def access_resources(*keys, short_circuit_fail=False): # TODO: consistency with if and brackets
"""Access the resources identified by the given keywords.
Return a list of booleans for the success of each resource access.
Set the list element to True if access was successful and False otherwise."""
success = []
global map_head, mapping
for key in keys:
try:
if key == '.psyignore':
gnc.access('r', '.psyignore')
elif key == 'config':
gnc.access('r+', 'config')
elif key == 'history':
gnc.access('r+', 'history')
elif key == 'mapping':
gnc.access('r+', 'map_head')
new_map = gnc.db['map_head'].readline().strip()
if mapping is None or mapping.name != new_map:
if not release_resources('mapping'):
raise PermissionError('cannot close previous mapping')
gnc.access_db('mapping', 'mappings/' + new_map + '.db')
mapping = SqlMapping('mapping', new_map)
elif key == 'lindex':
if mapping is None:
raise FileNotFoundError('no mapping loaded')
if mapping.lindex_name is None:
raise FileNotFoundError('no lindex specified')
if mapping.lindex is None or mapping.lindex.name != mapping.lindex_name:
release_resources('lindex')
gnc.access_db('lindex', 'indexes/local/' + mapping.lindex_name + '.db')
mapping.lindex = SqlIndex('lindex', mapping.lindex_name)
elif key == 'rindex':
if mapping is None:
raise FileNotFoundError('no mapping loaded')
if mapping.rindex_name is None:
raise FileNotFoundError('no rindex specified')
if mapping.rindex is None or mapping.rindex.name != mapping.rindex_name:
release_resources('rindex')
gnc.access_db('rindex', 'indexes/remote/' + mapping.rindex_name + '.db')
mapping.rindex = SqlIndex('rindex', mapping.rindex_name)
elif key == 'remote':
if mapping is None:
raise FileNotFoundError('no mapping loaded')
if mapping.rindex_name is None:
raise FileNotFoundError('no rindex specified')
capcom.access_remote(mapping.rindex_name)
else:
gnc.access('r+', key)
success.append(True)
except (OSError, sqlite3.DatabaseError) as err:
logging.warning('access_resources(' + key + '): ' + str(err))
success.append(False)
if short_circuit_fail:
return success
return success
def pushsync_init(opts, args):
"""Create the .pushsync directory in %APPDATA% and populate it with operation files."""
try:
psy_path = gnc.pushsync_init()
# Create dirs and files.
gnc.mkdir('indexes')
gnc.mkdir('indexes/local')
gnc.mkdir('indexes/remote')
gnc.mkdir('mappings')
gnc.mkdir('remotes')
gnc.mkdir('cwd')
gnc.mkdir('cwd/local')
gnc.mkdir('cwd/remote')
gnc.touch('.psyignore') # TODO: w or a?
gnc.touch('.psyrc')
gnc.touch('config')
gnc.touch('history')
gnc.touch('map_head')
gnc.touch('cwd/local/local')
# Initialize
global config
access_resources('config')
write_config('config', config)
gnc.write("*.tmp\n" + "~$*.doc\n" + "Thumbs.db\n", 'a', '.psyignore')
gnc.write("app_key = []\n" + "app_secret = []\n" + "access_token = []\n", 'a', 'remotes/dropbox')
gnc.write("master\n", 'a', 'map_head')
# Initialize SQL stuff
gnc.access_db('indexes/local/lindex.db')
dbindex = gnc.db['indexes/local/lindex.db']
curin = dbindex.cursor()
curin.execute('''CREATE TABLE inodes
(
path TEXT NOT NULL PRIMARY KEY,
head_id INTEGER NOT NULL,
refcount INTEGER NOT NULL,
FOREIGN KEY (head_id) REFERENCES revs (rev_id)
)''')
curin.execute('''CREATE TABLE revs
(
rev_id INTEGER PRIMARY KEY,
parent_id INTEGER,
mtime TEXT,
size INTEGER,
refcount INTEGER NOT NULL,
misc TEXT
)''')
dbindex.commit()
gnc.release_db('indexes/local/lindex.db')
gnc.access_db('mappings/master.db')
dbmapping = gnc.db['mappings/master.db']
curma = dbmapping.cursor()
curma.execute('''CREATE TABLE mapping
(
lpath TEXT NOT NULL,
rpath TEXT NOT NULL
)''')
curma.execute('''CREATE TABLE domains
(
local TEXT,
remote TEXT
)''')
curma.execute('''CREATE TABLE syncs
(
local_rev INTEGER NOT NULL,
remote_rev INTEGER NOT NULL
)''')
curma.execute('''CREATE INDEX lpath ON mapping(lpath)''')
curma.execute('''CREATE INDEX rpath ON mapping(rpath)''')
curma.execute('''CREATE INDEX local_rev ON syncs(local_rev)''')
curma.execute('''CREATE INDEX remote_rev ON syncs(remote_rev)''')
curma.execute('''INSERT INTO domains(local, remote) VALUES (?, NULL)''', ('lindex',))
dbmapping.commit()
gnc.release_db('mappings/master.db')
init()
except (OSError, sqlite3.DatabaseError):
return None
return psy_path
