Hi,
I, too, ran into the requirement to have a compiled Haskell binary
print the Git hash it was derived from. There's a package for that
(gitrev), which does not work to my satisfaction.
Investigation led me to a wider concept. I now think that Cabal
should discern two sorts of generated files:
1. Early generated files, that are not stored in the source
repository but have to be present in a source distribution created
by `cabal sdist`.
2. Late generated files, that are also not in the source distribution
but are created during compilation.
If that was possible, then the git hash problem would reduce to a
special case of the first sort. (if it already is, where would I find
it documented?)
I've elaborated on this a bit, and provide my current attempt to
include a git hash into a binary at
https://github.com/s5k6/versionInfo
which demonstrates the current issues when trying so implement such an
approach using current Cabal. It also demonstrates the issue of the
current auto-generated `Paths_…` module depending on the `base`
package.
What do you think?
Cheers
Stefan
--
Stefan Klinger, Ph.D. -- computer scientist o/X
http://stefan-klinger.de /\/
https://github.com/s5k6 \
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