build, changelog: fix signing when building source package

src/build.rs

@@ -23,16 +23,22 @@ pub fn build_source_package(cwd: Option<&Path>) -> Result<(), Box<dyn Error>> {
         }
     };
 
-    // Build arguments
-    let mut args = vec!["-S", "-I", "-i", "-nc", "-d"];
+    // Build command arguments
+    let mut command = Command::new("dpkg-buildpackage");
+    command
+        .current_dir(cwd)
+        .arg("-S")
+        .arg("-I")
+        .arg("-i")
+        .arg("-nc")
+        .arg("-d");
 
     // If a signing key is found, use it for signing
     if let Some(key_id) = &signing_key {
-        args.push("-k");
-        args.push(key_id);
+        command.arg(format!("--sign-keyid={}", key_id));
         log::info!("Using GPG key {} for signing", key_id);
     } else {
-        args.push("--no-sign");
+        command.arg("--no-sign");
         log::info!(
             "No GPG key found for {} ({}), building without signing",
             maintainer_name,
@@ -40,10 +46,7 @@ pub fn build_source_package(cwd: Option<&Path>) -> Result<(), Box<dyn Error>> {
         );
     }
 
-    let status = Command::new("dpkg-buildpackage")
-        .current_dir(cwd)
-        .args(&args)
-        .status()?;
+    let status = command.status()?;
 
     if !status.success() {
         return Err(format!("dpkg-buildpackage failed with status: {}", status).into());