From: "Shot (Piotr Szotkowski)" <shot@...>
Date: 2009-12-13T22:21:16+09:00
Subject: Re: Is it possible to force a Ruby program to run as a proc name	different than "ruby"?

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I=C3=B1aki Baz Castillo:

> El Domingo, 13 de Diciembre de 2009, Shot (Piotr Szotkowski) escribi=C3=
=B3:

>> I don=E2=80=99t use program suffixes, but rather use

>> ./configure --prefix=3D/home/shot/opt/ruby-1.9.1-p376

>> (and similar, for example ~/opt/ruby-1.8.7-git when building 1.8.7 from
>> the repo=E2=80=99s latest 1.8.7 revision) plus ~/opt/ruby-1.8 and ~/opt/=
ruby-1.9
>> symlinks poiting to the hand-compiled versions I want to use for my
>> development. I then have

>> export PATH_ORIG=3D"$PATH"

>> at the end of my ~/.bashrc and

>> alias r18=3D'export PATH=3D/home/shot/opt/ruby-1.8/bin:$PATH_ORIG'
>> alias r19=3D'export PATH=3D/home/shot/opt/ruby-1.9/bin:$PATH_ORIG'

>> in my ~/.bash_aliases, and switching between Ruby 1.8 and 1.9 is as
>> quick as running =E2=80=98r18=E2=80=99 and =E2=80=98r19=E2=80=99 in the =
shell. I leave system-packaged
>> Ruby alone, if only so that =E2=80=98gem update --system=E2=80=99 works =
sanely (and so
>> no sudo is required for any of my Ruby development whatsoever).

> This is a very nice solution. However the problem is that I need
> ruby1.8 deb package isntalled in my system as many other packages
> require ruby1.8, and it is installed under /usr/ as usual.

Surely =E2=80=93 and I do, too. This is irrelevant to the above solution of
having a hand-rolled Ruby 1.8 and 1.9 (and JRuby and whatnot) for
development purposes. I actually prefer to have the =E2=80=98system=E2=80=
=99 Ruby
and the =E2=80=98development=E2=80=99 Rubies to be different environments (=
as I can
play with backporting Ruby patches, or different build flags, or very
different gem selections, etc.).

=E2=80=94 Shot
--=20
=E2=80=98I=E2=80=99m sort of showing up after the war, here, but I really f=
ail
to understand WHAT we=E2=80=99re arguing about if not a design decision.=E2=
=80=99
=E2=80=98I=E2=80=99d say =E2=80=9Cdiscussing=E2=80=9D. It=E2=80=99s not =E2=
=80=9Carguing=E2=80=9D until people
start accusing each other of being Fortran programmers.=E2=80=99
                             [Aldric Giacomoni, Seebs, ruby-talk]

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