67 lines
12 KiB
Markdown
67 lines
12 KiB
Markdown
# Nix Installer Action
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You can use [`nix-installer`](https://github.com/DeterminateSystems/nix-installer) as a Github action like so:
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```yaml
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on:
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pull_request:
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push:
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branches: [main]
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jobs:
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lints:
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name: Build
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runs-on: ubuntu-22.04
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steps:
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- uses: actions/checkout@v3
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- name: Install Nix
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uses: DeterminateSystems/nix-installer-action@v3
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- name: Run `nix build`
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run: nix build .
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```
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See [`.github/workflows/ci.yml`](.github/workflows/ci.yml) for a full example.
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## Configuration
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| Parameter | Description | Type | Default |
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| :----------------------- | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :----------------------------------------- | :--------------------------------------------------- |
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| `backtrace` | The setting for [`RUST_BACKTRACE`][backtrace] | string | |
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| `extra-args` | Extra arguments to pass to the planner (prefer using structured `with:` arguments unless using a custom [planner]!) | string | |
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| `extra-conf` | Extra configuration lines for `/etc/nix/nix.conf` (includes `access-tokens` with `secrets.GITHUB_TOKEN` automatically if `github-token` is set) | string | |
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| `github-token` | A [GitHub token] for making authenticated requests (which have a higher rate-limit quota than unauthenticated requests) | string | `${{ github.token }}` |
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| `init` | The init system to configure (requires `planner: linux-multi`) | enum (`none` or `systemd`) | |
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| `local-root` | A local `nix-installer` binary root. Overrides the `nix-installer-url` setting (a `nix-installer.sh` should exist, binaries should be named `nix-installer-$ARCH`, eg. `nix-installer-x86_64-linux`). | Boolean | `false` |
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| `log-directives` | A list of [tracing directives], comma separated with `-`s replaced with `_` (eg. `nix_installer=trace`) | string | |
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| `logger` | The logger to use during installation | enum (`pretty`, `json`, `full`, `compact`) | |
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| `mac-case-sensitive` | Use a case-sensitive volume (`planner: macos` only) | Boolean | `false` |
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| `mac-encrypt` | Force encryption on the volume (`planner: macos` only) | Boolean | `false` |
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| `mac-root-disk` | The root disk of the target (`planner: macos` only) | string | |
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| `mac-volume-label` | The label for the created [APFS] volume (`planner: macos` only) | string | |
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| `modify-profile` | Modify the user [profile] to automatically load Nix | Boolean | `false` |
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| `nix-build-group-id` | The Nix build group GID | integer | |
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| `nix-build-group-name` | The Nix build group name | string | |
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| `nix-build-user-base` | The Nix build user base UID (ascending) | integer | |
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| `nix-build-user-count` | The number of build users to create | integer | 32 |
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| `nix-build-user-prefix` | The Nix build user prefix (user numbers will be postfixed) | string | |
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| `nix-installer-branch` | The branch of `nix-installer` to use (conflicts with the `nix-installer-tag`, `nix-installer-revision`, and `nix-installer-branch`) | string | |
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| `nix-installer-pr` | The pull request of `nix-installer` to use (conflicts with `nix-installer-tag`, `nix-installer-revision`, and `nix-installer-branch`) | integer | |
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| `nix-installer-revision` | The revision of `nix-installer` to use (conflicts with `nix-installer-tag`, `nix-installer-branch`, and `nix-installer-pr`) | string | |
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| `nix-installer-tag` | The tag of `nix-installer` to use (conflicts with `nix-installer-revision`, `nix-installer-branch`, `nix-installer-pr`) | string | |
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| `nix-installer-url` | A URL pointing to a `nix-installer.sh` script | URL | `https://install.determinate.systems/nix` |
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| `nix-package-url` | The Nix package URL | URL | |
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| `planner` | The installation [planner] to use | enum (`linux` or `macos`) | |
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| `reinstall` | Force a reinstall if an existing installation is detected (consider backing up `/nix/store`) | Boolean | `false` |
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| `start-daemon` | If the daemon should be started, requires `planner: linux-multi` | Boolean | `false` |
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| `trust-runner-user` | Whether to make the runner user trusted by the Nix daemon | Boolean | `true` |
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| `diagnostic-endpoint` | Diagnostic endpoint url where the installer sends install [diagnostic reports](https://github.com/DeterminateSystems/nix-installer#diagnostics) to, to disable set this to an empty string | string | `https://install.determinate.systems/nix/diagnostic` |
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| `proxy` | The proxy to use (if any), valid proxy bases are `https://$URL`, `http://$URL` and `socks5://$URL` | string | |
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| `ssl-cert-file` | An SSL cert to use (if any), used for fetching Nix and sets `NIX_SSL_CERT_FILE` for Nix | string | |
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[apfs]: https://en.wikipedia.org/wiki/Apple_File_System
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[backtrace]: https://doc.rust-lang.org/std/backtrace/index.html#environment-variables
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[github token]: https://docs.github.com/en/actions/security-guides/automatic-token-authentication
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[planner]: https://github.com/determinateSystems/nix-installer#usage
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[profile]: https://nixos.org/manual/nix/stable/package-management/profiles
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[tracing directives]: https://docs.rs/tracing-subscriber/latest/tracing_subscriber/filter/struct.EnvFilter.html#directives
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