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from __future__ import unicode_literals
import os
from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
from django.template.utils import InvalidTemplateEngineError
from appconf import AppConf
class CompressorConf(AppConf):
# Main switch
ENABLED = not settings.DEBUG
# Allows changing verbosity from the settings.
VERBOSE = False
# GET variable that disables compressor e.g. "nocompress"
DEBUG_TOGGLE = None
# the backend to use when parsing the JavaScript or Stylesheet files
PARSER = 'compressor.parser.AutoSelectParser'
OUTPUT_DIR = 'CACHE'
STORAGE = 'compressor.storage.CompressorFileStorage'
CSS_COMPRESSOR = 'compressor.css.CssCompressor'
JS_COMPRESSOR = 'compressor.js.JsCompressor'
URL = None
ROOT = None
CSS_FILTERS = ['compressor.filters.css_default.CssAbsoluteFilter']
CSS_HASHING_METHOD = 'mtime'
JS_FILTERS = ['compressor.filters.jsmin.JSMinFilter']
PRECOMPILERS = (
# ('text/coffeescript', 'coffee --compile --stdio'),
# ('text/less', 'lessc {infile} {outfile}'),
# ('text/x-sass', 'sass {infile} {outfile}'),
# ('text/stylus', 'stylus < {infile} > {outfile}'),
# ('text/x-scss', 'sass --scss {infile} {outfile}'),
)
CACHEABLE_PRECOMPILERS = ()
CLOSURE_COMPILER_BINARY = 'java -jar compiler.jar'
CLOSURE_COMPILER_ARGUMENTS = ''
YUI_BINARY = 'java -jar yuicompressor.jar'
YUI_CSS_ARGUMENTS = ''
YUI_JS_ARGUMENTS = ''
YUGLIFY_BINARY = 'yuglify'
YUGLIFY_CSS_ARGUMENTS = '--terminal'
YUGLIFY_JS_ARGUMENTS = '--terminal'
CLEAN_CSS_BINARY = 'cleancss'
CLEAN_CSS_ARGUMENTS = ''
DATA_URI_MAX_SIZE = 1024
# the cache backend to use
CACHE_BACKEND = None
# the dotted path to the function that creates the cache key
CACHE_KEY_FUNCTION = 'compressor.cache.simple_cachekey'
# rebuilds the cache every 30 days if nothing has changed.
REBUILD_TIMEOUT = 60 * 60 * 24 * 30 # 30 days
# the upper bound on how long any compression should take to be generated
# (used against dog piling, should be a lot smaller than REBUILD_TIMEOUT
MINT_DELAY = 30 # seconds
# check for file changes only after a delay
MTIME_DELAY = 10 # seconds
# enables the offline cache -- also filled by the compress command
OFFLINE = False
# invalidates the offline cache after one year
OFFLINE_TIMEOUT = 60 * 60 * 24 * 365 # 1 year
# The context to be used when compressing the files "offline"
OFFLINE_CONTEXT = {}
# The name of the manifest file (e.g. filename.ext)
OFFLINE_MANIFEST = 'manifest.json'
# The Context to be used when TemplateFilter is used
TEMPLATE_FILTER_CONTEXT = {}
# Returns the Jinja2 environment to use in offline compression.
def JINJA2_GET_ENVIRONMENT():
alias = 'Jinja2'
try:
from django.template.loader import _engine_list
engines = _engine_list(alias)
if engines:
engine = engines[0]
return engine.env
except InvalidTemplateEngineError:
raise InvalidTemplateEngineError(
"Could not find config for '{}' "
"in settings.TEMPLATES. "
"COMPRESS_JINJA2_GET_ENVIRONMENT() may "
"need to be defined in settings".format(alias))
except ImportError:
return None
class Meta:
prefix = 'compress'
def configure_root(self, value):
# Uses Django's STATIC_ROOT by default
if value is None:
value = settings.STATIC_ROOT
if value is None:
raise ImproperlyConfigured('COMPRESS_ROOT defaults to ' +
'STATIC_ROOT, please define either')
return os.path.normcase(os.path.abspath(value))
def configure_url(self, value):
# Uses Django's STATIC_URL by default
if value is None:
value = settings.STATIC_URL
if not value.endswith('/'):
raise ImproperlyConfigured("URL settings (e.g. COMPRESS_URL) "
"must have a trailing slash")
return value
def configure_cache_backend(self, value):
if value is None:
value = 'default'
return value
def configure_offline_context(self, value):
if not value:
value = {'STATIC_URL': settings.STATIC_URL}
return value
def configure_template_filter_context(self, value):
if not value:
value = {'STATIC_URL': settings.STATIC_URL}
return value
def configure_precompilers(self, value):
if not isinstance(value, (list, tuple)):
raise ImproperlyConfigured("The COMPRESS_PRECOMPILERS setting "
"must be a list or tuple. Check for "
"missing commas.")
return value
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