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#!/usr/bin/python3
"""Check the archive for missing dependencies"""
import apt_pkg
def fmt_dep(dep):
"""Format a Dependency object [of apt_pkg] as a string."""
ret = dep.target_pkg.name
if dep.target_ver:
ret += f" ({dep.comp_type} {dep.target_ver})"
return ret
def check_version(pkgver):
"""Check the version of the package"""
missing = []
for or_group in pkgver.depends_list.get(
"Pre-Depends", []
) + pkgver.depends_list.get("Depends", []):
if not any(dep.all_targets() for dep in or_group):
# If none of the or-choices can be satisfied, add it to missing
missing.append(or_group)
if missing:
print("Package:", pkgver.parent_pkg.name)
print("Version:", pkgver.ver_str)
print("Missing:")
print(
", ".join(" | ".join(fmt_dep(dep) for dep in or_group))
for or_group in missing
)
print()
def main():
"""The main function."""
apt_pkg.init_config()
apt_pkg.init_system()
cache = apt_pkg.Cache()
for pkg in sorted(cache.packages, key=lambda pkg: pkg.name):
# pkg is from a list of packages, sorted by name.
for version in pkg.version_list:
# Check every version
for pfile, _ in version.file_list:
if (
pfile.origin == "Debian"
and pfile.component == "main"
and pfile.archive == "unstable"
):
# We only want packages from Debian unstable main.
check_version(version)
break
if __name__ == "__main__":
main()
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