Terms and Definitions in Nix Project: Difference between revisions
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If you come across a term or word you don't know, add it here. | If you come across a term or word you don't know, add it here. | ||
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|| (User) Profile | || (User) Profile | ||
|| Nix | || Nix | ||
|| Profiles simplify managing and switching between ''user environments'', and thus control which applications and system configurations are in active use. Generally, a ''profile'' is a link to a ''generation'', and the corresponding '''profiles''' folder collects a list of generations. A standalone Nix installation (i.e. on a Linux distro that is not NixOS) operates mainly on ''user'' profiles. In NixOS, there is also a ''system'' profile that manages system-wide configuration (e.g. ''/etc'', the kernel, ''initrd'', ''systemd''). Other tools like [[Home Manager]] also have their own profiles. By default, a user's active profile is stored at ''~/.nix-profile'': | || Profiles simplify managing and switching between ''user environments'', and thus control which applications and system configurations are in active use. Generally, a ''profile'' is a link to a ''generation'', and the corresponding '''profiles''' folder collects a list of generations. A standalone Nix installation (i.e. on a Linux distro that is not NixOS) operates mainly on ''user'' profiles. In NixOS, there is also a ''system'' profile that manages the system-wide configuration (e.g. ''/etc'', the kernel, ''initrd'', ''systemd''). Other tools like [[Home Manager]] may also have their own profiles. By default, a user's active profile is stored at ''~/.nix-profile'': | ||
<syntaxHighlight lang=shell> | <syntaxHighlight lang=shell> | ||
$ ls -l ~/.nix-profile | $ ls -l ~/.nix-profile | ||
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|| Derivation | || Derivation | ||
|| Nix | || Nix | ||
|| A Nix expression which describes a build action. Derivations are analogous to package definitions in other package managers. High-level derivations | || A Nix expression which describes a build action. Derivations are analogous to package definitions in other package managers. High-level derivations, such as the ones describing packages in [[Nixpkgs]], get evaluated into low-level derivations (called ''store derivations''), for instance by using the <code>nix-instantiate</code> command. <code>nix-store --realise</code> runs the build commands described in the low-level derivation, producing one or more ''output paths''. <code>nix-build</code> is a user-friendly wrapper for the previous two commands. | ||
|| [http://nixos.org/nix/manual/#gloss-derivation Nix Manual: Glossary - Derivation] <br> [http://nixos.org/nix/manual/#ssec-derivation Nix Manual: Derivation] | || [http://nixos.org/nix/manual/#gloss-derivation Nix Manual: Glossary - Derivation] <br> [http://nixos.org/nix/manual/#ssec-derivation Nix Manual: Derivation] | ||
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|| Nix expressions | || Nix expressions | ||
|| The <code>{ }</code> block contains "mutually recursive" attributes, which means they can refer to each other. | || The <code>{ }</code> block contains "mutually recursive" attributes, which means they can refer to each other. | ||
|| [ | || [https://nix.dev/manual/nix/2.24/language/syntax.html#recursive-sets Nix Manual: Syntax and semantics: Recursive sets] | ||
|-------- | |-------- | ||
|| <code>expression evaluator</code> | || <code>expression evaluator</code> | ||
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[[Category:Nix]] | |||