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043135a848
In addition: - Take the opportunity to add a bunch more missing hyperlinks, too. - Remove some glossary entries that are now subsumed by dedicated pages. We used to not be able to do this without breaking link fragments, but now we can, so pick up where we left off. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
57 lines
1.5 KiB
Markdown
57 lines
1.5 KiB
Markdown
R""(
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# Examples
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* Show the [store derivation] that results from evaluating the Hello
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package:
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```console
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# nix derivation show nixpkgs#hello
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{
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"/nix/store/s6rn4jz1sin56rf4qj5b5v8jxjm32hlk-hello-2.10.drv": {
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…
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}
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}
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```
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* Show the full derivation graph (if available) that produced your
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NixOS system:
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```console
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# nix derivation show -r /run/current-system
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```
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* Print all files fetched using `fetchurl` by Firefox's dependency
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graph:
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```console
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# nix derivation show -r nixpkgs#firefox \
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| jq -r '.[] | select(.outputs.out.hash and .env.urls) | .env.urls' \
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| uniq | sort
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```
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Note that `.outputs.out.hash` selects *fixed-output derivations*
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(derivations that produce output with a specified content hash),
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while `.env.urls` selects derivations with a `urls` attribute.
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# Description
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This command prints on standard output a JSON representation of the
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[store derivation]s to which [*installables*](./nix.md#installables) evaluate.
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Store derivations are used internally by Nix. They are store paths with
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extension `.drv` that represent the build-time dependency graph to which
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a Nix expression evaluates.
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By default, this command only shows top-level derivations, but with
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`--recursive`, it also shows their dependencies.
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[store derivation]: @docroot@/glossary.md#gloss-store-derivation
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`nix derivation show` outputs a JSON map of [store path]s to derivations in the following format:
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[store path]: @docroot@/store/store-path.md
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{{#include ../../protocols/json/derivation.md}}
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)""
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