Convert to oslo strutils.bool_from_string.

The only functional difference here is that the value '2' is now
treated as False instead of True. I suspect that's ok.

Change-Id: I30e75470cb3c312d7f92d389995eb6d845dd2fb0

cinder/api/v1/snapshots.py

@@ -25,6 +25,7 @@ from cinder.api import xmlutil
 from cinder import exception
 from cinder import flags
 from cinder.openstack.common import log as logging
+from cinder.openstack.common import strutils
 from cinder import utils
 from cinder import volume
 
@@ -176,7 +177,7 @@ class SnapshotsController(wsgi.Controller):
             msg = _("Invalid value '%s' for force. ") % force
             raise exception.InvalidParameterValue(err=msg)
 
-        if utils.bool_from_str(force):
+        if strutils.bool_from_string(force):
             new_snapshot = self.volume_api.create_snapshot_force(
                 context,
                 volume,

cinder/api/v2/snapshots.py

@@ -25,6 +25,7 @@ from cinder.api import xmlutil
 from cinder import exception
 from cinder import flags
 from cinder.openstack.common import log as logging
+from cinder.openstack.common import strutils
 from cinder import utils
 from cinder import volume
 
@@ -187,7 +188,7 @@ class SnapshotsController(wsgi.Controller):
             msg = _("Invalid value '%s' for force. ") % force
             raise exception.InvalidParameterValue(err=msg)
 
-        if utils.bool_from_str(force):
+        if strutils.bool_from_string(force):
             new_snapshot = self.volume_api.create_snapshot_force(
                 context,
                 volume,

cinder/tests/test_utils.py

@@ -29,6 +29,7 @@ import mox
 import cinder
 from cinder import exception
 from cinder import flags
+from cinder.openstack.common import strutils
 from cinder.openstack.common import timeutils
 from cinder import test
 from cinder import utils
@@ -299,19 +300,6 @@ class GenericUtilsTestCase(test.TestCase):
         hostname = "<}\x1fh\x10e\x08l\x02l\x05o\x12!{>"
         self.assertEqual("hello", utils.sanitize_hostname(hostname))
 
-    def test_bool_from_str(self):
-        self.assertTrue(utils.bool_from_str('1'))
-        self.assertTrue(utils.bool_from_str('2'))
-        self.assertTrue(utils.bool_from_str('-1'))
-        self.assertTrue(utils.bool_from_str('true'))
-        self.assertTrue(utils.bool_from_str('True'))
-        self.assertTrue(utils.bool_from_str('tRuE'))
-        self.assertFalse(utils.bool_from_str('False'))
-        self.assertFalse(utils.bool_from_str('false'))
-        self.assertFalse(utils.bool_from_str('0'))
-        self.assertFalse(utils.bool_from_str(None))
-        self.assertFalse(utils.bool_from_str('junk'))
-
     def test_generate_glance_url(self):
         generated_url = utils.generate_glance_url()
         actual_url = "http://%s:%d" % (FLAGS.glance_host, FLAGS.glance_port)

cinder/utils.py

@@ -815,17 +815,6 @@ def check_isinstance(obj, cls):
     return cls()  # Ugly PyLint hack
 
 
-def bool_from_str(val):
-    """Convert a string representation of a bool into a bool value"""
-
-    if not val:
-        return False
-    try:
-        return True if int(val) else False
-    except ValueError:
-        return val.lower() == 'true'
-
-
 def is_valid_boolstr(val):
     """Check if the provided string is a valid bool string or not. """
     val = str(val).lower()