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(briefly) document how to build ca derivations

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regnat 2021-04-23 10:28:26 +02:00
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doc/manual/src/expressions/advanced-attributes.md
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@ -208,6 +208,14 @@ Derivations can declare some infrequently used optional attributes.
[`nix-hash` command](../command-ref/nix-hash.md) for information [`nix-hash` command](../command-ref/nix-hash.md) for information
about converting to and from base-32 notation.) about converting to and from base-32 notation.)
- `__contentAddressed`
If this **experimental** attribute is set to true, then the derivation
outputs will be stored in a content-addressed location rather than the
traditional input-addressed one.
This only has an effect if the `ca-derivation` experimental feature is enabled.
Setting this attribute also requires setting `outputHashMode` and `outputHashAlgo` like for *fixed-output derivations* (see above).
- `passAsFile` - `passAsFile`
A list of names of attributes that should be passed via files rather A list of names of attributes that should be passed via files rather
than environment variables. For example, if you have than environment variables. For example, if you have