yarn: Remove scenario DATADIR after runningbaserock/richardmaw/space-efficient

Now it will remove the DATADIR of the scenario after it has run,
rather than after every scenario has been run, if --snapshot has not
been specified.

This reduces the amount of space needed to run yarn tests further.

1 files changed, 3 insertions, 0 deletions

diff --git a/yarn b/yarn
index 15b171c..ffec41a 100755
--- a/yarn
+++ b/yarn
@@ -260,6 +260,9 @@ class YarnRunner(cliapp.Application):
         ok = scenario_runner.run_scenario(scenario, datadir, homedir)
 
         self.remember_scenario_timing(time.time() - started)
+
+        if not self.settings['snapshot']:
+            shutil.rmtree(datadir, ignore_errors=True)
         return ok
 
     def homedir(self, datadir):