Distribution.Nixpkgs.Meta

A representation of the meta section used in Nix expressions. A detailed description can be found in section 4, "Meta-attributes", of the Nixpkgs manual at http://nixos.org/nixpkgs/docs.html.

Documentation

data Meta

A representation of the meta section used in Nix expressions.

>>> :set -XOverloadedStrings
>>> :{
  print (pPrint (Meta "http://example.org" "an example package" (Unknown Nothing)
                 (Set.singleton (Platform X86_64 Linux))
                 Set.empty
                 (Set.fromList ["joe","jane"])
                 True))
:}
homepage = "http://example.org";
description = "an example package";
license = "unknown";
platforms = [ "x86_64-linux" ];
hydraPlatforms = stdenv.lib.platforms.none;
maintainers = with stdenv.lib.maintainers; [ jane joe ];
broken = true;

Instances

Eq Meta

Methods

(==) :: Meta -> Meta -> Bool

(/=) :: Meta -> Meta -> Bool

Ord Meta

Methods

compare :: Meta -> Meta -> Ordering

(<) :: Meta -> Meta -> Bool

(<=) :: Meta -> Meta -> Bool

(>) :: Meta -> Meta -> Bool

(>=) :: Meta -> Meta -> Bool

max :: Meta -> Meta -> Meta

min :: Meta -> Meta -> Meta

Show Meta

Methods

showsPrec :: Int -> Meta -> ShowS

show :: Meta -> String

showList :: [Meta] -> ShowS

Generic Meta

Associated Types

type Rep Meta :: * -> *

Methods

from :: Meta -> Rep Meta x

to :: Rep Meta x -> Meta

NFData Meta

Methods

rnf :: Meta -> ()

Pretty Meta

Methods

pPrintPrec :: PrettyLevel -> Rational -> Meta -> Doc

pPrint :: Meta -> Doc

pPrintList :: PrettyLevel -> [Meta] -> Doc

type Rep Meta

type Rep Meta = D1 (MetaData "Meta" "Distribution.Nixpkgs.Meta" "distribution-nixpkgs-1.0.0.1-ZOe9yonFXCBXk0dLQyWil" False) (C1 (MetaCons "Meta" PrefixI True) ((:*:) ((:*:) (S1 (MetaSel (Just Symbol "_homepage") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 String)) ((:*:) (S1 (MetaSel (Just Symbol "_description") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 String)) (S1 (MetaSel (Just Symbol "_license") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 License)))) ((:*:) ((:*:) (S1 (MetaSel (Just Symbol "_platforms") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set Platform))) (S1 (MetaSel (Just Symbol "_hydraPlatforms") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set Platform)))) ((:*:) (S1 (MetaSel (Just Symbol "_maintainers") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Set Identifier))) (S1 (MetaSel (Just Symbol "_broken") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 Bool))))))

nullMeta :: Meta

homepage :: Lens' Meta String

description :: Lens' Meta String

license :: Lens' Meta License

platforms :: Lens' Meta (Set Platform)

hydraPlatforms :: Lens' Meta (Set Platform)

maintainers :: Lens' Meta (Set Identifier)

broken :: Lens' Meta Bool

allKnownPlatforms :: Set Platform