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# https://github.com/NixOS/templates/blob/master/go-hello/flake.nix
{
description = "r2wars";
# Nixpkgs / NixOS version to use.
inputs.nixpkgs.url = "nixpkgs/nixos-21.11";
outputs = { self, nixpkgs }:
let
# to work with older version of flakes
lastModifiedDate = self.lastModifiedDate or self.lastModified or "19700101";
# Generate a user-friendly version number.
version = builtins.substring 0 8 lastModifiedDate;
# System types to support.
supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
# Helper function to generate an attrset '{ x86_64-linux = f "x86_64-linux"; ... }'.
forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
# Nixpkgs instantiated for supported system types.
nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
in
{
# Provide some binary packages for selected system types.
packages = forAllSystems (system:
let
pkgs = nixpkgsFor.${system};
in
{
go-hello = pkgs.buildGoModule {
pname = "r2wars";
inherit version;
buildInputs = with pkgs; [ radare2 ];
# In 'nix develop', we don't need a copy of the source tree
# in the Nix store.
src = ./.;
# This hash locks the dependencies of this package. It is
# necessary because of how Go requires network access to resolve
# VCS. See https://www.tweag.io/blog/2021-03-04-gomod2nix/ for
# details. Normally one can build with a fake sha256 and rely on native Go
# mechanisms to tell you what the hash should be or determine what
# it should be "out-of-band" with other tooling (eg. gomod2nix).
# To begin with it is recommended to set this, but one must
# remeber to bump this hash when your dependencies change.
vendorSha256 = pkgs.lib.fakeSha256;
#vendorSha256 = "sha256-pQpattmS9VmO3ZIQUFn66az8GSmB4IvYhTTCFn6SUmo=";
};
});
# Add dependencies that are only needed for development
devShells = forAllSystems (system:
let
pkgs = nixpkgsFor.${system};
in
{
default = pkgs.mkShell {
buildInputs = with pkgs; [ go gopls gotools go-tools ];
};
});
# The default package for 'nix build'. This makes sense if the
# flake provides only one package or there is a clear "main"
# package.
defaultPackage = forAllSystems (system: self.packages.${system}.go-hello);
};
}
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