add a nix flake for pipes-rust

libraries/pipes/implementations/rust/README.md

@@ -68,9 +68,46 @@ defs = dg.Definitions(
 )
 ```
 
-
 ## Contributing
 
+### Prerequisites
+
+- [uv](https://docs.astral.sh/uv/)
+- [Rust](https://www.rust-lang.org/tools/install)
+
+For `nix` users, these dependencies can be installed with `nix develop`.
+
+### Installation
+
+1. Install the Python (Dagster) environment, mainly used for testing.
+
+```shell
+uv sync
+```
+
+This will automatically create a virtual environment in `.venv` and install all the Python dependencies.
+
+To use the environment, either activate it manually with `source ./.venv/bin/activate`, or use `uv run` to execute commands in the context of this environment.
+
+2. To build the Rust part of the project, use:
+```shell
+cargo build
+```
+
+### Testing
+
+The tests can be run with cargo:
+
+```shell
+cargo test
+```
+
+The integration tests are written in Python and can be run with `pytest`. The Rust project will be automatically built before running the tests.
+
+```shell
+uv run pytest
+```
+
 ### Pipes Schema
 
 We use [jsonschema](https://json-schema.org/) to define the pipes protocol and [quicktype](https://quicktype.io/) to generate the Rust structs. Currently, the json schemas live in `jsonschema/pipes` but they should be hosted/defined in a centralized repository in the future.

libraries/pipes/implementations/rust/flake.nix

@@ -0,0 +1,41 @@
+{
+  description = "Dagster Pipes Rust flake";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+      in
+      with pkgs;
+      {
+        devShells.default = mkShell {
+          buildInputs = [
+            git
+            openssl
+            uv
+            pkg-config
+            (
+              rust-bin.selectLatestNightlyWith (toolchain: toolchain.default.override {
+                extensions = [
+                  "rust-src"
+                  "rust-analyzer"
+                ];
+              })
+            )
+          ];
+          shellHook = ''
+            uv sync
+          '';
+        };
+      }
+    );
+}