December 2009 - cabal-devel

[Hackage] #485: preference on base version should only be applied for open constraints
by Hackage 18 Dec '09

18 Dec '09

#485: preference on base version should only be applied for open constraints ---------------------------------+------------------------------------------ Reporter: duncan | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: cabal-install tool | Version: 1.6.0.1 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: Platform: | ---------------------------------+------------------------------------------ Currently we apply the preference on the base version. That means that if you have base 3 and 4 available then for dependencies like: {{{ build-depends: base >= 2 }}} or {{{ build-depends: base >= 3 && < 5 }}} Then we end up picking base 3. That makes perfect sense in the first case. In the first case the developer clearly did not think about base 4. However in the second case they clearly have thought about it and yet we end up picking base 3. On balance it is probably better to pick base 4 in the second case even though both are allowed. One suggestion for how to handle soft constraints on the version of base is to say that we only apply the preference if the version is not bounded above. If it is bounded above then we use no preference and end up picking the highest version available. This policy cannot be expressed in the simple preferred versions syntax. It's probably ok to hard code it for base for now. This will require generalising the interface to the constraint solver to supply preferences in a slightly different form. It may need to be as a function from a list of possible versions to the selected version. The function would also be supplied with the package it's for, the dependency and the list of installed versions since it may want to take any of these into account and it is needed to express the above policy. This is related to the splitting of preferences into real preferences and hacks (see #483). -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/485> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

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patch applied (cabal): Make lack of language extensions an error not a warning
by Duncan Coutts 16 Dec '09

16 Dec '09

Wed Dec 16 12:45:05 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Make lack of language extensions an error not a warning Also improve the error message somewhat M ./Distribution/Simple/Configure.hs -3 +5 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20091216204505-adfee-ce68c746…

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patch applied (cabal): Specify DOCTYPE when generating userguide html
by Duncan Coutts 16 Dec '09

16 Dec '09

Tue Dec 15 19:53:21 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Specify DOCTYPE when generating userguide html Ignore-this: 9d3b09e3c593a8d5f39b691ef2ceb377 Useless docbook tools. M ./Makefile +6 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20091216035321-adfee-245fc526…

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patch applied (cabal): Registering packages needs all the package dbs listed
by Duncan Coutts 16 Dec '09

16 Dec '09

Fri Dec 11 05:32:33 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Registering packages needs all the package dbs listed Ignore-this: 249cc7ae1452bfa8e970f0ba24d4ff5f Important for the case of registering inplace when we're using a specific package db, e.g. when doing isolated builds. M ./Distribution/Simple/Build.hs -1 +2 M ./Distribution/Simple/Compiler.hs -1 +1 M ./Distribution/Simple/GHC.hs -9 +9 M ./Distribution/Simple/Program/HcPkg.hs -9 +23 M ./Distribution/Simple/Register.hs -21 +21 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20091211133233-adfee-1a83cc15…

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patch applied (cabal): Switch a few distribution checks to build warnings
by Duncan Coutts 16 Dec '09

16 Dec '09

Wed Dec 2 06:35:49 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Switch a few distribution checks to build warnings Ignore-this: bbadf449113d009b51837bc1dd3488af In particular the one about -prof since this leads to borked packages. M ./Distribution/PackageDescription/Check.hs -7 +9 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20091202143549-adfee-21dd681f…

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Re: [Haskell-cafe] changelogs for packages on Hackage
by Duncan Coutts 16 Dec '09

16 Dec '09

On Wed, 2009-12-16 at 11:18 +0200, Valery V. Vorotyntsev wrote: > It would be nice if Hackage displayed ``recent changes'' of a package. > [severity: wishlist] > > You see, I am subscribed to the ``hackage - recent additions'' feed > [http://hackage.haskell.org/packages/archive/recent.rss] and receive > entries that look like this: > > Cabal 1.8.0.2 > Added by DuncanCoutts, Wed Dec 16 04:19:24 UTC 2009. > A framework for packaging Haskell software > > This is sweet. But how can I tell what's new in Cabal since 1.6.0.3? > (`Cabal' is just an example here.) Yep it's a fair point. http://hackage.haskell.org/trac/hackage/ticket/299 Some packages have a changelog file in them that we could display, though most don't. For those that do have a changelog, how we avoid displaying all of history is a bit tricky. For those that do not, ideally we could derive a changelog by looking at the difference in the API. The latter requires a tool we've not written yet. Duncan

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Re: [Haskell-cafe] changelogs for packages on Hackage
by Bas van Dijk 16 Dec '09

16 Dec '09

On Wed, Dec 16, 2009 at 10:18 AM, Valery V. Vorotyntsev <valery.vv(a)gmail.com> wrote: > It would be nice if Hackage displayed ``recent changes'' of a package. Yes I wish for this too. These are the hackage tickets on this: "Add Changelog summary feature to sdist" http://hackage.haskell.org/trac/hackage/ticket/244 "Add changelog feature to hackagedb" http://hackage.haskell.org/trac/hackage/ticket/299 Bas

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patch applied (cabal-branches/cabal-1.8): Specify DOCTYPE when generating userguide html
by Duncan Coutts 15 Dec '09

15 Dec '09

Tue Dec 15 19:53:21 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Specify DOCTYPE when generating userguide html Ignore-this: 9d3b09e3c593a8d5f39b691ef2ceb377 Useless docbook tools. M ./Makefile +6 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.8/_darcs/patches/2009121603…

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patch applied (cabal-branches/cabal-1.8): Note release number and date in changelog
by Duncan Coutts 15 Dec '09

15 Dec '09

Tue Dec 15 19:13:17 PST 2009 Duncan Coutts <duncan(a)haskell.org> * Note release number and date in changelog Ignore-this: b645542a479005d42ae7894602be83ca M ./changelog -1 +1 View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.8/_darcs/patches/2009121603…

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patch applied (cabal-branches/cabal-1.8): TAG Cabal 1.8.0.2 release
by Ian Lynagh 15 Dec '09

15 Dec '09

Tue Dec 15 04:47:11 PST 2009 Ian Lynagh <igloo(a)earth.li> tagged Cabal 1.8.0.2 release View patch online: http://darcs.haskell.org/cabal-branches/cabal-1.8/_darcs/patches/2009121512…

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