bech32

Fast Haskell bech32, bech32m encoding/decoding (docs.ppad.tech/bech32).
git clone git://git.ppad.tech/bech32.git
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flake.nix (1644B)

      1 {
      2   description = "Pure Haskell bech32m and bech32 encoding/decoding.";
      3 
      4   inputs = {
      5     ppad-nixpkgs = {
      6       type = "git";
      7       url  = "git://git.ppad.tech/nixpkgs.git";
      8       ref  = "master";
      9     };
     10     flake-utils.follows = "ppad-nixpkgs/flake-utils";
     11     nixpkgs.follows = "ppad-nixpkgs/nixpkgs";
     12   };
     13 
     14   outputs = { self, nixpkgs, flake-utils, ppad-nixpkgs }:
     15     flake-utils.lib.eachDefaultSystem (system:
     16       let
     17         lib = "ppad-bech32";
     18 
     19         pkgs = import nixpkgs { inherit system; };
     20         hlib = pkgs.haskell.lib;
     21         llvm  = pkgs.llvmPackages_19.llvm;
     22         clang = pkgs.llvmPackages_19.clang;
     23 
     24         hpkgs = pkgs.haskell.packages.ghc910.extend (new: old: {
     25           ${lib} = old.callCabal2nixWithOptions lib ./. "--enable-profiling" {};
     26         });
     27 
     28         cc    = pkgs.stdenv.cc;
     29         ghc   = hpkgs.ghc;
     30         cabal = hpkgs.cabal-install;
     31       in
     32         {
     33           packages.default = hpkgs.${lib};
     34 
     35           devShells.default = hpkgs.shellFor {
     36             packages = p: [
     37               (hlib.doBenchmark p.${lib})
     38             ];
     39 
     40             buildInputs = [
     41               cabal
     42               cc
     43               llvm
     44               clang
     45             ];
     46 
     47             doBenchmark = true;
     48 
     49             shellHook = ''
     50               PS1="[${lib}] \w$ "
     51               echo "entering ${system} shell, using"
     52               echo "cc:    $(${cc}/bin/cc --version)"
     53               echo "ghc:   $(${ghc}/bin/ghc --version)"
     54               echo "cabal: $(${cabal}/bin/cabal --version)"
     55               echo "llc:   $(${llvm}/bin/llc --version | head -2 | tail -1)"
     56             '';
     57           };
     58         }
     59       );
     60 }
     61