May 2008 - cabal-devel

patch applied (cabal): Remove a test for the specific kind of exception for nhc98 compatibility
by Duncan Coutts 06 May '08

06 May '08

Tue May 6 03:28:04 PDT 2008 Duncan Coutts <duncan(a)haskell.org> * Remove a test for the specific kind of exception for nhc98 compatibility This was the check for ghc-pkg failing. We cannot check for the exception being an ExitException since that assumes ghc's representation of the Exception type, whereas nhc98 defines: type Exception = IOError M ./Distribution/Simple/GHC.hs -6 +2 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20080506102804-adfee-4c87c721…

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darcs patch: Add new utils, duplicates, duplicatesBy ... (and 4 more)
by Duncan Coutts 05 May '08

05 May '08

All, If you want to play with the new dependency resolver stuff then here is a bunch of patches. Dependency resolvers are now expected to produce a valid InstallPlan. There is new error checking code to tell you all the ways in which the InstallPlan your dep resolver produced, is invalid. The current dep resolver can sometimes produce valid install plans but can easily be persuaded into making invalid ones, especially if you have many broken packages installed. So there's still some work to be done to make the dep resolvers more pluggable and to try to patch up the current dep resolver a bit. Duncan Sun May 4 20:45:30 BST 2008 Duncan Coutts <duncan(a)haskell.org> * Add new utils, duplicates, duplicatesBy and mergeBy Sun May 4 21:17:42 BST 2008 Duncan Coutts <duncan(a)haskell.org> * Use the mergeBy from the Utils module Sun May 4 21:18:57 BST 2008 Duncan Coutts <duncan(a)haskell.org> * Improve InstallPlan error checking and reporting Instead of just reporting that a plan is invalid, produce a detailed list of reasons why it is invalid. This should be useful for people debugging dependency resolvers. Also rename the complete property to closed, since the property is about the set being closed under the dependency relation. Also re-use the PackageIndex functions for checking the validity conditions rather than re-implementing the checks locally. Mon May 5 10:05:13 BST 2008 Duncan Coutts <duncan(a)haskell.org> * Packages are only invalid if they have more than zero problems. Mon May 5 10:17:43 BST 2008 Duncan Coutts <duncan(a)haskell.org> * Switch from DepGraph to InstallPlan The dependency resolver has had to be extended in a slightly hacky way to gather the extra information needed by an install plan. In particular it requires the flags to use to configure each package, the actual versions of dependencies to use and all of the installed packages and their closure of dependencies. However the current resolver is fairly naive and so can be easily persuaded into producing an invalid install plan, in which case you'll get a detailed list of reasons as to why it is invalid.

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patch applied (cabal-install): Update for flipped order of args for PackageIndex.insert
by Duncan Coutts 05 May '08

05 May '08

Sun May 4 12:37:22 PDT 2008 Duncan Coutts <duncan(a)haskell.org> * Update for flipped order of args for PackageIndex.insert M ./Hackage/Install.hs -1 +1 M ./Hackage/InstallPlan.hs -1 +1 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20080504193722-adfee-…

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patch applied (cabal-branches/cabal-1.4): Cope better with ghc bug #2201, display a better error message
by Duncan Coutts 05 May '08

05 May '08

Mon May 5 01:57:46 PDT 2008 Duncan Coutts <duncan(a)haskell.org> * Cope better with ghc bug #2201, display a better error message Otherwise it can (and does) really confuse people. The problem is that the command $ ghc-pkg-6.9 describe '*' --user returns a non-zero exit code if the user package db is empty. ghc-pkg intends this exit code to tell us if the query returned any results (one can use more complex queries as tests) but Cabal interprets it as failure. Indeed we cannot distinguish it from any other kind of failure from ghc-pkg. M ./Distribution/Simple/GHC.hs -1 +11 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/2008050508…

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patch applied (cabal-branches/cabal-1.4): Add PackageIndex.dependencyCycles
by Duncan Coutts 05 May '08

05 May '08

Sun May 4 06:16:26 PDT 2008 Duncan Coutts <duncan(a)haskell.org> * Add PackageIndex.dependencyCycles Finds any cycles (strongly connected components) in the dependencies of set of packages. This is useful for checking the correctness of installation plans. M ./Distribution/Simple/PackageIndex.hs +18 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/2008050413…

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patch applied (cabal-branches/cabal-1.4): Change dependencyInconsistencies to not take the pseudo top package
by Duncan Coutts 05 May '08

05 May '08

Sun May 4 06:08:02 PDT 2008 Duncan Coutts <duncan(a)haskell.org> * Change dependencyInconsistencies to not take the pseudo top package The one case where we need the pseudo top package we can use PackageIndex.insert instead to get the same effect and there are other cases in cabal-install where we do not want a pseudo top package. M ./Distribution/Simple/Configure.hs -1 +3 M ./Distribution/Simple/PackageIndex.hs -3 +2 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/2008050413…

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patch applied (cabal-branches/cabal-1.4): Reverse the order of the args to PackageIndex.insert
by Duncan Coutts 05 May '08

05 May '08

Sun May 4 06:03:17 PDT 2008 Duncan Coutts <duncan(a)haskell.org> * Reverse the order of the args to PackageIndex.insert To take the index last like the other functions and like Data.Map. It is actually more convenient that way round. M ./Distribution/Simple/PackageIndex.hs -2 +2 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/2008050413…

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patch applied (cabal-branches/cabal-1.4): Revert the change about the --internal flag and a warning about haddock
by Duncan Coutts 05 May '08

05 May '08

Thu May 1 15:31:31 PDT 2008 Duncan Coutts <duncan(a)haskell.org> * Revert the change about the --internal flag and a warning about haddock Just a bit of confusion over the behaviour of the --executable flag. M ./Distribution/Simple/Haddock.hs -3 +2 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/2008050122…

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patch applied (cabal-branches/cabal-1.4): Document --internal in Cabal.xml
by Duncan Coutts 05 May '08

05 May '08

Thu May 1 08:33:56 PDT 2008 Joachim Breitner <mail(a)joachim-breitner.de> * Document --internal in Cabal.xml M ./doc/Cabal.xml +9 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/2008050115…

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patch applied (cabal-branches/cabal-1.4): With --executable, --internal just adds --ignore-all-exports
by Duncan Coutts 05 May '08

05 May '08

Thu May 1 08:25:44 PDT 2008 Joachim Breitner <mail(a)joachim-breitner.de> * With --executable, --internal just adds --ignore-all-exports M ./Distribution/Simple/Haddock.hs -1 +6 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.4/_darcs/patches/2008050115…

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