Move man/dhall.1 to data files

[vmchale]

This means that after running cabal install dhall (from e.g. hackage) the manpage will be installed to share/.... This is what hlint does, for instance.

[german1608]

👍

[sjakobi]

Does Cabal offer any guidance on how to expose man pages or similar files? Are there any related tickets?

The documentation for data-files says

A list of files to be installed for run-time use by the package.

Since the man page is not used at run-time by the package, I wonder whether this might actually be an abuse of this feature…

[vmchale]

Well, it's common enough :p, see e.g. https://github.com/ndmitchell/hlint/blob/master/hlint.cabal#L23

[Gabriella439]

@sjakobi: My understanding is that this is an idiomatic use of data-files. The description for the option is misleading, but anything under data-files gets installed under a share directory, which plays a role analogous to /usr/local/share. So in other words, ./docs and ./man subdirectories are normal and expected underneath such a share directory.

[sjakobi]

Thanks for the explanation! :)