Thu Mar 27 14:34:11 PDT 2008 Duncan Coutts
* Parse Bool fields using more cunning, allow new parses with a warning
We want to allow case-insensitive parsing however we don't want
packages being uploaded to hackage that will break older versions of
Cabal. If we allow new valid parses then we will end up breaking
stuff. So what we really want to do is allow new parses but warn if
they're not ones that older versions of Cabal would have allowed. So
long as hackage rejects pakcages that have parse warnings then we can
prevent new .cabal files appearing on hackage that would break older
Cabal versions. Our current parser (ReadP) does not support warnings
so we have to handle the bool fields specially in the parser wrapper
layer that we added to handle errors and warnings. This can go away
when we use a parser with support for error and warning messages.
M ./Distribution/InstalledPackageInfo.hs -3 +2
M ./Distribution/PackageDescription/Parse.hs -4 +2
M ./Distribution/ParseUtils.hs -2 +20
View patch online:
http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/20080327213...
