16 lines
702 B
ReStructuredText
16 lines
702 B
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The Engine
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==========
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The engine is the core, reusable part of Dune. It contains all the composable
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primitives that make it a build system.
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The fact that it is split from the :doc:`rules part <rule-generation>` makes it
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possible to create a different build system using this library. For example,
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Jane Street internally uses a build system with this engine as a backend, but a
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different frontend and CLI.
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In the context of Dune, the engine keeps track of the various directories and
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the rules in them and is able to build files using them. In addition, it takes
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care of the various caches that Dune uses, such as the one present in the
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``_build`` directory, the :doc:`shared cache </caching>`, etc.
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