Fix new clippy warnings on Rust 1.78.0

src/build_options.rs

@@ -1280,12 +1280,12 @@ impl CargoOptions {
         let mut args_from_pyproject = Vec::new();
 
         if self.manifest_path.is_none() && tool_maturin.manifest_path.is_some() {
-            self.manifest_path = tool_maturin.manifest_path.clone();
+            self.manifest_path.clone_from(&tool_maturin.manifest_path);
             args_from_pyproject.push("manifest-path");
         }
 
         if self.profile.is_none() && tool_maturin.profile.is_some() {
-            self.profile = tool_maturin.profile.clone();
+            self.profile.clone_from(&tool_maturin.profile);
             args_from_pyproject.push("profile");
         }
 

src/compile.rs

@@ -552,7 +552,7 @@ fn compile_target(
 
     // Add linked_paths to build artifacts
     for artifact in artifacts.values_mut() {
-        artifact.linked_paths = linked_paths.clone();
+        artifact.linked_paths.clone_from(&linked_paths);
     }
 
     let status = cargo_build

src/main.rs

@@ -33,7 +33,7 @@ use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
     after_help = "Visit https://maturin.rs to learn more about maturin.",
     styles = cargo_options::styles(),
 )]
-#[cfg_attr(clippy, allow(clippy::large_enum_variant))]
+#[allow(clippy::large_enum_variant)]
 /// Build and publish crates with pyo3, cffi and uniffi bindings as well
 /// as rust binaries as python packages
 enum Opt {

src/metadata.rs

@@ -134,7 +134,7 @@ impl Metadata23 {
     ) -> Result<()> {
         let pyproject_dir = pyproject_dir.as_ref();
         if let Some(project) = &pyproject_toml.project {
-            self.name = project.name.clone();
+            self.name.clone_from(&project.name);
 
             if let Some(version) = &project.version {
                 self.version = version.clone();
@@ -173,7 +173,7 @@ impl Metadata23 {
                     if let Some(description) = text {
                         self.description = Some(description.clone());
                     }
-                    self.description_content_type = content_type.clone();
+                    self.description_content_type.clone_from(content_type);
                 }
                 None => {}
             }
@@ -279,15 +279,15 @@ impl Metadata23 {
             }
 
             if let Some(classifiers) = &project.classifiers {
-                self.classifiers = classifiers.clone();
+                self.classifiers.clone_from(classifiers);
             }
 
             if let Some(urls) = &project.urls {
-                self.project_url = urls.clone();
+                self.project_url.clone_from(urls);
             }
 
             if let Some(dependencies) = &project.dependencies {
-                self.requires_dist = dependencies.clone();
+                self.requires_dist.clone_from(dependencies);
             }
 
             if let Some(dependencies) = &project.optional_dependencies {
@@ -313,10 +313,10 @@ impl Metadata23 {
             }
 
             if let Some(scripts) = &project.scripts {
-                self.scripts = scripts.clone();
+                self.scripts.clone_from(scripts);
             }
             if let Some(gui_scripts) = &project.gui_scripts {
-                self.gui_scripts = gui_scripts.clone();
+                self.gui_scripts.clone_from(gui_scripts);
             }
             if let Some(entry_points) = &project.entry_points {
                 // Raise error on ambiguous entry points: https://www.python.org/dev/peps/pep-0621/#entry-points
@@ -326,7 +326,7 @@ impl Metadata23 {
                 if entry_points.contains_key("gui_scripts") {
                     bail!("gui_scripts is not allowed in project.entry-points table");
                 }
-                self.entry_points = entry_points.clone();
+                self.entry_points.clone_from(entry_points);
             }
         }
         Ok(())