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minimize-manual.py: Followup with some cleanup, correct permissions

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This commit is contained in:
Julian Andres Klode 2018-09-18 09:15:42 +02:00
parent 9360135b2c
commit 2e9349c543
1 changed files with 31 additions and 27 deletions
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58
live-build/auto/minimize-manual.py Normal file → Executable file
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@ -1,48 +1,52 @@
#!/usr/bin/python3 #!/usr/bin/python3
"""Minimize the number of manually installed packages in the image. """Minimize the number of manually installed packages in the image.
Finds all manually meta packages and marks their dependencies as Finds all manually installed meta packages, and marks their dependencies
automatically installed. as automatically installed.
""" """
import apt
import sys import sys
import apt
def is_root(pkg): def is_root(pkg):
"""Check if the package is a root package (manually inst. meta)"""
return (pkg.is_installed and return (pkg.is_installed and
not pkg.is_auto_installed and not pkg.is_auto_installed and
(pkg.section == "metapackages" or (pkg.section == "metapackages" or
pkg.section.endswith("/metapackages"))) pkg.section.endswith("/metapackages")))
c = apt.Cache(rootdir=sys.argv[1] if len(sys.argv) > 1 else None) def main():
"""Main function"""
cache = apt.Cache(rootdir=sys.argv[1] if len(sys.argv) > 1 else None)
roots = set(pkg for pkg in cache if is_root(pkg))
workset = set(roots)
seen = set()
roots = set(pkg for pkg in c if is_root(pkg)) with cache.actiongroup():
workset = set(roots) while True:
seen = set() print("Iteration", file=sys.stderr)
to_proc = workset - seen
if not to_proc:
break
for pkg in sorted(to_proc):
print(" Visiting", pkg, file=sys.stderr)
with c.actiongroup(): if pkg not in roots:
while True: pkg.mark_auto()
print("Iteration", file=sys.stderr) for dep in (pkg.installed.dependencies +
to_proc = workset - seen pkg.installed.recommends):
if not to_proc: for bdep in dep.or_dependencies:
break for ver in bdep.target_versions:
for pkg in sorted(to_proc): if ver.package.is_installed:
print(" Visiting", pkg, file=sys.stderr) workset.add(ver.package)
# Mark every seen.add(pkg)
if pkg not in roots:
pkg.mark_auto()
for dep in pkg.installed.dependencies + pkg.installed.recommends: cache.commit()
if dep.rawtype not in ('Depends', 'PreDepends', 'Recommends'):
continue
for bdep in dep.or_dependencies:
for v in bdep.target_versions:
if v.package.is_installed:
workset.add(v.package)
seen.add(pkg)
c.commit() if __name__ == '__main__':
main()