Re: [Caml-list] Offline opam

[Arlen Cox <arlencox@gmail.com>]

Hi Anil,

There appears to be no issue installing packages, but switch does not
seem to work.

'opam switch 4.03' connects via http to download the compiler.  How do
I make the compiler versions available offline as well?

Thanks,
Arlen

On Tue, Oct 4, 2016 at 5:55 AM, Anil Madhavapeddy <anil@recoil.org> wrote:
> On 3 Oct 2016, at 19:05, Arlen Cox <arlencox@gmail.com> wrote:
>>
>> Hi all,
>>
>> Is there good documentation anywhere on how to make an offline opam
>> repo?  I would like to be able to use the repo just like I would opam
>> with an internet connection.
>>
>> I would like to be able to do the following:
>>  - Install any package: opam install package_x
>>  - Search for any package: opam search package_y
>>  - Switch the compiler (even if I have not yet installed that
>> compiler version): opam switch 4.02.0
>>
>> Using opam-admin make, I can cause all packages to be downloaded, but
>> they're tagged with the compiler version that I used to fetch them.
>> This means that if I run a switch, the existing archives are no longer
>> valid (I presume).  Furthermore none of the ocaml compiler sources are
>> downloaded, so I cannot actually use opam switch with this install.
>
> Dear Arlen,
>
> The OPAM archives generated by `opam admin make` should be
> independent of the version of the compiler that has been selected.
> They are placed in the archives/ directory of the remote so that you
> can confirm this.
>
> How is the issue manifesting that you are seeing -- is it definitely
> failing to retrieve the package in just one switch?  If this is the case,
> then an issue on https://github.com/ocaml/opam/issues would be
> appreciated, with details on `opam remote` so that we can see how
> you are accessing the local package.
>
> OPAM should support complete offline access (assuming that package
> builds themselves do not depend on the network), so the model you
> want should work with OPAM 1.2.2.
>
> regards
> Anil