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flake.nix
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flake.nix
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{
description = "orb-messages flake";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
# Provides eachDefaultSystem and other utility functions
utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, utils }:
# This helper function is used to more easily abstract
# over the host platform.
# See https://github.com/numtide/flake-utils#eachdefaultsystem--system---attrs
utils.lib.eachDefaultSystem (system:
let
p = {
# The platform that you are running nix on and building from
native = nixpkgs.legacyPackages.${system};
};
in
{
# Everything in here becomes your shell (nix develop)
devShells.default = p.native.mkShell {
# Nix makes the following list of dependencies available to the development
# environment.
buildInputs = (with p.native; [
# Needed for cargo zigbuild
zig
cargo-zigbuild
# Used by various rust build scripts to find system libs
# Note that this is the unwrapped version of pkg-config. By default,
# nix wraps pkg-config with a script that replaces the PKG_CONFIG_PATH
# with the proper settings for cross compilation. We already set these
# env variables ourselves and don't want nix overwriting them, so we
# use the unwrapped version.
pkg-config-unwrapped
# Developer tools
clang-tools
cargo-binutils
cargo-deny
cargo-expand
nixpkgs-fmt
pre-commit
protobuf
# This is missing on mac m1 nix, for some reason.
# see https://stackoverflow.com/a/69732679
libiconv
]);
# The following sets up environment variables for the shell. These are used
# by the build.rs build scripts of the rust crates.
shellHook = ''
# Env vars here
'';
};
# Lets you type `nix fmt` to format the flake.
formatter = p.native.nixpkgs-fmt;
}
);
}