parse deleted mountpoints

Related: https://pagure.io/koji/issue/387

koji/tasks.py

@@ -37,9 +37,13 @@ def scan_mounts(topdir):
     mplist = []
     topdir = os.path.normpath(topdir)
     fo = open('/proc/mounts', 'r')
+    logger = logging.getLogger("koji.build")
     for line in fo.readlines():
         path = line.split()[1]
         if path.startswith(topdir):
+            if path.endswith('\040(deleted)'):
+                path = path[:-10]
+                logger.warning('Found deleted mountpoint: %s' % path)
             mplist.append(path)
     fo.close()
     #reverse sort so deeper dirs come first

tests/test_tasks.py

@@ -20,7 +20,7 @@ def get_fake_mounts_file():
         'proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0\n'
         'devtmpfs /dev devtmpfs rw,seclabel,nosuid,size=238836k,nr_inodes=59709,mode=755 0 0\n'
         'securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0\n'
-        'tmpfs /dev/shm tmpfs rw,seclabel,nosuid,nodev 0 0\n'
+        'tmpfs /dev/shm\040(deleted) tmpfs rw,seclabel,nosuid,nodev 0 0\n'
         'devpts /dev/pts devpts rw,seclabel,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0\n'
         'tmpfs /run tmpfs rw,seclabel,nosuid,nodev,mode=755 0 0\n'
         'tmpfs /sys/fs/cgroup tmpfs ro,seclabel,nosuid,nodev,noexec,mode=755 0 0\n'