nixpkgs/pkgs/development/haskell-modules/generic-builder.nix
Pepe Iborra d68033afae haskellPackages.mkDerivation: add doHaddockInterfaces option
This adds a new builder option `doHaddockInterfaces` to enable the -haddock flag in GHC,
which results in Haddock comments parsed at compile-time and embedded in
interface files. These are used by the :doc command in GHCi, as well as IDE
tools like ghcide and hls to display docs on hover.

The `-haddock` flag has been around since at least 8.2, even though it does not
get a mention in the GHC Users guide.

There are two downsides to turning on this flag:

1. Increased compile times, since Haddocks must be parsed and then encoded
2. Haddock parse errors now become compile errors for GHC < 9.0.1
   (https://gitlab.haskell.org/ghc/ghc/-/issues/8944)

Thus we only enable the feature if we have GHC 9.0.1 and haddock is
enabled; when 9.0.1 becomes the default GHC, we may need to reevaluate
the performance concern.

Co-authored-by: sternenseemann <sternenseemann@systemli.org>
2021-11-10 21:10:35 +01:00

704 lines
29 KiB
Nix

{ lib, stdenv, buildPackages, buildHaskellPackages, ghc
, jailbreak-cabal, hscolour, cpphs, nodejs
, ghcWithHoogle, ghcWithPackages
}:
let
isCross = stdenv.buildPlatform != stdenv.hostPlatform;
inherit (buildPackages)
fetchurl removeReferencesTo
pkg-config coreutils gnugrep gnused glibcLocales;
in
{ pname
, dontStrip ? (ghc.isGhcjs or false)
, version, revision ? null
, sha256 ? null
, src ? fetchurl { url = "mirror://hackage/${pname}-${version}.tar.gz"; inherit sha256; }
, buildDepends ? [], setupHaskellDepends ? [], libraryHaskellDepends ? [], executableHaskellDepends ? []
, buildTarget ? ""
, buildTools ? [], libraryToolDepends ? [], executableToolDepends ? [], testToolDepends ? [], benchmarkToolDepends ? []
, configureFlags ? []
, buildFlags ? []
, haddockFlags ? []
, description ? null
, doCheck ? !isCross && lib.versionOlder "7.4" ghc.version
, doBenchmark ? false
, doHoogle ? true
, doHaddockQuickjump ? doHoogle && lib.versionAtLeast ghc.version "8.6"
, editedCabalFile ? null
# aarch64 outputs otherwise exceed 2GB limit
, enableLibraryProfiling ? !(ghc.isGhcjs or stdenv.targetPlatform.isAarch64 or false)
, enableExecutableProfiling ? false
, profilingDetail ? "exported-functions"
# TODO enable shared libs for cross-compiling
, enableSharedExecutables ? false
, enableSharedLibraries ? !stdenv.hostPlatform.isStatic && (ghc.enableShared or false)
, enableDeadCodeElimination ? (!stdenv.isDarwin) # TODO: use -dead_strip for darwin
, enableStaticLibraries ? !(stdenv.hostPlatform.isWindows or stdenv.hostPlatform.isWasm)
, enableHsc2hsViaAsm ? stdenv.hostPlatform.isWindows && lib.versionAtLeast ghc.version "8.4"
, extraLibraries ? [], librarySystemDepends ? [], executableSystemDepends ? []
# On macOS, statically linking against system frameworks is not supported;
# see https://developer.apple.com/library/content/qa/qa1118/_index.html
# They must be propagated to the environment of any executable linking with the library
, libraryFrameworkDepends ? [], executableFrameworkDepends ? []
, homepage ? "https://hackage.haskell.org/package/${pname}"
, platforms ? with lib.platforms; all # GHC can cross-compile
, badPlatforms ? lib.platforms.none
, hydraPlatforms ? null
, hyperlinkSource ? true
, isExecutable ? false, isLibrary ? !isExecutable
, jailbreak ? false
, license
, enableParallelBuilding ? true
, maintainers ? null
, changelog ? null
, mainProgram ? null
, doCoverage ? false
, doHaddock ? !(ghc.isHaLVM or false)
, doHaddockInterfaces ? doHaddock && lib.versionAtLeast ghc.version "9.0.1"
, passthru ? {}
, pkg-configDepends ? [], libraryPkgconfigDepends ? [], executablePkgconfigDepends ? [], testPkgconfigDepends ? [], benchmarkPkgconfigDepends ? []
, testDepends ? [], testHaskellDepends ? [], testSystemDepends ? [], testFrameworkDepends ? []
, benchmarkDepends ? [], benchmarkHaskellDepends ? [], benchmarkSystemDepends ? [], benchmarkFrameworkDepends ? []
, testTarget ? "", testFlags ? []
, broken ? false
, preCompileBuildDriver ? null, postCompileBuildDriver ? null
, preUnpack ? null, postUnpack ? null
, patches ? null, patchPhase ? null, prePatch ? "", postPatch ? ""
, preConfigure ? null, postConfigure ? null
, preBuild ? null, postBuild ? null
, preHaddock ? null, postHaddock ? null
, installPhase ? null, preInstall ? null, postInstall ? null
, checkPhase ? null, preCheck ? null, postCheck ? null
, preFixup ? null, postFixup ? null
, shellHook ? ""
, coreSetup ? false # Use only core packages to build Setup.hs.
, useCpphs ? false
, hardeningDisable ? null
, enableSeparateBinOutput ? false
, enableSeparateDataOutput ? false
, enableSeparateDocOutput ? doHaddock
, # Don't fail at configure time if there are multiple versions of the
# same package in the (recursive) dependencies of the package being
# built. Will delay failures, if any, to compile time.
allowInconsistentDependencies ? false
, maxBuildCores ? 16 # more cores usually don't improve performance: https://ghc.haskell.org/trac/ghc/ticket/9221
, # If set to true, this builds a pre-linked .o file for this Haskell library.
# This can make it slightly faster to load this library into GHCi, but takes
# extra disk space and compile time.
enableLibraryForGhci ? false
} @ args:
assert editedCabalFile != null -> revision != null;
# --enable-static does not work on windows. This is a bug in GHC.
# --enable-static will pass -staticlib to ghc, which only works for mach-o and elf.
assert stdenv.hostPlatform.isWindows -> enableStaticLibraries == false;
assert stdenv.hostPlatform.isWasm -> enableStaticLibraries == false;
let
inherit (lib) optional optionals optionalString versionOlder versionAtLeast
concatStringsSep enableFeature optionalAttrs;
isGhcjs = ghc.isGhcjs or false;
isHaLVM = ghc.isHaLVM or false;
packageDbFlag = if isGhcjs || isHaLVM || versionOlder "7.6" ghc.version
then "package-db"
else "package-conf";
# GHC used for building Setup.hs
#
# Same as our GHC, unless we're cross, in which case it is native GHC with the
# same version, or ghcjs, in which case its the ghc used to build ghcjs.
nativeGhc = buildHaskellPackages.ghc;
nativePackageDbFlag = if versionOlder "7.6" nativeGhc.version
then "package-db"
else "package-conf";
# the target dir for haddock documentation
docdir = docoutput: docoutput + "/share/doc/" + pname + "-" + version;
binDir = if enableSeparateBinOutput then "$bin/bin" else "$out/bin";
newCabalFileUrl = "mirror://hackage/${pname}-${version}/revision/${revision}.cabal";
newCabalFile = fetchurl {
url = newCabalFileUrl;
sha256 = editedCabalFile;
name = "${pname}-${version}-r${revision}.cabal";
};
defaultSetupHs = builtins.toFile "Setup.hs" ''
import Distribution.Simple
main = defaultMain
'';
# This awk expression transforms a package conf file like
#
# author: John Doe <john-doe@example.com>
# description:
# The purpose of this library is to do
# foo and bar among other things
#
# into a more easily processeable form:
#
# author: John Doe <john-doe@example.com>
# description: The purpose of this library is to do foo and bar among other things
unprettyConf = builtins.toFile "unpretty-cabal-conf.awk" ''
/^[^ ]+:/ {
# When the line starts with a new field, terminate the previous one with a newline
if (started == 1) print ""
# to strip leading spaces
$1=$1
printf "%s", $0
started=1
}
/^ +/ {
# to strip leading spaces
$1=$1
printf " %s", $0
}
# Terminate the final field with a newline
END { print "" }
'';
crossCabalFlags = [
"--with-ghc=${ghcCommand}"
"--with-ghc-pkg=${ghc.targetPrefix}ghc-pkg"
# Pass the "wrong" C compiler rather than none at all so packages that just
# use the C preproccessor still work, see
# https://github.com/haskell/cabal/issues/6466 for details.
"--with-gcc=${(if stdenv.hasCC then stdenv else buildPackages.stdenv).cc.targetPrefix}cc"
] ++ optionals stdenv.hasCC [
"--with-ld=${stdenv.cc.bintools.targetPrefix}ld"
"--with-ar=${stdenv.cc.bintools.targetPrefix}ar"
# use the one that comes with the cross compiler.
"--with-hsc2hs=${ghc.targetPrefix}hsc2hs"
"--with-strip=${stdenv.cc.bintools.targetPrefix}strip"
] ++ optionals (!isHaLVM) [
"--hsc2hs-option=--cross-compile"
(optionalString enableHsc2hsViaAsm "--hsc2hs-option=--via-asm")
];
parallelBuildingFlags = "-j$NIX_BUILD_CORES" + optionalString stdenv.isLinux " +RTS -A64M -RTS";
crossCabalFlagsString =
lib.optionalString isCross (" " + lib.concatStringsSep " " crossCabalFlags);
buildFlagsString = optionalString (buildFlags != []) (" " + concatStringsSep " " buildFlags);
defaultConfigureFlags = [
"--verbose"
"--prefix=$out"
"--libdir=\\$prefix/lib/\\$compiler"
"--libsubdir=\\$abi/\\$libname"
(optionalString enableSeparateDataOutput "--datadir=$data/share/${ghc.name}")
(optionalString enableSeparateDocOutput "--docdir=${docdir "$doc"}")
] ++ optionals stdenv.hasCC [
"--with-gcc=$CC" # Clang won't work without that extra information.
] ++ [
"--package-db=$packageConfDir"
(optionalString (enableSharedExecutables && stdenv.isLinux) "--ghc-option=-optl=-Wl,-rpath=$out/lib/${ghc.name}/${pname}-${version}")
(optionalString (enableSharedExecutables && stdenv.isDarwin) "--ghc-option=-optl=-Wl,-headerpad_max_install_names")
(optionalString enableParallelBuilding "--ghc-options=${parallelBuildingFlags}")
(optionalString useCpphs "--with-cpphs=${cpphs}/bin/cpphs --ghc-options=-cpp --ghc-options=-pgmP${cpphs}/bin/cpphs --ghc-options=-optP--cpp")
(enableFeature (enableDeadCodeElimination && !stdenv.hostPlatform.isAarch32 && !stdenv.hostPlatform.isAarch64 && (versionAtLeast "8.0.1" ghc.version)) "split-objs")
(enableFeature enableLibraryProfiling "library-profiling")
(optionalString ((enableExecutableProfiling || enableLibraryProfiling) && versionOlder "8" ghc.version) "--profiling-detail=${profilingDetail}")
(enableFeature enableExecutableProfiling (if versionOlder ghc.version "8" then "executable-profiling" else "profiling"))
(enableFeature enableSharedLibraries "shared")
(optionalString (versionAtLeast ghc.version "7.10") (enableFeature doCoverage "coverage"))
(optionalString (versionOlder "8.4" ghc.version) (enableFeature enableStaticLibraries "static"))
(optionalString (isGhcjs || versionOlder "7.4" ghc.version) (enableFeature enableSharedExecutables "executable-dynamic"))
(optionalString (isGhcjs || versionOlder "7" ghc.version) (enableFeature doCheck "tests"))
(enableFeature doBenchmark "benchmarks")
"--enable-library-vanilla" # TODO: Should this be configurable?
(enableFeature enableLibraryForGhci "library-for-ghci")
] ++ optionals (enableDeadCodeElimination && (lib.versionOlder "8.0.1" ghc.version)) [
"--ghc-option=-split-sections"
] ++ optionals dontStrip [
"--disable-library-stripping"
"--disable-executable-stripping"
] ++ optionals isGhcjs [
"--ghcjs"
] ++ optionals isCross ([
"--configure-option=--host=${stdenv.hostPlatform.config}"
] ++ crossCabalFlags
) ++ optionals enableSeparateBinOutput [
"--bindir=${binDir}"
] ++ optionals (doHaddockInterfaces && isLibrary) [
"--ghc-options=-haddock"
];
setupCompileFlags = [
(optionalString (!coreSetup) "-${nativePackageDbFlag}=$setupPackageConfDir")
(optionalString enableParallelBuilding (parallelBuildingFlags))
"-threaded" # https://github.com/haskell/cabal/issues/2398
"-rtsopts" # allow us to pass RTS flags to the generated Setup executable
];
isHaskellPkg = x: x ? isHaskellLibrary;
allPkgconfigDepends = pkg-configDepends ++ libraryPkgconfigDepends ++ executablePkgconfigDepends ++
optionals doCheck testPkgconfigDepends ++ optionals doBenchmark benchmarkPkgconfigDepends;
depsBuildBuild = [ nativeGhc ];
collectedToolDepends =
buildTools ++ libraryToolDepends ++ executableToolDepends ++
optionals doCheck testToolDepends ++
optionals doBenchmark benchmarkToolDepends;
nativeBuildInputs =
[ ghc removeReferencesTo ] ++ optional (allPkgconfigDepends != []) pkg-config ++
setupHaskellDepends ++ collectedToolDepends;
propagatedBuildInputs = buildDepends ++ libraryHaskellDepends ++ executableHaskellDepends ++ libraryFrameworkDepends;
otherBuildInputsHaskell =
optionals doCheck (testDepends ++ testHaskellDepends) ++
optionals doBenchmark (benchmarkDepends ++ benchmarkHaskellDepends);
otherBuildInputsSystem =
extraLibraries ++ librarySystemDepends ++ executableSystemDepends ++ executableFrameworkDepends ++
allPkgconfigDepends ++
optionals doCheck (testSystemDepends ++ testFrameworkDepends) ++
optionals doBenchmark (benchmarkSystemDepends ++ benchmarkFrameworkDepends);
# TODO next rebuild just define as `otherBuildInputsHaskell ++ otherBuildInputsSystem`
otherBuildInputs =
extraLibraries ++ librarySystemDepends ++ executableSystemDepends ++ executableFrameworkDepends ++
allPkgconfigDepends ++
optionals doCheck (testDepends ++ testHaskellDepends ++ testSystemDepends ++ testFrameworkDepends) ++
optionals doBenchmark (benchmarkDepends ++ benchmarkHaskellDepends ++ benchmarkSystemDepends ++ benchmarkFrameworkDepends);
setupCommand = "./Setup";
ghcCommand' = if isGhcjs then "ghcjs" else "ghc";
ghcCommand = "${ghc.targetPrefix}${ghcCommand'}";
nativeGhcCommand = "${nativeGhc.targetPrefix}ghc";
buildPkgDb = ghcName: packageConfDir: ''
# If this dependency has a package database, then copy the contents of it,
# unless it is one of our GHCs. These can appear in our dependencies when
# we are doing native builds, and they have package databases in them, but
# we do not want to copy them over.
#
# We don't need to, since those packages will be provided by the GHC when
# we compile with it, and doing so can result in having multiple copies of
# e.g. Cabal in the database with the same name and version, which is
# ambiguous.
if [ -d "$p/lib/${ghcName}/package.conf.d" ] && [ "$p" != "${ghc}" ] && [ "$p" != "${nativeGhc}" ]; then
cp -f "$p/lib/${ghcName}/package.conf.d/"*.conf ${packageConfDir}/
continue
fi
'';
in lib.fix (drv:
assert allPkgconfigDepends != [] -> pkg-config != null;
stdenv.mkDerivation ({
inherit pname version;
outputs = [ "out" ]
++ (optional enableSeparateDataOutput "data")
++ (optional enableSeparateDocOutput "doc")
++ (optional enableSeparateBinOutput "bin");
setOutputFlags = false;
pos = builtins.unsafeGetAttrPos "pname" args;
prePhases = ["setupCompilerEnvironmentPhase"];
preConfigurePhases = ["compileBuildDriverPhase"];
preInstallPhases = ["haddockPhase"];
inherit src;
inherit depsBuildBuild nativeBuildInputs;
buildInputs = otherBuildInputs ++ optionals (!isLibrary) propagatedBuildInputs;
propagatedBuildInputs = optionals isLibrary propagatedBuildInputs;
LANG = "en_US.UTF-8"; # GHC needs the locale configured during the Haddock phase.
prePatch = optionalString (editedCabalFile != null) ''
echo "Replace Cabal file with edited version from ${newCabalFileUrl}."
cp ${newCabalFile} ${pname}.cabal
'' + prePatch;
postPatch = optionalString jailbreak ''
echo "Run jailbreak-cabal to lift version restrictions on build inputs."
${jailbreak-cabal}/bin/jailbreak-cabal ${pname}.cabal
'' + postPatch;
setupCompilerEnvironmentPhase = ''
NIX_BUILD_CORES=$(( NIX_BUILD_CORES < ${toString maxBuildCores} ? NIX_BUILD_CORES : ${toString maxBuildCores} ))
runHook preSetupCompilerEnvironment
echo "Build with ${ghc}."
${optionalString (isLibrary && hyperlinkSource) "export PATH=${hscolour}/bin:$PATH"}
setupPackageConfDir="$TMPDIR/setup-package.conf.d"
mkdir -p $setupPackageConfDir
packageConfDir="$TMPDIR/package.conf.d"
mkdir -p $packageConfDir
setupCompileFlags="${concatStringsSep " " setupCompileFlags}"
configureFlags="${concatStringsSep " " defaultConfigureFlags} $configureFlags"
''
# We build the Setup.hs on the *build* machine, and as such should only add
# dependencies for the build machine.
#
# pkgs* arrays defined in stdenv/setup.hs
+ ''
for p in "''${pkgsBuildBuild[@]}" "''${pkgsBuildHost[@]}" "''${pkgsBuildTarget[@]}"; do
${buildPkgDb nativeGhc.name "$setupPackageConfDir"}
done
${nativeGhcCommand}-pkg --${nativePackageDbFlag}="$setupPackageConfDir" recache
''
# For normal components
+ ''
for p in "''${pkgsHostHost[@]}" "''${pkgsHostTarget[@]}"; do
${buildPkgDb ghc.name "$packageConfDir"}
if [ -d "$p/include" ]; then
configureFlags+=" --extra-include-dirs=$p/include"
fi
if [ -d "$p/lib" ]; then
configureFlags+=" --extra-lib-dirs=$p/lib"
fi
''
# It is not clear why --extra-framework-dirs does work fine on Linux
+ optionalString (!stdenv.buildPlatform.isDarwin || versionAtLeast nativeGhc.version "8.0") ''
if [[ -d "$p/Library/Frameworks" ]]; then
configureFlags+=" --extra-framework-dirs=$p/Library/Frameworks"
fi
'' + ''
done
''
# only use the links hack if we're actually building dylibs. otherwise, the
# "dynamic-library-dirs" point to nonexistent paths, and the ln command becomes
# "ln -s $out/lib/links", which tries to recreate the links dir and fails
+ (optionalString (stdenv.isDarwin && (enableSharedLibraries || enableSharedExecutables)) ''
# Work around a limit in the macOS Sierra linker on the number of paths
# referenced by any one dynamic library:
#
# Create a local directory with symlinks of the *.dylib (macOS shared
# libraries) from all the dependencies.
local dynamicLinksDir="$out/lib/links"
mkdir -p $dynamicLinksDir
# Unprettify all package conf files before reading/writing them
for d in "$packageConfDir/"*; do
# gawk -i inplace seems to strip the last newline
gawk -f ${unprettyConf} "$d" > tmp
mv tmp "$d"
done
for d in $(grep '^dynamic-library-dirs:' "$packageConfDir"/* | cut -d' ' -f2- | tr ' ' '\n' | sort -u); do
for lib in "$d/"*.{dylib,so}; do
# Allow overwriting because C libs can be pulled in multiple times.
ln -sf "$lib" "$dynamicLinksDir"
done
done
# Edit the local package DB to reference the links directory.
for f in "$packageConfDir/"*.conf; do
sed -i "s,dynamic-library-dirs: .*,dynamic-library-dirs: $dynamicLinksDir," "$f"
done
'') + ''
${ghcCommand}-pkg --${packageDbFlag}="$packageConfDir" recache
runHook postSetupCompilerEnvironment
'';
compileBuildDriverPhase = ''
runHook preCompileBuildDriver
for i in Setup.hs Setup.lhs ${defaultSetupHs}; do
test -f $i && break
done
echo setupCompileFlags: $setupCompileFlags
${nativeGhcCommand} $setupCompileFlags --make -o Setup -odir $TMPDIR -hidir $TMPDIR $i
runHook postCompileBuildDriver
'';
# Cabal takes flags like `--configure-option=--host=...` instead
configurePlatforms = [];
inherit configureFlags;
# Note: the options here must be always added, regardless of whether the
# package specifies `hardeningDisable`.
hardeningDisable = lib.optionals (args ? hardeningDisable) hardeningDisable
++ lib.optional (ghc.isHaLVM or false) "all"
# Static libraries (ie. all of pkgsStatic.haskellPackages) fail to build
# because by default Nix adds `-pie` to the linker flags: this
# conflicts with the `-r` and `-no-pie` flags added by GHC (see
# https://gitlab.haskell.org/ghc/ghc/-/issues/19580). hardeningDisable
# changes the default Nix behavior regarding adding "hardening" flags.
++ lib.optional enableStaticLibraries "pie";
configurePhase = ''
runHook preConfigure
unset GHC_PACKAGE_PATH # Cabal complains if this variable is set during configure.
echo configureFlags: $configureFlags
${setupCommand} configure $configureFlags 2>&1 | ${coreutils}/bin/tee "$NIX_BUILD_TOP/cabal-configure.log"
${lib.optionalString (!allowInconsistentDependencies) ''
if ${gnugrep}/bin/egrep -q -z 'Warning:.*depends on multiple versions' "$NIX_BUILD_TOP/cabal-configure.log"; then
echo >&2 "*** abort because of serious configure-time warning from Cabal"
exit 1
fi
''}
export GHC_PACKAGE_PATH="$packageConfDir:"
runHook postConfigure
'';
buildPhase = ''
runHook preBuild
${setupCommand} build ${buildTarget}${crossCabalFlagsString}${buildFlagsString}
runHook postBuild
'';
inherit doCheck;
# Run test suite(s) and pass `checkFlags` as well as `checkFlagsArray`.
# `testFlags` are added to `checkFlagsArray` each prefixed with
# `--test-option`, so Cabal passes it to the underlying test suite binary.
checkPhase = ''
runHook preCheck
checkFlagsArray+=(${lib.escapeShellArgs (builtins.map (opt: "--test-option=${opt}") testFlags)})
${setupCommand} test ${testTarget} $checkFlags ''${checkFlagsArray:+"''${checkFlagsArray[@]}"}
runHook postCheck
'';
haddockPhase = ''
runHook preHaddock
${optionalString (doHaddock && isLibrary) ''
${setupCommand} haddock --html \
${optionalString doHoogle "--hoogle"} \
${optionalString doHaddockQuickjump "--quickjump"} \
${optionalString (isLibrary && hyperlinkSource) "--hyperlink-source"} \
${lib.concatStringsSep " " haddockFlags}
''}
runHook postHaddock
'';
installPhase = ''
runHook preInstall
${if !isLibrary && buildTarget == "" then "${setupCommand} install"
# ^^ if the project is not a library, and no build target is specified, we can just use "install".
else if !isLibrary then "${setupCommand} copy ${buildTarget}"
# ^^ if the project is not a library, and we have a build target, then use "copy" to install
# just the target specified; "install" will error here, since not all targets have been built.
else ''
${setupCommand} copy ${buildTarget}
local packageConfDir="$out/lib/${ghc.name}/package.conf.d"
local packageConfFile="$packageConfDir/${pname}-${version}.conf"
mkdir -p "$packageConfDir"
${setupCommand} register --gen-pkg-config=$packageConfFile
if [ -d "$packageConfFile" ]; then
mv "$packageConfFile/"* "$packageConfDir"
rmdir "$packageConfFile"
fi
for packageConfFile in "$packageConfDir/"*; do
local pkgId=$(gawk -f ${unprettyConf} "$packageConfFile" \
| grep '^id:' | cut -d' ' -f2)
mv "$packageConfFile" "$packageConfDir/$pkgId.conf"
done
# delete confdir if there are no libraries
find $packageConfDir -maxdepth 0 -empty -delete;
''}
${optionalString isGhcjs ''
for exeDir in "${binDir}/"*.jsexe; do
exe="''${exeDir%.jsexe}"
printWords '#!${nodejs}/bin/node' > "$exe"
echo >> "$exe"
cat "$exeDir/all.js" >> "$exe"
chmod +x "$exe"
done
''}
${optionalString doCoverage "mkdir -p $out/share && cp -r dist/hpc $out/share"}
${optionalString (enableSharedExecutables && isExecutable && !isGhcjs && stdenv.isDarwin && lib.versionOlder ghc.version "7.10") ''
for exe in "${binDir}/"* ; do
install_name_tool -add_rpath "$out/lib/ghc-${ghc.version}/${pname}-${version}" "$exe"
done
''}
${optionalString enableSeparateDocOutput ''
for x in ${docdir "$doc"}"/html/src/"*.html; do
remove-references-to -t $out $x
done
mkdir -p $doc
''}
${optionalString enableSeparateDataOutput "mkdir -p $data"}
runHook postInstall
'';
passthru = passthru // rec {
inherit pname version;
compiler = ghc;
# All this information is intended just for `shellFor`. It should be
# considered unstable and indeed we knew how to keep it private we would.
getCabalDeps = {
inherit
buildDepends
buildTools
executableFrameworkDepends
executableHaskellDepends
executablePkgconfigDepends
executableSystemDepends
executableToolDepends
extraLibraries
libraryFrameworkDepends
libraryHaskellDepends
libraryPkgconfigDepends
librarySystemDepends
libraryToolDepends
pkg-configDepends
setupHaskellDepends
;
} // lib.optionalAttrs doCheck {
inherit
testDepends
testFrameworkDepends
testHaskellDepends
testPkgconfigDepends
testSystemDepends
testToolDepends
;
} // lib.optionalAttrs doBenchmark {
inherit
benchmarkDepends
benchmarkFrameworkDepends
benchmarkHaskellDepends
benchmarkPkgconfigDepends
benchmarkSystemDepends
benchmarkToolDepends
;
};
# Attributes for the old definition of `shellFor`. Should be removed but
# this predates the warning at the top of `getCabalDeps`.
getBuildInputs = rec {
inherit propagatedBuildInputs otherBuildInputs allPkgconfigDepends;
haskellBuildInputs = isHaskellPartition.right;
systemBuildInputs = isHaskellPartition.wrong;
isHaskellPartition = lib.partition
isHaskellPkg
(propagatedBuildInputs ++ otherBuildInputs ++ depsBuildBuild ++ nativeBuildInputs);
};
isHaskellLibrary = isLibrary;
# TODO: ask why the split outputs are configurable at all?
# TODO: include tests for split if possible
# Given the haskell package, returns
# the directory containing the haddock documentation.
# `null' if no haddock documentation was built.
# TODO: fetch the self from the fixpoint instead
haddockDir = self: if doHaddock then "${docdir self.doc}/html" else null;
# Creates a derivation containing all of the necessary dependencies for building the
# parent derivation. The attribute set that it takes as input can be viewed as:
#
# { withHoogle }
#
# The derivation that it builds contains no outpaths because it is meant for use
# as an environment
#
# # Example use
# # Creates a shell with all of the dependencies required to build the "hello" package,
# # and with python:
#
# > nix-shell -E 'with (import <nixpkgs> {}); \
# > haskell.packages.ghc865.hello.envFunc { buildInputs = [ python ]; }'
envFunc = { withHoogle ? false }:
let
name = "ghc-shell-for-${drv.name}";
withPackages = if withHoogle then ghcWithHoogle else ghcWithPackages;
# We use the `ghcWithPackages` function from `buildHaskellPackages` if we
# want a shell for the sake of cross compiling a package. In the native case
# we don't use this at all, and instead put the setupDepends in the main
# `ghcWithPackages`. This way we don't have two wrapper scripts called `ghc`
# shadowing each other on the PATH.
ghcEnvForBuild =
assert isCross;
buildHaskellPackages.ghcWithPackages (_: setupHaskellDepends);
ghcEnv = withPackages (_:
otherBuildInputsHaskell ++
propagatedBuildInputs ++
lib.optionals (!isCross) setupHaskellDepends);
ghcCommandCaps = lib.toUpper ghcCommand';
in stdenv.mkDerivation ({
inherit name shellHook;
depsBuildBuild = lib.optional isCross ghcEnvForBuild;
nativeBuildInputs =
[ ghcEnv ] ++ optional (allPkgconfigDepends != []) pkg-config ++
collectedToolDepends;
buildInputs =
otherBuildInputsSystem;
phases = ["installPhase"];
installPhase = "echo $nativeBuildInputs $buildInputs > $out";
LANG = "en_US.UTF-8";
LOCALE_ARCHIVE = lib.optionalString (stdenv.hostPlatform.libc == "glibc") "${buildPackages.glibcLocales}/lib/locale/locale-archive";
"NIX_${ghcCommandCaps}" = "${ghcEnv}/bin/${ghcCommand}";
"NIX_${ghcCommandCaps}PKG" = "${ghcEnv}/bin/${ghcCommand}-pkg";
# TODO: is this still valid?
"NIX_${ghcCommandCaps}_DOCDIR" = "${ghcEnv}/share/doc/ghc/html";
"NIX_${ghcCommandCaps}_LIBDIR" = if ghc.isHaLVM or false
then "${ghcEnv}/lib/HaLVM-${ghc.version}"
else "${ghcEnv}/lib/${ghcCommand}-${ghc.version}";
});
env = envFunc { };
};
meta = { inherit homepage license platforms; }
// optionalAttrs (args ? broken) { inherit broken; }
// optionalAttrs (args ? description) { inherit description; }
// optionalAttrs (args ? maintainers) { inherit maintainers; }
// optionalAttrs (args ? hydraPlatforms) { inherit hydraPlatforms; }
// optionalAttrs (args ? badPlatforms) { inherit badPlatforms; }
// optionalAttrs (args ? changelog) { inherit changelog; }
// optionalAttrs (args ? mainProgram) { inherit mainProgram; }
;
}
// optionalAttrs (args ? preCompileBuildDriver) { inherit preCompileBuildDriver; }
// optionalAttrs (args ? postCompileBuildDriver) { inherit postCompileBuildDriver; }
// optionalAttrs (args ? preUnpack) { inherit preUnpack; }
// optionalAttrs (args ? postUnpack) { inherit postUnpack; }
// optionalAttrs (args ? patches) { inherit patches; }
// optionalAttrs (args ? patchPhase) { inherit patchPhase; }
// optionalAttrs (args ? preConfigure) { inherit preConfigure; }
// optionalAttrs (args ? postConfigure) { inherit postConfigure; }
// optionalAttrs (args ? preBuild) { inherit preBuild; }
// optionalAttrs (args ? postBuild) { inherit postBuild; }
// optionalAttrs (args ? doBenchmark) { inherit doBenchmark; }
// optionalAttrs (args ? checkPhase) { inherit checkPhase; }
// optionalAttrs (args ? preCheck) { inherit preCheck; }
// optionalAttrs (args ? postCheck) { inherit postCheck; }
// optionalAttrs (args ? preHaddock) { inherit preHaddock; }
// optionalAttrs (args ? postHaddock) { inherit postHaddock; }
// optionalAttrs (args ? preInstall) { inherit preInstall; }
// optionalAttrs (args ? installPhase) { inherit installPhase; }
// optionalAttrs (args ? postInstall) { inherit postInstall; }
// optionalAttrs (args ? preFixup) { inherit preFixup; }
// optionalAttrs (args ? postFixup) { inherit postFixup; }
// optionalAttrs (args ? dontStrip) { inherit dontStrip; }
// optionalAttrs (stdenv.buildPlatform.libc == "glibc"){ LOCALE_ARCHIVE = "${glibcLocales}/lib/locale/locale-archive"; }
)
)