class Delete(Command):
"""Command class to delete patches
"""
deleting_patch = Signal()
deleted_patch = Signal()
def __init__(self, cwd, quilt_pc, quilt_patches):
super(Delete, self).__init__(cwd)
self.quilt_pc = Directory(quilt_pc)
self.quilt_patches = Directory(quilt_patches)
self.db = Db(quilt_pc)
self.series = Series(quilt_patches)
self.pop = Pop(cwd, quilt_pc)
def _delete_patch(self, patch, remove=False, backup=False):
if self.series.is_empty():
raise NoPatchesInSeries(self.series)
if not self.series.is_patch(patch):
raise UnknownPatch(self.series, patch)
applied = self.db.top_patch() == patch
self.deleting_patch(patch, applied)
if applied:
self.pop._unapply_patch(patch)
self.db = self.pop.db
self.db.save()
self.series.remove_patch(patch)
self.series.save()
patch_file = self.quilt_patches + File(patch.get_name())
if remove:
if backup:
patch_file.copy(File(patch_file.get_name() + "~"))
patch_file.delete_if_exists()
self.deleted_patch(patch)
def delete_next(self, remove=False, backup=False):
""" Delete next patch after the topmost applied patch
If remove is True the patch file will also be removed. If remove and
backup are True a copy of the deleted patch file will be made.
"""
patch = self.db.top_patch()
if not patch:
raise NoAppliedPatch(self.db)
after = self.db.patch_after(patch)
if not after:
raise QuiltError("No next patch")
self._delete_patch(after, remove=remove, backup=backup)
def delete_patch(self, patch_name=None, remove=False, backup=False):
""" Delete specified patch from the series
If remove is True the patch file will also be removed. If remove and
backup are True a copy of the deleted patch file will be made.
"""
if patch_name:
patch = Patch(patch_name)
else:
patch = self.db.top_patch()
if not patch:
raise NoAppliedPatch(self.db)
self._delete_patch(patch, remove=remove, backup=backup)
