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Although the default ghc used by haskell.nix is ghc 8.6.5 many of the tools used in haskell.nix are still built with the boot compiler ghc 8.4.4. These include * haskell-nix.cabal-install * haskell-nix.alex * haskell-nix.happy This change updates those to ghc 8.6.5 and includes materializations for the new versions. When cabal-install is built it is careful to disable materialization checks on the version of itself used during the build to avoid infinite recursion. There was a version of nix-tools built with the boot ghc which was only used when `checkMaterialization = true`. It was used for the boot versions of alex, happy and hscolour. These have been update to use the default (ghc 8.6.5) version of nix-tools and checkMaterialization is forced off when they are being used to build ghc. This means the materialization will only be checked for these when they are built independently (they are included in the test set via haskellNixRoots). Three new arguments are added to `default.nix`: * `defaultCompilerNixName` if not specified "ghc865" is used * `checkMaterialization` makes it easier to switch on materialization checks * `system` defaults to `builtins.currentSystem` This change also moves the work needed for hydra eval to the eval system using a new `evalPackages` feature. This includes: * Fetching from git with `fetchgit` * Building scripts with `runCommand` and `writeTextFile` * `git ls-files` in `cleanGit` * running `cabal v2-configure` * copying materialized files (we are not sure why this is necessary but if we do not `cp -r` the files nix will not load them on hydra) Reduce size of `make-config-files.nix` strings by around 80%. These are unlikely to be the cause of hydra eval time memory issues in the GB range, but were still quite large (around 10MB for the `cabal-simple` test case). There was issue causing excessive builds of the `git` package when cross compiling. Gory details are a comment in `lib/defaults.nix` but in short if you use `git` you need an extra `.buildPackages` one is not enough because it depends on `gdb` and that will be different in `buildPackages` compared to `buildPackages.buildPackages`. Adds missing materialization files for ghc 8.4.4 (only needed when `checkMaterialization` is on because of other materialiazations, but good to have).
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8 lines
267 B
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# GitHub Linguist annotations.
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# Hide stuff that is generated by nix-tools plan-to-nix
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nix-tools/.plan.nix/*.nix linguist-generated=true
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nix-tools/pkgs.nix linguist-generated=true
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.stack-to-nix.cache linguist-generated=true
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materialized/**/* linguist-generated=true
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