fix code duplication

src/main.rs

@@ -756,25 +756,22 @@ async fn write_commit(config:WriteCommitConfig,b:Result<AResult<(AssetVersion,De
 	};
 	let tree=repo.find_tree(tree_id)?;
 
+	let mut parents=Vec::new();
+
 	match repo.head(){
-		Ok(reference)=>repo.commit(
-			Some("HEAD"),//update_ref
-			&sig,//author
-			&sig,//commiter
-			&format!("v{}", asset_version.assetVersionNumber),//message
-			&tree,//tree (basically files)
-			&[&reference.peel_to_commit()?],//parents
-		)?,
-		Err(_)=>repo.commit(
-			Some("HEAD"),//update_ref
-			&sig,//author
-			&sig,//commiter
-			&format!("v{}", asset_version.assetVersionNumber),//message
-			&tree,//tree (basically files)
-			&[],//parents
-		)?,
+		Ok(reference)=>parents.push(reference.peel_to_commit()?),
+		Err(e)=>println!("repo head error {:?}",e),
 	};
 
+	repo.commit(
+		Some("HEAD"),//update_ref
+		&sig,//author
+		&sig,//commiter
+		&format!("v{}", asset_version.assetVersionNumber),//message
+		&tree,//tree (basically files)
+		parents.iter().collect::<Vec<&git2::Commit<'_>>>().as_slice(),//parents
+	)?;
+
 	//commit
 	Ok(())
 }