tjh.dev
1{ runCommand, haskellPackages, lib, all-cabal-hashes, writeShellScript }:
2let
3 # Checks if the version looks like a Haskell PVP version which is the format
4 # Hackage enforces. This will return false if the version strings is empty or
5 # we've overridden the package to ship an unstable version of the package
6 # (sadly there's no good way to show something useful on hackage in this case).
7 isPvpVersion = v: builtins.match "([0-9]+)(\\.[0-9]+)*" v != null;
8
9 pkgLine = name: pkg:
10 let
11 version = pkg.version or "";
12 in
13 lib.optionalString (isPvpVersion version)
14 ''"${name}","${version}","http://hydra.nixos.org/job/nixpkgs/trunk/haskellPackages.${name}.x86_64-linux"'';
15 all-haskellPackages = builtins.toFile "all-haskellPackages" (lib.concatStringsSep "\n" (lib.filter (x: x != "") (lib.mapAttrsToList pkgLine haskellPackages)));
16in
17runCommand "hackage-package-list" { }
18 # This command will make a join between all packages on hackage and haskellPackages.*.
19 # It creates a valid csv file which can be uploaded to hackage.haskell.org.
20 # The call is wrapped in echo $(...) to trim trailing newline, which hackage requires.
21 ''
22 mkdir -p $out/bin
23 echo -n "$(tar -t -f ${all-cabal-hashes} | sed 's![^/]*/\([^/]*\)/.*!"\1"!' | sort -u | join -t , - ${all-haskellPackages})" > $out/nixos-hackage-packages.csv
24 ''