Using Stack for build of
Haskell code on Travis CI has
number of benefits. For those unfamiliar with it, Travis is a
cloud-base continuous integration system, which will build and test
your code automatically. It integrates with Github and is free for
open-source projects (but also has paid plans for private
projects). Stack's use of cached packages built from Stackage
snapshots means builds will be much shorter than without, and
reduces the guesswork of whether a build failure was introduced by
your own code or something that changed on Hackage. It's also easy
to use multiple environment configurations to test against multiple
snapshots, including the latest nightly, as a way to ensure that
your code builds against a known-to-work set of the latest
Stack works very nicely on Travis, but until recently the
documentation for how to set it up languished in semi-obscurity on
the Stack wiki. Hereby, we are lifting it out of obscurity. Rather
than repeat ourselves, go look at:
Travis with caching section of the user's guide, which should
be sufficient for most use cases.
- The Travis
CI document, which has more information and a slightly
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