add main error types

crates/pacdef_core/src/search.rs

@@ -8,9 +8,6 @@ use regex::Regex;
 
 use crate::grouping::{Group, Package, Section};
 
-/// Error message provided when a package search yields no results.
-pub const NO_PACKAGES_FOUND: &str = "no packages matching query";
-
 pub fn search_packages(args: &ArgMatches, groups: &HashSet<Group>) -> Result<()> {
     let search_string = args
         .get_one::<String>("string")
@@ -31,7 +28,7 @@ pub fn search_packages(args: &ArgMatches, groups: &HashSet<Group>) -> Result<()>
     }
 
     if vec.is_empty() {
-        bail!(NO_PACKAGES_FOUND)
+        bail!(crate::errors::Error::NoPackagesFound);
     }
 
     print_triples(vec);