[Haskell-cafe] Standard package file format
jo at durchholz.org
Sun Sep 18 18:39:48 UTC 2016
Am 18.09.2016 um 14:03 schrieb Tom Murphy:
> Even just looking at the set of features which is 1:1 betw. YAML and JSON,
> we're essentially just talking about key-value pairs with a couple of
> common types for the values.
This is just as correct as saying that Haskell is about functions - i.e.
superficially correct but mostly beside the point.
For JSON, it's string-to-whatever maps, arrays, and primitive types.
For YAML, it's string-to-whatever maps, arrays, primitive types,
references (so you can have shared and circular data structures), and
arbitrary types (it will use constructors to deserialize).
> This isn't all .cabal files contain (e.g. see
> hvr's points about conditionals), but if it were true, is it really worth
> changing how Cabal works for a diffferent color bikeshed?
It's bikeshedding if and only if interoperability is irrelevant.
However, in today's world, rejecting interoperability is insanity.
So: no bikeshedding, there are real issues.
It's still quite possible that it's simply not worth it; the cons
associated with changing the buildfile format are pretty weighty after
all, and if the Cabal people say they can fix the known problems with
that format, it's probably a better idea to see what comes of that
before pursuing alternate formats.
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