Name

       nix flake show - show the outputs provided by a flake

Synopsis

       nix flake show [option…] flake-url

Examples

       • Show the output attributes provided by the patchelf flake:

       github:NixOS/patchelf/f34751b88bd07d7f44f5cd3200fb4122bf916c7e
       ├───checks
       │   ├───aarch64-linux
       │   │   └───build: derivation 'patchelf-0.12.20201207.f34751b'
       │   ├───i686-linux
       │   │   └───build: derivation 'patchelf-0.12.20201207.f34751b'
       │   └───x86_64-linux
       │       └───build: derivation 'patchelf-0.12.20201207.f34751b'
       ├───defaultPackage
       │   ├───aarch64-linux: package 'patchelf-0.12.20201207.f34751b'
       │   ├───i686-linux: package 'patchelf-0.12.20201207.f34751b'
       │   └───x86_64-linux: package 'patchelf-0.12.20201207.f34751b'
       ├───hydraJobs
       │   ├───build
       │   │   ├───aarch64-linux: derivation 'patchelf-0.12.20201207.f34751b'
       │   │   ├───i686-linux: derivation 'patchelf-0.12.20201207.f34751b'
       │   │   └───x86_64-linux: derivation 'patchelf-0.12.20201207.f34751b'
       │   ├───coverage: derivation 'patchelf-coverage-0.12.20201207.f34751b'
       │   ├───release: derivation 'patchelf-0.12.20201207.f34751b'
       │   └───tarball: derivation 'patchelf-tarball-0.12.20201207.f34751b'
       └───overlay: Nixpkgs overlay

Description

       This  command  shows  the  output  attributes  provided  by  the  flake specified by flake
       reference flake-url. These are the top-level attributes in the outputs of  the  flake,  as
       well as lower-level attributes for some standard outputs (e.g. packages or checks).

       With  --json,  the output is in a JSON representation suitable for automatic processing by
       other tools.

Options

       • --json
         Produce output in JSON format, suitable for consumption by another program.

       • --legacy
         Show the contents of the legacyPackages output.

       Common evaluation options:

       • --arg name expr
         Pass the value expr as the argument name to Nix functions.

       • --argstr name string
         Pass the string string as the argument name to Nix functions.

       • --eval-store store-url
         The Nix store to use for evaluations.

       • --impure
         Allow access to mutable paths and repositories.

       • --include / -I path
         Add path to the list of locations used to look up <...> file names.

       • --override-flake original-ref resolved-ref
         Override the flake registries, redirecting original-ref to resolved-ref.

       Common flake-related options:

       • --commit-lock-file
         Commit changes to the flake’s lock file.

       • --inputs-from flake-url
         Use the inputs of the specified flake as registry entries.

       • --no-registries
         Don’t allow lookups in the flake registries. This option is  deprecated;  use  --no-use-
         registries.

       • --no-update-lock-file
         Do not allow any updates to the flake’s lock file.

       • --no-write-lock-file
         Do not write the flake’s newly generated lock file.

       • --override-input input-path flake-url
         Override  a  specific  flake input (e.g. dwarffs/nixpkgs). This implies --no-write-lock-
         file.

       • --recreate-lock-file
         Recreate the flake’s lock file from scratch.

       • --update-input input-path
         Update a specific flake input (ignoring its previous entry in the lock file).

                                                                               nix3-flake-show(1)