feat: add nix packages and dev shell

This commit adds packages for the iroh-dns-server and iroh-relay
binaries as well as a rust dev shell for development. To make the
packaging work better (less redundant versions in ni flake) I also
made the crate versions a workspace property that is inherited.

Author: elsirion

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -1,2 +1,3 @@
 /target
+/result
 iroh.config.toml

Cargo.toml

@@ -7,6 +7,7 @@ members = [
   "iroh-relay",
 ]
 resolver = "2"
+package.version = "0.35.0"
 
 [profile.release]
 debug = true

flake.lock

@@ -0,0 +1,62 @@
+{
+  description = "Iroh workspace flake (with crane, workspace build)";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    crane.url = "github:ipetkov/crane";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, crane, rust-overlay, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ (import rust-overlay) ];
+        };
+        craneLib = crane.mkLib pkgs;
+
+        src = craneLib.cleanCargoSource ./.;
+
+        commonArgs = {
+          inherit src;
+          strictDeps = true;
+          cargoExtraArgs = "--features server";
+        };
+
+        workspace-artifacts = craneLib.buildDepsOnly (commonArgs // {
+          pname = "iroh-workspace";
+        });
+
+        iroh-relay = craneLib.buildPackage (commonArgs // {
+          pname = "iroh-relay";
+          cargoArtifacts = workspace-artifacts;
+          doCheck = false;
+          cargoBuildCommand = "cargo build --release --bin iroh-relay";
+          installPhase = ''
+            mkdir -p $out/bin
+            cp target/release/iroh-relay $out/bin/
+          '';
+        });
+
+        iroh-dns-server = craneLib.buildPackage (commonArgs // {
+          pname = "iroh-dns-server";
+          cargoArtifacts = workspace-artifacts;
+          doCheck = false;
+          cargoBuildCommand = "cargo build --release --bin iroh-dns-server";
+          installPhase = ''
+            mkdir -p $out/bin
+            cp target/release/iroh-dns-server $out/bin/
+          '';
+        });
+      in {
+        packages.iroh-relay = iroh-relay;
+        packages.iroh-dns-server = iroh-dns-server;
+        devShells.default = craneLib.devShell {
+          checks = { workspace = workspace-artifacts; };
+          packages = [ pkgs.rust-analyzer pkgs.bashInteractive ];
+        };
+      }
+    );
+}

flake.nix

@@ -1,6 +1,6 @@
 [package]
 name = "iroh-base"
-version = "0.35.0"
+version = { workspace = true }
 edition = "2021"
 readme = "README.md"
 description = "base type and utilities for Iroh"

iroh-base/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iroh-dns-server"
-version = "0.35.0"
+version = { workspace = true }
 edition = "2021"
 description = "A pkarr relay and DNS server"
 license = "MIT OR Apache-2.0"

iroh-dns-server/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iroh-relay"
-version = "0.35.0"
+version = { workspace = true }
 edition = "2021"
 readme = "README.md"
 description = "Iroh's relay server and client"

iroh-relay/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iroh"
-version = "0.35.0"
+version = { workspace = true }
 edition = "2021"
 readme = "README.md"
 description = "p2p quic connections dialed by public key"

iroh/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iroh-bench"
-version = "0.35.0"
+version = { workspace = true }
 edition = "2021"
 license = "MIT OR Apache-2.0"
 publish = false