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registry.py
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Tue, Aug 20, 11:15

registry.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2013, 2014, 2015 CERN.
#
# Invenio is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# Invenio 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
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Invenio; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
"""Implement registries for formatter."""
import os
from invenio.ext.registry import ModuleAutoDiscoverySubRegistry
from flask_registry import PkgResourcesDirDiscoveryRegistry, \
ModuleAutoDiscoveryRegistry, RegistryProxy
from invenio.utils.datastructures import LazyDict
format_elements = RegistryProxy(
'format_elements',
ModuleAutoDiscoverySubRegistry,
'format_elements'
)
format_templates_directories = RegistryProxy(
'format_templates_directories',
ModuleAutoDiscoveryRegistry,
'format_templates'
)
format_templates = RegistryProxy(
'format_templates',
PkgResourcesDirDiscoveryRegistry,
'.', registry_namespace=format_templates_directories
)
output_formats_directories = RegistryProxy(
'output_formats_directories',
ModuleAutoDiscoveryRegistry,
'output_formats'
)
output_formats = RegistryProxy(
'output_formats',
PkgResourcesDirDiscoveryRegistry,
'.', registry_namespace=output_formats_directories
)
template_context_functions = RegistryProxy(
'template_context_functions',
ModuleAutoDiscoverySubRegistry,
'template_context_functions'
)
def create_format_templates_lookup():
"""Create format templates."""
out = {}
def _register(path, level=1):
if level > 4:
return
normpath = os.path.normpath(path)
if os.path.isdir(normpath):
for p in os.listdir(normpath):
_register(os.path.join(normpath, p), level=level+1)
else:
parts = normpath.split(os.path.sep)
out[os.path.sep.join(parts[-level:])] = normpath
for t in reversed(format_templates):
_register(t)
return out
format_templates_lookup = LazyDict(create_format_templates_lookup)
def create_output_formats_lookup():
"""Create output formats."""
out = {}
for f in output_formats:
of = os.path.basename(f)
if of in out:
continue
out[of] = f
return out
output_formats_lookup = LazyDict(create_output_formats_lookup)

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