Merge pull request #59024 from matthewbauer/hackage-mirrors

haskell: add fpcomplete mirror, use hackage mirrors in more places

pkgs/development/haskell-modules/generic-builder.nix

@@ -118,7 +118,7 @@ let
 
   binDir = if enableSeparateBinOutput then "$bin/bin" else "$out/bin";
 
-  newCabalFileUrl = "http://hackage.haskell.org/package/${pname}-${version}/revision/${revision}.cabal";
+  newCabalFileUrl = "mirror://hackage/${pname}-${version}/revision/${revision}.cabal";
   newCabalFile = fetchurl {
     url = newCabalFileUrl;
     sha256 = editedCabalFile;

pkgs/development/haskell-modules/make-package-set.nix

@@ -183,7 +183,7 @@ in package-set { inherit pkgs stdenv callPackage; } self // {
     callHackageDirect = {pkg, ver, sha256}@args:
       let pkgver = "${pkg}-${ver}";
       in self.callCabal2nix pkg (pkgs.fetchzip {
-           url = "http://hackage.haskell.org/package/${pkgver}/${pkgver}.tar.gz";
+           url = "mirror://hackage/${pkgver}/${pkgver}.tar.gz";
            inherit sha256;
          });