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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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3
pelican/__init__.py
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@ -49,6 +49,7 @@ class Pelican(object):
self.markup = settings['MARKUP']
self.ignore_files = settings['IGNORE_FILES']
self.delete_outputdir = settings['DELETE_OUTPUT_DIRECTORY']
self.output_retention = settings['OUTPUT_RETENTION']
self.init_path()
self.init_plugins()
@ -175,7 +176,7 @@ class Pelican(object):
# explicitely asked
if (self.delete_outputdir and not
os.path.realpath(self.path).startswith(self.output_path)):
clean_output_dir(self.output_path)
clean_output_dir(self.output_path, self.output_retention)
writer = self.get_writer()