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from typing import Mapping, Sequence
def mergedefaults(a, b):
for k, v in b.items():
if k in a:
if isinstance(v, Mapping):
new = v.copy()
new.update(a[k])
a[k] = new
elif isinstance(v, Sequence):
a[k] = v + a[k]
else:
a[k] = v
return a
def add_dicts(a, b):
# currently unused
new = {}
for k, v in b.items():
if k in a:
# the docco isn’t clear on this but it’s better to overwrite strings
if isinstance(v, str):
new[k] = b[k]
elif isinstance(v, Mapping):
new[k] = add_dicts(a[k], b[k])
elif isinstance(v, Sequence):
new[k] = a[k] + b[k]
else:
new[k] = v
return new
def print_vars(target, kv, names):
for name in names:
if name in kv:
print(f"{target}_{name.upper():<8} = {' '.join(kv[name])}")
import re
from functools import lru_cache
from pathlib import Path
from debian.deb822 import Deb822
from debian.changelog import Changelog
from debian.debian_support import Version
@lru_cache(maxsize=None)
def deb_version():
changelog = Path('debian/changelog')
if changelog.exists():
try:
with changelog.open() as f:
ch = Changelog(f, max_blocks=1)
return ch.version
except:
pass
return None
def library_pkgs():
_, _, lib_pkgs = parse_control()
return lib_pkgs
def mangle_lib(lib: str) -> str:
# add a dash if there is a number before .so
lib = re.sub(r'([0-9])\.so$', r'\1-', lib)
# drop .so
lib = re.sub(r'\.so$', '', lib)
return lib.replace('_', '-').lower()
def match_libs(libs):
pkg_ver = deb_version()
if pkg_ver:
pkg_ver = '.'.join(pkg_ver.upstream_version.split('.')[:3])
lib_pkgs = sorted(library_pkgs())
mangled_libs = [(lib, mangle_lib(lib)) for lib in sorted(libs)]
for lib, mangled_lib in mangled_libs:
for pkg in lib_pkgs:
if pkg.startswith(mangled_lib):
rest = pkg.replace(mangled_lib, '', 1)
if rest.isdecimal():
yield (lib, rest, pkg_ver if pkg_ver.startswith(rest) else rest)
break
@lru_cache(maxsize=None)
def parse_control():
control = Path('debian/control')
if control.exists():
try:
with control.open() as f:
bin_pkgs = [p['Package'] for p in Deb822.iter_paragraphs(f) if 'Package' in p]
dev_pkgs = [p for p in bin_pkgs if p.startswith('lib') and p.endswith('-dev')]
lib_pkgs = [p for p in bin_pkgs if p.startswith('lib') and not p.endswith('-dev')]
return bin_pkgs, dev_pkgs, lib_pkgs
except:
pass
return [], [], []
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