nixpkgs/pkgs/development/haskell-modules/lib.nix
Ellie Hermaszewska 518f09f2d0
haskell.lib.compose: init
No changes in derivations for pkgs.haskellPackages
2021-11-07 19:40:00 +08:00

356 lines
13 KiB
Nix

# TODO(@Ericson2314): Remove `pkgs` param, which is only used for
# `buildStackProject`, `justStaticExecutables` and `checkUnusedPackages`
{ pkgs, lib }:
rec {
/* The same functionality as this haskell.lib, except that the derivation
being overridden is always the last parameter. This permits more natural
composition of several overrides, i.e. without having to nestle one call
between the function name and argument of another. haskell.lib.compose is
preferred for any new code.
*/
compose = import ./lib/compose.nix { inherit pkgs lib; };
/* This function takes a file like `hackage-packages.nix` and constructs
a full package set out of that.
*/
makePackageSet = compose.makePackageSet;
/* The function overrideCabal lets you alter the arguments to the
mkDerivation function.
Example:
First, note how the aeson package is constructed in hackage-packages.nix:
"aeson" = callPackage ({ mkDerivation, attoparsec, <snip>
}:
mkDerivation {
pname = "aeson";
<snip>
homepage = "https://github.com/bos/aeson";
})
The mkDerivation function of haskellPackages will take care of putting
the homepage in the right place, in meta.
> haskellPackages.aeson.meta.homepage
"https://github.com/bos/aeson"
> x = haskell.lib.overrideCabal haskellPackages.aeson (old: { homepage = old.homepage + "#readme"; })
> x.meta.homepage
"https://github.com/bos/aeson#readme"
*/
overrideCabal = drv: f: compose.overrideCabal f drv;
# : Map Name (Either Path VersionNumber) -> HaskellPackageOverrideSet
# Given a set whose values are either paths or version strings, produces
# a package override set (i.e. (self: super: { etc. })) that sets
# the packages named in the input set to the corresponding versions
packageSourceOverrides = compose.packageSourceOverrides;
/* doCoverage modifies a haskell package to enable the generation
and installation of a coverage report.
See https://wiki.haskell.org/Haskell_program_coverage
*/
doCoverage = compose.doCoverage;
/* dontCoverage modifies a haskell package to disable the generation
and installation of a coverage report.
*/
dontCoverage = compose.dontCoverage;
/* doHaddock modifies a haskell package to enable the generation and
installation of API documentation from code comments using the
haddock tool.
*/
doHaddock = compose.doHaddock;
/* dontHaddock modifies a haskell package to disable the generation and
installation of API documentation from code comments using the
haddock tool.
*/
dontHaddock = compose.dontHaddock;
/* doJailbreak enables the removal of version bounds from the cabal
file. You may want to avoid this function.
This is useful when a package reports that it can not be built
due to version mismatches. In some cases, removing the version
bounds entirely is an easy way to make a package build, but at
the risk of breaking software in non-obvious ways now or in the
future.
Instead of jailbreaking, you can patch the cabal file.
Note that jailbreaking at this time, doesn't lift bounds on
conditional branches.
https://github.com/peti/jailbreak-cabal/issues/7 has further details.
*/
doJailbreak = compose.doJailbreak;
/* dontJailbreak restores the use of the version bounds the check
the use of dependencies in the package description.
*/
dontJailbreak = compose.dontJailbreak;
/* doCheck enables dependency checking, compilation and execution
of test suites listed in the package description file.
*/
doCheck = compose.doCheck;
/* dontCheck disables dependency checking, compilation and execution
of test suites listed in the package description file.
*/
dontCheck = compose.dontCheck;
/* doBenchmark enables dependency checking, compilation and execution
for benchmarks listed in the package description file.
*/
doBenchmark = compose.doBenchmark;
/* dontBenchmark disables dependency checking, compilation and execution
for benchmarks listed in the package description file.
*/
dontBenchmark = compose.dontBenchmark;
/* doDistribute enables the distribution of binaries for the package
via hydra.
*/
doDistribute = compose.doDistribute;
/* dontDistribute disables the distribution of binaries for the package
via hydra.
*/
dontDistribute = compose.dontDistribute;
/* appendConfigureFlag adds a single argument that will be passed to the
cabal configure command, after the arguments that have been defined
in the initial declaration or previous overrides.
Example:
> haskell.lib.appendConfigureFlag haskellPackages.servant "--profiling-detail=all-functions"
*/
appendConfigureFlag = drv: x: compose.appendConfigureFlag x drv;
appendConfigureFlags = drv: xs: compose.appendConfigureFlags xs drv;
appendBuildFlag = drv: x: compose.appendBuildFlag x drv;
appendBuildFlags = drv: xs: compose.appendBuildFlags xs drv;
/* removeConfigureFlag drv x is a Haskell package like drv, but with
all cabal configure arguments that are equal to x removed.
> haskell.lib.removeConfigureFlag haskellPackages.servant "--verbose"
*/
removeConfigureFlag = drv: x: compose.removeConfigureFlag x drv;
addBuildTool = drv: x: compose.addBuildTool x drv;
addBuildTools = drv: xs: compose.addBuildTools xs drv;
addExtraLibrary = drv: x: compose.addExtraLibrary x drv;
addExtraLibraries = drv: xs: compose.addExtraLibraries xs drv;
addBuildDepend = drv: x: compose.addBuildDepend x drv;
addBuildDepends = drv: xs: compose.addBuildDepends xs drv;
addTestToolDepend = drv: x: compose.addTestToolDepend x drv;
addTestToolDepends = drv: xs: compose.addTestToolDepends xs drv;
addPkgconfigDepend = drv: x: compose.addPkgconfigDepend x drv;
addPkgconfigDepends = drv: xs: compose.addPkgconfigDepends xs drv;
addSetupDepend = drv: x: compose.addSetupDepend x drv;
addSetupDepends = drv: xs: compose.addSetupDepends xs drv;
enableCabalFlag = drv: x: compose.enableCabalFlag x drv;
disableCabalFlag = drv: x: compose.disableCabalFlag x drv;
markBroken = compose.markBroken;
unmarkBroken = compose.unmarkBroken;
markBrokenVersion = compose.markBrokenVersion;
markUnbroken = compose.markUnbroken;
enableLibraryProfiling = compose.enableLibraryProfiling;
disableLibraryProfiling = compose.disableLibraryProfiling;
enableExecutableProfiling = compose.enableExecutableProfiling;
disableExecutableProfiling = compose.disableExecutableProfiling;
enableSharedExecutables = compose.enableSharedExecutables;
disableSharedExecutables = compose.disableSharedExecutables;
enableSharedLibraries = compose.enableSharedLibraries;
disableSharedLibraries = compose.disableSharedLibraries;
enableDeadCodeElimination = compose.enableDeadCodeElimination;
disableDeadCodeElimination = compose.disableDeadCodeElimination;
enableStaticLibraries = compose.enableStaticLibraries;
disableStaticLibraries = compose.disableStaticLibraries;
enableSeparateBinOutput = compose.enableSeparateBinOutput;
appendPatch = drv: x: compose.appendPatch x drv;
appendPatches = drv: xs: compose.appendPatches xs drv;
/* Set a specific build target instead of compiling all targets in the package.
* For example, imagine we have a .cabal file with a library, and 2 executables "dev" and "server".
* We can build only "server" and not wait on the compilation of "dev" by using setBuildTarget as follows:
*
* setBuildTarget (callCabal2nix "thePackageName" thePackageSrc {}) "server"
*
*/
setBuildTargets = drv: xs: compose.setBuildTargets xs drv;
setBuildTarget = drv: x: compose.setBuildTarget x drv;
doHyperlinkSource = compose.doHyperlinkSource;
dontHyperlinkSource = compose.dontHyperlinkSource;
disableHardening = drv: flags: compose.disableHardening flags drv;
/* Let Nix strip the binary files.
* This removes debugging symbols.
*/
doStrip = compose.doStrip;
/* Stop Nix from stripping the binary files.
* This keeps debugging symbols.
*/
dontStrip = compose.dontStrip;
/* Useful for debugging segfaults with gdb.
* This includes dontStrip.
*/
enableDWARFDebugging = compose.enableDWARFDebugging;
/* Create a source distribution tarball like those found on hackage,
instead of building the package.
*/
sdistTarball = compose.sdistTarball;
/* Create a documentation tarball suitable for uploading to Hackage instead
of building the package.
*/
documentationTarball = compose.documentationTarball;
/* Use the gold linker. It is a linker for ELF that is designed
"to run as fast as possible on modern systems"
*/
linkWithGold = compose.linkWithGold;
/* link executables statically against haskell libs to reduce
closure size
*/
justStaticExecutables = compose.justStaticExecutables;
/* Build a source distribution tarball instead of using the source files
directly. The effect is that the package is built as if it were published
on hackage. This can be used as a test for the source distribution,
assuming the build fails when packaging mistakes are in the cabal file.
*/
buildFromSdist = compose.buildFromSdist;
/* Build the package in a strict way to uncover potential problems.
This includes buildFromSdist and failOnAllWarnings.
*/
buildStrictly = compose.buildStrictly;
/* Disable core optimizations, significantly speeds up build time */
disableOptimization = compose.disableOptimization;
/* Turn on most of the compiler warnings and fail the build if any
of them occur. */
failOnAllWarnings = compose.failOnAllWarnings;
/* Add a post-build check to verify that dependencies declared in
the cabal file are actually used.
The first attrset argument can be used to configure the strictness
of this check and a list of ignored package names that would otherwise
cause false alarms.
*/
checkUnusedPackages = compose.checkUnusedPackages;
buildStackProject = compose.buildStackProject;
/* Add a dummy command to trigger a build despite an equivalent
earlier build that is present in the store or cache.
*/
triggerRebuild = drv: i: compose.triggerRebuild i drv;
/* Override the sources for the package and optionaly the version.
This also takes of removing editedCabalFile.
*/
overrideSrc = drv: src: compose.overrideSrc src drv;
# Get all of the build inputs of a haskell package, divided by category.
getBuildInputs = compose.getBuildInputs;
# Extract the haskell build inputs of a haskell package.
# This is useful to build environments for developing on that
# package.
getHaskellBuildInputs = compose.getHaskellBuildInputs;
# Under normal evaluation, simply return the original package. Under
# nix-shell evaluation, return a nix-shell optimized environment.
shellAware = compose.shellAware;
ghcInfo = compose.ghcInfo;
### mkDerivation helpers
# These allow external users of a haskell package to extract
# information about how it is built in the same way that the
# generic haskell builder does, by reusing the same functions.
# Each function here has the same interface as mkDerivation and thus
# can be called for a given package simply by overriding the
# mkDerivation argument it used. See getHaskellBuildInputs above for
# an example of this.
# Some information about which phases should be run.
controlPhases = compose.controlPhases;
# Utility to convert a directory full of `cabal2nix`-generated files into a
# package override set
#
# packagesFromDirectory : { directory : Directory, ... } -> HaskellPackageOverrideSet
packagesFromDirectory = compose.packagesFromDirectory;
addOptparseApplicativeCompletionScripts = compose.addOptparseApplicativeCompletionScripts;
/*
Modify a Haskell package to add shell completion scripts for the
given executable produced by it. These completion scripts will be
picked up automatically if the resulting derivation is installed,
e.g. by `nix-env -i`.
Invocation:
generateOptparseApplicativeCompletions command pkg
command: name of an executable
pkg: Haskell package that builds the executables
*/
generateOptparseApplicativeCompletion = compose.generateOptparseApplicativeCompletion;
/*
Modify a Haskell package to add shell completion scripts for the
given executables produced by it. These completion scripts will be
picked up automatically if the resulting derivation is installed,
e.g. by `nix-env -i`.
Invocation:
generateOptparseApplicativeCompletions commands pkg
commands: name of an executable
pkg: Haskell package that builds the executables
*/
generateOptparseApplicativeCompletions = compose.generateOptparseApplicativeCompletions;
# 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 = compose.allowInconsistentDependencies;
}