A fork of the Determinate Nix installer.
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Ana Hobden dad8180985
Allow expected errors (#116)
* Move binary out of /nix if it is there during uninstall

* Add tracing

* Sorta working...

* Have expected() return an err

* Better handle expected errors during install

* Hello trailing whitespace
2022-12-12 12:20:50 -08:00
.buildkite Add buildkite job for harmonic (#78) 2022-12-02 06:57:55 -08:00
.cargo Use process groups with tokio (also crate bump) (#63) 2022-11-25 08:02:00 -08:00
.github Curl on ci (#110) 2022-12-12 09:27:43 -08:00
nix Nix flake checks now do ci-checks (#88) 2022-12-05 10:27:12 -08:00
src Allow expected errors (#116) 2022-12-12 12:20:50 -08:00
tests fish support (#76) 2022-12-07 08:22:24 -08:00
.envrc init 2022-09-02 16:04:02 -07:00
.gitignore Use process groups with tokio (also crate bump) (#63) 2022-11-25 08:02:00 -08:00
Cargo.lock Tidy UX, make --logger param (#108) 2022-12-09 11:15:54 -08:00
Cargo.toml Tidy UX, make --logger param (#108) 2022-12-09 11:15:54 -08:00
CODE_OF_CONDUCT.md Add some community files 2022-09-09 14:27:03 -07:00
CONTRIBUTING.md Tidy the CONTRIBUTING.md doc (#87) 2022-12-02 21:20:48 +00:00
flake.lock Update deps (#104) 2022-12-09 08:17:35 -08:00
flake.nix Include install-nix.sh in artifacts (#115) 2022-12-12 10:59:45 -08:00
LICENSE Add some community files 2022-09-09 14:27:03 -07:00
nix-install.sh Curl on ci (#110) 2022-12-12 09:27:43 -08:00
README.md Fixup Mac curl $URL | sudo sh -s (#99) 2022-12-08 08:04:49 -08:00
rust-toolchain.toml We didn't need openssl anyways (#111) 2022-12-12 08:18:29 -08:00
rustfmt.toml Create all actions 2022-09-15 12:11:46 -07:00

Harmonic

Harmonic is pre-release and experimental. Don't run it on machines you care about.

Harmonic is an opinionated, experimental Nix installer.

Try it on a machine/VM you don't care about!

curl -L https://install.determinate.systems/nix | sh -s -- install

Status

Harmonic is pre-release and experimental. It is not ready for you to use! Please don't use it on a machine you are not planning to obliterate!

Planned support:

  • Multi-user x86_64 Linux with systemd init
  • Multi-user aarch64 Linux with systemd init
  • Multi-user x86_64 MacOS
    • Note: User deletion is currently unimplemented, you need to use a user with a secure token and dscl . -delete /Users/_nixbuild* where * is each user number.
  • Multi-user aarch64 MacOS
    • Note: User deletion is currently unimplemented, you need to use a user with a secure token and dscl . -delete /Users/_nixbuild* where * is each user number.
  • Valve Steam Deck
  • Single-user x86_64 Linux with systemd init
  • Single-user aarch64 Linux with systemd init
  • Others...

Installation Differences

Differing from the current official Nix installer scripts:

  • Nix is installed with the nix-command and flakes features enabled in the nix.conf
  • Harmonic stores an installation receipt (for uninstalling) at /nix/receipt.json

Motivations

The current Nix installer scripts do an excellent job, however they are difficult to maintain. Subtle differences in the shell implementations, and certain characteristics of bash scripts make it difficult to make meaningful changes to the installer.

Our team wishes to experiment with the idea of an installer in a more structured language and see if this is a worthwhile alternative. Along the way, we are also exploring a few other ideas, such as:

  • offering users a chance to review an accurate, calculated install plan
  • keeping an installation receipt for uninstallation
  • offering users with a failing install the chance to revert
  • doing whatever tasks we can in parallel

So far, our explorations have been quite fruitful, so we wanted to share and keep exploring.

Building

Harmonic is pre-release and we do not provide binaries at this time.

Since you'll be using Harmonic to install Nix on systems without Nix, the default build is a static binary.

Build it on a system with Nix:

nix build github:determinatesystems/harmonic

Then copy the result/bin/harmonic to the machine you wish to run it on.

Running

Harmonic must be run as root, as it needs to alter the system and cannot elevate privileges without significant complexity.

Install Nix with default options:

# Linux
./harmonic install linux-multi

# Mac
./harmonic install darwin-multi

To observe verbose logging, either use harmonic -v, this tool also respects the RUST_LOG environment. (Eg RUST_LOG=harmonic=trace harmonic).

Harmonic supports many of the options the current official Nix installer scripts. Review harmonic --help for details.

Uninstalling

You can remove a Harmonic-installed Nix by running

./harmonic uninstall

If you're on Mac and trying to run this over SSH, ensure you enable root by running dsenableroot, running the uninstall, then running dsenableroot -d to disable root again.