On Mon, Mar 7, 2016 at 6:33 AM, sebb <seb...@gmail.com> wrote: > On 7 March 2016 at 00:24, Sam Ruby <ru...@intertwingly.net> wrote: >> On Sun, Mar 6, 2016 at 6:19 PM, sebb <seb...@gmail.com> wrote: >>> About half the ruby script files use /usr/bin/ruby and the others use >>> /usr/bin/ruby1.9.1 >>> >>> I'm not sure it makes sense to force the use of a specific ruby >>> version in this way. >>> >>> Would it not be better to omit the version suffix, and document the >>> required ruby version(s) elsewhere? >> >> Forcing the version of Ruby was more important on whimsy-vm1 which was >> based on Ubuntu 12.04. The default Ruby on 12.04 was Ruby 1.8.7 which >> was pre-utf-8 days (similar to the Python 2=>3 transition, just less >> dramatic). >> >> whimsy-vm2 is based on Ubuntu 14.04, with >> >> $ ls -l /usr/bin/ruby >> lrwxrwxrwx 1 root root 9 Feb 15 2014 /usr/bin/ruby -> ruby1.9.1 >> >> So feel free to fix this. > > Done. > >> At the moment, the passenger/rake applications are running Ruby 2.3.0, >> which has a better garbage collection mechanism, more suited to long >> running applications. > > It occurs to me now that maybe > > A) #!/usr/bin/env ruby [1] > or > B) #!/usr/local/bin/ruby > > would be better, especially for MacOSX El Capitan which locks down /usr/bin. > AIUI this is because OSX uses ruby and needs to ensure a consistent > version, so even though one can in theory update /usr/bin/ruby, it's > not a good idea. > There may be other OSes to which this applies. > > Option A) requires the appropriate PATH to be set, so this can be vary > between different environments, making it harder to debug. > Option B) is simpler to follow and administrate, but less flexible > (though more flexible than /usr/bin/ruby!)
I'm OK with A, and it works on whimsy-vm2, my Ubuntu machines, and my Mac machines. Whereas B doesn't work currently on any of those machines. It would require a symlink to be set up. So... if you want to proceed with A, that's fine with me. Let's reserve 'B' for any case where a specific version of Ruby is called for, e.g., /usr/local/bin/ruby2.3.0. - Sam Ruby > S. > [1] https://en.wikipedia.org/wiki/Env > >> - Sam Ruby
