Allow reinstalling packages

Question

UnkindPartition opened this issue 11 years ago · comments

register throws an error if the package is already installed.

So, we should either use update instead of register, or ensure that ids are unique.

How does GHC do it?

Roman Cheplyaka · Answer 1 · Tue May 21 2013 23:27:40 GMT+0800 (China Standard Time)

Cabal actually calls update rather than register for GHC (see reregisterInvocation in Cabal source).

Roman Cheplyaka · Answer 2 · Tue May 21 2013 23:36:55 GMT+0800 (China Standard Time)

And register isn't used anywhere, so we don't need in haskell-packages either.