Merge pull request #73 from DamienCassou/add-binary-cache-doc

Add FAQ section "How do I add a binary cache?" to README
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Domen Kožar 2021-04-13 19:05:57 +02:00 committed by GitHub
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@ -78,7 +78,10 @@ To install Nix from any commit, go to [the corresponding installer_test action](
### How do I print nixpkgs version I have configured? ### How do I print nixpkgs version I have configured?
```nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'``` ```yaml
- name: Print nixpkgs version
run: nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'
```
### How can I run NixOS tests? ### How can I run NixOS tests?
@ -90,7 +93,6 @@ With the following inputs:
extra_nix_config: "system-features = nixos-test benchmark big-parallel kvm" extra_nix_config: "system-features = nixos-test benchmark big-parallel kvm"
``` ```
[Note that there's no hardware acceleration on GitHub Actions.](https://github.com/actions/virtual-environments/issues/183#issuecomment-610723516). [Note that there's no hardware acceleration on GitHub Actions.](https://github.com/actions/virtual-environments/issues/183#issuecomment-610723516).
### How can I install packages via nix-env from the specified `nix_path`? ### How can I install packages via nix-env from the specified `nix_path`?
@ -99,6 +101,31 @@ With the following inputs:
nix-env -i mypackage -f '<nixpkgs>' nix-env -i mypackage -f '<nixpkgs>'
``` ```
### How do I add a binary cache?
If the binary cache you want to add is hosted on [Cachix](https://cachix.org/) and you are
using [cachix-action](https://github.com/cachix/cachix-action), you
should use their `extraPullNames` input like this:
```yaml
- uses: cachix/cachix-action@vXX
with:
name: mycache
authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
extraPullNames: nix-community
```
Otherwise, you can add any binary cache to nix.conf using
install-nix-action's own `extra_nix_config` input:
```yaml
- uses: cachix/install-nix-action@vXX
with:
extra_nix_config: |
trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
substituters = https://hydra.iohk.io https://cache.nixos.org/
```
## Hacking ## Hacking
Install the dependencies Install the dependencies