33 lines
1.0 KiB
Plaintext
33 lines
1.0 KiB
Plaintext
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title: Artifact
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---
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summary: Represents an artifact during the build process.
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---
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type: class
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---
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body:
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During the build process Lektor creates artifact objects to represent final
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build artifacts. Generally each [Source Object :ref](../../db/obj/) will
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generate one artifact for which it acts as a primary source.
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There are however many cases in which a source object will create
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sub-artifacts. For instance any thumbnail created in the context of a page
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will be creating its own artifact. To give plugins the same ability the
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artifact system is partially documented. See also [sub_artifact
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:ref](../context/sub-artifact/) to see how to create your own artifact
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instances.
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The most important function of an artifact is [open :ref](open/) which can
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open the artifact for reading or writing. If the build goes well, Lektor
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will commit those changes and persist them.
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## Example
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```python
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ctx = get_ctx()
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@ctx.sub_artifact('artifact.txt')
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def build_stylesheet(artifact):
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with artifact.open('w') as f:
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f.write('Hello World!\n')
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```
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