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build rule -> build task

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closer to "build systems a la carte", satisfies all other complaints
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Valentin Gagarin 2022-05-09 16:39:26 +02:00
parent 902638c519
commit 2a8532fb61
2 changed files with 8 additions and 8 deletions
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6
doc/manual/src/architecture/store/store.md
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@ -2,10 +2,10 @@
A Nix store is a collection of [store objects](objects.md) with associated operations.
These store objects can hold arbitrary data, and Nix makes no distinction if they are used as build inputs, build results, or build rules.
These store objects can hold arbitrary data, and Nix makes no distinction if they are used as build inputs, build results, or build tasks.
A Nix store allows adding, retrieving, and deleting store objects.
It can perform builds, that is, transform build inputs using instructions from the build rules into build outputs.
It can perform builds, that is, transform build inputs using instructions from the build tasks into build outputs.
It also keeps track of *references* between data and can therefore garbage-collect unused store objects.
There exist different types of stores, which all follow this model.
@ -28,7 +28,7 @@ generic build system | Nix | [Bazel](https://bazel.build/start/bazel-intro) | [B
-- | -- | -- | -- | --
data (build input, build result) | store object | [artifact](https://bazel.build/reference/glossary#artifact) | value | value
build instructions | builder | ([depends on action type](https://docs.bazel.build/versions/main/skylark/lib/actions.html)) | function | function
build rule | derivation | [action](https://bazel.build/reference/glossary#action) | `Task` | [thunk](https://en.m.wikipedia.org/wiki/Thunk)
build task | derivation | [action](https://bazel.build/reference/glossary#action) | `Task` | [thunk](https://en.m.wikipedia.org/wiki/Thunk)
build plan | derivation graph | [action graph](https://bazel.build/reference/glossary#action-graph), [build graph](https://bazel.build/reference/glossary#build-graph) | `Tasks` | [call graph](https://en.m.wikipedia.org/wiki/Call_graph)
build | build | build | application of `Build` | evaluation
persistence layer | store | [action cache](https://bazel.build/reference/glossary#action-cache) | `Store` | heap