fix(build): progress towards building the native extension

Author: zah

Rakefile

@@ -1,6 +1,6 @@
 require 'rb_sys/extensiontask'
 
-RbSys::ExtensionTask.new('codetracer_ruby_native_recorder') do |ext|
+RbSys::ExtensionTask.new('codetracer_ruby_recorder') do |ext|
   ext.ext_dir = 'ext/native_tracer'
   ext.lib_dir = 'src'
   ext.gem_spec = Gem::Specification.load('codetracer-ruby-recorder.gemspec')

ext/native_tracer/.gitignore

@@ -0,0 +1 @@
+target/

ext/native_tracer/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "codetracer_ruby_native_recorder"
+name = "codetracer_ruby_recorder"
 version = "0.1.0"
 edition = "2021" # latest stable Rust edition
 description = "Native Ruby tracer using rb_add_event_hook2"
@@ -9,4 +9,4 @@ crate-type = ["cdylib"]
 
 [dependencies]
 rb-sys = "0.9"
-runtime_tracing = "0.1"
+runtime_tracing = "0.10.0"

ext/native_tracer/README.md

@@ -1,4 +1,4 @@
-# codetracer_ruby_native_recorder
+# codetracer_ruby_recorder
 
 This crate provides a minimal Ruby tracer implemented in Rust.
 It registers a Ruby VM event hook using `rb_add_event_hook2` and
@@ -17,7 +17,7 @@ If you have `just` installed, run `just build-extension` from the project root.
 The produced shared library can be required from Ruby:
 
 ```ruby
-require_relative 'target/release/libcodetracer_ruby_native_recorder'
+require_relative 'target/release/libcodetracer_ruby_recorder'
 ```
 
 Once loaded, the tracer starts writing a trace to `trace.json` or the

ext/native_tracer/extconf.rb

@@ -1,4 +1,4 @@
 require 'mkmf'
 require 'rb_sys/mkmf'
 
-create_rust_makefile('codetracer_ruby_native_recorder')
+create_rust_makefile('codetracer_ruby_recorder')

ext/native_tracer/src/lib.rs

@@ -23,7 +23,7 @@ extern "C" fn event_hook(ev: rb_event_flag_t, _data: VALUE, _self: VALUE, _mid:
 }
 
 #[no_mangle]
-pub extern "C" fn Init_codetracer_ruby_native_recorder() {
+pub extern "C" fn Init_codetracer_ruby_recorder() {
     unsafe {
         let out = std::env::var("CODETRACER_DB_TRACE_PATH").unwrap_or_else(|_| "trace.json".to_string());
         let file = std::fs::File::create(out).expect("failed to create trace output");

flake.nix

@@ -12,7 +12,18 @@
         let pkgs = import nixpkgs { inherit system; };
         in {
           default = pkgs.mkShell {
-            packages = with pkgs; [ ruby rustc cargo just git-lfs ];
+            packages = with pkgs; [
+              ruby
+
+              # The native extension is implemented in Rust
+              rustc
+              cargo
+              libiconv # required as a dependency when building the rb-sys Rust crate
+
+              # For build automation
+              just
+              git-lfs
+            ];
           };
         });
     };