Re: [Caml-list] Opam: using both 1.2 and 2.0

[Anil Madhavapeddy <anil@recoil.org>]

On 21 Jan 2019, at 14:54, Sébastien Hinderer <Sebastien.Hinderer@inria.fr> wrote:
> 
> Hi,
> 
> Daniel Bünzli (2019/01/07 10:52 +0100):
>> On 7 January 2019 at 10:25:10, Sébastien Hinderer (sebastien.hinderer@inria.fr) wrote:
>> 
>>> Will try that! Thanks! But still have to figure out how to install opam
>>> 1 I guess, because it will probably not be possible to install it
>>> through the distribution's package manager.
>> 
>> opam dev's are kind enough to provide you with a selection of binaries here: 
>> 
>>   https://github.com/ocaml/opam/releases/tag/1.2.2
>> 
>> I never tried them though. Otherwise given an OCaml install, compiling
>> from the tarball should be easy has never been a problem since it's
>> self-contained.
> 
> I just wanted to thank you for the suggestion and confirm that it worked
> quite well. I downloaded the binary for my platform and installed it in my
> private bin directory as 'opam1'. When I want to use it, rather than the
> system-provided opam (version 2), I create a symlink in my bin
> directory.
> 
> Then I just had to do:
> 
> opam init --root=~/.opam1
> 
> and everything wored fine.
> 

Excellent, glad to hear that’s working for you now!

In the medium-term, please do let us opam developers know if there is
some fundamental reason why you cannot migrate your projects from
opam 1 to 2.  We will do our best to unblock it in opam 2, since we
can’t fully leave opam 1 behind until the last user has closed the door
behind them :-)

regards,
Anil