Old means that we have a newer version in Nixpkgs already. If there is a reason
for the old package to still exist, i.e. because some other package is still
referring to it, then Hydra will still build the package as a dependency, but
we won't want to build old packages on their own right.
1) Packages formerly called haskell-haskell-platform-ghcXYZ-VVVV.X.Y.Z are
now called haskell-platform-VVVV.X.Y.Z. The latest version can be
installed by running "nix-env -i haskell-platform".
2) The attributes haskellPackages_ghcXYZ.haskellPlatform no longer exist.
Instead, we have attributes like haskellPlatformPackages."2012_4_0_0".
(The last numeric bit must be quoted when used in a Nix file, but not on
the command line to nix-env, nix-build, etc.) The latest Platform has a
top-level alias called simply haskellPlatform.
3) The haskellPackages_ghcXYZ package sets offer the latest version of every
library that GHC x.y.z can compile. For example, if 2.7 is the latest
version of QuickCheck and if GHC 7.0.4 can compile that version, then
haskellPackages_ghc704.QuickCheck refers to version 2.7.
4) All intermediate GHC releases were dropped from all-packages.nix to
simplify our configuration. What remains is a haskellPackages_ghcXYZ set
for the latest version of every major release branch, i.e. GHC 6.10.4,
6.12.3, 7.0.4, 7.2.2, 7.4.2, 7.6.3, 7.8.2, and 7.9.x (HEAD snapshot).
5) The ghcXYZPrefs functions in haskell-defaults.nix now inherit overrides
from newer to older compilers, i.e. an override configured for GHC 7.0.4
will automatically apply to GHC 6.12.3 and 6.10.4, too. This change has
reduced the redundancy in those configuration functions. The downside is
that overriding an attribute for only one particular GHC version has become
more difficult. In practice, this case doesn't occur much, though.
6) The 'cabal' builder has a brand-new argument called 'extension'. That
function is "self : super : {}" by default and users can override it to
mess with the attribute set passed to cabal.mkDerivation. An example use
would be the definition of darcs in all-packages.nix:
| darcs = haskellPackages.darcs.override {
| cabal = haskellPackages.cabal.override {
| extension = self : super : {
| isLibrary = false;
| configureFlags = "-f-library " + super.configureFlags or "";
| };
| };
| };
In this case, extension disables building the library part of the package
to give us an executable-only version that has no dependencies on GHC or
any other Haskell packages.
The 'self' argument refers to the final version of the attribute set and
'super' refers to the original attribute set.
Note that ...
- Haskell Platform packages always provide the Haddock binary that came with
the compiler.
- Haskell Platform 2009.2.0.2 is broken because of build failures in cgi and
cabal-install.
- Haskell Platform 2010.1.0.0 is broken becasue of build failures in cgi.
By now, it happened twice that a commit broke GHC and thus all Haskell packages
we have in Nixpkgs. On such an occasion, I receive well in excess of 3000
notification e-mails from Hydra, and then I receive another 3000 e-mails after
the bug has been fixed. Under these circumstances, subscribing to these
notifications makes no sense for me.
svn path=/nixpkgs/trunk/; revision=33392
The new files ...
* conform to the coding guidelines,
* consistently specify meta.maintainers and meta.platforms,
* have proper descriptions and licenses as specified in their Cabal file, and
* take advantage of the new cabal.nix extensions, i.e. proper
distinction between buildInputs and propagatedBuildInputs.
Furthermore, the following updates were performed:
* haskell-Ranged-sets: updated to version 0.3.0
* haskell-Shellac-haskeline: updated to version 0.2.0.1
* haskell-cpphs: updated to version 1.12
* haskell-hslogger: updated to version 1.1.5
* haskell-xml: updated to version 1.3.9
* haskell-HDBC-postgresql: updated to version 2.3.2.0
* haskell-HDBC-sqlite3: updated to version 2.3.3.0
* haskell-HDBC: updated to version 2.3.1.0
* haskell-base-unicode-symbols: updated to version 0.2.2.1
* haskell-convertible: updated to version 1.0.11.0
* haskell-monad-control: updated to version 0.2.0.2
* haskell-murmur-hash: updated to version 0.1.0.4
* haskell-repa: updated to version 2.1.1.3
* haskell-statistics: updated to version 0.9.0.0
* haskell-ansi-terminal: updated to version 0.5.5
haskell-maybench was dropped, because it cannot be built with recent
versions of Cabal:
Configuring maybench-0.2.4.1...
Setup: At least the following dependencies are missing:
Cabal >=1.2 && <1.5
svn path=/nixpkgs/trunk/; revision=28446
