mirror of
https://github.com/NixOS/nixpkgs.git
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521 lines
22 KiB
Nix
521 lines
22 KiB
Nix
# TODO(@Ericson2314): Remove `pkgs` param, which is only used for
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# `buildStackProject`, `justStaticExecutables` and `checkUnusedPackages`
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{ pkgs, lib }:
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rec {
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/* This function takes a file like `hackage-packages.nix` and constructs
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a full package set out of that.
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*/
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makePackageSet = import ../make-package-set.nix;
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/* The function overrideCabal lets you alter the arguments to the
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mkDerivation function.
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Example:
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First, note how the aeson package is constructed in hackage-packages.nix:
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"aeson" = callPackage ({ mkDerivation, attoparsec, <snip>
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}:
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mkDerivation {
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pname = "aeson";
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<snip>
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homepage = "https://github.com/bos/aeson";
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})
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The mkDerivation function of haskellPackages will take care of putting
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the homepage in the right place, in meta.
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> haskellPackages.aeson.meta.homepage
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"https://github.com/bos/aeson"
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> x = haskell.lib.compose.overrideCabal (old: { homepage = old.homepage + "#readme"; }) haskellPackages.aeson
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> x.meta.homepage
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"https://github.com/bos/aeson#readme"
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*/
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overrideCabal = f: drv: (drv.override (args: args // {
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mkDerivation = drv: (args.mkDerivation drv).override f;
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})) // {
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overrideScope = scope: overrideCabal f (drv.overrideScope scope);
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};
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# : Map Name (Either Path VersionNumber) -> HaskellPackageOverrideSet
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# Given a set whose values are either paths or version strings, produces
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# a package override set (i.e. (self: super: { etc. })) that sets
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# the packages named in the input set to the corresponding versions
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packageSourceOverrides =
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overrides: self: super: pkgs.lib.mapAttrs (name: src:
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let isPath = x: builtins.substring 0 1 (toString x) == "/";
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generateExprs = if isPath src
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then self.callCabal2nix
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else self.callHackage;
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in generateExprs name src {}) overrides;
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/* doCoverage modifies a haskell package to enable the generation
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and installation of a coverage report.
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See https://wiki.haskell.org/Haskell_program_coverage
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*/
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doCoverage = overrideCabal (drv: { doCoverage = true; });
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/* dontCoverage modifies a haskell package to disable the generation
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and installation of a coverage report.
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*/
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dontCoverage = overrideCabal (drv: { doCoverage = false; });
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/* doHaddock modifies a haskell package to enable the generation and
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installation of API documentation from code comments using the
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haddock tool.
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*/
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doHaddock = overrideCabal (drv: { doHaddock = true; });
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/* dontHaddock modifies a haskell package to disable the generation and
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installation of API documentation from code comments using the
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haddock tool.
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*/
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dontHaddock = overrideCabal (drv: { doHaddock = false; });
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/* doJailbreak enables the removal of version bounds from the cabal
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file. You may want to avoid this function.
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This is useful when a package reports that it can not be built
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due to version mismatches. In some cases, removing the version
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bounds entirely is an easy way to make a package build, but at
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the risk of breaking software in non-obvious ways now or in the
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future.
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Instead of jailbreaking, you can patch the cabal file.
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Note that jailbreaking at this time, doesn't lift bounds on
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conditional branches.
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https://github.com/peti/jailbreak-cabal/issues/7 has further details.
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*/
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doJailbreak = overrideCabal (drv: { jailbreak = true; });
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/* dontJailbreak restores the use of the version bounds the check
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the use of dependencies in the package description.
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*/
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dontJailbreak = overrideCabal (drv: { jailbreak = false; });
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/* doCheck enables dependency checking, compilation and execution
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of test suites listed in the package description file.
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*/
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doCheck = overrideCabal (drv: { doCheck = true; });
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/* dontCheck disables dependency checking, compilation and execution
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of test suites listed in the package description file.
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*/
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dontCheck = overrideCabal (drv: { doCheck = false; });
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/* The dontCheckIf variant sets doCheck = false if the condition
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applies. In any other case the previously set/default value is used.
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This prevents accidentally re-enabling tests in a later override.
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*/
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dontCheckIf = condition: if condition then dontCheck else lib.id;
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/* doBenchmark enables dependency checking and compilation
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for benchmarks listed in the package description file.
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Benchmarks are, however, not executed at the moment.
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*/
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doBenchmark = overrideCabal (drv: { doBenchmark = true; });
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/* dontBenchmark disables dependency checking, compilation and execution
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for benchmarks listed in the package description file.
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*/
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dontBenchmark = overrideCabal (drv: { doBenchmark = false; });
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/* doDistribute enables the distribution of binaries for the package
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via hydra.
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*/
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doDistribute = overrideCabal (drv: {
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# lib.platforms.all is the default value for platforms (since GHC can cross-compile)
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hydraPlatforms = lib.subtractLists (drv.badPlatforms or [])
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(drv.platforms or lib.platforms.all);
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});
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/* dontDistribute disables the distribution of binaries for the package
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via hydra.
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*/
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dontDistribute = overrideCabal (drv: { hydraPlatforms = []; });
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/* appendConfigureFlag adds a single argument that will be passed to the
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cabal configure command, after the arguments that have been defined
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in the initial declaration or previous overrides.
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Example:
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> haskell.lib.compose.appendConfigureFlag "--profiling-detail=all-functions" haskellPackages.servant
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*/
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appendConfigureFlag = x: appendConfigureFlags [x];
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appendConfigureFlags = xs: overrideCabal (drv: { configureFlags = (drv.configureFlags or []) ++ xs; });
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appendBuildFlag = x: overrideCabal (drv: { buildFlags = (drv.buildFlags or []) ++ [x]; });
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appendBuildFlags = xs: overrideCabal (drv: { buildFlags = (drv.buildFlags or []) ++ xs; });
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/* removeConfigureFlag drv x is a Haskell package like drv, but with
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all cabal configure arguments that are equal to x removed.
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> haskell.lib.compose.removeConfigureFlag "--verbose" haskellPackages.servant
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*/
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removeConfigureFlag = x: overrideCabal (drv: { configureFlags = lib.remove x (drv.configureFlags or []); });
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addBuildTool = x: addBuildTools [x];
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addBuildTools = xs: overrideCabal (drv: { buildTools = (drv.buildTools or []) ++ xs; });
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addExtraLibrary = x: addExtraLibraries [x];
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addExtraLibraries = xs: overrideCabal (drv: { extraLibraries = (drv.extraLibraries or []) ++ xs; });
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addBuildDepend = x: addBuildDepends [x];
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addBuildDepends = xs: overrideCabal (drv: { buildDepends = (drv.buildDepends or []) ++ xs; });
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addTestToolDepend = x: addTestToolDepends [x];
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addTestToolDepends = xs: overrideCabal (drv: { testToolDepends = (drv.testToolDepends or []) ++ xs; });
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addPkgconfigDepend = x: addPkgconfigDepends [x];
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addPkgconfigDepends = xs: overrideCabal (drv: { pkg-configDepends = (drv.pkg-configDepends or []) ++ xs; });
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addSetupDepend = x: addSetupDepends [x];
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addSetupDepends = xs: overrideCabal (drv: { setupHaskellDepends = (drv.setupHaskellDepends or []) ++ xs; });
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enableCabalFlag = x: drv: appendConfigureFlag "-f${x}" (removeConfigureFlag "-f-${x}" drv);
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disableCabalFlag = x: drv: appendConfigureFlag "-f-${x}" (removeConfigureFlag "-f${x}" drv);
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markBroken = overrideCabal (drv: { broken = true; hydraPlatforms = []; });
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unmarkBroken = overrideCabal (drv: { broken = false; });
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markBrokenVersion = version: drv: assert drv.version == version; markBroken drv;
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markUnbroken = overrideCabal (drv: { broken = false; });
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enableLibraryProfiling = overrideCabal (drv: { enableLibraryProfiling = true; });
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disableLibraryProfiling = overrideCabal (drv: { enableLibraryProfiling = false; });
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enableExecutableProfiling = overrideCabal (drv: { enableExecutableProfiling = true; });
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disableExecutableProfiling = overrideCabal (drv: { enableExecutableProfiling = false; });
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enableSharedExecutables = overrideCabal (drv: { enableSharedExecutables = true; });
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disableSharedExecutables = overrideCabal (drv: { enableSharedExecutables = false; });
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enableSharedLibraries = overrideCabal (drv: { enableSharedLibraries = true; });
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disableSharedLibraries = overrideCabal (drv: { enableSharedLibraries = false; });
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enableDeadCodeElimination = overrideCabal (drv: { enableDeadCodeElimination = true; });
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disableDeadCodeElimination = overrideCabal (drv: { enableDeadCodeElimination = false; });
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enableStaticLibraries = overrideCabal (drv: { enableStaticLibraries = true; });
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disableStaticLibraries = overrideCabal (drv: { enableStaticLibraries = false; });
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enableSeparateBinOutput = overrideCabal (drv: { enableSeparateBinOutput = true; });
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appendPatch = x: appendPatches [x];
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appendPatches = xs: overrideCabal (drv: { patches = (drv.patches or []) ++ xs; });
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/* Set a specific build target instead of compiling all targets in the package.
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* For example, imagine we have a .cabal file with a library, and 2 executables "dev" and "server".
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* We can build only "server" and not wait on the compilation of "dev" by using setBuildTarget as follows:
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*
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* > setBuildTarget "server" (callCabal2nix "thePackageName" thePackageSrc {})
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*
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*/
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setBuildTargets = xs: overrideCabal (drv: { buildTarget = lib.concatStringsSep " " xs; });
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setBuildTarget = x: setBuildTargets [x];
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doHyperlinkSource = overrideCabal (drv: { hyperlinkSource = true; });
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dontHyperlinkSource = overrideCabal (drv: { hyperlinkSource = false; });
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disableHardening = flags: overrideCabal (drv: { hardeningDisable = flags; });
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/* Let Nix strip the binary files.
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* This removes debugging symbols.
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*/
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doStrip = overrideCabal (drv: { dontStrip = false; });
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/* Stop Nix from stripping the binary files.
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* This keeps debugging symbols.
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*/
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dontStrip = overrideCabal (drv: { dontStrip = true; });
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/* Useful for debugging segfaults with gdb.
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* This includes dontStrip.
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*/
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enableDWARFDebugging = drv:
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# -g: enables debugging symbols
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# --disable-*-stripping: tell GHC not to strip resulting binaries
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# dontStrip: see above
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appendConfigureFlag "--ghc-options=-g --disable-executable-stripping --disable-library-stripping" (dontStrip drv);
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/* Create a source distribution tarball like those found on hackage,
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instead of building the package.
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*/
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sdistTarball = pkg: lib.overrideDerivation pkg (drv: {
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name = "${drv.pname}-source-${drv.version}";
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# Since we disable the haddock phase, we also need to override the
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# outputs since the separate doc output will not be produced.
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outputs = ["out"];
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buildPhase = "./Setup sdist";
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haddockPhase = ":";
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checkPhase = ":";
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installPhase = "install -D dist/${drv.pname}-*.tar.gz $out/${drv.pname}-${drv.version}.tar.gz";
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fixupPhase = ":";
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});
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/* Create a documentation tarball suitable for uploading to Hackage instead
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of building the package.
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*/
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documentationTarball = pkg:
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pkgs.lib.overrideDerivation pkg (drv: {
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name = "${drv.name}-docs";
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# Like sdistTarball, disable the "doc" output here.
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outputs = [ "out" ];
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buildPhase = ''
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runHook preHaddock
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./Setup haddock --for-hackage
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runHook postHaddock
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'';
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haddockPhase = ":";
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checkPhase = ":";
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installPhase = ''
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runHook preInstall
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mkdir -p "$out"
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tar --format=ustar \
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-czf "$out/${drv.name}-docs.tar.gz" \
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-C dist/doc/html "${drv.name}-docs"
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runHook postInstall
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'';
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});
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/* Use the gold linker. It is a linker for ELF that is designed
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"to run as fast as possible on modern systems"
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*/
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linkWithGold = appendConfigureFlag
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"--ghc-option=-optl-fuse-ld=gold --ld-option=-fuse-ld=gold --with-ld=ld.gold";
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/* link executables statically against haskell libs to reduce
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closure size
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*/
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justStaticExecutables = overrideCabal (drv: {
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enableSharedExecutables = false;
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enableLibraryProfiling = drv.enableExecutableProfiling or false;
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isLibrary = false;
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doHaddock = false;
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postFixup = drv.postFixup or "" + ''
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# Remove every directory which could have links to other store paths.
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rm -rf $out/lib $out/nix-support $out/share/doc
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'';
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disallowGhcReference = true;
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});
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/* Build a source distribution tarball instead of using the source files
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directly. The effect is that the package is built as if it were published
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on hackage. This can be used as a test for the source distribution,
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assuming the build fails when packaging mistakes are in the cabal file.
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A faster implementation using `cabal-install` is available as
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`buildFromCabalSdist` in your Haskell package set.
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*/
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buildFromSdist = pkg: overrideCabal (drv: {
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src = "${sdistTarball pkg}/${pkg.pname}-${pkg.version}.tar.gz";
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# Revising and jailbreaking the cabal file has been handled in sdistTarball
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revision = null;
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editedCabalFile = null;
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jailbreak = false;
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}) pkg;
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/* Build the package in a strict way to uncover potential problems.
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This includes buildFromSdist and failOnAllWarnings.
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*/
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buildStrictly = pkg: buildFromSdist (failOnAllWarnings pkg);
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/* Disable core optimizations, significantly speeds up build time */
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disableOptimization = appendConfigureFlag "--disable-optimization";
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/* Turn on most of the compiler warnings and fail the build if any
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of them occur. */
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failOnAllWarnings = appendConfigureFlag "--ghc-option=-Wall --ghc-option=-Werror";
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/* Add a post-build check to verify that dependencies declared in
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the cabal file are actually used.
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The first attrset argument can be used to configure the strictness
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of this check and a list of ignored package names that would otherwise
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cause false alarms.
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*/
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checkUnusedPackages =
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{ ignoreEmptyImports ? false
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, ignoreMainModule ? false
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, ignorePackages ? []
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} : drv :
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overrideCabal (_drv: {
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postBuild =
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let args = lib.concatStringsSep " " (
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lib.optional ignoreEmptyImports "--ignore-empty-imports" ++
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lib.optional ignoreMainModule "--ignore-main-module" ++
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map (pkg: "--ignore-package ${pkg}") ignorePackages
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);
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in "${pkgs.haskellPackages.packunused}/bin/packunused" +
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lib.optionalString (args != "") " ${args}";
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}) (appendConfigureFlag "--ghc-option=-ddump-minimal-imports" drv);
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buildStackProject = pkgs.callPackage ../generic-stack-builder.nix { };
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/* Add a dummy command to trigger a build despite an equivalent
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earlier build that is present in the store or cache.
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*/
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triggerRebuild = i: overrideCabal (drv: {
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postUnpack = drv.postUnpack or "" + ''
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# trigger rebuild ${toString i}
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'';
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});
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/* Override the sources for the package and optionally the version.
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This also takes of removing editedCabalFile.
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*/
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overrideSrc = { src, version ? null }: drv:
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overrideCabal (_: { inherit src; version = if version == null then drv.version else version; editedCabalFile = null; }) drv;
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# Get all of the build inputs of a haskell package, divided by category.
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getBuildInputs = p: p.getBuildInputs;
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# Extract the haskell build inputs of a haskell package.
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# This is useful to build environments for developing on that
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# package.
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getHaskellBuildInputs = p: (getBuildInputs p).haskellBuildInputs;
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# Under normal evaluation, simply return the original package. Under
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# nix-shell evaluation, return a nix-shell optimized environment.
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shellAware = p: if lib.inNixShell then p.env else p;
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ghcInfo = ghc:
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rec { isCross = (ghc.cross or null) != null;
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isGhcjs = ghc.isGhcjs or false;
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nativeGhc = if isCross || isGhcjs
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then ghc.bootPkgs.ghc
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else ghc;
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};
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### mkDerivation helpers
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# These allow external users of a haskell package to extract
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# information about how it is built in the same way that the
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# generic haskell builder does, by reusing the same functions.
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# Each function here has the same interface as mkDerivation and thus
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# can be called for a given package simply by overriding the
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# mkDerivation argument it used. See getHaskellBuildInputs above for
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# an example of this.
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# Some information about which phases should be run.
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controlPhases = ghc: let inherit (ghcInfo ghc) isCross; in
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{ doCheck ? !isCross
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, doBenchmark ? false
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, ...
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}: { inherit doCheck doBenchmark; };
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# Utility to convert a directory full of `cabal2nix`-generated files into a
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# package override set
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#
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# packagesFromDirectory : { directory : Directory, ... } -> HaskellPackageOverrideSet
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packagesFromDirectory =
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{ directory, ... }:
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self: super:
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let
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haskellPaths =
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lib.filter (lib.hasSuffix ".nix")
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(builtins.attrNames (builtins.readDir directory));
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toKeyVal = file: {
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name = builtins.replaceStrings [ ".nix" ] [ "" ] file;
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value = self.callPackage (directory + "/${file}") { };
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};
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in
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builtins.listToAttrs (map toKeyVal haskellPaths);
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/*
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INTERNAL function retained for backwards compatibility, use
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haskell.packages.*.generateOptparseApplicativeCompletions instead!
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*/
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__generateOptparseApplicativeCompletion = exeName: overrideCabal (drv: {
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postInstall = (drv.postInstall or "") + ''
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bashCompDir="''${!outputBin}/share/bash-completion/completions"
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zshCompDir="''${!outputBin}/share/zsh/vendor-completions"
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fishCompDir="''${!outputBin}/share/fish/vendor_completions.d"
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mkdir -p "$bashCompDir" "$zshCompDir" "$fishCompDir"
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"''${!outputBin}/bin/${exeName}" --bash-completion-script "''${!outputBin}/bin/${exeName}" >"$bashCompDir/${exeName}"
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"''${!outputBin}/bin/${exeName}" --zsh-completion-script "''${!outputBin}/bin/${exeName}" >"$zshCompDir/_${exeName}"
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"''${!outputBin}/bin/${exeName}" --fish-completion-script "''${!outputBin}/bin/${exeName}" >"$fishCompDir/${exeName}.fish"
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# Sanity check
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grep -F ${exeName} <$bashCompDir/${exeName} >/dev/null || {
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echo 'Could not find ${exeName} in completion script.'
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exit 1
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}
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'';
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});
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/*
|
|
Retained for backwards compatibility.
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|
Use haskell.packages.*.generateOptparseApplicativeCompletions
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|
which is cross aware instead.
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|
*/
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|
generateOptparseApplicativeCompletions = commands: pkg:
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|
lib.warnIf (lib.isInOldestRelease 2211) "haskellLib.generateOptparseApplicativeCompletions is deprecated in favor of haskellPackages.generateOptparseApplicativeCompletions. Please change ${pkg.name} to use the latter and make sure it uses its matching haskell.packages set!"
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|
(pkgs.lib.foldr __generateOptparseApplicativeCompletion pkg commands);
|
|
|
|
/*
|
|
Retained for backwards compatibility.
|
|
Use haskell.packages.*.generateOptparseApplicativeCompletions
|
|
which is cross aware instead.
|
|
*/
|
|
generateOptparseApplicativeCompletion = command: pkg:
|
|
lib.warnIf (lib.isInOldestRelease 2211) "haskellLib.generateOptparseApplicativeCompletion is deprecated in favor of haskellPackages.generateOptparseApplicativeCompletions (plural!). Please change ${pkg.name} to use the latter and make sure it uses its matching haskell.packages set!"
|
|
(__generateOptparseApplicativeCompletion command pkg);
|
|
|
|
# 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 = overrideCabal (drv: {
|
|
allowInconsistentDependencies = true;
|
|
});
|
|
|
|
# Work around a Cabal bug requiring pkg-config --static --libs to work even
|
|
# when linking dynamically, affecting Cabal 3.8 and 3.9.
|
|
# https://github.com/haskell/cabal/issues/8455
|
|
#
|
|
# For this, we treat the runtime system/pkg-config dependencies of a Haskell
|
|
# derivation as if they were propagated from their dependencies which allows
|
|
# pkg-config --static to work in most cases.
|
|
#
|
|
# Warning: This function may change or be removed at any time, e.g. if we find
|
|
# a different workaround, upstream fixes the bug or we patch Cabal.
|
|
__CabalEagerPkgConfigWorkaround =
|
|
let
|
|
# Take list of derivations and return list of the transitive dependency
|
|
# closure, only taking into account buildInputs. Loosely based on
|
|
# closePropagationFast.
|
|
propagatedPlainBuildInputs = drvs:
|
|
builtins.map (i: i.val) (
|
|
builtins.genericClosure {
|
|
startSet = builtins.map (drv:
|
|
{ key = drv.outPath; val = drv; }
|
|
) drvs;
|
|
operator = { val, ... }:
|
|
if !lib.isDerivation val
|
|
then [ ]
|
|
else
|
|
builtins.concatMap (drv:
|
|
if !lib.isDerivation drv
|
|
then [ ]
|
|
else [ { key = drv.outPath; val = drv; } ]
|
|
) (val.buildInputs or [ ] ++ val.propagatedBuildInputs or [ ]);
|
|
}
|
|
);
|
|
in
|
|
overrideCabal (old: {
|
|
benchmarkPkgconfigDepends = propagatedPlainBuildInputs old.benchmarkPkgconfigDepends or [ ];
|
|
executablePkgconfigDepends = propagatedPlainBuildInputs old.executablePkgconfigDepends or [ ];
|
|
libraryPkgconfigDepends = propagatedPlainBuildInputs old.libraryPkgconfigDepends or [ ];
|
|
testPkgconfigDepends = propagatedPlainBuildInputs old.testPkgconfigDepends or [ ];
|
|
});
|
|
}
|