Shortcut: do nothing, if there is no feed left

2 files changed, 9 insertions, 0 deletions

diff --git a/internal/feed/state.go b/internal/feed/state.go
index 8efef5e..2a0a1e1 100644
--- a/internal/feed/state.go
+++ b/internal/feed/state.go
@@ -82,3 +82,7 @@ func (state *State) RemoveUndue() {
 		}
 	}
 }
+
+func (state *State) NumFeeds() int {
+	return len(state.feeds)
+}
diff --git a/main.go b/main.go
index e63b883..415d19f 100644
--- a/main.go
+++ b/main.go
@@ -68,6 +68,11 @@ func run() error {
 
 	state.RemoveUndue()
 
+	if state.NumFeeds() == 0 {
+		// nothing to do
+		return nil
+	}
+
 	if success := state.Fetch(); success == 0 {
 		return fmt.Errorf("No successfull feed fetch.")
 	}