feat: add dart support

Author: Kenzo-Wada

Cargo.lock

@@ -27,6 +27,7 @@ reqwest = { version = "0.12", default-features = false, features = [
 ] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
+serde_yaml = "0.9"
 toml = "0.9"
 thiserror = "2"
 url = "2"

Cargo.toml

@@ -14,11 +14,12 @@ https://github.com/user-attachments/assets/d7a7b047-312e-4d56-ba5d-25ed6eb2e5ce
 
 The following ecosystems are currently detected when you run the tool:
 
-| Ecosystem       | Detection Source                                                               | Implementation                                             |
+| Ecosystem       | Detection Source                                                               | Implementation                                              |
 | --------------- | ------------------------------------------------------------------------------ | ---------------------------------------------------------- |
 | Cargo (Rust)    | `Cargo.toml`                                                                   | [`src/ecosystems/cargo.rs`](src/ecosystems/cargo.rs)       |
 | Node.js         | `package.json`                                                                 | [`src/ecosystems/node.rs`](src/ecosystems/node.rs)         |
 | Go (Go Modules) | `go.mod`                                                                       | [`src/ecosystems/go.rs`](src/ecosystems/go.rs)             |
+| Dart            | `pubspec.yaml`                                                                 | [`src/ecosystems/dart.rs`](src/ecosystems/dart.rs)         |
 | Composer (PHP)  | `composer.lock` / `composer.json`                                              | [`src/ecosystems/composer.rs`](src/ecosystems/composer.rs) |
 | Ruby (Bundler)  | `Gemfile` / `Gemfile.lock`                                                     | [`src/ecosystems/ruby.rs`](src/ecosystems/ruby.rs)         |
 | Python          | `pyproject.toml` / `requirements.txt` / `Pipfile` / `Pipfile.lock` / `uv.lock` | [`src/ecosystems/python.rs`](src/ecosystems/python.rs)     |

README.md

@@ -3,9 +3,9 @@ use std::thread;
 
 use crate::ecosystems::{
     CargoDiscoverer, CargoDiscoveryError, CommandMetadataFetcher, ComposerDiscoverer,
-    ComposerDiscoveryError, GoDiscoverer, GoDiscoveryError, GradleDiscoverer, GradleDiscoveryError,
-    NodeDiscoverer, NodeDiscoveryError, PythonDiscoverer, PythonDiscoveryError, RenvDiscoverer,
-    RenvDiscoveryError, RubyDiscoverer, RubyDiscoveryError,
+    ComposerDiscoveryError, DartDiscoverer, DartDiscoveryError, GoDiscoverer, GoDiscoveryError,
+    GradleDiscoverer, GradleDiscoveryError, NodeDiscoverer, NodeDiscoveryError, PythonDiscoverer,
+    PythonDiscoveryError, RenvDiscoverer, RenvDiscoveryError, RubyDiscoverer, RubyDiscoveryError,
 };
 use url::Url;
 
@@ -22,6 +22,7 @@ pub enum Framework {
     Node,
     Cargo,
     Go,
+    Dart,
     Composer,
     Ruby,
     Python,
@@ -38,6 +39,8 @@ pub enum DiscoveryError {
     #[error(transparent)]
     Go(Box<GoDiscoveryError>),
     #[error(transparent)]
+    Dart(Box<DartDiscoveryError>),
+    #[error(transparent)]
     Composer(Box<ComposerDiscoveryError>),
     #[error(transparent)]
     Ruby(Box<RubyDiscoveryError>),
@@ -62,6 +65,7 @@ macro_rules! impl_from_discovery_error {
 impl_from_discovery_error!(Node, NodeDiscoveryError);
 impl_from_discovery_error!(Cargo, CargoDiscoveryError);
 impl_from_discovery_error!(Go, GoDiscoveryError);
+impl_from_discovery_error!(Dart, DartDiscoveryError);
 impl_from_discovery_error!(Composer, ComposerDiscoveryError);
 impl_from_discovery_error!(Ruby, RubyDiscoveryError);
 impl_from_discovery_error!(Python, PythonDiscoveryError);
@@ -83,6 +87,9 @@ pub fn detect_frameworks(project_root: &Path) -> Vec<Framework> {
     if project_root.join("go.mod").exists() {
         frameworks.push(Framework::Go);
     }
+    if project_root.join("pubspec.yaml").exists() {
+        frameworks.push(Framework::Dart);
+    }
     if project_root.join("composer.lock").exists() || project_root.join("composer.json").exists() {
         frameworks.push(Framework::Composer);
     }
@@ -132,6 +139,10 @@ pub fn discover_for_frameworks(
                             let discoverer = GoDiscoverer::new();
                             discoverer.discover(project_root)?
                         }
+                        Framework::Dart => {
+                            let discoverer = DartDiscoverer::new();
+                            discoverer.discover(project_root)?
+                        }
                         Framework::Composer => {
                             let discoverer = ComposerDiscoverer::new();
                             discoverer.discover(project_root)?