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Keep certain files when cleaning output; fix #574

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If DELETE_OUTPUT_DIRECTORY is set to True, all files and directories are
deleted from the output directory. There are, however, several reasons
one might want to retain certain files/directories and avoid their
deletion from the output directory. One such use case is version control
system data: a versioned output directory can facilitate deployment via
Heroku and/or allow the user to easily revert to a prior version of the
site without having to rely on regeneration via Pelican.

This change introduces the OUTPUT_RETENTION setting, a tuple of
filenames that will be preserved when the clean_output_dir function in
pelican.utils is run. Setting OUTPUT_RETENTION = (".hg", ".git") would,
for example, prevent the relevant VCS data from being deleted when the
output directory is cleaned.
This commit is contained in:
Justin Mayer 2013-06-23 11:44:53 -07:00
commit 6f36b0a246
5 changed files with 19 additions and 8 deletions
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9
pelican/tests/test_utils.py
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@ -193,28 +193,31 @@ class TestUtils(LoggedTestCase):
shutil.rmtree(empty_path, True)
def test_clean_output_dir(self):
retention = ()
test_directory = os.path.join(os.path.dirname(__file__),
'clean_output')
content = os.path.join(os.path.dirname(__file__), 'content')
shutil.copytree(content, test_directory)
utils.clean_output_dir(test_directory)
utils.clean_output_dir(test_directory, retention)
self.assertTrue(os.path.isdir(test_directory))
self.assertListEqual([], os.listdir(test_directory))
shutil.rmtree(test_directory)
def test_clean_output_dir_not_there(self):
retention = ()
test_directory = os.path.join(os.path.dirname(__file__),
'does_not_exist')
utils.clean_output_dir(test_directory)
utils.clean_output_dir(test_directory, retention)
self.assertFalse(os.path.exists(test_directory))
def test_clean_output_dir_is_file(self):
retention = ()
test_directory = os.path.join(os.path.dirname(__file__),
'this_is_a_file')
f = open(test_directory, 'w')
f.write('')
f.close()
utils.clean_output_dir(test_directory)
utils.clean_output_dir(test_directory, retention)
self.assertFalse(os.path.exists(test_directory))
def test_strftime(self):