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from pathlib import Path
from .writer import Writer
from .state import StateFile, FileState
class Resolver:
def __init__(self,
applydir,
writer: Writer,
state: StateFile,
override: bool):
self.applydir = Path(applydir)
self.writer = writer
self.override = override
self.state = state
def check_parent(self, path: Path, modulename):
"""
Check if parents exists, and if we created them mark them
with module name
"""
parent = path.parent
exists = parent.exists()
if (not exists) or parent in self.state.dirs:
self.check_parent(parent, modulename)
# Add to state
self.state.add_dir(parent, modulename)
if not exists:
self.writer.create_dir(parent)
def do_link(self, module, ppath: Path):
dest = Path(self.applydir, ppath)
dest_state = FileState.check_location(dest)
if not self.override and not dest_state.can_write():
# Check if it's a pointer to the correct location
raise Exception(f"Destination {ppath} already exists")
# Save the link in the statefile
self.state.add_link(dest, module)
self.check_parent(dest, module)
target_abs = Path.cwd().joinpath(Path(module, ppath))
if dest_state == FileState.Owned and dest_state.link_intact()\
and dest_state.links_to() == target_abs:
return
if dest_state != FileState.Unused and self.override:
self.writer.delete(dest)
self.writer.create_link(target_abs, dest)
def do_folder_link(self, module, ppath: Path) -> bool:
self.do_link(module, ppath)
return True
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