Re: Update Hombrew install instructions on the web site

On 2 August 2015 at 20:06, Anders F Björklund <[email protected]> wrote:
> Thomas Leonard wrote:
>>>>> And I don't really want to go through the hassle of having to maintain
>>>>> all the dependencies, and update them if there's new versions etc etc.
>>>>
>>>> Yes, this does seem like an annoying requirement.
>>>
>>> But seems necessary, like in case of Lwt below ? Should be some way
>>> to "pin" opam to use the bundled libraries, if it can't stay offline.
>>
>> If you delete from opam-repository all the versions you're not using,
>> it won't have any choice :-)
>
> Right, but if I just deleted the remote it didn't find anything at all.
> Suppose I could do something with the repo, but it is too much hassle.

Would this work?

  export OPAMROOT=/tmp/opam
  opam init --no-setup
  opam remote remove default
  tar cjf opam-empty.tar.bz2 /tmp/opam

The small opam-empty.tar.bz2 could be added to the package. Then, at build-time:

  opam remote add local /path/to/opam-repository
  opam install 0install

Might have to adjust the paths in "system/config/global-config.config"
so they don't start /tmp/opam...

>> Or, you could add some exact version constraints to 0install's opam file.
>>
>>> I know that I did this for the release, since the "sha" module didn't
>>> work with the older SDK (bug filed). Seems missing on Fedora as well ?
>>>
>>> Will see if I can't get it to install the ones that I provided instead.
>>
>> You can specify versions like this:
>>
>> opam install 'lwt=2.5.0'
>>
>> But it might be easier to 'opam install 0install' and grab the binary
>> it produces.
>
> Right, but that's pretty much what we had already before the resources.
> And then I still need to move everything out from the $OPAMROOT/system ?
>
>
> Whatever I try to do with OPAM, it still needs the compilers/packages.
>
> And If I don't use OPAM, then I need to install/maintain everything
> myself and keep track of all the silly build'ing variants needed...
>
> The right thing to do seems to be to "pin" every resource, in order.
>
> --anders
>
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-- 
Dr Thomas Leonard        http://roscidus.com/blog/
GPG: DA98 25AE CAD0 8975 7CDA  BD8E 0713 3F96 CA74 D8BA

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