max/nix-super
1
0
Fork 0
mirror of https://github.com/privatevoid-net/nix-super.git synced 2024-11-21 21:46:15 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

mention the actual meaning of FODs in the glossary (#10888)

Browse source 
* mention the actual meaning of FODs in the glossary

Co-authored-by: Alex Groleau <source@proof.construction>
Co-authored-by: Daniel Baker <daniel.n.baker@gmail.com>
Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
This commit is contained in:
Valentin Gagarin 2024-06-10 20:50:35 +02:00 committed by GitHub
parent e943ee32bd
commit d1dd7abbf0
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
2 changed files with 10 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
doc/manual/src/glossary.md
View file

@ -71,10 +71,9 @@
[`__contentAddressed`](./language/advanced-attributes.md#adv-attr-__contentAddressed)
attribute set to `true`.
- [fixed-output derivation]{#gloss-fixed-output-derivation}
- [fixed-output derivation]{#gloss-fixed-output-derivation} (FOD)
A derivation which includes the
[`outputHash`](./language/advanced-attributes.md#adv-attr-outputHash) attribute.
A [derivation] where a cryptographic hash of the [output] is determined in advance using the [`outputHash`](./language/advanced-attributes.md#adv-attr-outputHash) attribute, and where the [`builder`](@docroot@/language/derivations.md#attr-builder) executable has access to the network.
- [store]{#gloss-store}

15
doc/manual/src/language/advanced-attributes.md
View file

@ -120,12 +120,11 @@ Derivations can declare some infrequently used optional attributes.
configuration setting.
- [`outputHash`]{#adv-attr-outputHash}; [`outputHashAlgo`]{#adv-attr-outputHashAlgo}; [`outputHashMode`]{#adv-attr-outputHashMode}\
These attributes declare that the derivation is a so-called
*fixed-output derivation*, which means that a cryptographic hash of
the output is already known in advance. When the build of a
fixed-output derivation finishes, Nix computes the cryptographic
hash of the output and compares it to the hash declared with these
attributes. If there is a mismatch, the build fails.
These attributes declare that the derivation is a so-called *fixed-output derivation* (FOD), which means that a cryptographic hash of the output is already known in advance.
As opposed to regular derivations, the [`builder`] executable of a fixed-output derivation has access to the network.
Nix computes a cryptographic hash of its output and compares that to the hash declared with these attributes.
If there is a mismatch, the derivation fails.
The rationale for fixed-output derivations is derivations such as
those produced by the `fetchurl` function. This function downloads a
@ -279,7 +278,9 @@ Derivations can declare some infrequently used optional attributes.
> **Note**
>
> If set to `false`, the [`builder`](./derivations.md#attr-builder) should be able to run on the system type specified in the [`system` attribute](./derivations.md#attr-system), since the derivation cannot be substituted.
> If set to `false`, the [`builder`] should be able to run on the system type specified in the [`system` attribute](./derivations.md#attr-system), since the derivation cannot be substituted.
[`builder`]: ./derivations.md#attr-builder
- [`__structuredAttrs`]{#adv-attr-structuredAttrs}\
If the special attribute `__structuredAttrs` is set to `true`, the other derivation