diff options
Diffstat (limited to 'nixpkgs/pkgs/development/haskell-modules/generic-builder.nix')
| -rw-r--r-- | nixpkgs/pkgs/development/haskell-modules/generic-builder.nix | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/haskell-modules/generic-builder.nix b/nixpkgs/pkgs/development/haskell-modules/generic-builder.nix index fc2c008be0c8..2724ff5d6220 100644 --- a/nixpkgs/pkgs/development/haskell-modules/generic-builder.nix +++ b/nixpkgs/pkgs/development/haskell-modules/generic-builder.nix @@ -78,6 +78,7 @@ in # same package in the (recursive) dependencies of the package being # built. Will delay failures, if any, to compile time. allowInconsistentDependencies ? false +, maxBuildCores ? 4 # GHC usually suffers beyond -j4. https://ghc.haskell.org/trac/ghc/ticket/9221 } @ args: assert editedCabalFile != null -> revision != null; @@ -250,6 +251,7 @@ stdenv.mkDerivation ({ '' + postPatch; setupCompilerEnvironmentPhase = '' + NIX_BUILD_CORES=$(( NIX_BUILD_CORES < ${toString maxBuildCores} ? NIX_BUILD_CORES : ${toString maxBuildCores} )) runHook preSetupCompilerEnvironment echo "Build with ${ghc}." @@ -375,6 +377,10 @@ stdenv.mkDerivation ({ runHook postHaddock ''; + # The scary sed expression handles two cases in v2.5 Cabal's package configs: + # 1. 'id: short-name-0.0.1-9yvw8HF06tiAXuxm5U8KjO' + # 2. 'id:\n + # very-long-descriptive-useful-name-0.0.1-9yvw8HF06tiAXuxm5U8KjO' installPhase = '' runHook preInstall @@ -389,7 +395,7 @@ stdenv.mkDerivation ({ rmdir "$packageConfFile" fi for packageConfFile in "$packageConfDir/"*; do - local pkgId=$( ${gnused}/bin/sed -n -e 's|^id: ||p' $packageConfFile ) + local pkgId=$( ${gnused}/bin/sed -n -e ':a' -e '/^id:$/N; s/id:\n[ ]*\([^\n]*\).*$/\1/p; s/id:[ ]*\([^\n]*\)$/\1/p; ta' $packageConfFile ) mv $packageConfFile $packageConfDir/$pkgId.conf done |