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revert to build plans in top-level overview

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do not introduce build tasks yet, that is the next level of detail.
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Valentin Gagarin 2022-05-21 00:16:24 +02:00
parent 4639b36b53
commit 7c3bca1372
1 changed files with 4 additions and 4 deletions
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8
doc/manual/src/architecture/architecture.md
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@ -30,7 +30,9 @@ Nix consists of [hierarchical layers][layer-architecture].
At the top is the [command line interface](../command-ref/command-ref.md), translating from invocations of Nix executables to interactions with the underlying layers. At the top is the [command line interface](../command-ref/command-ref.md), translating from invocations of Nix executables to interactions with the underlying layers.
Below that is the [Nix expression language](../expressions/expression-language.md), a [purely functional][purely-functional-programming] configuration language. Below that is the [Nix expression language](../expressions/expression-language.md), a [purely functional][purely-functional-programming] configuration language.
It is used to compose expressions which ultimately evaluate to self-contained *build plans*, made up *build tasks* used to derive *build results* from referenced *build inputs*. It is used to compose expressions which ultimately evaluate to self-contained *build plans*, used to derive *build results* from referenced *build inputs*.
The command line and Nix language are what users interact with most.
::: {.note} ::: {.note}
The Nix language itself does not have a notion of *packages* or *configurations*. The Nix language itself does not have a notion of *packages* or *configurations*.
@ -38,10 +40,8 @@ As far as we are concerned here, the inputs and results of a derivation are just
In practice this amounts to a set of files in a file system. In practice this amounts to a set of files in a file system.
::: :::
The command line and Nix language are what users interact with most.
Underlying these is the [Nix store](./store/store.md), a mechanism to keep track of build plans, data, and references between them. Underlying these is the [Nix store](./store/store.md), a mechanism to keep track of build plans, data, and references between them.
It can also execute *build instructions*, captured in the build tasks, to produce new data. It can also execute build plans to produce new data.
[layer-architecture]: https://en.m.wikipedia.org/wiki/Multitier_architecture#Layers [layer-architecture]: https://en.m.wikipedia.org/wiki/Multitier_architecture#Layers
[purely-functional-programming]: https://en.m.wikipedia.org/wiki/Purely_functional_programming [purely-functional-programming]: https://en.m.wikipedia.org/wiki/Purely_functional_programming