Handle empty state file

If no file exists an empty one is created, do not error out if that
is the case.

1 files changed, 10 insertions, 3 deletions

diff --git a/src/timer_state.cc b/src/timer_state.cc
index 770bbad..c836ffd 100644
--- a/src/timer_state.cc
+++ b/src/timer_state.cc
@@ -281,9 +281,16 @@ private:
                 << ": " << strerror(errno) << std::endl;
       return false;
     }
-    if (!parse_state(std::move(data))) {
-      std::cerr << "Invalid data in state " << state_file << "." << std::endl;
-      return false;
+    if (data.empty()) {
+      // Newly created file.
+      active_ = false;
+      total_ = std::chrono::minutes::zero();
+    } else {
+      if (!parse_state(std::move(data))) {
+        std::cerr << "Invalid data in state " << state_file
+                  << "." << std::endl;
+        return false;
+      }
     }
     return true;
   }