I'm under Ubuntu 12.04 with LibreOffice 4.3

When I open an ODS file with LibreOffice, the file “.~Lock.Main courante.ods#” synchronizes and gets directly into the trash.

Hi,

There is a set of prefixes / suffixes that should be ignored by Drive:

DEFAULT_IGNORED_SUFFIXES = [
    '~',  # editor buffers
    '.swp',  # vim swap files
    '.lock',  # some process use file locks
    '.LOCK',  # other locks
    '.part',  # partially downloaded files
]

DEFAULT_IGNORED_PREFIXES = [
    '.',  # hidden Unix files
    '~$',  # Windows lock files
    'Thumbs.db',  # Thumbnails files
]

Strange that in your case the .lock file is uploaded to the server.

In my case, under Ubuntu, when editing an ODT file with LibreOffice, the temp file is named .~lock.Test.odt#, so it is ignored because it starts with a dot (.)

What is your OS and version of Nuxeo Drive?

Note that for now you cannot customize these prefixes / suffixes as they're hardcoded in the client code, yet this improvement is planned and tracked by NXDRIVE-158.