4e4a88d03a
Since this list is intended for Hackage, we need to make sure that only packages with versions conforming to the PVP versioning scheme are actually included in the CSV or Hackage will reject it.
25 lines
1.3 KiB
Nix
25 lines
1.3 KiB
Nix
{ runCommand, haskellPackages, lib, all-cabal-hashes, writeShellScript }:
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let
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# Checks if the version looks like a Haskell PVP version which is the format
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# Hackage enforces. This will return false if the version strings is empty or
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# we've overridden the package to ship an unstable version of the package
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# (sadly there's no good way to show something useful on hackage in this case).
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isPvpVersion = v: builtins.match "([0-9]+)(\\.[0-9]+)*" v != null;
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pkgLine = name: pkg:
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let
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version = pkg.version or "";
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in
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if isPvpVersion version then
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''"${name}","${version}","http://hydra.nixos.org/job/nixpkgs/trunk/haskellPackages.${name}.x86_64-linux"''
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else "";
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all-haskellPackages = builtins.toFile "all-haskellPackages" (lib.concatStringsSep "\n" (lib.filter (x: x != "") (lib.mapAttrsToList pkgLine haskellPackages)));
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in
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runCommand "hackage-package-list" { }
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# This command will make a join between all packages on hackage and haskellPackages.*.
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# It creates a valid csv file which can be uploaded to hackage.haskell.org.
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# The call is wrapped in echo $(...) to trim trailing newline, which hackage requires.
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''
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mkdir -p $out/bin
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echo -n "$(tar -t -f ${all-cabal-hashes} | sed 's![^/]*/\([^/]*\)/.*!"\1"!' | sort -u | join -t , - ${all-haskellPackages})" > $out/nixos-hackage-packages.csv
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''
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