haskell-te: 93a39956f75aed4509779867c95934a54bcbe194

     1: { cabal2nix, lib, runCommand }:
     2: 
     3: with builtins;
     4: with lib;
     5: dir:
     6:   assert typeOf dir == "path" || isString dir || isDerivation dir ||
     7:          abort "nixedHsPkg: dir should be str|path|drv, given '${typeOf dir}'";
     8:   runCommand "nixedHsPkg"
     9:     {
    10:       inherit dir;
    11:       buildInputs = [ cabal2nix ];
    12:     }
    13:     ''
    14:       echo "Source is '$dir'" 1>&2
    15:       target=$(readlink -f "$dir")
    16:       cp -r "$target" ./source
    17:       pushd ./source > /dev/null
    18:         echo "Setting permissions" 1>&2
    19:         chmod +w . -R # We need this if dir has come from the Nix store
    20:         echo "Cleaning up unnecessary files" 1>&2
    21:         rm -rf ".git" || true
    22: 
    23:         echo "Creating 'default.nix'" 1>&2
    24:         touch default.nix
    25:         chmod +w default.nix
    26: 
    27:         echo "Generating package definition" 1>&2
    28:         cabal2nix ./. > default.nix
    29:         echo "Finished generating" 1>&2
    30:       popd > /dev/null
    31:       cp -r ./source "$out"
    32:     ''