Nix (package manager): Difference between revisions

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{{Disambiguation|message=<translate>This article is about the Nix package manager. Not to be confused with the [[<tvar name="1">Nix ecosystem</tvar>|Nix ecosystem]], the [[<tvar name="2">Nix (language)</tvar>|Nix language]] or the [[<tvar name="3">Nix (command)</tvar>|Nix command]].</translate>}}

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Nix is a package manager and build system that parses reproducible build instructions specified in the [[<tvar name="1">Nix (language)</tvar>|Nix Expression Language]], a pure functional language with lazy evaluation. Nix expressions are pure functions<ref>Values cannot change during computation. Functions always produce the same output if their input does not change.</ref> taking dependencies as arguments and producing a ''[[<tvar name="2">Derivations</tvar>|derivation]]'' specifying a reproducible build environment for the package. Nix stores the results of the build in unique addresses specified by a hash of the complete dependency tree, creating an immutable package store (aka the [[#Nix store|nix store]]) that allows for atomic upgrades, rollbacks and concurrent installation of different versions of a package, essentially eliminating [[<tvar name="3">Wikipedia:Dependency hell</tvar>|dependency hell]].

~~{{Navbox Nix}}~~

~~{{Disambiguation|message=This article is about the Nix package manager. Not to be confused with the [[Nix ecosystem]], the [[Nix (language)|Nix language]] or the [[Nix (command)|Nix command]].}}~~

Nix is a package manager and build system that parses reproducible build instructions specified in the [[Nix (language)|Nix Expression Language]], a pure functional language with lazy evaluation. Nix expressions are pure functions<ref>Values cannot change during computation. Functions always produce the same output if their input does not change. </ref>taking dependencies as arguments and producing a ''[[Derivations|derivation]]'' specifying a reproducible build environment for the package. Nix stores the results of the build in unique addresses specified by a hash of the complete dependency tree, creating an immutable package store (aka the [[#Nix store|nix store]]) that allows for atomic upgrades, rollbacks and concurrent installation of different versions of a package, essentially eliminating [[Wikipedia:Dependency hell|dependency hell]].

== Usage ==

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+{{Navbox Nix}}
+{{Disambiguation|message=<translate>This article is about the Nix package manager. Not to be confused with the [[<tvar name="1">Nix ecosystem</tvar>|Nix ecosystem]], the [[<tvar name="2">Nix (language)</tvar>|Nix language]] or the [[<tvar name="3">Nix (command)</tvar>|Nix command]].</translate>}}
 <translate>
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+Nix is a package manager and build system that parses reproducible build instructions specified in the [[<tvar name="1">Nix (language)</tvar>|Nix Expression Language]], a pure functional language with lazy evaluation. Nix expressions are pure functions<ref>Values cannot change during computation. Functions always produce the same output if their input does not change.</ref> taking dependencies as arguments and producing a ''[[<tvar name="2">Derivations</tvar>|derivation]]'' specifying a reproducible build environment for the package. Nix stores the results of the build in unique addresses specified by a hash of the complete dependency tree, creating an immutable package store (aka the [[#Nix store|nix store]]) that allows for atomic upgrades, rollbacks and concurrent installation of different versions of a package, essentially eliminating [[<tvar name="3">Wikipedia:Dependency hell</tvar>|dependency hell]].
-{{Navbox Nix}}
-{{Disambiguation|message=This article is about the Nix package manager. Not to be confused with the [[Nix ecosystem]], the [[Nix (language)|Nix language]] or the [[Nix (command)|Nix command]].}}
-Nix is a package manager and build system that parses reproducible build instructions specified in the [[Nix (language)|Nix Expression Language]], a pure functional language with lazy evaluation. Nix expressions are pure functions<ref>Values cannot change during computation. Functions always produce the same output if their input does not change. </ref>taking dependencies as arguments and producing a ''[[Derivations|derivation]]'' specifying a reproducible build environment for the package. Nix stores the results of the build in unique addresses specified by a hash of the complete dependency tree, creating an immutable package store (aka the [[#Nix store|nix store]]) that allows for atomic upgrades, rollbacks and concurrent installation of different versions of a package, essentially eliminating [[Wikipedia:Dependency hell|dependency hell]].
 == Usage == <!--T:2-->