From 787470c66a23d1bb9c18b6ce7e410267dcb27d5d Mon Sep 17 00:00:00 2001
From: Jonni Liljamo <jonni@liljamo.com>
Date: Mon, 18 Nov 2024 19:52:26 +0200
Subject: [PATCH] feat: rust crate

---
 .cargo/config.toml            |    3 +
 .gitignore                    |    1 +
 Cargo.lock                    | 1136 +++++++++++++++++++++++++++++++++
 Cargo.toml                    |   11 +
 flake.lock                    |   23 +-
 flake.nix                     |   38 ++
 justfile                      |    5 +-
 rust-toolchain.toml           |    2 +
 rust/emerwen-proto/Cargo.toml |   17 +
 rust/emerwen-proto/build.rs   |   28 +
 rust/emerwen-proto/src/lib.rs |   22 +
 11 files changed, 1284 insertions(+), 2 deletions(-)
 create mode 100644 .cargo/config.toml
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 rust-toolchain.toml
 create mode 100644 rust/emerwen-proto/Cargo.toml
 create mode 100644 rust/emerwen-proto/build.rs
 create mode 100644 rust/emerwen-proto/src/lib.rs

diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..d29d6c3
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,3 @@
+[target.x86_64-unknown-linux-gnu]
+linker = "clang"
+rustflags = ["-C", "link-arg=-fuse-ld=mold"]
diff --git a/.gitignore b/.gitignore
index 5abd366..510e15c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /.direnv/
+/target/
 
 /.pre-commit-config.yaml
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..c0ccce8
--- /dev/null
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..747e573
--- /dev/null
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diff --git a/flake.lock b/flake.lock
index 522a28f..2db3c6c 100644
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-        "pre-commit-hooks": "pre-commit-hooks"
+        "pre-commit-hooks": "pre-commit-hooks",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1731897198,
+        "narHash": "sha256-Ou7vLETSKwmE/HRQz4cImXXJBr/k9gp4J4z/PF8LzTE=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "0be641045af6d8666c11c2c40e45ffc9667839b5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 5b76f5e..22c5d63 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,6 +10,11 @@
       url = "github:cachix/git-hooks.nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs = inputs @ {
@@ -17,6 +22,7 @@
     nixpkgs,
     flake-parts,
     pre-commit-hooks,
+    rust-overlay,
     ...
   }:
     flake-parts.lib.mkFlake {inherit inputs;} {
@@ -28,14 +34,42 @@
         system,
         ...
       }: let
+        toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
         libs = [];
       in {
+        _module.args.pkgs = import inputs.nixpkgs {
+          inherit system;
+          overlays = [inputs.rust-overlay.overlays.default];
+        };
+
         checks.pre-commit-check = pre-commit-hooks.lib.${system}.run {
           src = ./.;
           hooks = {
             # Nix formatting
             alejandra.enable = true;
 
+            # Toml formatting
+            taplo.enable = true;
+
+            # Rust formatting and linting
+            rustfmt = {
+              enable = true;
+              packageOverrides = {
+                cargo = toolchain;
+                rustfmt = toolchain;
+              };
+            };
+            clippy = {
+              enable = true;
+              packageOverrides = {
+                cargo = toolchain;
+                clippy = toolchain;
+              };
+              settings = {
+                denyWarnings = true;
+              };
+            };
+
             # Spell checking
             typos.enable = true;
           };
@@ -51,9 +85,13 @@
               protobuf
               protoc-gen-go
               protoc-gen-go-grpc
+
+              mold
+              clang
             ]
             ++ libs
             ++ [
+              toolchain
               self.checks.${system}.pre-commit-check.enabledPackages
             ];
           LD_LIBRARY_PATH = lib.makeLibraryPath libs;
diff --git a/justfile b/justfile
index 1efe93c..54ee29a 100644
--- a/justfile
+++ b/justfile
@@ -1,8 +1,11 @@
 _default:
     just --list
 
-compile-protos-go:
+go-compile-protos:
     protoc --go_out=go/proto --go_opt=paths=source_relative \
         --go-grpc_out=go/proto --go-grpc_opt=paths=source_relative \
         --proto_path=proto \
         proto/webtomaster.proto proto/shared/target.proto proto/shared/worker.proto
+
+rust-test:
+    cargo test
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..2e2b8c8
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "1.82.0"
diff --git a/rust/emerwen-proto/Cargo.toml b/rust/emerwen-proto/Cargo.toml
new file mode 100644
index 0000000..7a059c0
--- /dev/null
+++ b/rust/emerwen-proto/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "emerwen-proto"
+version = "0.1.0"
+authors.workspace = true
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+publish.workspace = true
+repository.workspace = true
+
+[dependencies]
+prost = "0.13"
+serde = { version = "1", features = ["derive"] }
+tonic = "0.12"
+
+[build-dependencies]
+tonic-build = "0.12"
diff --git a/rust/emerwen-proto/build.rs b/rust/emerwen-proto/build.rs
new file mode 100644
index 0000000..a612322
--- /dev/null
+++ b/rust/emerwen-proto/build.rs
@@ -0,0 +1,28 @@
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    tonic_build::configure()
+        .include_file("mod.rs")
+        .type_attribute("Target", "#[derive(serde::Deserialize, serde::Serialize)]")
+        .type_attribute(
+            "Target.method",
+            "#[derive(serde::Deserialize, serde::Serialize)]",
+        )
+        .type_attribute(
+            "Target.MethodPing",
+            "#[derive(serde::Deserialize, serde::Serialize)]",
+        )
+        .type_attribute(
+            "Target.MethodGET",
+            "#[derive(serde::Deserialize, serde::Serialize)]",
+        )
+        .type_attribute("Worker", "#[derive(serde::Deserialize, serde::Serialize)]")
+        .compile_protos(
+            &[
+                "../../proto/workertomaster.proto",
+                "../../proto/webtomaster.proto",
+                "../../proto/shared/target.proto",
+                "../../proto/shared/worker.proto",
+            ],
+            &["../../proto"],
+        )?;
+    Ok(())
+}
diff --git a/rust/emerwen-proto/src/lib.rs b/rust/emerwen-proto/src/lib.rs
new file mode 100644
index 0000000..0dee097
--- /dev/null
+++ b/rust/emerwen-proto/src/lib.rs
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2024 Jonni Liljamo <jonni@liljamo.com>
+ *
+ * This file is licensed under GPL-3.0-or-later, see NOTICE and LICENSE for
+ * more information.
+ */
+
+tonic::include_proto!("mod");
+
+use emerwen::shared::target::{Method, MethodGet, MethodPing};
+
+impl From<MethodPing> for Method {
+    fn from(value: MethodPing) -> Self {
+        Method::Ping(value)
+    }
+}
+
+impl From<MethodGet> for Method {
+    fn from(value: MethodGet) -> Self {
+        Method::Get(value)
+    }
+}
-- 
2.44.1