def _delete_value(self, root, lines, node):
"""Delete value and return start possition deleted value"""
l1, c1, l2, c2 = node.span.start.line-1, node.span.start.column-1, \
node.span.end.line-1, node.span.end.column-1
l1, c1 = StructureChanger.skip_tar(lines, l1, c1, l2, c2)
StructureChanger.delete_structure(lines, l1, c1, l2, c2)
return l1, c1
def _add_key(self, root, lines, action):
"""Add key to abstract record"""
try:
node = root.get_node_at_path(action['parameters']['path'])
except:
return False
l1, c1, l2, c2 = StructureChanger.node_pos(node)
if node.implementation != DataNode.Implementation.mapping:
raise TransformationFileFormatError(
"Add path (" +
self._get_paths_str(action, 'destination_path') +
") must be abstract record")
key = action['parameters']['key']
if "value" in action['parameters']:
value = action['parameters']['value']
else:
value = None
if "type" in action['parameters']:
tag = action['parameters']['type']
else:
tag = None
if node.parent is None:
add = StructureChanger.add_key(key, 0, value, tag)
lines.insert(l1, add)
else:
indentation = re.search(r'^(\s*)(\S.*)$', lines[l1])
indentation = len(indentation.group(1)) + 2
add = StructureChanger.add_key(key, indentation, value, tag)
lines.insert(l1 + 1, add)
return True
def _rename_type(self, root, lines, action):
"""Rename type transformation"""
try:
node = root.get_node_at_path(action['parameters']['path'])
except:
return False
old = action['parameters']['old_name']
new = action['parameters']['new_name']
StructureChanger.change_tag(lines, node, old, new)
return True
def _change_value(self, root, lines, action):
"""Change value to speciffied"""
try:
node = root.get_node_at_path(action['parameters']['path'])
except:
return False
if node.implementation != DataNode.Implementation.scalar:
self._add_notification(
"Specified path '{0}', is not scalar type node, action is ignored"
.format(self._get_paths_str(action, 'path')),
self._Severity.warning, action, node)
return False
old = action['parameters']['old_value']
new = action['parameters']['new_value']
l1, c1, l2, c2 = StructureChanger.value_pos(node)
return StructureChanger.replace(lines, new, old, l1, c1, l2, c2)
def _replace_value(self, root, lines, action):
"""Rename type transformation"""
try:
node = root.get_node_at_path(action['parameters']['path'])
except:
return False
if node.implementation != DataNode.Implementation.scalar:
self._add_notification(
"Specified path '{0}', is not scalar type node, action is ignored"
.format(self._get_paths_str(action, 'path')),
self._Severity.warning, action, node)
return False
pattern = action['parameters']['pattern']
replacement = action['parameters']['replacement']
old = str(node.value)
new = re.sub(pattern, replacement, old)
if new != old:
l1, c1, l2, c2 = StructureChanger.value_pos(node)
return StructureChanger.replace(lines, new, old, l1, c1, l2, c2)
return False
def _add_array(self, root, lines, action):
"""Move key transformation"""
try:
parent2 = root.get_node_at_path(
action['parameters']['addition_path'])
except:
return False
if parent2.implementation != DataNode.Implementation.sequence:
raise TransformationFileFormatError(
"Specified addition path (" + self._get_paths_str(action, 'addition_path') + \
") is not array type node." )
if parent2.parent is None:
raise TransformationFileFormatError(
"Specified addition path can't be in root node")
try:
parent1 = root.get_node_at_path(
action['parameters']['source_path'])
except:
return False
if parent1.implementation != DataNode.Implementation.sequence:
raise TransformationFileFormatError(
"Specified source path (" + self._get_paths_str(action, 'path') + \
") is not array type node." )
if parent2 == parent1:
raise TransformationFileFormatError(
"Source and addition paths must be different (" +
self._get_paths_str(action, 'source_path') + ")")
sl1, sc1, sl2, sc2 = StructureChanger.value_pos(parent1)
sl2, sc2 = self._fix_end(lines, sl1, sc1, sl2, sc2)
al1, ac1, al2, ac2 = StructureChanger.value_pos(parent2)
al2, ac2 = self._fix_end(lines, al1, ac1, al2, ac2)
if (al1 >= sl1 and sl2 >= al2) or (sl1 >= al1 and al2 >= sl2):
raise TransformationFileFormatError(
"Source and addition nodes can't contains each other (" +
self._get_paths_str(action, 'source_path') + ")")
indentation1 = StructureChanger.get_indentation(lines, sl1)
al1, ac1, al2, ac2 = StructureChanger.add_comments(
lines, al1, ac1, al2, ac2)
add = StructureChanger.copy_structure(lines, al1, ac1, al2, ac2,
indentation1, False)
if sl2 < al1 or (sl2 == al1 and sl2 < ac1):
# addition after source, first delete
action['parameters']['path'] = action['parameters'][
'addition_path']
action['parameters']['deep'] = True
self._delete_key(root, lines, action)
self._add_comma(lines, sl1, sl2, sc2)
StructureChanger.paste_structure(lines, sl2, add, True)
if not (sl2 < al1 or (sl2 == al1 and sl2 < ac1)):
action['parameters']['path'] = action['parameters'][
'addition_path']
action['parameters']['deep'] = True
self._delete_key(root, lines, action)
return True
def _delete_key(self, root, lines, action):
"""Delete key transformation"""
try:
node = root.get_node_at_path(action['parameters']['path'])
except:
return False
if "deep" not in action[
'parameters'] or not action['parameters']['deep']:
if len(node.children_keys) > 0:
return False
l1, c1, l2, c2 = StructureChanger.node_pos(node)
anchors = []
for i in range(l1, l2 + 1):
if l1 == l2:
text = lines[l1][c1:c2]
elif i == l1:
text = lines[l1][c1:]
elif i == l2:
text = lines[l2][:c2]
else:
text = lines[i]
anchor = re.search(r'\s+&\s*(\S+)\s+', text)
if anchor is None:
anchor = re.search(r'\s+&\s*(\S+)$', text)
if anchor is not None:
anchors.append(anchor.group(1))
if len(anchors) > 0:
self._rewrite_first_ref(root, lines, anchors)
# try delete with comma after or prev
nl2, nc2 = self._next_spread(lines, l2, c2)
if nl2 == l2 and nc2 == c2:
l1, c1 = self._prev_spred(lines, l1, c1)
else:
l2 = nl2
c2 = nc2
# try exclude comments
l1, c1, l2, c2 = StructureChanger.leave_comments(lines, l1, c1, l2, c2)
l1, c1, l2, c2 = StructureChanger.add_delete_item_chars(
lines, l1, c1, l2, c2)
StructureChanger.delete_structure(lines, l1, c1, l2, c2)
return True
def _copy_tree_from_anchor(self,
lines,
anchor_node,
ref_node,
remove_anchor=False):
"""Copy tree structure from anchor node to node with reference"""
l1, c1, l2, c2 = anchor_node.span.start.line-1, anchor_node.span.start.column-1, \
anchor_node.span.end.line-1, anchor_node.span.end.column-1
l1, c1 = StructureChanger.skip_tar(lines, l1, c1, l2, c2)
hlpl1, hlpc1, l2, c2 = StructureChanger.add_comments(
lines, l1, c1, l2, c2)
dl1, dc1, dl2, dc2 = StructureChanger.node_pos(ref_node)
intend = re.search(r'^(\s*)(\S.*)$', lines[dl1])
intend = len(intend.group(1)) + 2
add = StructureChanger.copy_structure(lines, l1, c1, l2, c2, intend)
while dl1 <= dl2:
ref = re.search(r'^(.*\*' + anchor_node.anchor.value + r')(.*)$',
lines[dl1])
if ref is not None:
anchor = "&" + anchor_node.anchor.value
if remove_anchor:
anchor = ""
lines[dl1] = re.sub(r'\*' + anchor_node.anchor.value + r"\s+",
anchor + " ", lines[dl1])
lines[dl1] = re.sub(r'\*' + anchor_node.anchor.value + r"$",
anchor, lines[dl1])
if not ref.group(2).isspace() and len(ref.group(2)) > 0:
lines.insert(dl1 + 1, ref.group(2))
lines[dl1] = ref.group(1)
StructureChanger.paste_structure(lines, dl1, add, True, True)
break
dl1 += 1
def _scale_value(self, root, lines, action):
"""Multiply value by set scale"""
try:
node = root.get_node_at_path(action['parameters']['path'])
scale = float(action['parameters']['scale'])
except:
return False
if node.implementation != DataNode.Implementation.scalar:
self._add_notification(
"Specified path '{0}', is not scalar type node, action is ignored"
.format(self._get_paths_str(action, 'path')),
self._Severity.warning, action, node)
return False
try:
value = float(node.value)
except ValueError:
self._add_notification(
"Type of value in specified path '{0}', is not numeric, action is ignored"
.format(self._get_paths_str(action, 'path')),
self._Severity.warning, action, node)
return False
l1, c1, l2, c2 = StructureChanger.value_pos(node)
return StructureChanger.replace(lines, str(scale * value),
lines[l1][c1:c2], l1, c1, l2, c2)
def _move_key_forward(self, root, lines, action):
"""Move key forward"""
try:
parent = re.search(r'^(.*)/([^/]*)$', action['parameters']['path'])
node = root.get_node_at_path(action['parameters']['path'])
if parent is None:
raise TransformationFileFormatError(
"Cannot find parent path for path (" +
self._get_paths_str(action, 'path') + ")")
is_root = False
if len(parent.group(1)) == 0:
parent_node = root
is_root = True
else:
parent_node = root.get_node_at_path(parent.group(1))
except:
return False
l1, c1, l2, c2 = StructureChanger.node_pos(node)
pl1, pc1, pl2, pc2 = parent_node.span.start.line-1, parent_node.span.start.column-1, \
parent_node.span.end.line-1, parent_node.span.end.column-1
if parent_node.implementation != DataNode.Implementation.mapping:
raise TransformationFileFormatError(
"Parent of path (" + self._get_paths_str(action, 'path') +
") must be abstract record")
if is_root:
indentation1 = 0
pl1 = 0
pc1 = 0
else:
indentation1 = StructureChanger.get_indentation(lines, pl1) + 2
l1, c1, l2, c2 = StructureChanger.add_comments(lines, l1, c1, l2, c2)
add = StructureChanger.copy_structure(lines, l1, c1, l2, c2,
indentation1)
pl1, pc1 = StructureChanger.skip_tar(lines, pl1, pc1, pl2, pc2)
action['parameters']['deep'] = True
self._delete_key(root, lines, action)
StructureChanger.paste_structure(lines, pl1, add, pc1 != 0)
return True
def _move_key(self, root, lines, action):
"""Move key transformation"""
try:
parent1 = root.get_node_at_path(
action['parameters']['destination_path'])
raise TransformationFileFormatError(
"Destination path (" +
self._get_paths_str(action, 'destination_path') +
") already exist")
except:
pass
try:
parent1 = re.search(r'^(.*)/([^/]*)$',
action['parameters']['source_path'])
node1 = root.get_node_at_path(action['parameters']['source_path'])
except:
return False
try:
parent2 = re.search(r'^(.*)/([^/]*)$',
action['parameters']['destination_path'])
new_node = parent2.group(2)
node2 = root.get_node_at_path(parent2.group(1))
node_struct = []
except:
if action['parameters']['create_path'] and parent2 is not None:
node_struct, new_path = StructureChanger.copy_absent_path(
root, lines, parent2.group(1))
if len(node_struct) == 0:
raise TransformationFileFormatError(
"Can't constract destination path (" +
self._get_paths_str(action, 'destination_path') + ")")
try:
new_node = parent2.group(2)
parent2 = re.search(r'^(.*)/([^/]*)$',
new_path + "/" + new_node)
node2 = root.get_node_at_path(parent2.group(1))
except:
raise TransformationFileFormatError(
"Constracted path error(" +
self._get_paths_str(action, 'destination_path') + ")")
else:
raise TransformationFileFormatError(
"Parent of destination path (" +
self._get_paths_str(action, 'destination_path') +
") must exist")
sl1, sc1, sl2, sc2 = StructureChanger.node_pos(node1)
dl1, dc1, dl2, dc2 = StructureChanger.node_pos(node2)
if parent1.group(1) == parent2.group(1) and len(node_struct) == 0 and \
not action['parameters']['keep-source']:
# rename
i = node1.key.span.start.line - 1
lines[i] = re.sub(
parent1.group(2) + r"\s*:",
parent2.group(2) + ":", lines[i])
return True
if not action['parameters']['create_path']:
# check only existing path
if node2.implementation != DataNode.Implementation.mapping:
raise TransformationFileFormatError(
"Parent of destination path (" +
self._get_paths_str(action, 'destination_path') +
") must be abstract record")
if node1.parent is None:
indentation1 = 0
else:
indentation1 = StructureChanger.get_indentation(lines, dl1) + 2
sl1, sc1, sl2, sc2 = StructureChanger.add_comments(
lines, sl1, sc1, sl2, sc2)
add = StructureChanger.copy_structure(lines, sl1, sc1, sl2, sc2,
indentation1)
# rename key
i = node1.key.span.start.line - sl1 - 1
add[i] = re.sub(parent1.group(2) + r"\s*:", new_node + ":", add[i])
if action['parameters']['create_path'] and len(node_struct) > 0:
add = StructureChanger.paste_absent_path(add, node_struct)
if sl1 < dl1 and sl2 > dl1:
raise TransformationFileFormatError(
"Destination block (" +
self._get_paths_str(action, 'destination_path') +
") and source block (" +
self._get_paths_str(action, 'source_path') + " is overlapped")
if sl1 < dl2 or action['parameters']['keep-source']:
# source before dest, first copy
indentation2 = re.search(r'^(\s*)(\S.*)$', lines[dl2])
StructureChanger.paste_structure(lines, dl2, add,
len(indentation2.group(1)) < dc2)
action['parameters']['path'] = action['parameters']['source_path']
action['parameters']['deep'] = True
if not action['parameters']['keep-source']:
self._delete_key(root, lines, action)
else:
# source after dest, first delete
action['parameters']['path'] = action['parameters']['source_path']
action['parameters']['deep'] = True
self._delete_key(root, lines, action)
indentation2 = re.search(r'^(\s*)(\S.*)$', lines[dl2])
StructureChanger.paste_structure(lines, dl2, add,
len(indentation2.group(1)) < dc2)
return True
def transform(self, yaml, cfg):
"""transform yaml file"""
self.err = []
notification_handler = NotificationHandler()
loader = Loader(notification_handler)
root = loader.load(yaml)
lines = yaml.splitlines(False)
changes = False
text = cfg.get_curr_format_text()
root_input_type = get_root_input_type_from_json(text)
for aaction in self._transformation['actions']:
if changes:
root, lines = self.refresh(root_input_type, yaml,
notification_handler, loader)
changes = False
for action in self._replace_wildchars(root, aaction):
if changes:
root, lines = self.refresh(root_input_type, yaml,
notification_handler, loader)
if action['action'] == "delete-key":
changes = self._delete_key(root, lines, action)
elif action['action'] == "move-key":
changes = self._move_key(root, lines, action)
if changes and "set_type_path" in action['parameters']:
yaml = "\n".join(lines)
root, lines = self.refresh(root_input_type, yaml,
notification_handler,
loader)
changes = False
try:
node = root.get_node_at_path(
action['parameters']['set_type_path'])
if node.type is not None:
StructureChanger.change_tag(
lines, node, node.type.value,
action['parameters']['new_type'].strip())
else:
StructureChanger.add_tag(
lines, node,
action['parameters']['new_type'].strip())
changes = True
except:
pass
elif action['action'] == "rename-type":
changes = self._rename_type(root, lines, action)
elif action['action'] == "move-key-forward":
changes = self._move_key_forward(root, lines, action)
elif action['action'] == "change-value":
changes = self._change_value(root, lines, action)
elif action['action'] == "replace-value":
changes = self._replace_value(root, lines, action)
elif action['action'] == "merge-arrays":
changes = self._add_array(root, lines, action)
if 'destination_path' in action['parameters']:
if changes:
yaml = "\n".join(lines)
root, lines = self.refresh(root_input_type, yaml,
notification_handler,
loader)
action['parameters']['keep-source'] = False
changes = self._move_key(root, lines, action)
elif action['action'] == "add-key":
changes = self._add_key(root, lines, action)
elif action['action'] == "scale-value":
changes = self._scale_value(root, lines, action)
if changes:
yaml = "\n".join(lines)
yaml = "\n".join(lines)
return yaml