Dev tools abstraction

Cargo.toml

@@ -3050,6 +3050,18 @@ description = "Demonstrates FPS overlay"
 category = "Dev tools"
 wasm = true
 
+[[example]]
+name = "dev_cli"
+path = "examples/dev_tools/dev_cli.rs"
+doc-scrape-examples = true
+required-features = ["bevy_dev_tools"]
+
+[package.metadata.example.dev_cli]
+name = "Developer in-game command line interface"
+description = "Demonstrates the Bevy Developer CLI with dev tools abstraction"
+category = "Dev tools"
+wasm = false
+
 [[example]]
 name = "visibility_range"
 path = "examples/3d/visibility_range.rs"

crates/bevy_dev_tools/Cargo.toml

@@ -9,9 +9,10 @@ license = "MIT OR Apache-2.0"
 keywords = ["bevy"]
 
 [features]
-default = ["bevy_ui_debug"]
+default = ["bevy_ui_debug", "bevy_cli_dev_tool"]
 bevy_ci_testing = ["serde", "ron"]
 bevy_ui_debug = []
+bevy_cli_dev_tool = ["serde", "ron"]
 
 [dependencies]
 # bevy
@@ -36,10 +37,17 @@ bevy_ui = { path = "../bevy_ui", version = "0.14.0-dev", features = [
 bevy_utils = { path = "../bevy_utils", version = "0.14.0-dev" }
 bevy_window = { path = "../bevy_window", version = "0.14.0-dev" }
 bevy_text = { path = "../bevy_text", version = "0.14.0-dev" }
+bevy_log = { path = "../bevy_log", version = "0.14.0-dev" }
+bevy_state = { path = "../bevy_state", version = "0.14.0-dev" }
+
+# macros
+bevy_dev_tools_macros = { path = "macros/", version = "0.14.0-dev" }
 
 # other
 serde = { version = "1.0", features = ["derive"], optional = true }
 ron = { version = "0.8.0", optional = true }
+nom = "7"
+rustyline = "14.0.0"
 
 [lints]
 workspace = true

crates/bevy_dev_tools/macros/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "bevy_dev_tools_macros"
+version = "0.14.0-dev"
+edition = "2021"
+description = "Collection of developer tools for the Bevy Engine"
+homepage = "https://bevyengine.org"
+repository = "https://github.com/bevyengine/bevy"
+license = "MIT OR Apache-2.0"
+keywords = ["bevy"]
+
+[dependencies]
+syn = "1.0"
+quote = "1.0"
+proc-macro2 = "1.0"
+
+[lib]
+proc-macro = true

crates/bevy_dev_tools/macros/src/lib.rs

@@ -0,0 +1,22 @@
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use quote::quote;
+use syn::{parse_macro_input, DeriveInput};
+
+#[proc_macro_derive(DevCommand)]
+pub fn dev_command_derive(input: TokenStream) -> TokenStream {
+    // Parse the input tokens into a syntax tree
+    let input = parse_macro_input!(input as DeriveInput);
+
+    // Get the name of the struct
+    let name = &input.ident;
+
+    // Generate the implementation of DevCommand for the struct
+    let expanded = quote! {
+        impl DevCommand for #name {}
+    };
+
+    // Convert the generated code into a TokenStream and return it
+    TokenStream::from(expanded)
+}