"""Module which contains all spells that check something in a file
(format-independently)."""
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from pyffi.spells import Spell
class SpellRead(Spell):
"""A spell which does nothing, besides reading the file."""
SPELLNAME = "check_read"
READONLY = True
def dataentry(self):
# prevent recursing into the tree
return False
class SpellReadWrite(SpellRead):
"""A spell which writes the data to a temporary file (essentially,
it is like L{SpellRead} but it forces --dry-run and sets READONLY to
``False``.
"""
SPELLNAME = "check_readwrite"
READONLY = False
changed = True # we want it to write the file back
@classmethod
def toastentry(cls, toaster):
# force dry run
toaster.options["dryrun"] = True
# the spell always acts
return True
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