Nix Installer Action

You can use nix-installer as a Github action like so:

on:
  pull_request:
  push:
    branches: [main]

jobs:
  lints:
    name: Build
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v3
      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v2
      - name: Run `nix build`
        run: nix build .

See .github/workflows/ci.yml for a full example.

Configuration

Parameter	Description	Type	Default
backtrace	The setting for RUST_BACKTRACE	string
extra-args	Extra arguments to pass to the planner (prefer using structured with: arguments unless using a custom planner!)	string
extra-conf	Extra configuration lines for /etc/nix/nix.conf (includes access-tokens with secrets.GITHUB_TOKEN automatically if github-token is set)	string
github-token	A GitHub token for making authenticated requests (which have a higher rate-limit quota than unauthenticated requests)	string	${{ github.token }}
init	The init system to configure (requires planner: linux-multi)	enum (none or systemd)
local-root	A local nix-installer binary root. Overrides the nix-installer-url setting (a nix-installer.sh should exist, binaries should be named nix-installer-$ARCH, eg. nix-installer-x86_64-linux).	Boolean	false
log-directives	A list of tracing directives, comma separated with -s replaced with _ (eg. nix_installer=trace)	string
logger	The logger to use during installation	enum (pretty, json, full, compact)
mac-case-sensitive	Use a case-sensitive volume (planner: macos only)	Boolean	false
mac-encrypt	Force encryption on the volume (planner: macos only)	Boolean	false
mac-root-disk	The root disk of the target (planner: macos only)	string
mac-volume-label	The label for the created APFS volume (planner: macos only)	string
modify-profile	Modify the user profile to automatically load Nix	Boolean	false
nix-build-group-id	The Nix build group GID	integer
nix-build-group-name	The Nix build group name	string
nix-build-user-base	The Nix build user base UID (ascending)	integer
nix-build-user-count	The number of build users to create	integer	32
nix-build-user-prefix	The Nix build user prefix (user numbers will be postfixed)	string
nix-installer-branch	The branch of nix-installer to use (conflicts with the nix-installer-tag, nix-installer-revision, and nix-installer-branch)	string
nix-installer-pr	The pull request of nix-installer to use (conflicts with nix-installer-tag, nix-installer-revision, and nix-installer-branch)	integer
nix-installer-revision	The revision of nix-installer to use (conflicts with nix-installer-tag, nix-installer-branch, and nix-installer-pr)	string
nix-installer-tag	The tag of nix-installer to use (conflicts with nix-installer-revision, nix-installer-branch, nix-installer-pr)	string
nix-installer-url	A URL pointing to a nix-installer.sh script	URL	https://install.determinate.systems/nix
nix-package-url	The Nix package URL	URL
planner	The installation planner to use	enum (linux or macos)
reinstall	Force a reinstall if an existing installation is detected (consider backing up /nix/store)	Boolean	false
start-daemon	If the daemon should be started, requires planner: linux-multi	Boolean	false
trust-runner-user	Whether to make the runner user trusted by the Nix daemon	Boolean	true
diagnostic-endpoint	Diagnostic endpoint url where the installer sends install diagnostic reports to, to disable set this to an empty string	string	https://install.determinate.systems/nix/diagnostic
proxy	The proxy to use (if any), valid proxy bases are https://$URL, http://$URL and socks5://$URL	string
ssl-cert-file	An SSL cert to use (if any), used for fetching Nix and sets NIX_SSL_CERT_FILE for Nix	string