def is_producer(self, requested_output):
"""
Returns True if this rule is a producer of the requested output.
"""
try:
for o in self.products:
if o.match(requested_output):
return True
return False
except sre_constants.error as ex:
raise IOFileException("{} in wildcard statement".format(ex),
snakefile=self.snakefile,
lineno=self.lineno)
except ValueError as ex:
raise IOFileException("{}".format(ex),
snakefile=self.snakefile,
lineno=self.lineno)
def _update_item_wildcard_constraints(self, item):
if not (self.wildcard_constraints or self.workflow._wildcard_constraints):
return item
try:
return update_wildcard_constraints(
item, self.wildcard_constraints, self.workflow._wildcard_constraints
)
except ValueError as e:
raise IOFileException(str(e), snakefile=self.snakefile, lineno=self.lineno)
def _set_inoutput_item(self, item, output=False, name=None):
"""
Set an item to be input or output.
Arguments
item -- the item
inoutput -- either a Namedlist of input or output items
name -- an optional name for the item
"""
inoutput = self.output if output else self.input
if isinstance(item, str):
# add the rule to the dependencies
if isinstance(item, _IOFile) and item.rule:
self.dependencies[item] = item.rule
if output:
rule = self
if self.wildcard_constraints or self.workflow._wildcard_constraints:
try:
item = update_wildcard_constraints(
item, self.wildcard_constraints,
self.workflow._wildcard_constraints)
except ValueError as e:
raise IOFileException(
str(e),
snakefile=self.snakefile,
lineno=self.lineno)
else:
rule = None
if contains_wildcard_constraints(item) and self.workflow.mode != Mode.subprocess:
logger.warning(
"wildcard constraints in inputs are ignored")
# record rule if this is an output file output
_item = IOFile(item, rule=rule)
if is_flagged(item, "temp"):
if output:
self.temp_output.add(_item)
if is_flagged(item, "protected"):
if output:
self.protected_output.add(_item)
if is_flagged(item, "touch"):
if output:
self.touch_output.add(_item)
if is_flagged(item, "dynamic"):
if output:
self.dynamic_output.add(_item)
else:
self.dynamic_input.add(_item)
if is_flagged(item, "subworkflow"):
if output:
raise SyntaxError(
"Only input files may refer to a subworkflow")
else:
# record the workflow this item comes from
self.subworkflow_input[_item] = item.flags["subworkflow"]
inoutput.append(_item)
if name:
inoutput.add_name(name)
elif callable(item):
if output:
raise SyntaxError(
"Only input files can be specified as functions")
inoutput.append(item)
if name:
inoutput.add_name(name)
else:
try:
start = len(inoutput)
for i in item:
self._set_inoutput_item(i, output=output)
if name:
# if the list was named, make it accessible
inoutput.set_name(name, start, end=len(inoutput))
except TypeError:
raise SyntaxError(
"Input and output files have to be specified as strings or lists of strings.")
def _set_inoutput_item(self, item, output=False, name=None):
"""
Set an item to be input or output.
Arguments
item -- the item
inoutput -- a Namedlist of either input or output items
name -- an optional name for the item
"""
inoutput = self.output if output else self.input
# Check to see if the item is a path, if so, just make it a string
if isinstance(item, Path):
item = str(item)
if isinstance(item, str):
item = self.apply_default_remote(item)
# add the rule to the dependencies
if (isinstance(item, _IOFile) and item.rule
and item in item.rule.output):
self.dependencies[item] = item.rule
if output:
rule = self
if self.wildcard_constraints or self.workflow._wildcard_constraints:
try:
item = update_wildcard_constraints(
item, self.wildcard_constraints,
self.workflow._wildcard_constraints)
except ValueError as e:
raise IOFileException(str(e),
snakefile=self.snakefile,
lineno=self.lineno)
else:
rule = self
if contains_wildcard_constraints(
item) and self.workflow.mode != Mode.subprocess:
logger.warning(
"wildcard constraints in inputs are ignored")
# record rule if this is an output file output
_item = IOFile(item, rule=rule)
if is_flagged(item, "temp"):
if output:
self.temp_output.add(_item)
if is_flagged(item, "protected"):
if output:
self.protected_output.add(_item)
if is_flagged(item, "touch"):
if output:
self.touch_output.add(_item)
if is_flagged(item, "dynamic"):
if output:
self.dynamic_output.add(_item)
else:
self.dynamic_input.add(_item)
if is_flagged(item, "report"):
item.flags["report"] = os.path.join(
self.workflow.current_basedir, item.flags["report"])
if is_flagged(item, "subworkflow"):
if output:
raise SyntaxError(
"Only input files may refer to a subworkflow")
else:
# record the workflow this item comes from
sub = item.flags["subworkflow"]
if _item in self.subworkflow_input:
other = self.subworkflow_input[_item]
if sub != other:
raise WorkflowError(
"The input file {} is ambiguously "
"associated with two subworkflows "
"{} and {}.".format(item, sub, other),
rule=self)
self.subworkflow_input[_item] = sub
inoutput.append(_item)
if name:
inoutput.add_name(name)
elif callable(item):
if output:
raise SyntaxError(
"Only input files can be specified as functions")
inoutput.append(item)
if name:
inoutput.add_name(name)
else:
try:
start = len(inoutput)
for i in item:
self._set_inoutput_item(i, output=output)
if name:
# if the list was named, make it accessible
inoutput.set_name(name, start, end=len(inoutput))
except TypeError:
raise SyntaxError(
"Input and output files have to be specified as strings or lists of strings."
)