On 18 July 2010 21:23, Andrew Coppin
As somebody who occasionally releases (admittedly useless) packages on Hackage, it's really quite irritating that there isn't an easy way to say what changed.
(As for scanning a repo to find changes, that's very low-level, you'd need a backend for every possible version control system, and for those people who don't even use source control, it's not going to work at all. Not to mention people who use source control, but don't have anywhere to put a repo online...)
Hi Andrew I'll look to adding textual diff to my Cabal diff tool - Precis. Currently it parses the modules in a package and compares metrics on the source files between project revisions to identify semantic changes. Unfortunately the results are often very poor in practice - for the QuickCheck revisions that Don posted above it didn't generate any differences. Though lower tech, textual diffs might actually be better than semantic ones with false negatives.