[MacPorts] #58975: vim: ruby variants

[MacPorts]

#58975: vim: ruby variants
-------------------------+----------------------
 Reporter:  iEFdev       |      Owner:  raimue
     Type:  enhancement  |     Status:  assigned
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.5.4
 Keywords:               |       Port:  vim
-------------------------+----------------------
 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)

 {{{#!tcl
 # 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.

 {{{#!tcl
 variant ruby requires ruby18 description {Compatibility variant, requires
 +ruby18} {}
 }}}

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

 {{{#!tcl
 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…

-- 
Ticket URL: <https://trac.macports.org/ticket/58975>
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