sdk-ng VS nixpkgs

# Basic configuration for Zephyr development. { pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/refs/tags/23.05.tar.gz") { } }: let pp = pkgs.python3.pkgs; imgtool = pp.buildPythonPackage rec { version = "1.10.0"; pname = "imgtool"; src = pp.fetchPypi { inherit pname version; sha256 = "sha256-A7NOdZNKw9lufEK2vK8Rzq9PRT98bybBfXJr0YMQS0A="; }; propagatedBuildInputs = with pp; [ cbor2 click intelhex cryptography ]; doCheck = false; pythonImportsCheck = [ "imgtool" ]; }; python-packages = pkgs.python3.withPackages (p: with p; [ autopep8 pyelftools pyyaml pykwalify canopen packaging progress psutil anytree intelhex west imgtool cryptography intelhex click cbor2 # For mcuboot CI toml # For twister tabulate ply # For TFM pyasn1 graphviz jinja2 requests beautifulsoup4 # These are here because pip stupidly keeps trying to install # these in /nix/store. wcwidth sortedcontainers ]); # Build the Zephyr SDK as a nix package. new-zephyr-sdk-pkg = { stdenv , fetchurl , which , python38 , wget , file , cmake , libusb , autoPatchelfHook }: let version = "0.15.0"; arch = "arm"; sdk = fetchurl { url = "https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v${version}/zephyr-sdk-${version}_linux-x86_64_minimal.tar.gz"; hash = "sha256-dn+7HVBtvDs2EyXSLMb12Q+Q26+x6HYyPP69QdLKka8="; }; armToolchain = fetchurl { url = "https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v${version}/toolchain_linux-x86_64_arm-zephyr-eabi.tar.gz"; hash = "sha256-B7YIZEyuqE+XNI7IWnN6WiC1k9UdFEt4YN4Yr7Vn3Po="; }; in stdenv.mkDerivation { name = "zephyr-sdk"; inherit version; srcs = [ sdk armToolchain ]; srcRoot = "."; nativeBuildInputs = [ which wget file python38 autoPatchelfHook cmake libusb ]; phases = [ "installPhase" "fixupPhase" ]; installPhase = '' runHook preInstall echo out=$out mkdir -p $out set $srcs tar -xf $1 -C $out --strip-components=1 tar -xf $2 -C $out (cd $out; bash ./setup.sh -h) rm $out/zephyr-sdk-x86_64-hosttools-standalone-0.9.sh runHook postInstall ''; }; zephyr-sdk = pkgs.callPackage new-zephyr-sdk-pkg { }; packages = with pkgs; [ # Tools for building the languages we are using llvmPackages_16.clang-unwrapped # Newer than base clang gnat zig zls rustup glibc_multi # Dependencies of the Zephyr build system. (python-packages) cmake ninja gperf python3 ccache dtc gmp.dev zephyr-sdk ]; in pkgs.mkShell { nativeBuildInputs = packages; # For Zephyr work, we need to initialize some environment variables, # and then invoke the zephyr setup script. shellHook = '' export ZEPHYR_SDK_INSTALL_DIR=${zephyr-sdk} export PATH=$PATH:${zephyr-sdk}/arm-zephyr-eabi/bin export VIA_WORKSPACE_PATH="$(realpath ./workspace/)" source ./workspace/zephyr/zephyr-env.sh ''; }

I just get the cross compile tools from ARM : https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads ... or zephyr : https://github.com/zephyrproject-rtos/sdk-ng/releases

There are free gcc based cross tools (compilers, debuggers, emulators) for a lot of MCUs (ARM, MIPS, riscv, etc).

Eg: Zephyr OS can use the https://github.com/zephyrproject-rtos/sdk-ng toolchain, which is built for arm, riscv, mips targets.

I don't think so. The article is probably intended for the Nix community, so the author doesn't need to convince HN that something is going on. If as an outsider you are interested then you need to look into it yourself, the community has no obligation to make their internal conflicts legible to the outside world.

As an outsider myself, it certainly looks like something is going on as more than 20 Nixpkg maintainers left in a week: https://github.com/NixOS/nixpkgs/issues?q=label%3A%228.has%3...

https://github.com/NixOS/nixpkgs/commits?author=neon-sunset

I see two signers in the top 6 displayed on https://github.com/NixOS/nixpkgs/graphs/contributors

For a single file script, nix can make the package management quite easy: https://github.com/NixOS/nixpkgs/blob/master/doc/languages-f...

For example,

```

Yes, Nix doesn't actually ensure that the builds are deterministic. In fact it works just fine if they aren't. There are packages in nixpkgs that aren't reproducible: https://github.com/NixOS/nixpkgs/issues?q=is%3Aopen+is%3Aiss...

I'm not familiar with Bazel, but Nix in it's current form wouldn't have solved this attack. First of all, the standard mkDerivation function calls the same configure; make; make install process that made this attack possible. Nixpkgs regularly pulls in external resources (fetchUrl and friends) that are equally vulnerable to a poisoned release tarball. Checkout the comment on the current xz entry in nixpkgs https://github.com/NixOS/nixpkgs/blob/master/pkgs/tools/comp...

NixOS uses a monorepo and I think everyone's love it.

I love being able to easily grep through all the packages source code and there's regularly PRs that harmonizes conventions across many packages.

Nixpkgs doesn't include the packaged software source code, so it's a lot more practical than what Debian is doing.

https://github.com/NixOS/nixpkgs

In this specific case, nix uses fetchFromGitHub to download the source archive, which are generated by GitHub for the specified revision[1]. Arch seems to just download the tarball from the releases page[2].

[1]: https://github.com/NixOS/nixpkgs/blob/3c2fdd0a4e6396fc310a6e...

[2]: https://gitlab.archlinux.org/archlinux/packaging/packages/ib...