base58

Pure Haskell base58, base58check encoding/decoding (docs.ppad.tech/base58).
git clone git://git.ppad.tech/base58.git
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flake.nix (2603B)

      1 {
      2   description = "Pure Haskell base58 and base58check encodings.";
      3 
      4   inputs = {
      5     ppad-nixpkgs = {
      6       type = "git";
      7       url  = "git://git.ppad.tech/nixpkgs.git";
      8       ref  = "master";
      9     };
     10     ppad-base16 = {
     11       type = "git";
     12       url  = "git://git.ppad.tech/base16.git";
     13       ref  = "master";
     14       inputs.ppad-nixpkgs.follows = "ppad-nixpkgs";
     15     };
     16     ppad-sha256 = {
     17       type = "git";
     18       url  = "git://git.ppad.tech/sha256.git";
     19       ref  = "master";
     20       inputs.ppad-base16.follows = "ppad-base16";
     21       inputs.ppad-nixpkgs.follows = "ppad-nixpkgs";
     22     };
     23     flake-utils.follows = "ppad-nixpkgs/flake-utils";
     24     nixpkgs.follows = "ppad-nixpkgs/nixpkgs";
     25   };
     26 
     27   outputs = { self, nixpkgs, flake-utils, ppad-nixpkgs
     28             , ppad-base16, ppad-sha256
     29             }:
     30     flake-utils.lib.eachDefaultSystem (system:
     31       let
     32         lib = "ppad-base58";
     33 
     34         pkgs = import nixpkgs { inherit system; };
     35         hlib  = pkgs.haskell.lib;
     36         llvm  = pkgs.llvmPackages_19.llvm;
     37         clang = pkgs.llvmPackages_19.clang;
     38 
     39         base16 = ppad-base16.packages.${system}.default;
     40         base16-llvm =
     41           hlib.addBuildTools
     42             (hlib.enableCabalFlag base16 "llvm")
     43             [ llvm clang ];
     44 
     45         sha256 = ppad-sha256.packages.${system}.default;
     46         sha256-llvm =
     47           hlib.addBuildTools
     48             (hlib.enableCabalFlag sha256 "llvm")
     49             [ llvm clang ];
     50 
     51         hpkgs = pkgs.haskell.packages.ghc910.extend (new: old: {
     52           ppad-base16 = base16-llvm;
     53           ppad-sha256 = sha256-llvm;
     54           ${lib} = new.callCabal2nixWithOptions lib ./. "--enable-profiling" {
     55             ppad-base16 = new.ppad-base16;
     56             ppad-sha256 = new.ppad-sha256;
     57           };
     58         });
     59 
     60         cc    = pkgs.stdenv.cc;
     61         ghc   = hpkgs.ghc;
     62         cabal = hpkgs.cabal-install;
     63       in
     64         {
     65           packages.default = hpkgs.${lib};
     66 
     67           devShells.default = hpkgs.shellFor {
     68             packages = p: [
     69               (hlib.doBenchmark p.${lib})
     70             ];
     71 
     72             buildInputs = [
     73               cabal
     74               cc
     75               llvm
     76             ];
     77 
     78             doBenchmark = true;
     79 
     80             shellHook = ''
     81               PS1="[${lib}] \w$ "
     82               echo "entering ${system} shell, using"
     83               echo "cc:    $(${cc}/bin/cc --version)"
     84               echo "ghc:   $(${ghc}/bin/ghc --version)"
     85               echo "cabal: $(${cabal}/bin/cabal --version)"
     86               echo "llc:   $(${llvm}/bin/llc --version | head -2 | tail -1)"
     87             '';
     88           };
     89         }
     90       );
     91 }
     92