Remove hacking check for log translation

The I18n translation team has removed log translations, so our
enforcement of the _Lx translation markers is no longer required.

See:
http://lists.openstack.org/pipermail/openstack-dev/2017-March/113365.html
http://lists.openstack.org/pipermail/openstack-i18n/2016-November/002574.html

Change-Id: I54a57ed832d440f6e0c7c39cb59f03ca443dfeda

HACKING.rst

@@ -12,9 +12,6 @@ Cinder Specific Commandments
 - [N322] Ensure default arguments are not mutable.
 - [N323] Add check for explicit import of _() to ensure proper translation.
 - [N325] str() and unicode() cannot be used on an exception. Remove or use six.text_type().
-- [N328] LOG.info messages require translations `_LI()`.
-- [N329] LOG.exception and LOG.error messages require translations `_LE()`.
-- [N330] LOG.warning messages require translations `_LW()`.
 - [N336] Must use a dict comprehension instead of a dict constructor with a sequence of key-value pairs.
 - [C301] timeutils.utcnow() from oslo_utils should be used instead of datetime.now().
 - [C302] six.text_type should be used instead of unicode.

cinder/hacking/checks.py

@@ -54,12 +54,6 @@ oslo_namespace_imports = re.compile(r"from[\s]*oslo[.](concurrency|db"
                                     "|config|utils|serialization|log)")
 no_contextlib_nested = re.compile(r"\s*with (contextlib\.)?nested\(")
 
-log_translation_LI = re.compile(
-    r"(.)*LOG\.(info)\(\s*(_\(|'|\")")
-log_translation_LE = re.compile(
-    r"(.)*LOG\.(exception|error)\(\s*(_\(|'|\")")
-log_translation_LW = re.compile(
-    r"(.)*LOG\.(warning|warn)\(\s*(_\(|'|\")")
 logging_instance = re.compile(
     r"(.)*LOG\.(warning|info|debug|error|exception)\(")
 
@@ -366,24 +360,6 @@ class CheckOptRegistrationArgs(BaseASTChecker):
         return super(CheckOptRegistrationArgs, self).generic_visit(node)
 
 
-def validate_log_translations(logical_line, filename):
-    # Translations are not required in the test directory.
-    # This will not catch all instances of violations, just direct
-    # misuse of the form LOG.info('Message').
-    if "cinder/tests" in filename:
-        return
-    msg = "N328: LOG.info messages require translations `_LI()`!"
-    if log_translation_LI.match(logical_line):
-        yield (0, msg)
-    msg = ("N329: LOG.exception and LOG.error messages require "
-           "translations `_LE()`!")
-    if log_translation_LE.match(logical_line):
-        yield (0, msg)
-    msg = "N330: LOG.warning messages require translations `_LW()`!"
-    if log_translation_LW.match(logical_line):
-        yield (0, msg)
-
-
 def check_datetime_now(logical_line, noqa):
     if noqa:
         return
@@ -496,7 +472,6 @@ def factory(register):
     register(check_datetime_now)
     register(check_timeutils_strtime)
     register(check_timeutils_isotime)
-    register(validate_log_translations)
     register(check_unicode_usage)
     register(check_no_print_statements)
     register(check_no_log_audit)

cinder/tests/unit/test_hacking.py

@@ -105,7 +105,7 @@ class HackingTestCase(test.TestCase):
             "msg = _('My message')",
             "cinder.tests.unit/other_files.py"))))
         self.assertEqual(0, len(list(checks.check_explicit_underscore_import(
-            "from cinder.i18n import _LE, _, _LW",
+            "from cinder.i18n import _",
             "cinder.tests.unit/other_files2.py"))))
         self.assertEqual(0, len(list(checks.check_explicit_underscore_import(
             "msg = _('My message')",
@@ -120,9 +120,6 @@ class HackingTestCase(test.TestCase):
         self.assertEqual(0, len(list(checks.check_explicit_underscore_import(
             "LOG.info('My info message')",
             "cinder.tests.unit/other_files4.py"))))
-        self.assertEqual(0, len(list(checks.check_explicit_underscore_import(
-            "from cinder.i18n import _LW",
-            "cinder.tests.unit/other_files5.py"))))
         self.assertEqual(1, len(list(checks.check_explicit_underscore_import(
             "msg = _('My message')",
             "cinder.tests.unit/other_files5.py"))))
@@ -310,26 +307,6 @@ class HackingTestCase(test.TestCase):
         self.assertEqual(0, len(list(checks.check_timeutils_strtime(
             "strftime"))))
 
-    def test_validate_log_translations(self):
-        self.assertEqual(1, len(list(checks.validate_log_translations(
-            "LOG.info('foo')", "foo.py"))))
-        self.assertEqual(1, len(list(checks.validate_log_translations(
-            "LOG.warning('foo')", "foo.py"))))
-        self.assertEqual(1, len(list(checks.validate_log_translations(
-            "LOG.error('foo')", "foo.py"))))
-        self.assertEqual(1, len(list(checks.validate_log_translations(
-            "LOG.exception('foo')", "foo.py"))))
-        self.assertEqual(0, len(list(checks.validate_log_translations(
-            "LOG.info('foo')", "cinder/tests/foo.py"))))
-        self.assertEqual(0, len(list(checks.validate_log_translations(
-            "LOG.info(_LI('foo')", "foo.py"))))
-        self.assertEqual(0, len(list(checks.validate_log_translations(
-            "LOG.warning(_LW('foo')", "foo.py"))))
-        self.assertEqual(0, len(list(checks.validate_log_translations(
-            "LOG.error(_LE('foo')", "foo.py"))))
-        self.assertEqual(0, len(list(checks.validate_log_translations(
-            "LOG.exception(_LE('foo')", "foo.py"))))
-
     def test_check_unicode_usage(self):
         self.assertEqual(1, len(list(checks.check_unicode_usage(
             "unicode(msg)", False))))