diff --git a/src/backup/backup_info.rs b/src/backup/backup_info.rs
index 8eb715ae..806de0ce 100644
--- a/src/backup/backup_info.rs
+++ b/src/backup/backup_info.rs
@@ -37,7 +37,7 @@ lazy_static!{
 }
 
 /// BackupGroup is a directory containing a list of BackupDir
-#[derive(Debug, Clone)]
+#[derive(Debug, Eq, PartialEq, Hash, Clone)]
 pub struct BackupGroup {
     /// Type of backup
     backup_type: String,
@@ -137,6 +137,19 @@ impl BackupGroup {
         Ok(last)
     }
 
+    pub fn list_groups(base_path: &Path) -> Result<Vec<BackupGroup>, Error> {
+        let mut list = Vec::new();
+
+        tools::scandir(libc::AT_FDCWD, base_path, &BACKUP_TYPE_REGEX, |l0_fd, backup_type, file_type| {
+            if file_type != nix::dir::Type::Directory { return Ok(()); }
+            tools::scandir(l0_fd, backup_type, &BACKUP_ID_REGEX, |_l1_fd, backup_id, file_type| {
+                if file_type != nix::dir::Type::Directory { return Ok(()); }
+                list.push(BackupGroup::new(backup_type, backup_id));
+                Ok(())
+            })
+        })?;
+        Ok(list)
+    }
 }
 
 /// Uniquely identify a Backup (relative to data store)
@@ -249,7 +262,7 @@ impl BackupInfo {
     }
 
     pub fn list_backups(base_path: &Path) -> Result<Vec<BackupInfo>, Error> {
-        let mut list = vec![];
+        let mut list = Vec::new();
 
         tools::scandir(libc::AT_FDCWD, base_path, &BACKUP_TYPE_REGEX, |l0_fd, backup_type, file_type| {
             if file_type != nix::dir::Type::Directory { return Ok(()); }