Update hacking for Python3

The repo is Python 3 now, so update hacking to version 3.0 which
supports Python 3.

Fix problems found.

Update local hacking checks for new flake8.

Remove hacking and friends from lower-constraints, it's not needed
there.

Change-Id: Iadf750a1e6d3181b645ceccdf75cf910bc23adfd

docker/health_check.py

@@ -19,8 +19,9 @@
 
 def main():
     """health check for Monasca-persister"""
-    #TODO wait for health check endpoint ...
+    # TODO(Christian Brandstetter) wait for health check endpoint ...
     return 0
 
+
 if __name__ == '__main__':
     main()

lower-constraints.txt

@@ -8,13 +8,11 @@ docutils==0.11
 elasticsearch==2.0.0
 extras==1.0.0
 fixtures==3.0.0
-flake8==2.5.5
 future==0.16.0
 gevent==1.2.2
 gitdb==0.6.4
 GitPython==1.0.1
 greenlet==0.4.10
-hacking==0.12.0
 influxdb==2.9.2
 iso8601==0.1.11
 kazoo==2.2
@@ -40,8 +38,6 @@ oslo.serialization==2.18.0
 oslo.utils==3.33.0
 oslotest==3.2.0
 pbr==2.0.0
-pep8==1.7.1
-pyflakes==1.0.0
 pyinotify==0.9.6
 PyMySQL==0.7.6
 pyparsing==2.1.0

monasca_persister/hacking/checks.py

@@ -11,8 +11,12 @@
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations
 # under the License.
+
 import re
 
+from hacking import core
+
+
 assert_no_xrange_re = re.compile(r"\s*xrange\s*\(")
 assert_True = re.compile(r".*assertEqual\(True, .*\)")
 assert_None = re.compile(r".*assertEqual\(None, .*\)")
@@ -23,17 +27,20 @@ no_log_warn = re.compile(r".*LOG.warn\(.*\)")
 mutable_default_args = re.compile(r"^\s*def .+\((.+=\{\}|.+=\[\])")
 
 
+@core.flake8ext
 def no_mutable_default_args(logical_line):
     msg = "M001: Method's default argument shouldn't be mutable!"
     if mutable_default_args.match(logical_line):
         yield (0, msg)
 
 
+@core.flake8ext
 def no_xrange(logical_line):
     if assert_no_xrange_re.match(logical_line):
         yield (0, "M002: Do not use xrange().")
 
 
+@core.flake8ext
 def validate_assertTrue(logical_line):
     if re.match(assert_True, logical_line):
         msg = ("M003: Unit tests should use assertTrue(value) instead"
@@ -41,6 +48,7 @@ def validate_assertTrue(logical_line):
         yield (0, msg)
 
 
+@core.flake8ext
 def validate_assertIsNone(logical_line):
     if re.match(assert_None, logical_line):
         msg = ("M004: Unit tests should use assertIsNone(value) instead"
@@ -48,12 +56,14 @@ def validate_assertIsNone(logical_line):
         yield (0, msg)
 
 
+@core.flake8ext
 def no_log_warn_check(logical_line):
     if re.match(no_log_warn, logical_line):
         msg = ("M005: LOG.warn is deprecated, please use LOG.warning!")
         yield (0, msg)
 
 
+@core.flake8ext
 def validate_assertIsNotNone(logical_line):
     if re.match(assert_Not_Equal, logical_line) or \
             re.match(assert_Is_Not, logical_line):
@@ -63,18 +73,9 @@ def validate_assertIsNotNone(logical_line):
         yield (0, msg)
 
 
+@core.flake8ext
 def assert_raisesRegexp(logical_line):
     res = assert_raises_regexp.search(logical_line)
     if res:
         yield (0, "M007: assertRaisesRegex must be used instead "
                   "of assertRaisesRegexp")
-
-
-def factory(register):
-    register(no_mutable_default_args)
-    register(no_xrange)
-    register(validate_assertTrue)
-    register(validate_assertIsNone)
-    register(no_log_warn_check)
-    register(validate_assertIsNotNone)
-    register(assert_raisesRegexp)

monasca_persister/persister.py

@@ -132,7 +132,7 @@ def main():
 
     # Start
     try:
-        LOG.info('''
+        LOG.info(r'''
 
                _____
               /     \   ____   ____ _____    ______ ____ _____
@@ -164,5 +164,6 @@ def main():
         LOG.exception('Error! Exiting.')
         clean_exit(signal.SIGKILL)
 
+
 if __name__ == "__main__":
     sys.exit(main())

releasenotes/source/conf.py

@@ -173,9 +173,9 @@ htmlhelp_basename = 'MonitoringApiReleaseNotesDoc'
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [(
-     master_doc, 'MonitoringPersiterReleaseNotes.tex',
-     u'Monitoring Persister Release Notes', [author],
-     'manual'
+    master_doc, 'MonitoringPersiterReleaseNotes.tex',
+    u'Monitoring Persister Release Notes', [author],
+    'manual'
 )]
 
 # The name of an image file (relative to this directory) to place at the top of

test-requirements.txt

@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 bandit>=1.1.0 # Apache-2.0
 flake8<2.6.0,>=2.5.4 # MIT
-hacking>=1.1.0,<1.2.0 # Apache-2.0
+hacking>=3.0,<3.1.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 stestr>=1.0.0 # Apache-2.0

tox.ini

@@ -88,8 +88,19 @@ commands =
 # B303  cassandra metrics repository uses SHA1 for metric_id
   bandit -r monasca_persister -n5 -s B303 -x monasca_persister/tests
 
-[hacking]
-local-check-factory = monasca_persister.hacking.checks.factory
+[flake8:local-plugins]
+extension =
+
+
+def factory(register):
+  M001 = checks:no_mutable_default_args
+  M002 = checks:no_xrange
+  M003 = checks:validate_assertTrue
+  M004 = checks:validate_assertIsNone
+  M005 = checks:no_log_warn_check
+  M006 = checks:validate_assertIsNotNone
+  M007 = checks:assert_raisesRegexp
+paths = ./monasca_persister/hacking
 
 [testenv:lower-constraints]
 basepython = python3