cargo-coupler bundle: store crate name in PackageInfo

Instead of recomputing it in multiple places, compute the crate name once and
store it alongside the package name in PackageInfo.

cargo-coupler/src/main.rs

@@ -179,6 +179,7 @@ impl FromStr for Target {
 
 struct PackageInfo {
     package_name: String,
+    crate_name: String,
     name: String,
     format: Format,
 }
@@ -406,6 +407,8 @@ fn bundle(cmd: &Bundle) {
                     process::exit(1);
                 };
 
+                let crate_name = package_name.replace('-', "_");
+
                 let has_cdylib = metadata.packages[index]
                     .targets
                     .iter()
@@ -420,6 +423,7 @@ fn bundle(cmd: &Bundle) {
 
                 packages_to_build.push(PackageInfo {
                     package_name,
+                    crate_name,
                     name: coupler_metadata.name.as_ref().unwrap_or(&package.name).clone(),
                     format,
                 });
@@ -534,8 +538,7 @@ fn bundle(cmd: &Bundle) {
 }
 
 fn bundle_clap(package_info: &PackageInfo, out_dir: &Path, target: &Target) {
-    let package_name = &package_info.package_name;
-    let crate_name = package_name.replace('-', "_");
+    let crate_name = &package_info.crate_name;
     let src = match target.os {
         Os::Linux => out_dir.join(format!("lib{crate_name}.so")),
         Os::MacOs => out_dir.join(format!("lib{crate_name}.dylib")),
@@ -568,8 +571,7 @@ fn bundle_clap(package_info: &PackageInfo, out_dir: &Path, target: &Target) {
 }
 
 fn bundle_vst3(package_info: &PackageInfo, out_dir: &Path, target: &Target) {
-    let package_name = &package_info.package_name;
-    let crate_name = package_name.replace('-', "_");
+    let crate_name = &package_info.crate_name;
     let src = match target.os {
         Os::Linux => out_dir.join(format!("lib{crate_name}.so")),
         Os::MacOs => out_dir.join(format!("lib{crate_name}.dylib")),