wiki/_next/data/Ie9t5zutrXP6Of75Cb5xF/tools.nix.derivations.json

{"pageProps":{"metadata":{"date":"2021-07-18 23:16:39 +08:00","date_modified":"2021-12-28 00:16:07 +08:00","language":"en","source":""},"title":"Nix derivations","hast":{"type":"root","children":[{"type":"element","tagName":"nav","properties":{"className":"toc"},"children":[{"type":"element","tagName":"ol","properties":{"className":"toc-level toc-level-1"},"children":[]}]},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Derivations are recipes for the Nix build daemon how to build the package.\nAt a glance, this is the equivalent to manifests from "},{"type":"element","tagName":"a","properties":{"href":"/packages.flatpak"},"children":[{"type":"text","value":"Flatpak packages"}]},{"type":"text","value":" or Guix packages.\n"}]},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The following code block shows what a derivation looks like.\n"}]},{"type":"element","tagName":"pre","properties":{"className":["src-block"]},"children":[{"type":"element","tagName":"code","properties":{"className":["language-bash"]},"children":[{"type":"text","value":"nix show-derivation nixpkgs#hello\n"}]}]},{"type":"element","tagName":"div","properties":{"className":["exampe"]},"children":[{"type":"text","value":"{\n  \"/nix/store/vvb4wxmnjixmrkhmj2xb75z62hrr41i7-hello-2.10.drv\": {\n    \"outputs\": {\n      \"out\": {\n        \"path\": \"/nix/store/xcp9cav49dmsjbwdjlmkjxj10gkpx553-hello-2.10\"\n      }\n    },\n    \"inputSrcs\": [\n      \"/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh\"\n    ],\n    \"inputDrvs\": {\n      \"/nix/store/127p1886lb1q7x02wyy77ib9ghhc324v-hello-2.10.tar.gz.drv\": [\n        \"out\"\n      ],\n      \"/nix/store/4lzwc3wzbqjq973psxkph8jjq4g6cssr-stdenv-linux.drv\": [\n        \"out\"\n      ],\n      \"/nix/store/js6ib8zv84knb7kwnjdrqgwf86djjblk-bash-5.1-p12.drv\": [\n        \"out\"\n      ]\n    },\n    \"system\": \"x86_64-linux\",\n    \"builder\": \"/nix/store/a54wrar1jym1d8yvlijq0l2gghmy8szz-bash-5.1-p12/bin/bash\",\n    \"args\": [\n      \"-e\",\n      \"/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh\"\n    ],\n    \"env\": {\n      \"buildInputs\": \"\",\n      \"builder\": \"/nix/store/a54wrar1jym1d8yvlijq0l2gghmy8szz-bash-5.1-p12/bin/bash\",\n      \"configureFlags\": \"\",\n      \"depsBuildBuild\": \"\",\n      \"depsBuildBuildPropagated\": \"\",\n      \"depsBuildTarget\": \"\",\n      \"depsBuildTargetPropagated\": \"\",\n      \"depsHostHost\": \"\",\n      \"depsHostHostPropagated\": \"\",\n      \"depsTargetTarget\": \"\",\n      \"depsTargetTargetPropagated\": \"\",\n      \"doCheck\": \"1\",\n      \"doInstallCheck\": \"\",\n      \"name\": \"hello-2.10\",\n      \"nativeBuildInputs\": \"\",\n      \"out\": \"/nix/store/xcp9cav49dmsjbwdjlmkjxj10gkpx553-hello-2.10\",\n      \"outputs\": \"out\",\n      \"patches\": \"\",\n      \"pname\": \"hello\",\n      \"propagatedBuildInputs\": \"\",\n      \"propagatedNativeBuildInputs\": \"\",\n      \"src\": \"/nix/store/3x7dwzq014bblazs7kq20p9hyzz0qh8g-hello-2.10.tar.gz\",\n      \"stdenv\": \"/nix/store/xcmlbsqabmckx42p8w18ri5zq8v2iiav-stdenv-linux\",\n      \"strictDeps\": \"\",\n      \"system\": \"x86_64-linux\",\n      \"version\": \"2.10\"\n    }\n  }\n}\n"}]},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"While we can create derivations with the "},{"type":"element","tagName":"code","properties":{"className":["inline-verbatim"]},"children":[{"type":"text","value":"derivations"}]},{"type":"text","value":" builtin from the "},{"type":"element","tagName":"a","properties":{"href":"/lang.nix"},"children":[{"type":"text","value":"Nix language"}]},{"type":"text","value":", in practice you'll use "},{"type":"element","tagName":"code","properties":{"className":["inline-verbatim"]},"children":[{"type":"text","value":"stdenv.mkDerivation"}]},{"type":"text","value":" from nixpkgs standard library.\n"}]},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"element","tagName":"li","properties":{},"children