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Dropbox rom syncing script for retropie console
#!/usb/bin/env python
import os
import dropbox
import shutil
import zipfile
# Create a dropbox app and obtain App Key and Secret Key. Specify a folder
# Create a folder called romsync in your specified Dropbox app folder
# Store Dropbox App Key and Secret Key in system environment variables
app_key = os.getenv('DROPBOX_ROMSYNC_APP_KEY')
app_secret = os.getenv('DROPBOX_ROMSYNC_SECRET_KEY')
DEBUG = 0
CFG_DEFAULT = os.path.join(os.getenv('HOME'), '.romsync')
# A Config object to store and load settings
class Config(object):
settings = {}
path = ''
def __init__(self, path=CFG_DEFAULT):
self.path = path
self.load()
# Return value of setting
def get(self, key):
return self.settings[key]
# Update the cursor
def set_cursor(self, cursor):
self.settings['cursor'] = cursor
# Write settings to config
def save(self):
open(self.path, 'w').close() # Flush config before writing
with open(self.path, 'w') as cfg:
for key in self.settings:
cfg.write(key + '=' + self.settings[key] + '\n')
# Load settings from config
# return: True if config exists, False otherwise
def load(self):
if os.path.isfile(self.path):
with open(self.path, 'r') as cfg:
for line in cfg:
key = line.replace(" ", "").split('=')[0]
value = line.replace(" ", "").split('=')[1].rstrip()
self.settings[key] = value
return True
else:
with open(self.path, 'w') as cfg:
# Generate authorization code
flow = dropbox.client.DropboxOAuth2FlowNoRedirect(app_key, app_secret)
authorize_url = flow.start()
print('1. Go to: ' + authorize_url)
print('2. Click "Allow" (you might have to log in first)')
print('3. Copy the authorization code.')
code = raw_input('Enter the authorization code here: ').strip()
local_path = raw_input('Enter your local roms directory: ')
access_token, user_id = flow.finish(code)
# Write default settings to config
cfg.write('access_token=' + access_token + '\n')
cfg.write('db_roms=/romsync\n')
cfg.write('local_roms=' + local_path + '\n')
cfg.write('cursor= ' + '\n')
return False
# Download/remove files and directories
# return: dictionary of modified files
def delta_sync(client, delta, config):
dirs = []
files = []
file_change = {'added': [], 'removed': []}
entries = delta['entries']
local_path = config.get('local_roms')
db_path = config.get('db_roms')
for e in entries:
path = e[0].replace(db_path, local_path)
if e[1] is None:
try:
if e[1]['is_dir']:
if len(path) > 0:
os.makedirs(path)
else:
out = open(path, 'wb')
with client.get_file(e[1]['path']) as rom:
out.write(rom.read())
file_change['added'].append(path.replace(local_path, ''))
if out.endswith('.zip'):
z = zipfile.ZipFile(out)
z.extractall(path)
z.close()
del z
os.unlink(out)
print out.name + " extracted and deleted"
except:
if DEBUG:
print(path, ' already exists')
else:
try:
if os.path.isdir(path):
shutil.rmtree(path)
for child in os.listdir(path):
file_change['removed'].append(child)
else:
os.remove(path)
file_change['removed'].append(path.replace(local_path, ''))
except:
if DEBUG:
print(path, ' does not exist')
return file_change
def main():
config = Config()
config_exists = config.load()
# Get client
client = dropbox.client.DropboxClient(config.get('access_token'))
delta = client.delta(path_prefix=config.get('db_roms'), cursor=config.get('cursor'))
if DEBUG:
print(delta)
# Sync files
# Report added and removed files
if len(delta['entries']) > 0:
print('Syncing roms...')
file_change = delta_sync(client, delta, config)
added = len(file_change['added'])
removed = len(file_change['removed'])
if added > 0:
print('\n' + 'Fetched %s rom(s)' % str(added))
for entry in file_change['added']:
rom = entry.split(os.sep)
print(rom[0] + ' - ' + rom[1])
if removed > 0:
print('\n' + 'Removed %s rom(s)' % str(removed))
for entry in file_change['removed']:
print(entry)
print('')
else:
print('No need to sync')
# Update config with new cursor
config.set_cursor(delta['cursor'])
config.save()
if __name__ == "__main__":
main()
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