(briefly) document how to build ca derivations

NixOS · Apr 23, 2021 · 2207018 · 2207018
1 parent d9864be
commit 2207018
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/doc/manual/src/expressions/advanced-attributes.md b/doc/manual/src/expressions/advanced-attributes.md
@@ -207,6 +207,14 @@ Derivations can declare some infrequently used optional attributes.
     the hash in either hexadecimal or base-32 notation. (See the
     [`nix-hash` command](../command-ref/nix-hash.md) for information
     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`  
     A list of names of attributes that should be passed via files rather