#!/usr/bin/env python3
"""Ship original upstream license/notice texts without filename collisions."""
import json,shutil
from pathlib import Path
policy=json.loads(Path('debian/package-policy.json').read_text())
package=policy['packages'][0];dest=Path('debian')/package/'usr/share/doc'/package/'upstream-licenses'
files=[]
for p in Path('.').rglob('*'):
    if not p.is_file() or p.is_symlink():continue
    if p.parts[0] in ('obj-module','.git','.pc'):continue
    if p.parts[0]=='debian' and p.parts[:2]!=('debian','vendor'):continue
    n=p.name.upper()
    if n.startswith(('LICENSE','LICENCE','COPYING','NOTICE','COPYRIGHT')) or 'LICENSES' in p.parts:
        files.append(p)
for p in files:
    target=dest/p;target.parent.mkdir(parents=True,exist_ok=True);shutil.copyfile(p,target)
if not files:raise ValueError('No upstream license/notice files found')