+void transport_set_verbosity(struct transport *transport, int verbosity,
+ int force_progress)
+{
+ if (verbosity >= 2)
+ transport->verbose = verbosity <= 3 ? verbosity : 3;
+ if (verbosity < 0)
+ transport->verbose = -1;
+
+ /**
+ * Rules used to determine whether to report progress (processing aborts
+ * when a rule is satisfied):
+ *
+ * 1. Report progress, if force_progress is 1 (ie. --progress).
+ * 2. Don't report progress, if verbosity < 0 (ie. -q/--quiet ).
+ * 3. Report progress if isatty(2) is 1.
+ **/
+ transport->progress = force_progress || (verbosity >= 0 && isatty(2));
+}
+