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doc/build-helpers: add note relating runCommand and runCommandWith

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nicoo 2024-08-08 16:48:57 +00:00
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18
doc/build-helpers/trivial-build-helpers.chapter.md
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@ -126,6 +126,24 @@ runCommand "my-example" {} ''
```
:::
::: {.note}
`runCommand name derivationArgs buildCommand` is equivalent to
```nix
runCommandWith {
inherit name derivationArgs;
stdenv = stdenvNoCC;
} buildCommand
```
Likewise, `runCommandCC name derivationArgs buildCommand` is equivalent to
```nix
runCommandWith {
inherit name derivationArgs;
} buildCommand
```
:::
## `runCommandLocal` {#trivial-builder-runCommandLocal}
Variant of `runCommand` that forces the derivation to be built locally, it is not substituted. This is intended for very cheap commands (<1s execution time). It saves on the network round-trip and can speed up a build.