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1# TODO(@Ericson2314): Remove `pkgs` param, which is only used for 2# `buildStackProject`, `justStaticExecutables` and `checkUnusedPackages` 3{ pkgs, lib }: 4 5rec { 6 /* 7 The same functionality as this haskell.lib, except that the derivation 8 being overridden is always the last parameter. This permits more natural 9 composition of several overrides, i.e. without having to nestle one call 10 between the function name and argument of another. haskell.lib.compose is 11 preferred for any new code. 12 */ 13 compose = import ./compose.nix { inherit pkgs lib; }; 14 15 /* 16 This function takes a file like `hackage-packages.nix` and constructs 17 a full package set out of that. 18 */ 19 makePackageSet = compose.makePackageSet; 20 21 /* 22 The function overrideCabal lets you alter the arguments to the 23 mkDerivation function. 24 25 Example: 26 27 First, note how the aeson package is constructed in hackage-packages.nix: 28 29 "aeson" = callPackage ({ mkDerivation, attoparsec, <snip> 30 }: 31 mkDerivation { 32 pname = "aeson"; 33 <snip> 34 homepage = "https://github.com/bos/aeson"; 35 }) 36 37 The mkDerivation function of haskellPackages will take care of putting 38 the homepage in the right place, in meta. 39 40 > haskellPackages.aeson.meta.homepage 41 "https://github.com/bos/aeson" 42 43 > x = haskell.lib.overrideCabal haskellPackages.aeson (old: { homepage = old.homepage + "#readme"; }) 44 > x.meta.homepage 45 "https://github.com/bos/aeson#readme" 46 */ 47 overrideCabal = drv: f: compose.overrideCabal f drv; 48 49 # : Map Name (Either Path VersionNumber) -> HaskellPackageOverrideSet 50 # Given a set whose values are either paths or version strings, produces 51 # a package override set (i.e. (self: super: { etc. })) that sets 52 # the packages named in the input set to the corresponding versions 53 packageSourceOverrides = compose.packageSourceOverrides; 54 55 /* 56 doCoverage modifies a haskell package to enable the generation 57 and installation of a coverage report. 58 59 See https://wiki.haskell.org/Haskell_program_coverage 60 */ 61 doCoverage = compose.doCoverage; 62 63 /* 64 dontCoverage modifies a haskell package to disable the generation 65 and installation of a coverage report. 66 */ 67 dontCoverage = compose.dontCoverage; 68 69 /* 70 doHaddock modifies a haskell package to enable the generation and 71 installation of API documentation from code comments using the 72 haddock tool. 73 */ 74 doHaddock = compose.doHaddock; 75 76 /* 77 dontHaddock modifies a haskell package to disable the generation and 78 installation of API documentation from code comments using the 79 haddock tool. 80 */ 81 dontHaddock = compose.dontHaddock; 82 83 /* 84 doJailbreak enables the removal of version bounds from the cabal 85 file. You may want to avoid this function. 86 87 This is useful when a package reports that it can not be built 88 due to version mismatches. In some cases, removing the version 89 bounds entirely is an easy way to make a package build, but at 90 the risk of breaking software in non-obvious ways now or in the 91 future. 92 93 Instead of jailbreaking, you can patch the cabal file. 94 95 Note that jailbreaking at this time, doesn't lift bounds on 96 conditional branches. 97 https://github.com/peti/jailbreak-cabal/issues/7 has further details. 98 */ 99 doJailbreak = compose.doJailbreak; 100 101 /* 102 dontJailbreak restores the use of the version bounds the check 103 the use of dependencies in the package description. 104 */ 105 dontJailbreak = compose.dontJailbreak; 106 107 /* 108 doCheck enables dependency checking, compilation and execution 109 of test suites listed in the package description file. 110 */ 111 doCheck = compose.doCheck; 112 /* 113 dontCheck disables dependency checking, compilation and execution 114 of test suites listed in the package description file. 115 */ 116 dontCheck = compose.dontCheck; 117 /* 118 The dontCheckIf variant sets doCheck = false if the condition 119 applies. In any other case the previously set/default value is used. 120 This prevents accidentally re-enabling tests in a later override. 121 */ 122 dontCheckIf = drv: condition: compose.dontCheckIf condition drv; 123 124 /* 125 doBenchmark enables dependency checking, compilation and execution 126 for benchmarks listed in the package description file. 127 */ 128 doBenchmark = compose.doBenchmark; 129 /* 130 dontBenchmark disables dependency checking, compilation and execution 131 for benchmarks listed in the package description file. 132 */ 133 dontBenchmark = compose.dontBenchmark; 134 135 /* 136 doDistribute enables the distribution of binaries for the package 137 via hydra. 138 */ 139 doDistribute = compose.doDistribute; 140 /* 141 dontDistribute disables the distribution of binaries for the package 142 via hydra. 143 */ 144 dontDistribute = compose.dontDistribute; 145 146 /* 147 appendConfigureFlag adds a single argument that will be passed to the 148 cabal configure command, after the arguments that have been defined 149 in the initial declaration or previous overrides. 150 151 Example: 152 153 > haskell.lib.appendConfigureFlag haskellPackages.servant "--profiling-detail=all-functions" 154 */ 155 appendConfigureFlag = drv: x: compose.appendConfigureFlag x drv; 156 appendConfigureFlags = drv: xs: compose.appendConfigureFlags xs drv; 157 158 appendBuildFlag = drv: x: compose.appendBuildFlag x drv; 159 appendBuildFlags = drv: xs: compose.appendBuildFlags xs drv; 160 161 /* 162 removeConfigureFlag drv x is a Haskell package like drv, but with 163 all cabal configure arguments that are equal to x removed. 164 165 > haskell.lib.removeConfigureFlag haskellPackages.servant "--verbose" 166 */ 167 removeConfigureFlag = drv: x: compose.removeConfigureFlag x drv; 168 169 addBuildTool = drv: x: compose.addBuildTool x drv; 170 addBuildTools = drv: xs: compose.addBuildTools xs drv; 171 172 addExtraLibrary = drv: x: compose.addExtraLibrary x drv; 173 addExtraLibraries = drv: xs: compose.addExtraLibraries xs drv; 174 175 addBuildDepend = drv: x: compose.addBuildDepend x drv; 176 addBuildDepends = drv: xs: compose.addBuildDepends xs drv; 177 178 addTestToolDepend = drv: x: compose.addTestToolDepend x drv; 179 addTestToolDepends = drv: xs: compose.addTestToolDepends xs drv; 180 181 addPkgconfigDepend = drv: x: compose.addPkgconfigDepend x drv; 182 addPkgconfigDepends = drv: xs: compose.addPkgconfigDepends xs drv; 183 184 addSetupDepend = drv: x: compose.addSetupDepend x drv; 185 addSetupDepends = drv: xs: compose.addSetupDepends xs drv; 186 187 enableCabalFlag = drv: x: compose.enableCabalFlag x drv; 188 disableCabalFlag = drv: x: compose.disableCabalFlag x drv; 189 190 markBroken = compose.markBroken; 191 unmarkBroken = compose.unmarkBroken; 192 markBrokenVersion = compose.markBrokenVersion; 193 markUnbroken = compose.markUnbroken; 194 195 disableParallelBuilding = compose.disableParallelBuilding; 196 197 enableLibraryProfiling = compose.enableLibraryProfiling; 198 disableLibraryProfiling = compose.disableLibraryProfiling; 199 200 enableExecutableProfiling = compose.enableExecutableProfiling; 201 disableExecutableProfiling = compose.disableExecutableProfiling; 202 203 enableSharedExecutables = compose.enableSharedExecutables; 204 disableSharedExecutables = compose.disableSharedExecutables; 205 206 enableSharedLibraries = compose.enableSharedLibraries; 207 disableSharedLibraries = compose.disableSharedLibraries; 208 209 enableDeadCodeElimination = compose.enableDeadCodeElimination; 210 disableDeadCodeElimination = compose.disableDeadCodeElimination; 211 212 enableStaticLibraries = compose.enableStaticLibraries; 213 disableStaticLibraries = compose.disableStaticLibraries; 214 215 enableSeparateBinOutput = compose.enableSeparateBinOutput; 216 217 appendPatch = drv: x: compose.appendPatch x drv; 218 appendPatches = drv: xs: compose.appendPatches xs drv; 219 220 /* 221 Set a specific build target instead of compiling all targets in the package. 222 For example, imagine we have a .cabal file with a library, and 2 executables "dev" and "server". 223 We can build only "server" and not wait on the compilation of "dev" by using setBuildTarget as follows: 224 225 setBuildTarget (callCabal2nix "thePackageName" thePackageSrc {}) "server" 226 */ 227 setBuildTargets = drv: xs: compose.setBuildTargets xs drv; 228 setBuildTarget = drv: x: compose.setBuildTarget x drv; 229 230 doHyperlinkSource = compose.doHyperlinkSource; 231 dontHyperlinkSource = compose.dontHyperlinkSource; 232 233 disableHardening = drv: flags: compose.disableHardening flags drv; 234 235 /* 236 Let Nix strip the binary files. 237 This removes debugging symbols. 238 */ 239 doStrip = compose.doStrip; 240 241 /* 242 Stop Nix from stripping the binary files. 243 This keeps debugging symbols. 244 */ 245 dontStrip = compose.dontStrip; 246 247 /* 248 Useful for debugging segfaults with gdb. 249 This includes dontStrip. 250 */ 251 enableDWARFDebugging = compose.enableDWARFDebugging; 252 253 /* 254 Create a source distribution tarball like those found on hackage, 255 instead of building the package. 256 */ 257 sdistTarball = compose.sdistTarball; 258 259 /* 260 Create a documentation tarball suitable for uploading to Hackage instead 261 of building the package. 262 */ 263 documentationTarball = compose.documentationTarball; 264 265 /* 266 Use the gold linker. It is a linker for ELF that is designed 267 "to run as fast as possible on modern systems" 268 */ 269 linkWithGold = compose.linkWithGold; 270 271 /* 272 link executables statically against haskell libs to reduce 273 closure size 274 */ 275 justStaticExecutables = compose.justStaticExecutables; 276 277 /* 278 Build a source distribution tarball instead of using the source files 279 directly. The effect is that the package is built as if it were published 280 on hackage. This can be used as a test for the source distribution, 281 assuming the build fails when packaging mistakes are in the cabal file. 282 */ 283 buildFromSdist = compose.buildFromSdist; 284 285 /* 286 Build the package in a strict way to uncover potential problems. 287 This includes buildFromSdist and failOnAllWarnings. 288 */ 289 buildStrictly = compose.buildStrictly; 290 291 # Disable core optimizations, significantly speeds up build time 292 disableOptimization = compose.disableOptimization; 293 294 /* 295 Turn on most of the compiler warnings and fail the build if any 296 of them occur. 297 */ 298 failOnAllWarnings = compose.failOnAllWarnings; 299 300 /* 301 Add a post-build check to verify that dependencies declared in 302 the cabal file are actually used. 303 304 The first attrset argument can be used to configure the strictness 305 of this check and a list of ignored package names that would otherwise 306 cause false alarms. 307 */ 308 checkUnusedPackages = compose.checkUnusedPackages; 309 310 buildStackProject = compose.buildStackProject; 311 312 /* 313 Add a dummy command to trigger a build despite an equivalent 314 earlier build that is present in the store or cache. 315 */ 316 triggerRebuild = drv: i: compose.triggerRebuild i drv; 317 318 /* 319 Override the sources for the package and optionally the version. 320 This also takes of removing editedCabalFile. 321 */ 322 overrideSrc = drv: src: compose.overrideSrc src drv; 323 324 # Get all of the build inputs of a haskell package, divided by category. 325 getBuildInputs = compose.getBuildInputs; 326 327 # Extract the haskell build inputs of a haskell package. 328 # This is useful to build environments for developing on that 329 # package. 330 getHaskellBuildInputs = compose.getHaskellBuildInputs; 331 332 # Under normal evaluation, simply return the original package. Under 333 # nix-shell evaluation, return a nix-shell optimized environment. 334 shellAware = compose.shellAware; 335 336 # Utility to convert a directory full of `cabal2nix`-generated files into a 337 # package override set 338 # 339 # packagesFromDirectory : { directory : Directory, ... } -> HaskellPackageOverrideSet 340 packagesFromDirectory = compose.packagesFromDirectory; 341 342 addOptparseApplicativeCompletionScripts = 343 exeName: pkg: 344 lib.warn "addOptparseApplicativeCompletionScripts 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!" ( 345 compose.__generateOptparseApplicativeCompletion exeName pkg 346 ); 347 348 /* 349 Modify a Haskell package to add shell completion scripts for the 350 given executable produced by it. These completion scripts will be 351 picked up automatically if the resulting derivation is installed, 352 e.g. by `nix-env -i`. 353 354 Invocation: 355 generateOptparseApplicativeCompletions command pkg 356 357 command: name of an executable 358 pkg: Haskell package that builds the executables 359 */ 360 generateOptparseApplicativeCompletion = compose.generateOptparseApplicativeCompletion; 361 362 /* 363 Modify a Haskell package to add shell completion scripts for the 364 given executables produced by it. These completion scripts will be 365 picked up automatically if the resulting derivation is installed, 366 e.g. by `nix-env -i`. 367 368 Invocation: 369 generateOptparseApplicativeCompletions commands pkg 370 371 commands: name of an executable 372 pkg: Haskell package that builds the executables 373 */ 374 generateOptparseApplicativeCompletions = compose.generateOptparseApplicativeCompletions; 375 376 # Don't fail at configure time if there are multiple versions of the 377 # same package in the (recursive) dependencies of the package being 378 # built. Will delay failures, if any, to compile time. 379 allowInconsistentDependencies = compose.allowInconsistentDependencies; 380}