ruby scripting} {
        configure.args-append   --enable-rubyinterp
        configure.args-append   --with-ruby-command=${prefix}/bin/${rb_bin_version}
    }

    if {[variant_isset ${rb_version}]} {
        depends_lib-append      port:[expr {${rb_version} eq {ruby18} ? {ruby} : ${rb_version}}]
    }
}

That's all of them. It's about half the code of all variants written out.

Had to put the depends_lib-append outside, or it chose the wrong port:rubyXX when specifying a variant.

---

The other idea was about the default/compatibility variant.

variant ruby requires ruby18 description {Compatibility variant, requires +ruby18} {}

Instead of using the very old ruby18… I'm thinking something like:

variant ruby description {Defaults to `ruby', and can be used with `ruby_select'} {
    configure.args-append   --enable-rubyinterp
    configure.args-append   --with-ruby-command=${prefix}/bin/ruby
    depends_lib-append      port:ruby
}

And it will use whatever version responds to ruby. If users don't have ruby installed, it will still pull the 1.8 version, to start with.

Just an idea…

[barracuda156]

Perhaps archaic Rubies should be removed, we only need 2.7+ or even 3.0+.