initial commit

django/db/migrations/graph.pyi

@@ -0,0 +1,65 @@
+from django.db.migrations.migration import SwappableTuple
+from django.db.migrations.state import ProjectState
+from typing import (
+    Any,
+    Callable,
+    List,
+    Optional,
+    Tuple,
+    Union,
+)
+
+
+class DummyNode:
+    def __init__(self, key: Tuple[str, str], origin: Any, error_message: str) -> None: ...
+    def promote(self) -> None: ...
+    def raise_error(self): ...
+
+
+class MigrationGraph:
+    def __contains__(self, node: Union[SwappableTuple, Tuple[str, str]]) -> bool: ...
+    def __init__(self) -> None: ...
+    def __repr__(self) -> str: ...
+    def __str__(self) -> str: ...
+    def _generate_plan(self, nodes: List[Tuple[str, str]], at_end: bool) -> List[Tuple[str, str]]: ...
+    def _nodes_and_edges(self) -> Tuple[int, int]: ...
+    def add_dependency(
+        self,
+        migration: Any,
+        child: Tuple[str, str],
+        parent: Tuple[str, str],
+        skip_validation: bool = ...
+    ) -> None: ...
+    def add_dummy_node(self, key: Tuple[str, str], origin: Any, error_message: str) -> None: ...
+    def add_node(self, key: Tuple[str, str], migration: Any) -> None: ...
+    def backwards_plan(self, target: Union[Tuple[str, str], Node]) -> List[Tuple[str, str]]: ...
+    def clear_cache(self) -> None: ...
+    def ensure_not_cyclic(
+        self,
+        start: Union[Node, Tuple[str, str]],
+        get_children: Callable
+    ) -> None: ...
+    def forwards_plan(self, target: Tuple[str, str]) -> List[Tuple[str, str]]: ...
+    def leaf_nodes(self, app: Optional[str] = ...) -> List[Tuple[str, str]]: ...
+    def make_state(
+        self,
+        nodes: Optional[Tuple[str, str]] = ...,
+        at_end: bool = ...,
+        real_apps: List[str] = ...
+    ) -> ProjectState: ...
+    def remove_replaced_nodes(self, replacement: Tuple[str, str], replaced: List[Tuple[str, str]]) -> None: ...
+    def remove_replacement_node(self, replacement: Tuple[str, str], replaced: List[Tuple[str, str]]) -> None: ...
+    def root_nodes(self, app: Optional[str] = ...) -> List[Tuple[str, str]]: ...
+    def validate_consistency(self) -> None: ...
+
+
+class Node:
+    def __eq__(self, other: Tuple[str, str]) -> bool: ...
+    def __getitem__(self, item: int) -> str: ...
+    def __hash__(self) -> int: ...
+    def __init__(self, key: Tuple[str, str]) -> None: ...
+    def __lt__(self, other: Union[Node, Tuple[str, str]]) -> bool: ...
+    def add_child(self, child: Node) -> None: ...
+    def add_parent(self, parent: Node) -> None: ...
+    def ancestors(self) -> List[Tuple[str, str]]: ...
+    def descendants(self) -> List[Tuple[str, str]]: ...