launch_mendeley.py

#!/usr/bin/env python

import sqlite3 as lite
import subprocess
import shutil
import os
from glob import glob
import pdb
from mendeleyfilesync import MendeleyDB, relative_file, directory_to_url

on_master = True

if os.name == 'posix':
    HOME = os.environ['HOME']
    data_dir = os.path.join(HOME, r'.local/share/data/Mendeley Ltd./Mendeley Desktop')
    file_path = r'/Data/johnbur/Dropbox/Library'
    on_master = False
elif os.name == 'nt':
    HOME = os.environ['LOCALAPPDATA']
    data_dir = os.path.join(HOME, r'/Mendeley Ltd/Mendeley Desktop')
    print HOME
    file_path = r'D:/johnbur/Dropbox/Library'
    on_master = True
else:
    raise IOError('Cannot Locate Database')

local_data = (r'Organiser/OrganiserLocation', file_path)


def change_os_paths(file_path):
    """
    changes file prefixes in database as defined bu file_path
    """
    with MendeleyDB(MENDELEY_DB, file_path) as mdb:

        mendeley_entries = set(mdb.document_files())

        for me_file in mendeley_entries:
            me_file.name = me_file.name.replace(mdb.org_url + u'/', '')

            # Do this only for existing files?
            #exists = relative_file(me_file)
            mdb.update_file(me_file)

    return mdb.org_organiser  # to save for reverting

if not on_master:
    MENDELEY_DB = glob(os.path.join(data_dir, '*www.mendeley.com.sqlite'))[0]
    MONITOR_DB = glob(os.path.join(data_dir, 'monitor.sqlite'))[0]
    shutil.copy(MENDELEY_DB, MENDELEY_DB + '.bak')
    shutil.copy(MONITOR_DB, MONITOR_DB + '.bak')
    shutil.copy(MONITOR_DB + '.linux', MONITOR_DB)

    original_organiser_dir = change_os_paths(file_path)

#    pdb.set_trace()
    ## Now run mendeley and wait for exit.
    command='mendeleydesktop.bin'
    subprocess.call([command, ''])

    ## When mendeley exits, change back to orginal settings
    ## open the database to make changes
    ___ = change_os_paths(original_organiser_dir)
    shutil.copy(MONITOR_DB, MONITOR_DB + '.linux')
    shutil.copy(MONITOR_DB + '.bak', MONITOR_DB)


else:

    command=r'C:\\Program Files (x86)\\Mendeley Desktop\\MendeleyDesktop.exe'
    subprocess.call([command, ''])

print 'okay, now done.'