#19236: Lock mirror_list file in MirrorList.__init__
-------------------------------------+-------------------------------------
       Reporter:  jdemeyer           |        Owner:
           Type:  enhancement        |       Status:  new
       Priority:  major              |    Milestone:  sage-6.9
      Component:  build              |   Resolution:
       Keywords:                     |    Merged in:
        Authors:  Jeroen Demeyer     |    Reviewers:
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/jdemeyer/lock_mirror_list_file_in_mirrorlist___init__|  
541fd96f35f145fc0707b1537adcb3151db3fd1e
   Dependencies:                     |     Stopgaps:
-------------------------------------+-------------------------------------
Changes (by vbraun):

 * commit:   => 541fd96f35f145fc0707b1537adcb3151db3fd1e


Comment:

 Not all network file systems support locking, in which case this will fail
 with ENOLCK. E.g. nfs, depending on version & configuration.

 The most portable solution would be
 https://github.com/openstack/pylockfile/blob/master/lockfile/mkdirlockfile.py

 Just ignoring ENOLCK is probably good enough.
 ----
 New commits:
 
||[http://git.sagemath.org/sage.git/commit/?id=541fd96f35f145fc0707b1537adcb3151db3fd1e
 541fd96]||{{{Lock the mirror_list file}}}||

--
Ticket URL: <http://trac.sagemath.org/ticket/19236#comment:2>
Sage <http://www.sagemath.org>
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