signv4 1.0.0

AWS Signature Version 4 implementation for Rust
Documentation 
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{
  description = "AWS Signature Version 4 library crate";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    crane.url = "github:ipetkov/crane";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
      crane,
      rust-overlay,
    }:
    flake-utils.lib.eachSystem [ "x86_64-linux" "aarch64-linux" ] (
      system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ rust-overlay.overlays.default ];
        };

        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
          extensions = [
            "rust-src"
            "rust-analyzer"
          ];
        };

        craneLib = (crane.mkLib pkgs).overrideToolchain rustToolchain;
        src = craneLib.cleanCargoSource ./.;
        cargoArtifacts = craneLib.buildDepsOnly { inherit src; };
      in
      {
        packages.default = craneLib.buildPackage {
          inherit src cargoArtifacts;
        };

        checks = {
          inherit (self.packages.${system}) default;

          clippy = craneLib.cargoClippy {
            inherit src cargoArtifacts;
            clippyExtraArgs = "--all-targets -- -D warnings";
          };

          fmt = craneLib.cargoFmt { inherit src; };

          test = craneLib.cargoTest { inherit src cargoArtifacts; };
        };

        devShells.default = craneLib.devShell {
          checks = self.checks.${system};
        };
      }
    );
}