def print_to_file(f_name, msg, *reflex, type='INFO', separator='default',
log_dir=_LOG_DIR_DEFAULT, mode='a', perm='default'):
"""
write message into file
* create dir / file if not exist
* read-only policy
argument:
f_name name of the log file
msg,
reflex,
type,
separator see logf.stringf
log_dir the directory to be appended in front of f_name
mode 'w' for truncate; 'a' for append
perm permission of f_name after write to it
Policy of perm='default':
if f_name exists before, then don't change permission
if f_name doesn't exist, then set permission to '0444'
Policy of perm='xxxx' (string consisting of 4 digits):
set permission to 'xxxx' no matter f_name exists or not
"""
msg = str(msg)
f_full = '{}/{}'.format(log_dir, f_name)
if perm == 'default':
perm = (os.path.exists(f_full)) and os.stat(f_full).st_mode or '0444'
# make sure directory exists
mkdir_r(os.path.dirname(f_full))
if os.path.exists(f_full):
set_f_perm(f_full, '0222')
f = open(f_full, mode)
print(stringf(msg, *reflex, type=type, separator=separator), file=f)
printf('write to file: {}', f_full, separator=None)
f.close()
set_f_perm(f_full, perm)
def printf(string, *reflex, type='INFO', separator='default'):
"""
for usage, check out logf.stringf
"""
print(stringf(string, *reflex, type=type, separator=separator))
