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Merge pull request #12998 from fricklerhandwerk/packages

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glossary: refine the definition of "package"
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Robert Hensing 2025-04-11 00:14:23 +02:00 • committed by GitHub
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1
doc/manual/redirects.js
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@ -374,6 +374,7 @@ const redirects = {
},
"glossary.html": {
"gloss-local-store": "store/types/local-store.html",
"package-attribute-set": "#package",
"gloss-chroot-store": "store/types/local-store.html",
"gloss-content-addressed-derivation": "#gloss-content-addressing-derivation",
},

17
doc/manual/source/glossary.md
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@ -215,7 +215,7 @@
> **Example**
>
> Building and deploying software using Nix entails writing Nix expressions as a high-level description of packages and compositions thereof.
> Building and deploying software using Nix entails writing Nix expressions to describe [packages][package] and compositions thereof.
- [reference]{#gloss-reference}
@ -330,18 +330,17 @@
- [package]{#package}
1. A software package; a collection of files and other data.
A software package; files that belong together for a particular purpose, and metadata.
2. A [package attribute set].
Nix represents files as [file system objects][file system object], and how they belong together is encoded as [references][reference] between [store objects][store object] that contain these file system objects.
- [package attribute set]{#package-attribute-set}
The [Nix language] allows denoting packages in terms of [attribute sets](@docroot@/language/types.md#attribute-set) containing:
- attributes that refer to the files of a package, typically in the form of [derivation outputs](#output),
- attributes with metadata, such as information about how the package is supposed to be used.
An [attribute set](@docroot@/language/types.md#attribute-set) containing the attribute `type = "derivation";` (derivation for historical reasons), as well as other attributes, such as
- attributes that refer to the files of a [package], typically in the form of [derivation outputs](#output),
- attributes that declare something about how the package is supposed to be installed or used,
- other metadata or arbitrary attributes.
The exact shape of these attribute sets is up to convention.
[package attribute set]: #package-attribute-set
[package]: #package
- [string interpolation]{#gloss-string-interpolation}