ceph-disk: clear TERM to avoid libreadline hijinx

The weird output from libreadline users is related to the TERM variable.

Signed-off-by: Sage Weil <sage@inktank.com>

diff --git a/src/ceph-disk b/src/ceph-disk
index 26097c8e0897371950ec8d4f54c7473df30c0a5e..3f15a9a1d220312f449b728e396ad9a99e732345 100755 (executable)
--- a/src/ceph-disk
+++ b/src/ceph-disk
@@ -57,6 +57,11 @@ INIT_SYSTEMS = [
     'auto',
     ]
 
+# Nuke the TERM variable to avoid confusing any subprocesses we call.
+# For example, libreadline will print weird control sequences for some
+# TERM values.
+if 'TERM' in os.environ:
+    del os.environ['TERM']
 
 LOG_NAME = __name__
 if LOG_NAME == '__main__':