- cabal-devel - Haskell.org

patch applied (cabal): "Drop assertion checking in the old solver"
by Duncan Coutts 18 Aug '11

18 Aug '11

Thu Aug 18 10:21:18 PDT 2011 Duncan Coutts <duncan(a)community.haskell.org> * Drop assertion checking in the old solver Make it a bit faster. M ./cabal-install/cabal-install.cabal -3 +1 View patch online: http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal;a=darcs_commitdiff;h=…

1 0

patch applied (cabal): "Update version constraint on the Cabal library, for 1.12 release."
by Duncan Coutts 18 Aug '11

18 Aug '11

Thu Aug 18 10:19:55 PDT 2011 Duncan Coutts <duncan(a)community.haskell.org> * Update version constraint on the Cabal library, for 1.12 release. M ./cabal-install/cabal-install.cabal -1 +1 View patch online: http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal;a=darcs_commitdiff;h=…

1 0

patch applied (cabal): "Add cabal sdist --zip flag for creating zip archives"
by Duncan Coutts 18 Aug '11

18 Aug '11

Thu Aug 18 10:17:21 PDT 2011 Duncan Coutts <duncan(a)community.haskell.org> * Add cabal sdist --zip flag for creating zip archives Handy if you want to send sources to people who do not grok .tar.gz Requires that the 'zip' program be installed (unlike for .tar.gz where we do it internally so that it works on all systems). M ./cabal-install/Distribution/Client/Setup.hs -2 +54 M ./cabal-install/Distribution/Client/SrcDist.hs -8 +50 M ./cabal-install/Main.hs -4 +4 View patch online: http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal;a=darcs_commitdiff;h=…

1 0

Re: [Hackage] #299: Add changelog feature to hackagedb
by Hackage 18 Aug '11

18 Aug '11

#299: Add changelog feature to hackagedb --------------------------------+------------------------------------------- Reporter: guest | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: hackageDB website | Version: HEAD Severity: normal | Keywords: Difficulty: normal | Ghcversion: Platform: | --------------------------------+------------------------------------------- Comment(by dsfox): Replying to [comment:10 ross]: > I think that a changelog format that parsed to {{{[(Version, String)]}}} would be sufficient, though the {{{String}}} might require (Haddock- style?) markup. The additional info in Debian or Gentoo changelogs is available via the version number. Surely we also need to know when the entry was made and who made it? -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/299#comment:13> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 0

Re: [Haskell-cafe] writing a good Setup.hs is *hard* (was: broken on install encoding 0.6.6)
by Antoine Latter 17 Aug '11

17 Aug '11

On Wed, Aug 17, 2011 at 9:11 AM, Rogan Creswick <creswick(a)gmail.com> wrote: > On Wed, Aug 17, 2011 at 6:29 AM, Gang <yugang.bj(a)gmail.com> wrote: >> >> sorry to bother >> > > Not in the least! > > I was trying to figure out what problem you were encountering, and I > learned a lot. I never did recreate your problem, but in the process > I ran into a whole host of other annoyances and strange situations > relating to slightly broken cabal files and cabal build intricacies > that confound our existing tools. I think the only way to do this sort of thing today is to take the complexity in the Setup.hs and put it in its own executable. Then you can package up the executable with Cabal and specify proper dependencies, and then in the original package require the new executable as a build tool. (You might be able to perform a magic trick to get the build-tool treated as a proper dependency that Cabal will install for you, but that is only implied by http://hackage.haskell.org/trac/hackage/ticket/227 ). I swear this discussion has come up before, but I can't find anything in the mail-list archives for cabal-dev, or on Trac. The downside, of course, is that you have to be able to thread your install logic through a command-line tool, which may not work well in this case. Antoine

1 0

Re: [Haskell-cafe] writing a good Setup.hs is *hard* (was: broken on install encoding 0.6.6)
by Antoine Latter 17 Aug '11

17 Aug '11

Ccing cabal-dev. On Aug 17, 2011 9:12 AM, "Rogan Creswick" <creswick(a)gmail.com> wrote: > > On Wed, Aug 17, 2011 at 6:29 AM, Gang <yugang.bj(a)gmail.com> wrote: > > > > sorry to bother > > > > Not in the least! > > I was trying to figure out what problem you were encountering, and I > learned a lot. I never did recreate your problem, but in the process > I ran into a whole host of other annoyances and strange situations > relating to slightly broken cabal files and cabal build intricacies > that confound our existing tools. > > I don't mean to pick on encoding or HaXml - I've seen the same kinds > of issues in many, many Haskell packages (including most of the > packages I've written myself) these are just the ones I ran into > today. (and I am quite serious when I say that writing a good Setup.hs > is very, very, difficult). My objective is just to motivate a minor > change to cabal that would help to make this easier. > > On to the build problems: > > encoding-0.6.6 uses it's own source during the build process! It > actually has to be partially compiled before the build tool can build > encoding (!). I'm *amazed* that this actually works at all > (impressed, too), and indeed, it doesn't work with cabal-dev, which is > unfortunate: cabal-dev would have identified one of the dependency > issues in HaXml 1.19 (pretty is an undocumented dependency, although I > am unsure if that was true at the time 1.19 and encoding-0.6.6 were > released. I haven't tracked the pretty dependency down to the exact > source - it could be a transitive dep introduced by a recent version > of something HaXml 1.19 needs. Per my subject line - this is > amazingly difficult - keep in mind that we're not talking about > building *packages*, this is just to build the *build tool*, and none > of this is documented. How long before it is effectively impossible > to recreate the circumstances that result in a successful > encoding-0.6.6 build?). > > cabal-dev can't build encoding-0.6.6 because the encoding source that > is referenced from encoding's Setup.hs depends on (at least) HaXml >= > 1.19 && < 1.22.5; this is OK with cabal, since cabal-install installs > a necessary HaXml into your user package db prior to building > encoding's Setup.hs (modulo the missing upper version bound). > Therefore HaXml "just happens" to be visible when cabal builds > Setup.hs -- a build step that cabal-dev isn't capable of controlling > (and probably never will be -- we could intercept system calls, but > that's difficult when only supporting one OS, much less three). > > You can, of course, manually install HaXml to your local package db > and then cabal-dev install encodings, but that's somewhat of a hack > (and you'll find that the current HaXml won't work for the current > encodings release, as Gang Yu did). > > Adding a section to the cabal file that specifies build dependencies > for Setup.hs would make some very important parts of this process > obvious - and it would *greatly* assist in debugging failing builds, > not to mention allowing us to make use of the extensive libraries on > hackage to write more expressive build systems. (We could actually > use openshake in Setup.hs, once it's released, for example!) > > I've floated the idea past a number of Haskell programmers with > positive responses, and there is a GSOC ticket that provides some more > details (the project was not selected - no students proposed to work > on it): > > http://hackage.haskell.org/trac/summer-of-code/ticket/1602 > > --Rogan > > > Regards > > Gang > > On 08/17/2011 04:59 PM, Gang Yu wrote: > > > > hi, cafe: > > > > I go through to the encoding package installation problem again. > > > > cabal install encoding > > Resolving dependencies... > > /tmp/encoding-0.6.68093/encoding-0.6.6/dist/setup/setup: 4: Syntax error: > > ";" unexpected > > > > when I have a check on the this issue, I get: > > > > file > > ~/.cabal/packages/ hackage.haskell.org/encoding/0.6.6/encoding-0.6.6/dist/setup/setup > > /home/gang/.cabal/packages/ hackage.haskell.org/encoding/0.6.6/encoding-0.6.6/dist/setup/setup: > > ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked > > (uses shared libs), for GNU/Linux 2.6.27, not stripped > > > > My machine is: > > > > gang@gang-laptop:~$ uname -a > > Linux gang-laptop 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC > > 2011 i686 i686 i386 GNU/Linux > > > > is this related? How can I manually install the package from scratch? Any > > helps or directs will be appreciated > > > > Thanks > > Gang > > > > > > _______________________________________________ > > Haskell-Cafe mailing list > > Haskell-Cafe(a)haskell.org > > http://www.haskell.org/mailman/listinfo/haskell-cafe > > > > > > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe(a)haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe

1 0

Re: [Hackage] #299: Add changelog feature to hackagedb
by Hackage 15 Aug '11

15 Aug '11

#299: Add changelog feature to hackagedb --------------------------------+------------------------------------------- Reporter: guest | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: hackageDB website | Version: HEAD Severity: normal | Keywords: Difficulty: normal | Ghcversion: Platform: | --------------------------------+------------------------------------------- Changes (by dsfox): * cc: ddssff@… (removed) -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/299#comment:12> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 0

Re: [Hackage] #299: Add changelog feature to hackagedb
by Hackage 15 Aug '11

15 Aug '11

#299: Add changelog feature to hackagedb --------------------------------+------------------------------------------- Reporter: guest | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: hackageDB website | Version: HEAD Severity: normal | Keywords: Difficulty: normal | Ghcversion: Platform: | --------------------------------+------------------------------------------- Changes (by dsfox): * cc: ddssff@… (added) -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/299#comment:11> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 0

Re: [Hackage] #244: Add Changelog summary feature to sdist
by Hackage 15 Aug '11

15 Aug '11

#244: Add Changelog summary feature to sdist ----------------------------+----------------------------------------------- Reporter: guest | Owner: Type: enhancement | Status: new Priority: low | Milestone: Component: Cabal library | Version: 1.2.3.0 Severity: normal | Keywords: Difficulty: normal | Ghcversion: 6.8.2 Platform: | ----------------------------+----------------------------------------------- Changes (by dsfox): * cc: ddssff@… (added) -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/244#comment:15> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 0

[Hackage] #873: cabal check: Warn if package misses changelog file
by Hackage 15 Aug '11

15 Aug '11

#873: cabal check: Warn if package misses changelog file ----------------------------------+----------------------------------------- Reporter: nomeata | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: HEAD Severity: normal | Keywords: Difficulty: very easy (<1 hour) | Ghcversion: Platform: | ----------------------------------+----------------------------------------- To encourage author to write ChangeLog files, and as a first step to eventually fix #244 and #299, this makes cabal check warn if no changelog is found in the package -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/873> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 1