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Started adding filesystem linking support to document indexing app

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This commit is contained in:
Roberto Rosario
2011-05-18 19:19:37 -04:00
parent 4b0c72633d
commit b7050b4b94
5 changed files with 115 additions and 42 deletions
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75
apps/document_indexing/filesystem.py
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@@ -1,24 +1,15 @@
import errno
import os
from django.template.defaultfilters import slugify
from django.utils.translation import ugettext_lazy as _
from document_indexing.models import IndexInstance
from metadata.classes import MetadataObject
from document_indexing.models import IndexInstance
from document_indexing.conf.settings import FILESERVING_ENABLE
from document_indexing.conf.settings import FILESERVING_PATH
from document_indexing.conf.settings import SLUGIFY_PATHS
#from document_indexing.conf.settings import MAX_RENAME_COUNT
if SLUGIFY_PATHS == False:
#Do not slugify path or filenames and extensions
SLUGIFY_FUNCTION = lambda x: x
else:
SLUGIFY_FUNCTION = slugify
# TODO: delete fileserving document function for use with rebuild index function
def get_instance_path(index_instance):
"""
@@ -33,29 +24,56 @@ def fs_create_index_directory(index_instance):
target_directory = os.path.join(FILESERVING_PATH, get_instance_path(index_instance))
try:
os.makedirs(target_directory)
#next_available_filename(document, metadata_index, target_directory, SLUGIFY_FUNCTION(document.file_filename), SLUGIFY_FUNCTION(document.file_extension))
except OSError, exc:
if exc.errno == errno.EEXIST:
pass
else:
raise OSError(_(u'Unable to create metadata indexing directory: %s') % exc)
raise OSError(_(u'Unable to create indexing directory; %s') % exc)
def document_delete_fs_links(document):
def fs_create_document_link(index_instance, document, suffix=0):
if FILESERVING_ENABLE:
pass
'''
for document_metadata_index in document.documentmetadataindex_set.all():
try:
os.unlink(document_metadata_index.filename)
document_metadata_index.delete()
except OSError, exc:
if exc.errno == errno.ENOENT:
#No longer exits, so delete db entry anyway
document_metadata_index.delete()
else:
raise OSError(_(u'Unable to delete metadata indexing symbolic link: %s') % exc)
name_part = document.file_filename
if suffix:
name_part = u'_'.join([name_part, unicode(suffix)])
filename = os.extsep.join([name_part, document.file_extension])
filepath = os.path.join(FILESERVING_PATH, get_instance_path(index_instance), filename)
print 'filepath', filepath
try:
os.symlink(document.file.path, filepath)
except OSError, exc:
if exc.errno == errno.EEXIST:
# This link should not exist, try to delete it
try:
os.unlink(filepath)
# Try again
os.symlink(document.file.path, filepath)
except Exception, exc:
raise Exception(_(u'Unable to create symbolic link, file exists and could not be deleted: %(filepath)s; %(exc)s') % {'filepath': filepath, 'exc': exc})
else:
raise OSError(_(u'Unable to create symbolic link: %(filepath)s; %(exc)s') % {'filepath': filepath, 'exc': exc})
def fs_delete_document_link(index_instance, document, suffix=0):
if FILESERVING_ENABLE:
name_part = document.file_filename
if suffix:
name_part = u'_'.join([name_part, unicode(suffix)])
filename = os.extsep.join([name_part, document.file_extension])
filepath = os.path.join(FILESERVING_PATH, get_instance_path(index_instance), filename)
print 'delete filepath', filepath
try:
os.unlink(filepath)
except OSError, exc:
if exc.errno != errno.ENOENT:
# Raise when any error other than doesn't exits
raise OSError(_(u'Unable to delete document symbolic link; %s') % exc)
'''
path, filename = os.path.split(document_metadata_index.filename)
#Cleanup directory of dead stuff
@@ -86,9 +104,9 @@ def document_delete_fs_links(document):
os.removedirs(path)
except:
pass
'''
'''
'''
def next_available_filename(document, metadata_index, path, filename, extension, suffix=0):
target = filename
if suffix:
@@ -149,3 +167,4 @@ def do_recreate_all_links(raise_exception=True):
for warning in create_warnings:
warnings.append('%s: %s' % (document, warning))
return errors, warnings
'''