def resolve(self, context={}):
"""We allow variables to be used for all arguments; this function
resolves all data against a given context;
This is a separate method as the management command must have
the ability to check if the tag can be resolved without a context.
"""
def resolve_var(x):
if x is None:
return None
else:
try:
return template.Variable(x).resolve(context)
except template.VariableDoesNotExist:
# Django seems to hide those; we don't want to expose
# them either, I guess.
raise
def resolve_bundle(name):
# If a bundle with that name exists, use it. Otherwise,
# assume a filename is meant.
try:
return get_env()[name]
except KeyError:
return name
return self.BundleClass(
*[resolve_bundle(resolve_var(f)) for f in self.files],
**{'output': resolve_var(self.output),
'filters': resolve_var(self.filters),
'debug': parse_debug_value(resolve_var(self.debug))})
def resolve(self, context={}):
"""We allow variables to be used for all arguments; this function
resolves all data against a given context;
This is a separate method as the management command must have
the ability to check if the tag can be resolved without a context.
"""
def resolve_var(x):
if x is None:
return None
else:
try:
return template.Variable(x).resolve(context)
except template.VariableDoesNotExist:
# Django seems to hide those; we don't want to expose
# them either, I guess.
raise
def resolve_bundle(name):
# If a bundle with that name exists, use it. Otherwise,
# assume a filename is meant.
try:
return get_env()[name]
except KeyError:
return name
return self.BundleClass(
*[resolve_bundle(resolve_var(f)) for f in self.files], **{
'output': resolve_var(self.output),
'filters': resolve_var(self.filters),
'debug': parse_debug_value(resolve_var(self.debug))
})
def parse_debug_value(value):
"""Django templates do not know what a boolean is, and anyway we need to
support the 'merge' option."""
try:
from webassets.env import parse_debug_value
return parse_debug_value(value)
except ValueError:
raise template.TemplateSyntaxError(
'"debug" argument must be one of the strings '
'"true", "false" or "merge", not "%s"' % value)
def parse_debug_value(value):
"""Django templates do not know what a boolean is, and anyway we need to
support the 'merge' option."""
try:
from webassets.env import parse_debug_value
return parse_debug_value(value)
except ValueError:
raise template.TemplateSyntaxError(
'"debug" argument must be one of the strings '
'"true", "false" or "merge", not "%s"' % value)
def resolve(self, context={}):
"""We allow variables to be used for all arguments; this function
resolves all data against a given context.
This is a separate method as the management command must have
the ability to check if the tag can be resolved without a context.
"""
def resolve_var(x):
if x is None:
return None
else:
try:
return template.Variable(x).resolve(context)
except template.VariableDoesNotExist:
# Django seems to hide those; we don't want to expose
# them either, I guess.
raise
def resolve_depends(x):
# Adapter to parse django template tags for depends.
# into a webassets compabitble list if multiple depends is passed.
# Django templates support depends in a (comma delimited form. e.g.,
#
# {% assets filters="jsmin", output="path/to/file.js", depends="watchfile.js,second/watch/file.js" "projectfile.js" %}
value = resolve_var(x)
if isinstance(value, six.text_type):
value = value.split(',')
return value
def resolve_bundle(name):
# If a bundle with that name exists, use it. Otherwise,
# assume a filename is meant.
try:
return get_env()[name]
except KeyError:
return name
return self.BundleClass(
*[resolve_bundle(resolve_var(f)) for f in self.files],
**{'output': resolve_var(self.output),
'filters': resolve_var(self.filters),
'depends': resolve_depends(self.depends),
'debug': parse_debug_value(resolve_var(self.debug))})
