62 lines
2.1 KiB
Python
62 lines
2.1 KiB
Python
import os
|
|
|
|
|
|
# Rename module to handler.py
|
|
class CronHandler(object):
|
|
def __init__(self, filename):
|
|
self.content = None
|
|
self.filename = filename
|
|
|
|
def read(self):
|
|
comments = []
|
|
self.content = []
|
|
with open(self.filename, 'r') as handler:
|
|
for line in handler.readlines():
|
|
line = line.strip()
|
|
if line.startswith('#'):
|
|
comments.append(line)
|
|
else:
|
|
schedule = line.split()[:5]
|
|
command = ' '.join(line.split()[5:]).strip()
|
|
self.content.append((schedule, command, comments))
|
|
comments = []
|
|
|
|
def save(self, backup=True):
|
|
if self.content is None:
|
|
raise Exception("First read() the cron file!")
|
|
if backup:
|
|
os.rename(self.filename, self.filename + '.backup')
|
|
with open(self.filename, 'w') as handler:
|
|
handler.write('\n'.join(self.content))
|
|
handler.truncate()
|
|
self.reload()
|
|
|
|
def reload(self):
|
|
pass
|
|
# TODO
|
|
|
|
def remove(self, command):
|
|
if self.content is None:
|
|
raise Exception("First read() the cron file!")
|
|
new_content = []
|
|
for c_schedule, c_command, c_comments in self.content:
|
|
if command != c_command:
|
|
new_content.append((c_schedule, c_command, c_comments))
|
|
self.content = new_content
|
|
|
|
def add_or_update(self, schedule, command, comments=None):
|
|
""" if content contains an equal command, its schedule is updated """
|
|
if self.content is None:
|
|
raise Exception("First read() the cron file!")
|
|
new_content = []
|
|
replaced = False
|
|
for c_schedule, c_command, c_comments in self.content:
|
|
if command == c_command:
|
|
replaced = True
|
|
new_content.append((schedule, command, comments or c_comments))
|
|
else:
|
|
new_content.append((c_schedule, c_command, c_comments))
|
|
if not replaced:
|
|
new_content.append((schedule, command, comments or []))
|
|
self.content = new_content
|