maintainers/haskell: generate core-pkgs hackage2nix configuration
`ghc-pkg list` tells us everything hackage2nix needs to know. In the past the core-packages list and compiler setting in hackage2nix was maintained manually which inevitably leads to it being forgot once in a while – this will then mess with flag resolution when generating the package set in some cases. Luckily, we can just let a simple derivation do this for us. Resolves #202621.
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sternenseemann
parent
16078721aa
commit
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3 changed files with 43 additions and 47 deletions
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@ -11,6 +11,9 @@
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# Related scripts are update-hackage.sh, for updating the snapshot of the
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# Hackage database used by hackage2nix, and update-cabal2nix-unstable.sh,
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# for updating the version of hackage2nix used to perform this task.
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#
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# Note that this script doesn't gcroot anything, so it may be broken by an
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# unfortunately timed nix-store --gc.
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set -euo pipefail
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@ -20,15 +23,21 @@ HACKAGE2NIX="${HACKAGE2NIX:-hackage2nix}"
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# See: https://github.com/NixOS/nixpkgs/pull/122023
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export LC_ALL=C.UTF-8
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config_dir=pkgs/development/haskell-modules/configuration-hackage2nix
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echo "Obtaining Hackage data"
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extraction_derivation='with import ./. {}; runCommandLocal "unpacked-cabal-hashes" { } "tar xf ${all-cabal-hashes} --strip-components=1 --one-top-level=$out"'
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unpacked_hackage="$(nix-build -E "$extraction_derivation" --no-out-link)"
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config_dir=pkgs/development/haskell-modules/configuration-hackage2nix
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echo "Generating compiler configuration"
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compiler_config="$(nix-build -A haskellPackages.cabal2nix-unstable.compilerConfig --no-out-link)"
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echo "Starting hackage2nix to regenerate pkgs/development/haskell-modules/hackage-packages.nix ..."
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"$HACKAGE2NIX" \
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--hackage "$unpacked_hackage" \
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--preferred-versions <(for n in "$unpacked_hackage"/*/preferred-versions; do cat "$n"; echo; done) \
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--nixpkgs "$PWD" \
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--config "$compiler_config" \
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--config "$config_dir/main.yaml" \
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--config "$config_dir/stackage.yaml" \
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--config "$config_dir/broken.yaml" \
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@ -1815,7 +1815,38 @@ self: super: {
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database-id-class = doJailbreak super.database-id-class;
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cabal2nix-unstable = overrideCabal {
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passthru.updateScript = ../../../maintainers/scripts/haskell/update-cabal2nix-unstable.sh;
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passthru = {
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updateScript = ../../../maintainers/scripts/haskell/update-cabal2nix-unstable.sh;
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# This is used by regenerate-hackage-packages.nix to supply the configuration
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# values we can easily generate automatically without checking them in.
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compilerConfig =
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pkgs.runCommand
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"hackage2nix-${self.ghc.haskellCompilerName}-config.yaml"
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{
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nativeBuildInputs = [
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self.ghc
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];
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}
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''
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cat > "$out" << EOF
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# generated by haskellPackages.cabal2nix-unstable.compilerConfig
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compiler: ${self.ghc.haskellCompilerName}
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core-packages:
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# Hack: The following package is a core package of GHCJS. If we don't declare
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# it, then hackage2nix will generate a Hackage database where all dependants
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# of this library are marked as "broken".
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- ghcjs-base-0
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EOF
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ghc-pkg list \
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| tail -n '+2' \
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| sed -e 's/[()]//g' -e 's/\s\+/ - /' \
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>> "$out"
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'';
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};
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} super.cabal2nix-unstable;
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# Too strict version bounds on base
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@ -1,48 +1,4 @@
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# pkgs/development/haskell-modules/configuration-hackage2nix.yaml
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compiler: ghc-9.2.4
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core-packages:
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- Cabal-3.6.3.0
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- array-0.5.4.0
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- base-4.16.3.0
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- binary-0.8.9.0
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- bytestring-0.11.3.1
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- containers-0.6.5.1
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- deepseq-1.4.6.1
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- directory-1.3.6.2
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- exceptions-0.10.4
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- filepath-1.4.2.2
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- ghc-9.2.4
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- ghc-bignum-1.2
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- ghc-boot-9.2.4
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- ghc-boot-th-9.2.4
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- ghc-compact-0.1.0.0
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- ghc-heap-9.2.4
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- ghc-prim-0.8.0
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- ghci-9.2.4
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- haskeline-0.8.2
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- hpc-0.6.1.0
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- integer-gmp-1.1
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- libiserv-9.2.4
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- mtl-2.2.2
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- parsec-3.1.15.0
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- pretty-1.1.3.6
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- process-1.6.13.2
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- rts-1.0.2
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- stm-2.5.0.2
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- template-haskell-2.18.0.0
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- terminfo-0.4.1.5
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- text-1.2.5.0
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- time-1.11.1.1
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- transformers-0.5.6.2
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- unix-2.7.2.2
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- xhtml-3000.2.2.1
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# Hack: The following package is a core package of GHCJS. If we don't declare
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# it, then hackage2nix will generate a Hackage database where all dependants
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# of this library are marked as "broken".
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- ghcjs-base-0
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# pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
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# This is a list of packages with versions from the latest Stackage LTS release.
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#
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