Re: OCaml solver in Windows version of Zero Install

On 29 January 2016 at 09:21, Bastian Eicher <[email protected]> wrote:
> A while ago Thomas added the "0install slave" command to the OCaml
> implementation of Zero Install which allows external applications to control
> Zero Install using a JSON API.
>
>
>
> The C#/Windows version of Zero Install works standalone using its own
> Solver, but the OCaml solver is more powerful (can handle more complex
> dependency trees). Therefore I started working on a feature in Zero Install
> for Windows that automatically downloads and uses the OCaml version as an
> additional Solver backend if the built-in Solver cannot find a solution on
> its own. I've gotten a little sidetracked with other stuff in the past
> months but now I finally got around to finishing this integration between
> the C# Frontend and OCaml Solver.

That's great :-)

> Windows builds of the OCaml version currently do not support SSL. This would
> be a problem when the Solver tries to contact the Key info server but since
> the C# Solver runs first any relevant keys are most likely already listed in
> trustdb.xml.

Note: I believe the only problem here is getting access to the Windows
certificate store. Otherwise we have to bundle our own certificates,
which would get out-of-date. We could either modify the libcurl C
library we use (I think it has support already, as a compile-time
option), or add support to ocaml-tls. Patches welcome...

> @Thomas: Could you add a current Windows build of the OCaml version (e.g.,
> pulled from TeamCity) to the public http://0install.net/tools/0install.xml
> feed?

I guess we should make a new release for this, right? I've just pushed
some updates for the latest PackageKit API and finished off the new
paths support (was slightly broken for --dry-run), so might be best to
wait a few days...


-- 
Dr Thomas Leonard        http://roscidus.com/blog/
GPG: DA98 25AE CAD0 8975 7CDA  BD8E 0713 3F96 CA74 D8BA

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