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Document defining packages for a subset of systems

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Archit Gupta 2024-06-29 16:49:38 -07:00
parent 32bf894a50
commit f34d07dd57
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24
API_GUIDE.md
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@ -365,7 +365,9 @@ and have build checks in `checks.${system}`.
`package` can be set to a package definition, and will set `packages.default`.
`packages` can be set to attrs of package definitions.
`packages` can be set to attrs of package definitions. If it is a function, it
will additionally get a `system` arg in addition to module args, to allow
conditionally including package definitions depending on the system.
By default, the `packages.default` package's name (its attribute name in
the package set and overlay) is automatically determined from the derivation's
@ -451,6 +453,26 @@ To use the first example, but manually specify the package name:
}
```
To add a package only for certain systems, you can take `system` as an arg as
follows:
```nix
{
inputs.flakelight.url = "github:nix-community/flakelight";
outputs = { flakelight, ... }:
flakelight ./. {
packages = { system, ... }: if (system == "x86_64-linux") then {
pkg1 = { stdenv }:
stdenv.mkDerivation {
name = "pkg1";
src = ./.;
installPhase = "make DESTDIR=$out install";
};
} else { };
};
}
```
### devShell
```