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-rw-r--r--pym/portage.py13
1 files changed, 12 insertions, 1 deletions
diff --git a/pym/portage.py b/pym/portage.py
index b8da8d9b6..d2edcf0f1 100644
--- a/pym/portage.py
+++ b/pym/portage.py
@@ -8037,6 +8037,7 @@ class dblink:
self._installed_instance = None
self.contentscache = None
self._contents_inodes = None
+ self._contents_basenames = None
def lockdb(self):
if self._lock_vdb:
@@ -8605,6 +8606,16 @@ class dblink:
if pkgfiles and destfile in pkgfiles:
return True
if pkgfiles:
+ basename = os.path.basename(destfile)
+ if self._contents_basenames is None:
+ self._contents_basenames = set(
+ os.path.basename(x) for x in pkgfiles)
+ if basename not in self._contents_basenames:
+ # This is a shortcut that, in most cases, allows us to
+ # eliminate this package as an owner without the need
+ # to examine inode numbers of parent directories.
+ return False
+
# Use stat rather than lstat since we want to follow
# any symlinks to the real parent directory.
parent_path = os.path.dirname(destfile)
@@ -8640,7 +8651,6 @@ class dblink:
p_path_list = self._contents_inodes.get(
(parent_stat.st_dev, parent_stat.st_ino))
if p_path_list:
- basename = os.path.basename(destfile)
for p_path in p_path_list:
x = os.path.join(p_path, basename)
if x in pkgfiles:
@@ -9106,6 +9116,7 @@ class dblink:
for dblnk in others_in_slot:
dblnk.contentscache = None
dblnk._contents_inodes = None
+ dblnk._contents_basenames = None
# If portage is reinstalling itself, remove the old
# version now since we want to use the temporary