February 2009 - cabal-devel

[Hackage] #206: cabal-install should be able to generate haddock docs
by Hackage 03 Mar '09

03 Mar '09

#206: cabal-install should be able to generate haddock docs ---------------------------------+------------------------------------------ Reporter: guest | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: cabal-install tool | Version: 1.2.3.0 Severity: normal | Keywords: Difficulty: normal | Ghcversion: 6.8.2 Platform: Linux | ---------------------------------+------------------------------------------ It would be really cool if it could keep an index up to date as well. (I like to have offline docs for all installed packages, but it's a headache to keep current.) -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/206> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 16

darcs patch: rewrite of Distribution.Simple.Haddock
by Andrea Vezzosi 02 Mar '09

02 Mar '09

Thu Feb 19 16:37:38 CET 2009 Andrea Vezzosi <sanzhiyan(a)gmail.com> * rewrite of Distribution.Simple.Haddock In addition to (hopefully) making clear what's going on we now do the additional preprocessing for all the versions of haddock (but not for hscolour) and we run cpp before moving the files.

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[Hackage] #512: Use a proper exception for the 'die' utility function
by Hackage 02 Mar '09

02 Mar '09

#512: Use a proper exception for the 'die' utility function ----------------------------+----------------------------------------------- Reporter: duncan | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.6.0.1 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: Platform: | ----------------------------+----------------------------------------------- Currently the `die` function prints the error message to stderror and throws an exit with exception. This is not a good approach for library code. Instead it should throw an user error exception with the string message. A top level handler in `Distribution.Simple.main` or `cabal- install` should catch this, print it as before and throw an exit exception. See also #510 for an example of how this causes problems. The `readPackageDescription` ends up throwing the exit exception when it would be more helpful to clients for it to throw an ordinary exception containing the error message. -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/512> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 1

Cabal install broken with GHC 6.10.1.* HEAD
by Neil Mitchell 02 Mar '09

02 Mar '09

Hi, I've just installed GHC 6.10.1.20090225 which has set base as 3.0.3.0, instead of the 3.0.2.0 which GHC 6.10.1 had (I think). This causes cabal install to break, as it implicitly adds base == 3.0.2.0 which nothing has so nothing installs. Could a new version of cabal install be released that fixes this? I'm totally hooked on cabal install and now having upgraded GHC I've lost it. The likely result is that I'll have to downgrade my GHC because cabal is just too useful! Thanks Neil

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[Hackage] #505: use environment variable for location of config file
by Hackage 01 Mar '09

01 Mar '09

#505: use environment variable for location of config file ----------------------------------+----------------------------------------- Reporter: duncan | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: cabal-install tool | Version: Severity: normal | Keywords: Difficulty: very easy (<1 hour) | Ghcversion: Platform: | ----------------------------------+----------------------------------------- See http://haskell.org/pipermail/haskell-cafe/2009-February/056388.html We can currently specify the cabal config file on the command line but some situation it would be useful in to be able to specify it via an environment variable. This should be pretty easy for someone to do. The order of priority would be command line, env var, per-user default location. It should be an error to specify by the command line or env var a non-existant config file. -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/505> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

1 1

darcs patch: Select Configuration file via env var CABAL_CONFIG
by Paolo Losi 01 Mar '09

01 Mar '09

A patch for ticket: http://hackage.haskell.org/trac/hackage/ticket/505 Mon Feb 23 01:52:51 CET 2009 Paolo Losi <paolo.losi(a)gmail.com> * Select Configuration file via env var CABAL_CONFIG. New patches: [Select Configuration file via env var CABAL_CONFIG. Paolo Losi <paolo.losi(a)gmail.com>**20090223005251 Ignore-this: 26e5ded85cb69cb3a19cd57680a8a362 ] { hunk ./Distribution/Client/Config.hs 77 import Data.Monoid ( Monoid(..) ) import Control.Monad - ( when, foldM ) + ( when, foldM, liftM ) import qualified Data.Map as Map import qualified Distribution.Compat.ReadP as Parse ( option ) hunk ./Distribution/Client/Config.hs 91 ( URI(..), URIAuth(..) ) import System.FilePath ( (</>), takeDirectory ) +import System.Environment + ( getEnvironment ) import System.IO.Error ( isDoesNotExistError ) hunk ./Distribution/Client/Config.hs 233 loadConfig :: Verbosity -> Flag FilePath -> Flag Bool -> IO SavedConfig loadConfig verbosity configFileFlag userInstallFlag = addBaseConf $ do - configFile <- maybe defaultConfigFile return (flagToMaybe configFileFlag) + let sources = [ + ("commandline option", return . flagToMaybe $ configFileFlag), + ("env var CABAL_CONFIG", lookup "CABAL_CONFIG" `liftM` getEnvironment), + ("default config file", Just `liftM` defaultConfigFile) ] hunk ./Distribution/Client/Config.hs 238 + getSource [] = error "no config file path candidate found." + getSource ((msg,action): xs) = + action >>= maybe (getSource xs) (return . (,) msg) + + (source, configFile) <- getSource sources minp <- readConfigFile mempty configFile case minp of Nothing -> do hunk ./Distribution/Client/Config.hs 246 + notice verbosity $ "Config file path source is " ++ source ++ "." notice verbosity $ "Config file " ++ configFile ++ " not found." notice verbosity $ "Writing default configuration to " ++ configFile commentConf <- commentSavedConfig } Context: [TAG 0.6.2 Duncan Coutts <duncan(a)haskell.org>**20090219130720] [Update the README Duncan Coutts <duncan(a)haskell.org>**20090219130705] [Add missing other-modules Duncan Coutts <duncan(a)haskell.org>**20090218235206] [Add extra assertion into the top down dep planner Duncan Coutts <duncan(a)haskell.org>**20090218234650] [Bump version to 0.6.2 Duncan Coutts <duncan(a)haskell.org>**20090218231016] [Update changelog for 0.6.2 release Duncan Coutts <duncan(a)haskell.org>**20090218230918] [Tweaks to the bootstrap script Duncan Coutts <duncan(a)haskell.org>**20090218223943 Update Cabal lib version to 1.6.0.2 Implement a couple shell script coding style recommendations. ] [Disable the upgrade command for now. Duncan Coutts <duncan(a)haskell.org>**20090218221752] [Add warnings in the case that no remote servers have been specified Duncan Coutts <duncan(a)haskell.org>**20090216181424 It's not strictly an error but it can be rather confusing. ] [Put an explanation of the config file format at the top in comments. Duncan Coutts <duncan(a)haskell.org>**20090215190817] [Change the field order in the initial config file. Duncan Coutts <duncan(a)haskell.org>**20090215190727 Also update the name of one excluded field. ] [Put the default logging and reporting setting in the initial config file. Duncan Coutts <duncan(a)haskell.org>**20090215190524] [Complete the implementation of --build-summary=TEMPLATE Duncan Coutts <duncan(a)haskell.org>**20090215190254 Actually respect the new flag. It's actually a list of template files and all specified files get written to. This allows us to specify a default build log file and also have the user write to extra ones. The summary file template can contain $pkgid $compiler etc. ] [Rearrange user interface for build logging Duncan Coutts <duncan(a)haskell.org>**20090215185800 The new options (as described in ticket #501) are: --build-summary=TEMPLATE --build-log=TEMPLATE --remote-build-reporting=LEVEL where LELVEL `elem` [none,anonymous,detailed] ] [always check environment variables for HTTP proxy first Ganesh Sittampalam <ganesh.sittampalam(a)credit-suisse.com>**20090210230736] [Improve the cabal update notice Duncan Coutts <duncan(a)haskell.org>**20090209211844] [Don't report that packages are cached at the default verbosity level Duncan Coutts <duncan(a)haskell.org>**20090209201228 It's just not that useful. Report it at -v verobisty level, and change the text and formatting. ] [Fix #490, unpack now gives a proper error message. Andrea Vezzosi <sanzhiyan(a)gmail.com>**20090208165240 Ignore-this: 358dd291624f8858a52ae2ff27a7e0c2 ] [Use the new withTempDirectory function Duncan Coutts <duncan(a)haskell.org>**20090202012255 In particular it means that install will unpack packages into different temp dirs on each invocation which means that running install on the same package for different compilers at the same time should not clash. This is quite useful for testing. ] [Add compat withTempDirectory function Duncan Coutts <duncan(a)haskell.org>**20090202011917 This is already in Cabal HEAD but we cannot use that yet ] [Add homepage and bug-reports fields to .cabal file Duncan Coutts <duncan(a)haskell.org>**20090201225021] [Remove the prefernece and cabal lib version flags from the InstallFlags Duncan Coutts <duncan(a)haskell.org>**20090126012412 They are now in the ConfigExFlags instead. ] [Change the install and configure modules to use the extended config flags Duncan Coutts <duncan(a)haskell.org>**20090126011942] [Add ConfigExFlags into the configure, install and upgrade commands Duncan Coutts <duncan(a)haskell.org>**20090126010918 Not yet passed all the way through. ] [Add ConfigExFlags and related command Duncan Coutts <duncan(a)haskell.org>**20090126010132 This is for configure flags that we use in the configure command in the cabal command line tool that are not present in runghc Setup configure command line interface. These are flags that we are moving from the install command, so that we can also use them for the configure command. Initially it's just the flags for specifying package version preferences and the cabal library version. We'll add constraints later. ] [Remove unnecessary qualified use of ConfigFlags Duncan Coutts <duncan(a)haskell.org>**20090126003951] [Make configure use the dependency resolver Duncan Coutts <duncan(a)haskell.org>**20090125170951 This means it makes smarter decisions and also decions that are more consistent with those taken by the install command. ] [Update HTTP dep in the bootstrap script Duncan Coutts <duncan(a)haskell.org>**20090123160700] [Improve error message when ghc or ghc-pkg are mismatched or not found Duncan Coutts <duncan(a)haskell.org>**20090123160550] [Don't use grep -e, solaris does not like it Duncan Coutts <duncan(a)haskell.org>**20090123160443] [Fix some FIXMEs and do some TODOs in the list command Duncan Coutts <duncan(a)haskell.org>**20090123004810 Now properly prints if the haddock docs are installed and if the tarball is cached. It did print them before but it was lying. ] [Add initial implementation of cabal info Duncan Coutts <duncan(a)haskell.org>**20090119025202 It provides more detailed information on a particular package. Still a few TODOs. Fixes #361, #449 and #456. ] [Only print the config file location for the global --help Duncan Coutts <duncan(a)haskell.org>**20090116175900] [Update to using HTTP-4000.x Duncan Coutts <duncan(a)haskell.org>**20090116135646 This should fix a long-standing bug with http proxies (ticket #352) It should also make downloads faster, or at least use less memory. ] [Parse compiler field from old config files correctly Duncan Coutts <duncan(a)haskell.org>**20090116002851 Really old versions of cabal-install generated a default config containing "compiler: GHC". Sadly the new way we generate the config file parser from the command line parser means we end up with a case-sensitive parser as it only matches the exact command line flags. So we hack it and add in a traditional parser for that field only. Really the command line and config file infrastructure needs rewriting again. Sigh. ] [Improve the printing of config file field parse error messages Duncan Coutts <duncan(a)haskell.org>**20090116001421] [Read install dirs correctly from old-style .cabal/config files Duncan Coutts <duncan(a)haskell.org>**20090116001321 Should fix ticket #365 ] [Note in the README that zlib needs the zlib C lib package Duncan Coutts <duncan(a)haskell.org>**20090116000541] [Traditional /bin/sh portability fixes for bootstrap.sh Duncan Coutts <duncan(a)haskell.org>**20090115113227] [More improvments to the bootstrap.sh script Duncan Coutts <duncan(a)haskell.org>**20090115110612] [Rewrite the bootstrap.sh script Duncan Coutts <duncan(a)haskell.org>**20090115102210 Hopefully more useful and more robust. In particular it does not download and install packages where suitable versions are already installed. It also checks for deps. ] [Don't add installed constraints system packages that are not installed Duncan Coutts <duncan(a)haskell.org>**20090114143540 In particular fixes a problem (ticket #439) where we required the installed version of ghc-prim with compilers that do not have that package such as ghc-6.8 and older, hugs, nhc, lhc etc. ] [cabal update now reports if a newer version of cabal-install is available Duncan Coutts <duncan(a)haskell.org>**20090114133220] [Warn if a package index from a remote repo is 15 days or older Duncan Coutts <duncan(a)haskell.org>**20090114124827 For example it will print: Warning: The package list for 'hackage.haskell.org' is 16 days old. Run 'cabal update' to get the latest list of available packages. ] [Don't display the category in cabal list output Duncan Coutts <duncan(a)haskell.org>**20090114003549 It is probably not sufficiently useful to justify the space it takes. ] [In cabal list, always display available and installed versions Duncan Coutts <duncan(a)haskell.org>**20090114003329 Previously we omitted the line if it was not installed, or was not available. However that confused people because it was not obvious that it would list both. Now it shows something like: * foo Latest version available: 1.0 Latest version installed: [ Not installed ] ] [Print the location of the config file in the global --help Duncan Coutts <duncan(a)haskell.org>**20090113192215 Ticket #413 ] [Improve the cabal --help output Duncan Coutts <duncan(a)haskell.org>**20090113192058 Put the general info message at the top and make the explanation of installing a hackage package somewhat clearer. ] [Display examples in cabal install --help Duncan Coutts <duncan(a)haskell.org>**20090113161426 Examples: cabal install Package in the current directory cabal install foo Package from the hackage server cabal install foo-1.0 Specific version of a package cabal install 'foo < 2' Constrained package version ] [Print a newline after entering upload password Duncan Coutts <duncan(a)haskell.org>**20090113142604 So we end up with: Hackage password: Uploading test.tar.gz... rather than: Hackage password: Uploading test.tar.gz... ] [Respect the --package-db flag when compiling Setup.hs Duncan Coutts <duncan(a)haskell.org>**20081221184755 Fixes ticket #394. ] [Use a more precise package substitution test in improvePlan Duncan Coutts <duncan(a)haskell.org>**20081219215922 This is where we take a valid plan and we "improve" it by swapping installed packages for available packages wherever possible. This change is to the condition we use in deciding if it is safe to use the installed package in place of a reinstall. Previously we checked that the dependencies of the installed version were exactly the same as the dependencies we were planning to reinstall with. That was valid but rather conservative. It caused problems in some situations where the installed package did not exactly match the available package (eg when using development versions of a package or of ghc). What we do now is test if the extra constraints implied by selecting the installed version are consistent with the existing set of constraints. This involves threading the constraint set around. In theory this should even cope with adding additional packages to the plan as a result of selecting an installed package. ] [Use installed constraints instead of hiding versions of the base package Duncan Coutts <duncan(a)haskell.org>**20081219193740 We want to stop cabal-install from accidentally trying to upgrade the base package since this doesn't work in most cases. We used to achieve that by deleting the base package from the available package index. We now do it by leaving the package index as is and instead adding a constraint that we pick only an installed version of base. This is a nicer hack and has the potential to give better error messages. ] [Extend the invariant on the Constraints ADT Duncan Coutts <duncan(a)haskell.org>**20081219192309 It now carries around the original version of the database purely so that it can do a much more extensive consistency check. Packages are never gained or lost, just transfered between pots in various slightly tricky ways. ] [Fix constraint set handling for installed constraints Duncan Coutts <duncan(a)haskell.org>**20081219182328 A rather subtle bug. The code was actually correct but the transitionsTo assertion was not accounting for a transition between the case where a package's available version had been excluded and then the whole thing got excluded by a version constraint. It counted one side as a loss without a corresponding gain on the other side. ] [Add a install/upgrade --preference='foo < 2' flag Duncan Coutts <duncan(a)haskell.org>**20081218213849 This behaves just like the preferred-versions file in the hackage index but it can be specified on the command line or in a config file. ] [Generalise the way preferences are specified to the resolver Duncan Coutts <duncan(a)haskell.org>**20081218204917 We still provide a default global policy, but now we give a list of per-package preferences which can be on the version or installed state. Later preferences override earlier ones. ] [Workaround for a url parsing bug that breaks http proxies that need auth Duncan Coutts <duncan(a)haskell.org>**20081218165541 Diagnosis and patch from Valery V. Vorotyntsev. ] [Implement cabal install --constraint= Duncan Coutts <duncan(a)haskell.org>**20081216235032 Connect up the existing user interface with the new dep resolver api. ] [Have the dep resolver take constraints and targets separately Duncan Coutts <duncan(a)haskell.org>**20081216233446] [Add PackageInstalledConstraint to the PackageConstraint type Duncan Coutts <duncan(a)haskell.org>**20081215224538 This should be useful for things like preventing upgrading the base package for ghc. ] [A bit more renaming in the top down resolver Duncan Coutts <duncan(a)haskell.org>**20081215224324] [Take preferences into account in the bogus resolver Duncan Coutts <duncan(a)haskell.org>**20081215221728] [Mostly renaming and trivial refactoring Duncan Coutts <duncan(a)haskell.org>**20081215221034] [Change the dep resolver interface to pass constraints separately from targets Duncan Coutts <duncan(a)haskell.org>**20081215215634 This lets us specify constraints for packages that are not targets. ] [Rename and rearrange the PackagePreferences type Duncan Coutts <duncan(a)haskell.org>**20081215204836] [Don't re-export PackageName from Distribution.Client.Dependency Duncan Coutts <duncan(a)haskell.org>**20081215203617 It used to be a type alias. ] [Use the Platform type rather than passing around the OS and Arch separately Duncan Coutts <duncan(a)haskell.org>**20081215202856] [Bump version to 0.6.1 Duncan Coutts <duncan(a)haskell.org>**20081210224713] [Tidy up the unpack code Duncan Coutts <duncan(a)haskell.org>**20081210223633 Also fix a bug for tar files that contain entries for files without preceding entries for the directories they are in. ] [Clean up the code in Main Duncan Coutts <duncan(a)haskell.org>**20081210223242 Make the names more regular and set up the various flags in a more regular way. ] [Use (\_ -> []) instead of mempty to avoid funky Monoid instance Duncan Coutts <duncan(a)haskell.org>**20081210223106 This would let us build with ghc-6.4 or nhc if it were not for other issues. ] [Fix warning aobut -fffi in OPTIONS pragma Duncan Coutts <duncan(a)haskell.org>**20081203005449] [Mention where files get downloaded to at verbosity level verbose Duncan Coutts <duncan(a)haskell.org>**20081203004427] [Implement 'cabal unpack' command as in #390 Andrea Vezzosi <sanzhiyan(a)gmail.com>**20081113185923] [Remove use of tabs Duncan Coutts <duncan(a)haskell.org>**20081122163527] [Put explicit lower bound on version of base Duncan Coutts <duncan(a)haskell.org>**20081122163151 It does not build with ghc-6.4.2, missing Functor instance for Either. ] [Use a more general fix for "cabal install base" Duncan Coutts <duncan(a)haskell.org>**20081122163026 It's not specific to LHC. Normally we prevent upgrading of base since it's unlikely to work and would normally be accidental. However when the user explicitly asks to upgrade base then we let them do that and they can keep the pieces when it breaks. ] [Warn about use of tabs Duncan Coutts <duncan(a)haskell.org>**20081122154309] [Only send the base file name when uploading tarballs Duncan Coutts <duncan(a)haskell.org>**20080903230334 The server should ignore the dir part anyway but there's no need to send it in the first place. ] [Slightly better lhc support. Lemmih <lemmih(a)gmail.com>**20081121034338 Ignore-this: 9f51f465aa87d1c6677ca492f877ecd6 ] [TAG 0.6.0 Duncan Coutts <duncan(a)haskell.org>**20081011195420] [Bump version to 0.6.0 Duncan Coutts <duncan(a)haskell.org>**20081011195314] [Improve the README, better install instructions Duncan Coutts <duncan(a)haskell.org>**20081011185919 And slightly better intro guide to the main commands. ] [Bump versions of deps in the bootstrap script Duncan Coutts <duncan(a)haskell.org>**20081011184937] [Add Eq for a couple types in the anon build reports Duncan Coutts <duncan(a)haskell.org>**20081011184825] [Drop silly export Duncan Coutts <duncan(a)haskell.org>**20081011184805] [Apparnetly builds with unix-2.0 which is what came with ghc-6.6 Duncan Coutts <duncan(a)haskell.org>**20081010234836] [Fix the -i dir for compiling Setup.hs when it's the current dir Duncan Coutts <duncan(a)haskell.org>**20081010234558 map "" to "." ] [Tidy up the preferred-versions file parser Duncan Coutts <duncan(a)haskell.org>**20081010070105] [Bump version number and dependencies Duncan Coutts <duncan(a)haskell.org>**20081010065854] [Relax deps to build with ghc-6.10 Duncan Coutts <duncan(a)haskell.org>**20081007230701] [Handle build reports with missing logs better Duncan Coutts <duncan(a)haskell.org>**20081007230635] [Add DownloadFailed as a possible failure for installation Duncan Coutts <duncan(a)haskell.org>**20081007230418 Should now be caught during installing a bunch of packages and not cause immediate overall failure. It should instead be treated like any other package build failure and be reported at the end and only affect other dependent builds. ] [Fix search paths for compiling Setup.hs scrips Duncan Coutts <duncan(a)haskell.org>**20081007213630 and in particular for bootstrapping the Cabal lib. ] [Fix selecting paired packages Duncan Coutts <duncan(a)haskell.org>**20081007062930 Previously when we selected base 4 (and as a consequence slected base 3 too) we didn't properly trace the dependencies of base 3 so if nothing actually required base 3 then we ended up with base 3 in the solution but not with syb which it depends on. Consequently the solution was invalid. Now we select the paired package properly (hopefully). ] [Take preferred versions into account in dependency planning Duncan Coutts <duncan(a)haskell.org>**20081006055129 This means we can now globally prefer base 3 rather than 4. However we need to be slightly careful or we end up deciding to do silly things like rebuild haskell98 against base 3. That would happen because the h98 package doesn't constrain the choice to one or the other and we would prefer base 3. So we have to add that we really prefer whatever it uses currently (if any). ] [Pass the package suggested version constraints through to the resolver Duncan Coutts <duncan(a)haskell.org>**20081006042758 Not used yet. ] [Fix selection of paired packages Duncan Coutts <duncan(a)haskell.org>**20081006040616] [Read preferred versions from the package index Duncan Coutts <duncan(a)haskell.org>**20081006030259 From a file named 'preferred-versions' in the 00-index.tar.gz If there are several they are combined. Contents is like: base < 4 one suggested version constraint per line. ] [Refactor and update the hackage index reading code Duncan Coutts <duncan(a)haskell.org>**20081005202747] [Print more details about what is to be installed with -v Duncan Coutts <duncan(a)haskell.org>**20081005075556 Reports if installs are new or reinstalls and for reinstalls prints what dependencies have changed. ] [When finalising paired packages, cope with there being multiple choices Duncan Coutts <duncan(a)haskell.org>**20081005053821 For ordinary packages we selected a single version which means we added an equality constraint. As a consequence we used to assume there was only one version left when finalising. For paired packages there may be two versions left if the package did not directly constrain the choice to just one. If there is more than one version remaining then we have to pick between them. At the moment we still pick the highest version, but later we can take a global preference or polciy into account. ] [When selecting paired packages, select both. Duncan Coutts <duncan(a)haskell.org>**20081005053804] [Handle constraints on paired packages Duncan Coutts <duncan(a)haskell.org>**20081005051919 The trick is that when applying constraints to paired packages, the constraint has to exclude both packages at once. We exclude the pair together or not at all. If it would only exclude one then we discard the constraint. ] [Add the notion of paired packages to the Constraints ADT Duncan Coutts <duncan(a)haskell.org>**20081005013141 Packages like base-3 and base-4 are paired. This means they are supposed to be treated equivalently in some contexts. Paired packages are installed packages with the same name where one version depends on the other. ] [Make InstalledPackage an instance of PackageFixedDeps Duncan Coutts <duncan(a)haskell.org>**20081005012741] [Add the glue code to actully report excluded packages Duncan Coutts <duncan(a)haskell.org>**20081005001400 Now displayed in the output of install --dry-run -v ] [Have Constraints.constrain report the excluded packages Duncan Coutts <duncan(a)haskell.org>**20081004235006 Each time we apply a constraint we can end up excluding some extra package. Report that list of packages because it is quite interesting information to get insight into what the resolver is actually doing. ] [Separate the construction of the exclusion list from its use Duncan Coutts <duncan(a)haskell.org>**20081004234421 Previously directly inserted packages into the excluded package list. Now we generate a list of them and then add them. We want the list of newly excluded packages separately because it is interesting information to report to the user when -v is on. ] [Generalise the logging of selected and discarded packages Duncan Coutts <duncan(a)haskell.org>**20081004232555 Allow for selecting several packages in one go. Currently when we select a package we only list the over versions of the same package that that excludes, and not the other packages we exclude by applying the dependency constraints of the selected package. In future we would like to do that so we now report the package name of discards not just the version. Though we do group by the package name to avoid too much repition. ] [Fix infinite loop in the TopDown dependency resolver Andrea Vezzosi <sanzhiyan(a)gmail.com>**20080925181441 The loop occurred only if a package depended on another one with the same name, e.g. base-3.0.3.0 <- base-4.0.0.0 ] [small improvements to bootstrap Duncan Coutts <duncan(a)haskell.org>**20080926214828 patch sent in by brian0, ticket #357 ] [Update to the development version of the Cabal lib Duncan Coutts <duncan(a)haskell.org>**20080831225243 The branch of cabal-install that tracks Cabal-1.4 now lives at http://darcs.haskell.org/cabal-branches/cabal-install-0.5/ ] [Allow use of curl in bootstrap.sh Duncan Coutts <duncan(a)haskell.org>**20080826233400 Patch from jsnx. Fixes ticket #343. Also, use "cd blah; cd .." instead of "pushd blah; popd" as some shells lack pushd/popd ] [Relax version constraint on unix package Duncan Coutts <duncan(a)haskell.org>**20080826232851 Allows building with ghc-6.6.1 ] [Use mplus not mappend for combining tar filename checks Duncan Coutts <duncan(a)haskell.org>**20080826232606 mappend would join the error messages in the case that both checks failed. Also the monoid instance was new in base 3. ] [TAG 0.5.2 Duncan Coutts <duncan(a)haskell.org>**20080826214238] Patch bundle hash: 70c40d9a31b3a8bedec43eacacdf7c79bb11b86e

2 1

[Hackage] #513: Version of Cabal lib used to build Setup.hs is not tracked.
by Hackage 27 Feb '09

27 Feb '09

#513: Version of Cabal lib used to build Setup.hs is not tracked. ----------------------------+----------------------------------------------- Reporter: duncan | Owner: Type: defect | Status: new Priority: low | Milestone: Component: Cabal library | Version: 1.6.0.1 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: Platform: | ----------------------------+----------------------------------------------- Neil ran into these symptoms: {{{ Cabal documents itself as having a --builddir command to change the placement of dist stuff, which is fantastic. However, running with GHC 6.8.3, Cabal 1.6.0.2, I get: cabal build --builddir=../../../_make/Tools/ext/haddock-0.9/dist setup.exe: Unrecognised flags: --builddir=../../../_make/Tools/ext/haddock-0.9/dist i.e. cabal accepts the --builddir command, but the setup that cabal builds doesn't. Why? }}} Turns out it was because the `Setup` executable had been compiled previously using an older Cabal lib that did not understand the `--builddir` flag. Two things are needed to fix this, one is a proper checked specification of the command line interface so that cabal-install always knows what flags the `Setup` supports. The other is to track the version of the Cabal lib used to build the `Setup` and to recompile it if that changes. Note that this should happen automagically if we use a proper dependency tracking framework. In the mean time it'd require keeping an extra state file in `dist/setup`. -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/513> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

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[Hackage] #511: cabal-install too eager about resolving dependencies
by Hackage 27 Feb '09

27 Feb '09

#511: cabal-install too eager about resolving dependencies ---------------------------------+------------------------------------------ Reporter: guest | Owner: Type: defect | Status: new Priority: low | Milestone: Component: cabal-install tool | Version: 1.6.0.1 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: Platform: | ---------------------------------+------------------------------------------ I tried running this command: {{{ sudo cabal install test-framework test-framework-hunit test-framework- quickcheck test-framework-quickcheck2 }}} However, Cabal barfed with: {{{ Resolving dependencies... cabal: cannot configure test-framework-quickcheck-0.2.1. It requires QuickCheck >=1.1 && <2 For the dependency on QuickCheck >=1.1 && <2 there are these packages: QuickCheck-1.1.0.0 and QuickCheck-1.2.0.0. However none of them are available. QuickCheck-1.1.0.0 was excluded because QuickCheck-2.1.0.1 was selected instead QuickCheck-1.1.0.0 was excluded because test-framework-quickcheck2-0.2.1 requires QuickCheck >=2.1.0.0 QuickCheck-1.2.0.0 was excluded because QuickCheck-2.1.0.1 was selected instead QuickCheck-1.2.0.0 was excluded because test-framework-quickcheck2-0.2.1 requires QuickCheck >=2.1.0.0 }}} This seems to be because the quickcheck and quickcheck2 providers for test-framework by design depend on disjoint versions of QuickCheck. This should not confuse cabal install, since installing the packages sequentially in any order works fine: {{{ sudo cabal install test-framework test-framework-hunit test-framework- quickcheck sudo cabal install test-framework-quickcheck2 }}} -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/511> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

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[Hackage] #510: Don't call exitWithFailure on parse error, instead return error or throw exception
by Hackage 27 Feb '09

27 Feb '09

#510: Don't call exitWithFailure on parse error, instead return error or throw exception ----------------------------+----------------------------------------------- Reporter: guest | Owner: Type: enhancement | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.6.0.1 Severity: minor | Keywords: Difficulty: unknown | Ghcversion: Platform: | ----------------------------+----------------------------------------------- Please consider modifying ''readPackageDescription'' so that it doesn't end up calling ''dieWithLocation''. It seems the decision of what to do when a parse error occurs is better made in the application rather than the library. -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/510> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

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[Hackage] #509: Library dependency version check seems to fail
by Hackage 26 Feb '09

26 Feb '09

#509: Library dependency version check seems to fail ----------------------------+----------------------------------------------- Reporter: guest | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: Cabal library | Version: 1.6.0.2 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: 6.10.1 Platform: Linux | ----------------------------+----------------------------------------------- {{{ cabal install hlint }}} fails with: {{{ cabal: happy version >=1.17 is required but it could not be found. }}} However, happy 1.18.2 is available and after I install it manually hlint installation succeeds. {{{ * happy Synopsis: Happy is a parser generator for Haskell Latest version available: 1.18.2 Latest version installed: [ Not installed ] Homepage: http://www.haskell.org/happy/ License: BSD3 }}} -- Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/509> Hackage <http://haskell.org/cabal/> Hackage: Cabal and related projects

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