On Fri, 23 Jul 2010, S. Doaitse Swierstra wrote:
I uploaded a version of the uu-parsinglib to hackage. Only later I discovered that it depended on a verion of base >= 4.2, whereas I indicate > 4 in my .cabal file.
I repaired this by uploading a new version in which only the cabal file has changed. This raises the following questions:
- the Haskell code did not change, but I still had to bump the version number?
If you follow the Package Version Policy then increasing the version number from 2.4.1 to 2.4.1.1 would be the right thing to do.
- can I remove the incorrect version or indicate that it is superseded by the new version?
A new version is automatically preferred on installation and thus somehow hides older versions.
- since I do not have a wide variety of Haskell installations and package versions on my machine, it would be very nice if the hackage server could test a package against the extremes of the indicated dependency ranges before installing. This would have prevented the mistake I made (and which undoubtedly others will make too)
Sure, tool support for dependency checking is highly wanted, but still does not exist.