build/bin/get_preserved_libs

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2014-11-02 09:42:47 +01:00
#!/usr/bin/python
import sys
from _emerge.actions import load_emerge_config
import portage.dep
settings, trees, mtimedb = load_emerge_config()
vardb = trees[settings["ROOT"]]["vartree"].dbapi
linkmap = vardb._linkmap
reg = vardb._plib_registry
reg.lock()
try:
plibdata = reg.getPreservedLibs()
if plibdata:
sys.stdout.write("# list of bumped libraries:\n")
for cpv, paths in plibdata.items():
sys.stdout.write("%s\n" % (cpv,))
for path in sorted(paths):
sys.stderr.write(" %s\n" % (path,))
if plibdata:
sys.stdout.write("# list of inverse deps:\n")
# taken from display_preserved_libs.py, Portage
linkmap.rebuild() # can raise CommandNotFound
consumer_map = {}
search_for_owners = set()
for cpv in plibdata:
internal_plib_keys = set(linkmap._obj_key(f) for f in plibdata[cpv])
for f in plibdata[cpv]:
if f in consumer_map:
continue
consumers = []
for c in linkmap.findConsumers(f):
# Filter out any consumers that are also preserved libs
# belonging to the same package as the provider.
if linkmap._obj_key(c) not in internal_plib_keys:
consumers.append(c)
consumers.sort()
consumer_map[f] = consumers
search_for_owners.update(consumers)
owners = {}
for f in search_for_owners:
owner_set = set()
for owner in linkmap.getOwners(f):
owner_dblink = vardb._dblink(owner)
if owner_dblink.exists():
owner_set.add(owner_dblink)
if owner_set:
owners[f] = owner_set
all_preserved = set()
all_preserved.update(*plibdata.values())
owners_map = {}
for cpv in plibdata:
sys.stdout.write("%s\n" % (cpv,))
samefile_map = {}
for f in plibdata[cpv]:
obj_key = linkmap._obj_key(f)
alt_paths = samefile_map.get(obj_key)
if alt_paths is None:
alt_paths = set()
samefile_map[obj_key] = alt_paths
alt_paths.add(f)
for alt_paths in samefile_map.values():
alt_paths = sorted(alt_paths)
for p in alt_paths:
sys.stderr.write(" - %s" % (p,))
f = alt_paths[0]
consumers = consumer_map.get(f, [])
consumers_non_preserved = [c for c in consumers
if c not in all_preserved]
if consumers_non_preserved:
# Filter the consumers that are preserved libraries, since
# they don't need to be rebuilt (see bug #461908).
consumers = consumers_non_preserved
for c in consumers:
owner_pkgs = []
if c in all_preserved:
# The owner is displayed elsewhere due to having
# its libs preserved, so distinguish this special
# case (see bug #461908).
owners_desc = "preserved"
else:
owner_cpvs = [x.mycpv for x in owners.get(c, [])]
owner_pkgs.extend(owner_cpvs)
owners_desc = ", ".join(owner_cpvs)
sys.stderr.write(" used by %s (%s)\n" % (c, owners_desc))
for owner_pkg in owner_pkgs:
cp_slot = "%s:%s" % (
portage.dep.dep_getkey("=" + owner_pkg),
vardb.aux_get(owner_pkg, ["SLOT"])[0]
)
obj = owners_map.setdefault(cp_slot, set())
obj.add(c)
sys.stdout.flush()
sys.stderr.flush()
if owners_map:
sys.stdout.write("# grouped list of rebuilds:\n")
for owner_pkg in sorted(owners_map.keys()):
owner_files = sorted(owners_map[owner_pkg])
sys.stdout.write("%s\n" % (owner_pkg,))
for owner_file in owner_files:
sys.stderr.write(" %s\n" % (owner_file,))
sys.stdout.flush()
sys.stderr.flush()
finally:
reg.unlock()