error handling

src/routes/ui/repo.rs

@@ -8,6 +8,7 @@ use rocket::{State, get};
 use pacco::pkg::{Repository, arch::Architecture};
 use serde_json::json;
 
+use crate::routes::no_such_repo_error;
 use crate::routes::ui::arch_card;
 use pacco::config::Config;
 
@@ -18,18 +19,18 @@ pub async fn repo_arch_json(
     ctx: RequestContext,
     arch: &str,
     config: &State<Config>,
-) -> serde_json::Value {
+) -> Result<serde_json::Value, serde_json::Value> {
     let arch = Architecture::parse(arch).unwrap_or(Architecture::any);
     let repo_name = repo;
 
-    let repo = Repository::new(repo_name).unwrap();
+    let repo = Repository::new(repo_name).ok_or_else(no_such_repo_error)?;
     let packages = repo.list_pkg_arch(arch.clone());
 
-    json!({
+    Ok(json!({
         "repo": repo_name,
         "arch": arch.to_string(),
         "packages": packages
-    })
+    }))
 }
 
 /// Repository Overview UI