Set and restore umask to ensure lockfiles are atomically created with mode 0664.

Using the default 0022 yields lock files with g-w, so trying to flock(2)
from a different user failed.

1 files changed, 2 insertions, 0 deletions

diff --git a/webmap-import b/webmap-import
index 1d3f4ec..80f918e 100755
--- a/webmap-import
+++ b/webmap-import
@@ -518,6 +518,7 @@ def lockSourcePaths(layerdefs : dict[str,Any], lockdir: str) -> dict[str,int]:
     time) to reduce the time during which the sources prevented from being
     updated/downloaded, but their is some value in having consistency across the
     whole import process."""
+    umask = os.umask(0o002)
     lockdir_fd = os.open(lockdir, O_RDONLY|O_CLOEXEC|O_PATH|O_DIRECTORY)
     try:
         ret = {}
@@ -537,6 +538,7 @@ def lockSourcePaths(layerdefs : dict[str,Any], lockdir: str) -> dict[str,int]:
             os.close(lockdir_fd)
         except (OSError, ValueError):
             logging.exception('Could not close lockdir')
+        os.umask(umask)
 
 def releaseSourcePathLocks(lock_fds : dict[str,int]) -> None:
     """Release shared locks on the source paths.  Closed FDs are removed from