Cpal/input support

rs/cli/Cargo.toml

@@ -2,12 +2,12 @@
 name = "cli"
 version = "0.1.0"
 edition = "2021"
+description = "A CLI to process audio via the Elementary runtime"
 
 [dependencies]
 elem = { path = "../elem" }
 server = { path = "../server" }
 cxx = "1.0.131"
-env_logger = "0.11.5"
 futures-util = "0.3.31"
 hound = "3.5.1"
 log = "0.4.22"
@@ -16,6 +16,12 @@ serde_json = "1.0.133"
 tokio = { version = "1.41.1", features = ["full"] }
 tokio-tungstenite = "0.24.0"
 cpal = "0.15.3"
+tracing = "0.1.41"
+tracing-subscriber = "0.3.19"
+thiserror = "2.0.11"
+ringbuf = "0.4.7"
+clap = { version = "4.5.29", features = ["derive"] }
+clap_derive = { version = "4.0.0-rc.1" }
 
 [build-dependencies]
 cxx-build = "1.0.131"

rs/cli/flake.nix

@@ -0,0 +1,59 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+  };
+
+  outputs = inputs:
+    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [ "x86_64-linux" ];
+      perSystem = { config, self', pkgs, lib, system, ... }:
+        let
+          runtimeDeps = with pkgs; [ alsa-lib speechd ];
+          buildDeps = with pkgs; [ pkg-config rustPlatform.bindgenHook ];
+          devDeps = with pkgs; [ gdb ];
+
+          cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
+          msrv = cargoToml.package.rust-version;
+
+          rustPackage = features:
+            (pkgs.makeRustPlatform {
+              cargo = pkgs.rust-bin.stable.latest.minimal;
+              rustc = pkgs.rust-bin.stable.latest.minimal;
+            }).buildRustPackage {
+              inherit (cargoToml.package) name version;
+              src = ./.;
+              cargoLock.lockFile = ./Cargo.lock;
+              buildFeatures = features;
+              buildInputs = runtimeDeps;
+              nativeBuildInputs = buildDeps;
+              # Uncomment if your cargo tests require networking or otherwise
+              # don't play nicely with the Nix build sandbox:
+              # doCheck = false;
+            };
+
+          mkDevShell = rustc:
+            pkgs.mkShell {
+              shellHook = ''
+                export RUST_SRC_PATH=${pkgs.rustPlatform.rustLibSrc}
+              '';
+              buildInputs = runtimeDeps;
+              nativeBuildInputs = buildDeps ++ devDeps ++ [ rustc ];
+            };
+        in {
+          _module.args.pkgs = import inputs.nixpkgs {
+            inherit system;
+            overlays = [ (import inputs.rust-overlay) ];
+          };
+
+          packages.default = self'.packages.cli;
+          devShells.default = self'.devShells.nightly;
+
+          devShells.nightly = (mkDevShell (pkgs.rust-bin.selectLatestNightlyWith
+            (toolchain: toolchain.default)));
+          devShells.stable = (mkDevShell pkgs.rust-bin.stable.latest.default);
+          devShells.msrv = (mkDevShell pkgs.rust-bin.stable.${msrv}.default);
+        };
+    };
+}