Re: Can't push to haddock

On Tue, Dec 19, 2017, 09:48 Simon Peyton Jones via ghc-devs < ghc-devs@haskell.org> wrote:

It seems to me that there is some hostility towards GitHub in GHC HQ, but I don't really understand why. GitHub serves other similar projects quite well, e.g. Rust, and I can't see why we should be special.

Speaking for myself, I have no hostility towards GitHub, and there is no GHC-HQ bias against it that I know of. If it serves the purpose better, we should use it. Indeed that’s why I asked my original question. I agree with your point that data may actually be safer in GitHub than in our own repo. (And there is nothing to stop a belt-and-braces mirror backup system.)

These are just a few of the times github has been down in 2017 http://currentlydown.com/github.com compared to haskell.org http://currentlydown.com/haskell.org Other third parties such as gitlab.com have suffered catastrophic data failures and by the very virtue of them being free means they don't owe you anything. I have nothing against github for small projects. I have nothing but hate for it for large ones. And I don't see that changing any time soon as everything they do seems to be half baked and the bare minimum

The issue is: does GitHub serve the purpose better? http://currentlydown.co have frequently debated this multi-dimensional question. And we should continue to do so: the answers may change over time (GitHub’s facilities are not static; and its increasing dominance is itself a cultural familiarity factor that simply was not the case five years ago).

As is often the case in computing history. Dominance does not mean best nor fit for purpose. Supposedly switching to these cloud based CIs were suppose to solve all our issues. And to this day none of them are working not withstanding the massive amount of effort wasted to get them to work. Simon

*From:* Sven Panne [mailto:svenpanne@gmail.com] *Sent:* 19 December 2017 09:30 *To:* Herbert Valerio Riedel *Cc:* Simon Peyton Jones ; ghc-devs@haskell.org Devs

*Subject:* Re: Can't push to haddock

2017-12-19 9:50 GMT+01:00 Herbert Valerio Riedel :

We'd need mirroring anyway, as we want to keep control over our infrastructure and not have to trust a 3rd party infrastructure to safely handle our family jewels: GHC's source tree.

I think this is a question of perspective: Having the master repository on GitHub doesn't mean you are in immediate danger or lose your "family jewels". IMHO it's quite the contrary: I'm e.g. sure that in case that something goes wrong with GitHub, there is far more manpower behind it to fix that than for any self-hosted repository. And you can of course have some mirror of your GitHub repo in case of e.g. an earthquake/meteor/... in the San Francisco area... ;-)

It seems to me that there is some hostility towards GitHub in GHC HQ, but I don't really understand why. GitHub serves other similar projects quite well, e.g. Rust, and I can't see why we should be special.

Also, catching bad commits "a bit later" is just asking for trouble -- by the time they're caught the git repos have already lost their invariant and its a big mess to recover;

This is by no means different than saying: "I want to run 'validate' in the commit hook, otherwise it's a big mess." We don't do this for obvious reasons, and what is the "big mess" if there is some incorrect submodule reference for a short time span? How is that different from somebody introducing e.g. a subtle compiler bug in a commit?

the invariant I devised and whose validation I implemented 4 years ago has served us pretty well, and has ensured that we never glitched into incorrectness; I'm also not sure why it's being suggested to switch to a less principled and more fragile scheme now. [...]

Because the whole repository structure is overly complicated and simply hosting everything on GitHub would simplify things. Again: I'm well aware that there are tradeoffs involved, but I would really appreciate simplifications. I have the impression that the entry barrier to GHC development has become larger and larger over the years, partly because of very non-standard tooling, partly because of the increasingly arcane repository organization. There are reasons that other projects like Rust attract far more developers... :-/

</GrumpyMode>

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