[opam-devel] Does pin git:// really make sense ?

Daniel Bünzli daniel.buenzli at erratique.ch
Thu May 30 14:24:07 BST 2013

> The purpose of separating the source (from git) from the version number (in the package description or pin command) is to let the developer control constraints better.

I'm not sure I understand what you mean here. Basically the only thing I propose is to version the package descriptions in the source themselves and allow a checkout of HEAD to be able to figure out (from the file opam/versions) how to get to a specific version of the sources (and corresponding package descriptions).
> Pinning a newer version can result in recompilations due to dependent package constraints changing, so it's useful to be able to specify the version number during the pin.

Here again I don't see how this is related to what I say, I didn't say "I don't want to be able to pin a package to a specific version" I said that in the current state of opam using pin with a git url is a fundamentally broken idea as it assumes that the checkout should be built the same way as the last package version opam has. 


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