#199: when installing a new version of GHC, there should be a way to upgrade my packages ---------------------------------+------------------------------------------ Reporter: guest | Owner: Type: enhancement | Status: new Priority: normal | Milestone: cabal-install-0.8 Component: cabal-install tool | Version: 1.2.3.0 Severity: normal | Resolution: Keywords: | Difficulty: easy (<4 hours) Ghcversion: 6.8.2 | Platform: Linux ---------------------------------+------------------------------------------ Comment (by thaldyron): The new patch (see attachment) adds world-file support for the 0.7 HEAD branch. Whenever you install a package, an entry is added to the world-file, storing the specified package-name, package-version, and user flags. For example, the entry generated by {{{ # cabal install stm-io-hooks --flags="-debug" }}} looks like this: {{{ stm-io-hooks -any --flags="-debug" }}} The requires dependencies of a packge, however, are not recorded in the world file, only the packages explicitly requested by the user. To rebuild all previously installed packages (e.g. on updating GHC), use {{{ # cabal install world }}} The previous version of this patch supported the "cabal upgrade world" command, which is now disabled until "cabal upgrade" is fixed. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/199#comment:10 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects