Add Cargo compile targets configuration

src/cargo_toml.rs

@@ -106,10 +106,24 @@ pub struct RemainingCoreMetadata {
     pub name: Option<String>,
     /// The directory containing the wheel data
     pub data: Option<String>,
+    /// Cargo compile targets
+    pub targets: Option<Vec<CargoTarget>>,
     #[serde(flatten)]
     pub other: HashMap<String, toml_edit::easy::Value>,
 }
 
+/// Cargo compile target
+#[derive(Serialize, Deserialize, Debug, Clone, Default)]
+#[serde(rename_all = "kebab-case")]
+pub struct CargoTarget {
+    /// Name as given in the `Cargo.toml` or generated from the file name
+    pub name: String,
+    /// Kind of target ("bin", "lib")
+    pub kind: Option<String>,
+    /// Bridge model, which kind of bindings to use
+    pub bindings: Option<String>,
+}
+
 #[cfg(test)]
 mod test {
     use super::*;
@@ -137,11 +151,20 @@ mod test {
             [package.metadata.maturin]
             classifiers = ["Programming Language :: Python"]
             requires-dist = ["flask~=1.1.0", "toml==0.10.0"]
+
+            [[package.metadata.maturin.targets]]
+            name = "pyo3_pure"
+            kind = "lib"
+            bindings = "pyo3"
         "#
         );
 
         let cargo_toml: Result<CargoToml, _> = toml_edit::easy::from_str(cargo_toml);
         assert!(cargo_toml.is_ok());
+
+        let maturin = cargo_toml.unwrap().remaining_core_metadata();
+        let targets = maturin.targets.unwrap();
+        assert_eq!("pyo3_pure", targets[0].name);
     }
 
     #[test]

test-crates/hello-world/Cargo.toml

@@ -8,3 +8,10 @@ readme = "../../README.md"
 default-run = "hello-world"
 
 [dependencies]
+
+[[package.metadata.maturin.targets]]
+name = "hello-world"
+bindings = "bin"
+
+[[package.metadata.maturin.targets]]
+name = "foo"