nix-helpers: b830ce53eae56cc86e3d2caa963e67913df9bcf9

     1: {
     2:   die ? import ../die { },
     3:   nixpkgs-lib ? import ../nixpkgs-lib { },
     4: }:
     5: 
     6: with rec {
     7:   inherit (builtins)
     8:     attrNames
     9:     filter
    10:     listToAttrs
    11:     map
    12:     readDir
    13:     ;
    14: 
    15:   inherit (nixpkgs-lib) hasSuffix removeSuffix;
    16: 
    17:   go =
    18:     suffix: dir:
    19:     with {
    20:       content = filter (hasSuffix suffix) (attrNames (readDir dir));
    21: 
    22:       entry = f: {
    23:         name = removeSuffix suffix f;
    24:         value = dir + "/${f}";
    25:       };
    26:     };
    27:     listToAttrs (map entry content);
    28: 
    29:   testData = go ".nix" ./.;
    30:   thisFile = ./default.nix;
    31: };
    32: assert
    33:   testData ? default
    34:   || die {
    35:     inherit testData;
    36:     error = "Expected default to appear in testData";
    37:   };
    38: assert
    39:   testData.default == thisFile
    40:   || die {
    41:     inherit testData thisFile;
    42:     error = "Expected 'testData.default' to match 'thisFile'";
    43:   };
    44: assert
    45:   dirOf testData.default == ./.
    46:   || die {
    47:     inherit testData;
    48:     thisDir = ./.;
    49:     error = "Expected 'testData.default' to be a file under 'thisDir'";
    50:   };
    51: go