refactor

src/db.rs

@@ -5,11 +5,17 @@ use alpm::PackageReason::Explicit;
 
 use crate::Package;
 
+/// Get all packages that are installed in the system.
 pub fn get_all_installed_packages() -> HashSet<Package> {
-    convert_to_pacdef_packages(get_all_installed_packages_alpm())
+    convert_to_pacdef_packages(get_all_installed_packages_from_alpm())
 }
 
-fn get_all_installed_packages_alpm() -> HashSet<String> {
+/// Get all packages that were installed in the system explicitly.
+pub fn get_explicitly_installed_packages() -> HashSet<Package> {
+    convert_to_pacdef_packages(get_explicitly_installed_packages_from_alpm())
+}
+
+fn get_all_installed_packages_from_alpm() -> HashSet<String> {
     let db = Alpm::new("/", "/var/lib/pacman").unwrap();
     db.localdb()
         .pkgs()
@@ -18,11 +24,7 @@ fn get_all_installed_packages_alpm() -> HashSet<String> {
         .collect()
 }
 
-pub fn get_explicitly_installed_packages() -> HashSet<Package> {
+fn get_explicitly_installed_packages_from_alpm() -> HashSet<String> {
-    convert_to_pacdef_packages(get_explicitly_installed_packages_alpm())
-}
-
-fn get_explicitly_installed_packages_alpm() -> HashSet<String> {
     let db = Alpm::new("/", "/var/lib/pacman").unwrap();
     db.localdb()
         .pkgs()