I want to build the pavex-cli tool from Github. There’s no nix package and it lives in a workspace that’s in the libs subdir of this repo: GitHub - LukeMathWalker/pavex: An easy-to-use Rust framework for building robust and performant APIs
So far I have completely failed to do so. If I set the src to the libs dir, it fails because it expects the template dir from two levels above the $CARGO_MANIFEST_DIR to exist, and if I set the src to the base of the repo, I get a bunch of errors about purity.
Here’s what I have so far:
{
description = "Build Pavex tools";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
flake-utils.url = "github:numtide/flake-utils";
cargo-px-git = {
url = "github:/LukeMathWalker/cargo-px";
flake = false;
};
cargo-pavex-git = {
url = "github:LukeMathWalker/pavex";
flake = false;
};
rust-overlay = {
url = "github:oxalica/rust-overlay";
inputs = {
nixpkgs.follows = "nixpkgs";
flake-utils.follows = "flake-utils";
};
};
};
outputs = { self, nixpkgs, flake-utils, rust-overlay, ... } @inputs:
flake-utils.lib.eachDefaultSystem
(system:
let
pkgs = import nixpkgs {
inherit system;
overlays = [ (import rust-overlay) ];
};
inherit (pkgs) lib;
rustTarget = pkgs.rust-bin.selectLatestNightlyWith( toolchain: toolchain.default.override {
extensions = [ "rust-src" "rust-analyzer" "rustc-codegen-cranelift-preview" "rust-docs-json"];
targets = [ "wasm32-unknown-unknown" ];
});
cargo-pavex_cli-git = pkgs.rustPlatform.buildRustPackage rec {
pname = "cargo-pavex-cli";
version = "0.2.22";
#buildFeatures = ["no_downloads"]; # cargo-leptos will try to download Ruby and other things without this feature
src = inputs.cargo-pavex-git;
cargoLock = {
lockFile = src + "/libs/Cargo.lock";
outputHashes = {
"matchit-0.7.3" = "sha256-1bhbWvLlDb6/UJ4j2FqoG7j3DD1dTOLl6RaiY9kasmQ=";
#"pavex-0.1.0" = "sha256-NC7T1pcXJiWPtAWeiMUNzf2MUsYaRYxjLIL9fCqhExo=";
};
};
buildAndTestSubdir = "libs";
cargoSha256 = "";
nativeBuildInputs = [pkgs.pkg-config pkgs.openssl pkgs.git];
buildInputs = with pkgs;
[openssl pkg-config git]
++ lib.optionals stdenv.isDarwin [
Security
];
doCheck = false; # integration tests depend on changing cargo config
meta = with lib; {
description = "An easy-to-use Rust framework for building robust and performant APIs";
homepage = "https://github.com/LukeMatthewWalker/pavex";
changelog = "https://github.com/LukeMatthewWalker/pavex/blob/v${version}/CHANGELOG.md";
license = with licenses; [mit];
maintainers = with maintainers; [benwis];
};
};
cargo-px-git = pkgs.rustPlatform.buildRustPackage rec {
pname = "cargo-px";
version = "0.2.22";
#buildFeatures = ["no_downloads"]; # cargo-leptos will try to download Ruby and other things without this feature
src = inputs.cargo-px-git;
cargoSha256 ="sha256-+pyeqh0IoZ1JMgbhWxhEJw1MPgG7XeocVrqJoSNjgDA=";
nativeBuildInputs = [pkgs.pkg-config pkgs.openssl pkgs.git];
buildInputs = with pkgs;
[openssl pkg-config git]
++ lib.optionals stdenv.isDarwin [
Security
];
doCheck = false; # integration tests depend on changing cargo config
meta = with lib; {
description = "A cargo subcommand that extends cargo's capabilities when it comes to code generation.";
homepage = "https://github.com/LukeMatthewWalker/cargo-px";
changelog = "https://github.com/LukeMatthewWalker/cargo-px/blob/v${version}/CHANGELOG.md";
license = with licenses; [mit];
maintainers = with maintainers; [benwis];
};
};
in
{
devShells.default = pkgs.mkShell {
# Extra inputs can be added here
nativeBuildInputs = with pkgs; [
rustTarget
openssl
pkg-config
clang
tailwindcss
mold-wrapped
cargo-px-git
cargo-pavex_cli-git
];
RUST_SRC_PATH = "${rustTarget}/lib/rustlib/src/rust/library";
MOLD_PATH = "${pkgs.mold-wrapped}/bin/mold";
shellHook = ''
sed -i -e '/rustflags = \["-C", "link-arg=-fuse-ld=/ s|ld=.*|ld=${pkgs.mold-wrapped}/bin/mold"]|' .cargo/config.toml
'';
LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
};
});
}
I can’t even tell if there are more options to buildRustPackage because the source of it eludes me, and so far google has been unhelpful.
How can I make this work?