git-importer/lib/flat_walker.py
2022-11-02 15:22:24 +01:00

53 lines
2.0 KiB
Python

from lib.abstract_walker import AbstractWalker
class FlatNode:
def __init__(self, branch, commit, parent1=None, parent2=None) -> None:
self.branch = branch
self.commit = commit
self.parent1 = parent1
self.parent2 = parent2
def __str__(self) -> str:
p1_str = f" p1:{self.parent1.short_string()}" if self.parent1 else ""
p2_str = f" p2:{self.parent2.short_string()}" if self.parent2 else ""
return f"{self.branch} c:{self.commit.short_string()}{p1_str}{p2_str}"
class FlatTreeWalker(AbstractWalker):
"""While walking the tree, record the commits to do one after the other. These
FlatNodes are in the end in the flats array."""
def __init__(self, rebase_devel=False) -> None:
super().__init__()
self.flats = []
# the rebase_devel won't work as such as rebasing the branch needs an explicit action
self.rebase_devel = rebase_devel
# remember the last merge point so we can know the parent of it for the root of the sources
self.last_merge = None
def add(self, branch, commit, parent1=None, parent2=None):
self.flats.append(FlatNode(branch, commit, parent1, parent2))
def handle_source_node(self, node) -> None:
if self.rebase_devel and node.parent and node.parent.merged_into:
self.add("devel", node.revision, node.parent.merged_into.revision)
elif node.parent:
self.add("devel", node.revision, node.parent.revision)
elif self.last_merge:
self.add("devel", node.revision, self.last_merge.parent.revision)
def call(self, node, is_source) -> None:
if is_source:
self.handle_source_node(node)
return
if not node.parent:
self.add("factory", node.revision)
return
if not node.merged:
self.add("factory", node.revision, node.parent.revision)
return
self.add("factory", node.revision, node.parent.revision, node.merged.revision)
self.last_merge = node