Nix command/show-derivation

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This article is about the nix show-derivation subcommand.

Description

Show the contents of a store derivation.

Usage

$ nix show-derivation FLAGS... INSTALLABLES...

Flags

  • --arg NAME EXPR argument to be passed to Nix functions
  • --argstr NAME STRING string-valued argument to be passed to Nix functions
  • --commit-lock-file commit changes to the lock file
  • --expr EXP evaluate attributes from EXPR
  • -f, --file FILE evaluate FILE rather than the default
  • --impure allow access to mutable paths and repositories
  • -I, --include PATH add a path to the list of locations used to look up <...> file names
  • --no-registries don't use flake registries
  • --no-update-lock-file do not allow any updates to the lock file
  • --no-write-lock-file do not write the newly generated lock file
  • --override-flake ORIGINAL-REF RESOLVED-REF override a flake registry value
  • --override-input INPUT-PATH FLAKE-URL override a specific flake input (e.g. 'dwarffs/nixpkgs')
  • --recreate-lock-file recreate lock file from scratch
  • -r, --recursive include the dependencies of the specified derivations
  • --update-input INPUT-PATH update a specific flake input

Examples

To show the store derivation that results from evaluating the Hello package:

$ nix show-derivation 'nixpkgs#hello'

To show the full derivation graph (if available) that produced your NixOS system:

$ nix show-derivation -r /run/current-system

See also