rattail-project/rattail Changeset

Changeset - b3b544769d0b

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Lance Edgar (lance) - 10 years ago 2014-07-12 17:34:55
lance@edbob.org

Add `rattail.config` module, move `parse_list` function there.

This function is already proving useful in other contexts besides just the
file monitor.

4 files changed with 110 insertions and 77 deletions:

rattail/config.py

rattail/filemon/config.py

tests/filemon/test_config.py

tests/test_config.py

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rattail/config.py

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@@ new file 100644 @@
 # -*- coding: utf-8 -*-
 ################################################################################
+#
 #  Rattail -- Retail Software Framework
 #  Copyright © 2010-2014 Lance Edgar
+#
 #  This file is part of Rattail.
+#
 #  Rattail is free software: you can redistribute it and/or modify it under the
 #  terms of the GNU Affero General Public License as published by the Free
 #  Software Foundation, either version 3 of the License, or (at your option)
 #  any later version.
+#
 #  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
 #  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 #  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for
 #  more details.
+#
 #  You should have received a copy of the GNU Affero General Public License
 #  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
 ################################################################################
 """
 Configuration Utilities
 """
 import sys
 import shlex
 def parse_list(value):
     """
     Parse a configuration value, splitting by whitespace and/or commas and
     taking quoting into account, etc., yielding a list of strings.
     """
     if value is None:
         return []
     # Per the shlex docs (https://docs.python.org/2/library/shlex.html):
     # "Prior to Python 2.7.3, this module did not support Unicode input."
     if sys.version_info < (2, 7, 3) and isinstance(value, unicode): # pragma: no cover
         value = value.encode(u'utf-8')
     parser = shlex.shlex(value)
     parser.whitespace += u','
     parser.whitespace_split = True
     values = list(parser)
     for i, value in enumerate(values):
         if value.startswith(u'"') and value.endswith(u'"'):
             values[i] = value[1:-1]
     return values

rattail/filemon/config.py

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@@ @@ -27,11 +27,10 @@ File Monitor Configuration @@
 import os
 import re
 import sys
 import shlex
 import warnings
 import logging
 from rattail.config import parse_list
 from rattail.util import load_object
 from rattail.exceptions import ConfigurationError
@@ @@ -361,24 +360,3 @@ def load_legacy_profiles(config): @@
             del monitored[key]
     return monitored
 def parse_list(value):
     """
     Parse a configuration value, splitting by whitespace and/or commas and
     taking quoting into account, etc., yielding a list of strings.
     """
     if value is None:
         return []
     # Per the shlex docs (https://docs.python.org/2/library/shlex.html):
     # "Prior to Python 2.7.3, this module did not support Unicode input."
     if sys.version_info < (2, 7, 3) and isinstance(value, unicode):
         value = value.encode(u'utf-8')
     parser = shlex.shlex(value)
     parser.whitespace += u','
     parser.whitespace_split = True
     values = list(parser)
     for i, value in enumerate(values):
         if value.startswith(u'"') and value.endswith(u'"'):
             values[i] = value[1:-1]
     return values

tests/filemon/test_config.py

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@@ @@ -249,57 +249,3 @@ class TestLoadLegacyProfiles(TestCase): @@
         self.config.remove_option(u'rattail.filemon', u'foo.actions')
         monitored = config.load_legacy_profiles(self.config)
         self.assertEqual(len(monitored), 1)
 class TestParseList(TestCase):
     def test_none(self):
         value = config.parse_list(None)
         self.assertEqual(len(value), 0)
     def test_single_value(self):
         value = config.parse_list(u'foo')
         self.assertEqual(len(value), 1)
         self.assertEqual(value[0], u'foo')
     def test_single_value_padded_by_spaces(self):
         value = config.parse_list(u'   foo   ')
         self.assertEqual(len(value), 1)
         self.assertEqual(value[0], u'foo')
     def test_slash_is_not_a_separator(self):
         value = config.parse_list(u'/dev/null')
         self.assertEqual(len(value), 1)
         self.assertEqual(value[0], u'/dev/null')
     def test_multiple_values_separated_by_whitespace(self):
         value = config.parse_list(u'foo bar baz')
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'bar')
         self.assertEqual(value[2], u'baz')
     def test_multiple_values_separated_by_commas(self):
         value = config.parse_list(u'foo,bar,baz')
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'bar')
         self.assertEqual(value[2], u'baz')
     def test_multiple_values_separated_by_whitespace_and_commas(self):
         value = config.parse_list(u'  foo,   bar   baz')
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'bar')
         self.assertEqual(value[2], u'baz')
     def test_multiple_values_separated_by_whitespace_and_commas_with_some_quoting(self):
         value = config.parse_list(u"""
         foo
         "C:\\some path\\with spaces\\and, a comma",
         baz
 """)
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'C:\\some path\\with spaces\\and, a comma')
         self.assertEqual(value[2], u'baz')

tests/test_config.py

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@@ new file 100644 @@
 # -*- coding: utf-8 -*-
 from unittest import TestCase
 from rattail import config
 class TestParseList(TestCase):
     def test_none(self):
         value = config.parse_list(None)
         self.assertEqual(len(value), 0)
     def test_single_value(self):
         value = config.parse_list(u'foo')
         self.assertEqual(len(value), 1)
         self.assertEqual(value[0], u'foo')
     def test_single_value_padded_by_spaces(self):
         value = config.parse_list(u'   foo   ')
         self.assertEqual(len(value), 1)
         self.assertEqual(value[0], u'foo')
     def test_slash_is_not_a_separator(self):
         value = config.parse_list(u'/dev/null')
         self.assertEqual(len(value), 1)
         self.assertEqual(value[0], u'/dev/null')
     def test_multiple_values_separated_by_whitespace(self):
         value = config.parse_list(u'foo bar baz')
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'bar')
         self.assertEqual(value[2], u'baz')
     def test_multiple_values_separated_by_commas(self):
         value = config.parse_list(u'foo,bar,baz')
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'bar')
         self.assertEqual(value[2], u'baz')
     def test_multiple_values_separated_by_whitespace_and_commas(self):
         value = config.parse_list(u'  foo,   bar   baz')
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'bar')
         self.assertEqual(value[2], u'baz')
     def test_multiple_values_separated_by_whitespace_and_commas_with_some_quoting(self):
         value = config.parse_list(u"""
         foo
         "C:\\some path\\with spaces\\and, a comma",
         baz
 """)
         self.assertEqual(len(value), 3)
         self.assertEqual(value[0], u'foo')
         self.assertEqual(value[1], u'C:\\some path\\with spaces\\and, a comma')
         self.assertEqual(value[2], u'baz')

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