959 lines
50 KiB
Python
Executable File
959 lines
50 KiB
Python
Executable File
#!/usr/bin/env python3
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# TODO: https://borgbackup.readthedocs.io/en/latest/internals/frontends.html
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# will they EVER release a public API? for now we'll just use subprocess since
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# we import it for various prep stuff anyways.
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# TODO: change loglevel of borg itself in subprocess to match the argparse?
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# --debug, --info (same as -v/--verbose), --warning, --error, --critical
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# TODO: modify config to add repo to cfg for init? or add new operation, "add"
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import argparse
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import datetime
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import json
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import getpass
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import logging
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import logging.handlers
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import os
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import pwd
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import re
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# TODO: use borg module directly instead of subprocess?
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import subprocess
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import sys
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import tempfile
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# TODO: virtual env?
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# https://pypi.org/project/isodate/
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import isodate
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# https://pypi.org/project/lxml/
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# A lot safer and easier to use than the stdlib xml module.
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from lxml import etree
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try:
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# https://www.freedesktop.org/software/systemd/python-systemd/journal.html#journalhandler-class
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from systemd import journal
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has_systemd = True
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except ImportError:
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has_systemd = False
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### LOG LEVEL MAPPINGS ###
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loglvls = {'critical': logging.CRITICAL,
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'error': logging.ERROR,
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'warning': logging.WARNING,
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'info': logging.INFO,
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'debug': logging.DEBUG}
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### DEFAULT NAMESPACE ###
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dflt_ns = 'http://git.root2.io/r00t2/borgextend/'
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# In code, replace "day" with "daily" when constructing command.
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policyperiods = (
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('seconds', 'secondly'),
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('minutes', 'minutely'),
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('hours', 'hourly'),
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('days', 'daily'),
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('weeks', 'weekly'),
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('months', 'monthly'),
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('years', 'yearly'),
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)
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### THE GUTS ###
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class Backup(object):
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def __init__(self, args):
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self.args = args
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self.ns = '{{{0}}}'.format(dflt_ns)
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if self.args['oper'] == 'restore':
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self.args['target_dir'] = os.path.abspath(os.path.expanduser(self.args['target_dir']))
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os.makedirs(self.args['target_dir'],
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exist_ok = True,
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mode = 0o700)
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self.repos = {}
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### LOGGING ###
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# Thanks to:
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# https://web.archive.org/web/20170726052946/http://www.lexev.org/en/2013/python-logging-every-day/
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# https://stackoverflow.com/a/42604392
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# https://plumberjack.blogspot.com/2010/10/supporting-alternative-formatting.html
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# and user K900_ on r/python for entertaining my very silly question.
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self.logger = logging.getLogger(__name__)
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self.logger.setLevel(loglvls[self.args['loglevel']])
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_logfmt = logging.Formatter(fmt = ('{levelname}:{name}: {message} ({asctime}; {filename}:{lineno})'),
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style = '{',
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datefmt = '%Y-%m-%d %H:%M:%S')
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_journalfmt = logging.Formatter(fmt = '{levelname}:{name}: {message} ({filename}:{lineno})',
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style = '{',
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datefmt = '%Y-%m-%d %H:%M:%S')
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handlers = []
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if self.args['disklog']:
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os.makedirs(os.path.dirname(self.args['logfile']),
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exist_ok = True,
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mode = 0o700)
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# TODO: make the constraints for rotation in config?
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handlers.append(logging.handlers.RotatingFileHandler(self.args['logfile'],
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encoding = 'utf8',
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maxBytes = 100000,
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backupCount = 1))
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if self.args['verbose']:
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handlers.append(logging.StreamHandler())
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if has_systemd:
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# There are two different modules with the same import floating around.
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# We can use either, but we need to figure out which one it is first.
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try:
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h = journal.JournalHandler()
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except AttributeError:
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h = journal.JournaldLogHandler()
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h.setFormatter(_journalfmt)
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h.setLevel(loglvls[self.args['loglevel']])
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self.logger.addHandler(h)
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for h in handlers:
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h.setFormatter(_logfmt)
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h.setLevel(loglvls[self.args['loglevel']])
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self.logger.addHandler(h)
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### END LOGGING ###
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self.logger.debug('BEGIN INITIALIZATION')
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### CONFIG ###
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if not os.path.isfile(self.args['cfgfile']):
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self.logger.error('{0} does not exist'.format(self.args['cfgfile']))
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exit(1)
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try:
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with open(self.args['cfgfile'], 'rb') as f:
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self.xml = etree.parse(f)
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self.xml.xinclude()
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self.cfg = self.xml.getroot()
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except etree.XMLSyntaxError:
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self.logger.error('{0} is invalid XML'.format(self.args['cfgfile']))
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raise ValueError(('{0} does not seem to be valid XML. '
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'See sample.config.xml for an example configuration.').format(self.args['cfgfile']))
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self.borgbin = self.cfg.attrib.get('borgpath', '/usr/bin/borg')
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### CHECK ENVIRONMENT ###
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# If we're running from cron, we want to print errors to stdout.
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if os.isatty(sys.stdin.fileno()):
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self.cron = False
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else:
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self.cron = True
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self.logger.debug('END INITIALIZATION')
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self.buildRepos()
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def buildRepos(self):
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def getRepo(server, reponames = None):
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if not reponames:
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reponames = []
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repos = []
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for repo in server.findall('{0}repo'.format(self.ns)):
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if reponames and repo.attrib['name'] not in reponames:
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continue
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if repo.attrib.get('dummy', 'false').lower()[0] in ('1', 't'):
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continue
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r = {}
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for a in repo.attrib:
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r[a] = repo.attrib[a]
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for e in ('path', 'exclude'):
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# TODO: have an attrib for path and exclude, "glob=<bool>"?
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# If true, try using the glob module to resolve paths?
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# This gives us the benefit of allowing glob per-path/exclude.
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r[e] = [i.text for i in repo.findall(self.ns + e)]
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for prep in repo.findall('{0}prep'.format(self.ns)):
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if 'prep' not in r:
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r['prep'] = []
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if prep.attrib.get('inline', 'true').lower()[0] in ('0', 'f'):
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with open(os.path.abspath(os.path.expanduser(prep.text)), 'r') as f:
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r['prep'].append(f.read())
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else:
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r['prep'].append(prep.text)
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plugins = repo.find('{0}plugins'.format(self.ns))
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if plugins is not None:
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r['plugins'] = {}
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for plugin in plugins.findall('{0}plugin'.format(self.ns)):
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pname = plugin.attrib['name']
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r['plugins'][pname] = {'path': plugin.attrib.get('path'),
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'params': {}}
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for param in plugin.findall('{0}param'.format(self.ns)):
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paramname = param.attrib['key']
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if param.attrib.get('json', 'false').lower()[0] in ('1', 't'):
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r['plugins'][pname]['params'][paramname] = json.loads(param.text)
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else:
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r['plugins'][pname]['params'][paramname] = param.text
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keepWithin = repo.find('{0}keepWithin'.format(self.ns))
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if keepWithin is not None:
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if 'retention' not in r.keys():
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r['retention'] = {}
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r['retention']['last'] = isodate.parse_duration(keepWithin.text)
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keepLast = repo.find('{0}keepLast'.format(self.ns))
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if keepLast is not None:
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for e, _ in policyperiods:
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policy = keepLast.find('{0}{1}'.format(self.ns, e))
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if policy is not None:
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if 'retention' not in r.keys():
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r['retention'] = {}
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# This is safe. We validate the config.
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r['retention'][e] = int(policy.text)
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repos.append(r)
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return(repos)
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self.logger.debug('VARS (before args cleanup): {0}'.format(vars(self)))
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self.args['repo'] = [i.strip() for i in self.args['repo'].split(',')]
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self.args['server'] = [i.strip() for i in self.args['server'].split(',')]
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if 'all' in self.args['repo']:
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self.args['repo'] = None
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if 'all' in self.args['server']:
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self.args['server'] = []
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for server in self.cfg.findall('{0}server'.format(self.ns)):
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if server.attrib.get('dummy', 'false').lower()[0] in ('1', 't'):
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continue
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# The server elements are uniquely constrained to the "target" attrib.
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# *NO TWO <server> ELEMENTS WITH THE SAME target= SHOULD EXIST.*
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self.args['server'].append(server.attrib['target'])
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for server in self.cfg.findall('{0}server'.format(self.ns)):
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sname = server.attrib['target']
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if sname not in self.args['server']:
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continue
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if server.attrib.get('dummy', 'false').lower()[0] in ('1', 't'):
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continue
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self.repos[sname] = {}
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for x in server.attrib:
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if x != 'target':
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self.repos[sname][x] = server.attrib[x]
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self.repos[sname]['repos'] = getRepo(server, reponames = self.args['repo'])
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self.logger.debug('VARS (after args cleanup): {0}'.format(vars(self)))
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self.logger.debug('REPOS: {0}'.format(dict(self.repos)))
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return()
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def createRepo(self):
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for server in self.repos:
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_env = os.environ.copy()
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# https://github.com/borgbackup/borg/issues/2273
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# https://borgbackup.readthedocs.io/en/stable/internals/frontends.html
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_env['LANG'] = 'en_US.UTF-8'
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_env['LC_CTYPE'] = 'en_US.UTF-8'
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if self.repos[server]['remote'].lower()[0] in ('1', 't'):
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_env['BORG_RSH'] = self.repos[server]['rsh']
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_user = self.repos[server].get('user', pwd.getpwuid(os.geteuid()).pw_name)
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for repo in self.repos[server]['repos']:
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self.logger.info('[{0}]: BEGIN INITIALIZATION'.format(repo['name']))
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_loc_env = _env.copy()
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if 'password' not in repo:
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print('Password not supplied for {0}:{1}.'.format(server, repo['name']))
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_loc_env['BORG_PASSPHRASE'] = getpass.getpass('Password (will NOT echo back): ')
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else:
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_loc_env['BORG_PASSPHRASE'] = repo['password']
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_cmd = [self.borgbin,
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'--log-json',
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'--{0}'.format(self.args['loglevel']),
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'init',
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'-e', 'repokey']
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if self.repos[server]['remote'].lower()[0] in ('1', 't'):
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repo_tgt = '{0}@{1}'.format(_user, server)
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else:
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repo_tgt = os.path.abspath(os.path.expanduser(server))
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_cmd.append('{0}:{1}'.format(repo_tgt,
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repo['name']))
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self.logger.debug('VARS: {0}'.format(vars(self)))
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if not self.args['dryrun']:
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_out = subprocess.run(_cmd,
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env = _loc_env,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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_stdout = _out.stdout.decode('utf-8').strip()
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_stderr = _out.stderr.decode('utf-8').strip()
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_returncode = _out.returncode
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self.logger.debug('[{0}]: (RESULT) {1}'.format(repo['name'], _stdout))
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# sigh. borg uses stderr for verbose output.
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self.logger.debug('[{0}]: STDERR: ({2})\n{1}'.format(repo['name'],
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_stderr,
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' '.join(_cmd)))
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if _returncode != 0:
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self.logger.error(
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'[{0}]: FAILED: {1}'.format(repo['name'], ' '.join(_cmd)))
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if _stderr != '' and self.cron and _returncode != 0:
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self.logger.warning('Command {0} failed: {1}'.format(' '.join(_cmd),
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_stderr))
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self.logger.info('[{0}]: END INITIALIZATION'.format(repo['name']))
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return()
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def create(self):
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# TODO: support "--strip-components N"?
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self.logger.info('START: backup')
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for server in self.repos:
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_env = os.environ.copy()
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if self.repos[server]['remote'].lower()[0] in ('1', 't'):
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_env['BORG_RSH'] = self.repos[server].get('rsh', None)
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_env['LANG'] = 'en_US.UTF-8'
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_env['LC_CTYPE'] = 'en_US.UTF-8'
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_user = self.repos[server].get('user', pwd.getpwuid(os.geteuid()).pw_name)
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for repo in self.repos[server]['repos']:
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_loc_env = _env.copy()
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if 'password' not in repo:
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print('Password not supplied for {0}:{1}.'.format(server, repo['name']))
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_loc_env['BORG_PASSPHRASE'] = getpass.getpass('Password (will NOT echo back): ')
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else:
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_loc_env['BORG_PASSPHRASE'] = repo['password']
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self.logger.info('[{0}]: BEGIN BACKUP: {1}'.format(server, repo['name']))
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if 'prep' in repo:
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tmpdir = os.path.abspath(os.path.expanduser('~/.cache/.borgextend'))
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os.makedirs(tmpdir, exist_ok = True)
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os.chmod(tmpdir, mode = 0o0700)
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for idx, prep in enumerate(repo['prep']):
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exec_fd, exec_tmp = tempfile.mkstemp(prefix = '_borgextend.',
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suffix = '._tmpexc',
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text = True,
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dir = tmpdir)
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# D'oh. I need to close the FD before messing with it.
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os.close(exec_fd)
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os.chmod(exec_tmp, mode = 0o0700)
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with open(exec_tmp, 'w') as f:
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f.write(prep)
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prep_out = subprocess.run([exec_tmp],
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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if prep_out.returncode != 0:
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err = ('Prep job {0} ({1}) for server {2} (repo {3}) '
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'returned non-zero').format(idx, exec_tmp, server, repo)
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self.logger.warning(err)
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self.logger.debug('STDOUT: {0}'.format(prep_out.stdout.decode('utf-8')))
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self.logger.debug('STDERR: {0}'.format(prep_out.stderr.decode('utf-8')))
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else:
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os.remove(exec_tmp)
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if 'plugins' in repo:
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import importlib
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_orig_path = sys.path
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for plugin in repo['plugins']:
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self.logger.debug('Initializing plugin: {0}'.format(plugin))
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if repo['plugins'][plugin]['path']:
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sys.path.insert(1, os.path.abspath(os.path.expanduser(repo['plugins'][plugin]['path'])))
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borgextend_tmpmod = importlib.import_module(plugin, package = None)
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if not repo['plugins'][plugin]['params']:
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borgextend_tmpmod.Backup()
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else:
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borgextend_tmpmod.Backup(**repo['plugins'][plugin]['params'])
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del(sys.modules[plugin])
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del(borgextend_tmpmod)
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sys.path = _orig_path
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self.logger.debug('Finished plugin: {0}'.format(plugin))
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# This is where we actually do the thing.
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_cmd = [self.borgbin,
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'--log-json',
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'--{0}'.format(self.args['loglevel']),
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'create',
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'--stats']
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if 'compression' in repo:
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_cmd.extend(['--compression', repo['compression']])
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if 'exclude' in repo:
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for e in repo['exclude']:
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if os.path.exists(e):
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_cmd.extend(['--exclude', e])
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if self.repos[server]['remote'].lower()[0] in ('1', 't'):
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repo_tgt = '{0}@{1}'.format(_user, server)
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else:
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repo_tgt = os.path.abspath(os.path.expanduser(server))
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_cmd.append('{0}:{1}::{2}'.format(repo_tgt,
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repo['name'],
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self.args['archive']))
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for p in repo['path']:
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if os.path.exists(p):
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_cmd.append(p)
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self.logger.debug('VARS: {0}'.format(vars()))
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# We don't use self.cmdExec() here because we want to explicitly
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# pass the env and format the log line differently.
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self.logger.debug('[{0}]: Running command: {1}'.format(repo['name'],
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' '.join(_cmd)))
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if not self.args['dryrun']:
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_out = subprocess.run(_cmd,
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env = _loc_env,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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_stdout = _out.stdout.decode('utf-8').strip()
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_stderr = _out.stderr.decode('utf-8').strip()
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_returncode = _out.returncode
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self.logger.debug('[{0}]: (RESULT) {1}'.format(repo['name'], _stdout))
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self.logger.debug('[{0}]: STDERR: ({2})\n{1}'.format(repo['name'],
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_stderr,
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' '.join(
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_cmd)))
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if _returncode != 0:
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self.logger.error(
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'[{0}]: FAILED: {1}'.format(repo['name'], ' '.join(_cmd)))
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if _stderr != '' and self.cron and _returncode != 0:
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self.logger.warning('Command {0} failed: {1}'.format(' '.join(_cmd),
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_stderr))
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del (_loc_env['BORG_PASSPHRASE'])
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self.logger.info('[{0}]: END BACKUP'.format(repo['name']))
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self.logger.info('END: backup')
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return()
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def restore(self):
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# TODO: support "--strip-components N"?
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# TODO: support add'l args?
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# TODO: Restore() class in plugins?
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# https://borgbackup.readthedocs.io/en/stable/usage/extract.html
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orig_dir = os.getcwd()
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self.logger.info('START: restore')
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self.args['target_dir'] = os.path.abspath(os.path.expanduser(self.args['target_dir']))
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os.makedirs(self.args['target_dir'], exist_ok = True)
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os.chmod(self.args['target_dir'], mode = 0o0700)
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for server in self.repos:
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_env = os.environ.copy()
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if self.repos[server]['remote'].lower()[0] in ('1', 't'):
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_env['BORG_RSH'] = self.repos[server].get('rsh', None)
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_env['LANG'] = 'en_US.UTF-8'
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_env['LC_CTYPE'] = 'en_US.UTF-8'
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_user = self.repos[server].get('user', pwd.getpwuid(os.geteuid()).pw_name)
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server_dir = os.path.join(self.args['target_dir'], server)
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for repo in self.repos[server]['repos']:
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_loc_env = _env.copy()
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if 'password' not in repo:
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print('Password not supplied for {0}:{1}.'.format(server, repo['name']))
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_loc_env['BORG_PASSPHRASE'] = getpass.getpass('Password (will NOT echo back): ')
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else:
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_loc_env['BORG_PASSPHRASE'] = repo['password']
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if len(self.repos[server]) > 1:
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dest_dir = os.path.join(server_dir, repo['name'])
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else:
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dest_dir = server_dir
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|
os.makedirs(dest_dir, exist_ok = True)
|
|
os.chmod(dest_dir, mode = 0o0700)
|
|
os.chdir(dest_dir)
|
|
self.logger.info('[{0}]: BEGIN RESTORE'.format(repo['name']))
|
|
_cmd = [self.borgbin,
|
|
'--log-json',
|
|
'--{0}'.format(self.args['loglevel']),
|
|
'extract']
|
|
if self.repos[server]['remote'].lower()[0] in ('1', 't'):
|
|
repo_tgt = '{0}@{1}'.format(_user, server)
|
|
else:
|
|
repo_tgt = os.path.abspath(os.path.expanduser(server))
|
|
_cmd.append('{0}:{1}::{2}'.format(repo_tgt,
|
|
repo['name'],
|
|
self.args['archive']))
|
|
if self.args['archive_path']:
|
|
_cmd.append(self.args['archive_path'])
|
|
self.logger.debug('VARS: {0}'.format(vars(self)))
|
|
self.logger.debug('[{0}]: Running command: {1}'.format(repo['name'],
|
|
' '.join(_cmd)))
|
|
if not self.args['dryrun']:
|
|
_out = subprocess.run(_cmd,
|
|
env = _loc_env,
|
|
stdout = subprocess.PIPE,
|
|
stderr = subprocess.PIPE)
|
|
_stdout = _out.stdout.decode('utf-8').strip()
|
|
_stderr = _out.stderr.decode('utf-8').strip()
|
|
_returncode = _out.returncode
|
|
self.logger.debug('[{0}]: (RESULT) {1}'.format(repo['name'], _stdout))
|
|
self.logger.debug('[{0}]: STDERR: ({2})\n{1}'.format(repo['name'],
|
|
_stderr,
|
|
' '.join(_cmd)))
|
|
if _returncode != 0:
|
|
self.logger.error('[{0}]: FAILED: {1}'.format(repo['name'],
|
|
' '.join(_cmd)))
|
|
if _stderr != '' and self.cron and _returncode != 0:
|
|
self.logger.warning('Command {0} failed: {1}'.format(' '.join(_cmd),
|
|
_stderr))
|
|
self.logger.info('[{0}]: END RESTORE'.format(repo['name']))
|
|
os.chdir(orig_dir)
|
|
self.logger.info('END: restore')
|
|
return()
|
|
|
|
def listRepos(self):
|
|
def objPrinter(d, indent = 0):
|
|
for k, v in d.items():
|
|
if k == 'name':
|
|
continue
|
|
if k.lower() in ('password', 'path', 'exclude', 'prep', 'plugins', 'params', 'compression'):
|
|
keyname = k.title()
|
|
else:
|
|
keyname = k
|
|
if isinstance(v, list):
|
|
for i in v:
|
|
print('\033[1m{0}{1}:\033[0m {2}'.format(('\t' * indent),
|
|
keyname,
|
|
i))
|
|
elif isinstance(v, dict):
|
|
print('\033[1m{0}{1}:\033[0m'.format(('\t' * indent),
|
|
keyname))
|
|
objPrinter(v, indent = (indent + 1))
|
|
else:
|
|
print('\033[1m{0}{1}:\033[0m {2}'.format(('\t' * indent),
|
|
keyname,
|
|
v))
|
|
return()
|
|
print('\n\033[1mCurrently configured repositories are:\033[0m\n')
|
|
for server in self.repos:
|
|
print('\033[1mTarget:\033[0m {0}'.format(server))
|
|
print('\033[1mRepositories:\033[0m')
|
|
for r in self.repos[server]['repos']:
|
|
if not self.args['verbose']:
|
|
print('\t\t{0}'.format(r['name']))
|
|
else:
|
|
print('\t\t\033[1mName:\033[0m {0}'.format(r['name']))
|
|
print('\033[1m\t\tDetails:\033[0m')
|
|
objPrinter(r, indent = 3)
|
|
print()
|
|
return()
|
|
|
|
def prune(self):
|
|
# https://borgbackup.readthedocs.io/en/stable/usage/prune.html
|
|
self.logger.info('START: prune')
|
|
for server in self.repos:
|
|
_env = os.environ.copy()
|
|
if self.repos[server]['remote'].lower()[0] in ('1', 't'):
|
|
_env['BORG_RSH'] = self.repos[server].get('rsh', None)
|
|
_env['LANG'] = 'en_US.UTF-8'
|
|
_env['LC_CTYPE'] = 'en_US.UTF-8'
|
|
_user = self.repos[server].get('user', pwd.getpwuid(os.geteuid()).pw_name)
|
|
for repo in self.repos[server]['repos']:
|
|
if repo.get('retention') is None:
|
|
# No prune retention was set. Skip.
|
|
continue
|
|
_loc_env = _env.copy()
|
|
if 'password' not in repo:
|
|
print('Password not supplied for {0}:{1}.'.format(server, repo['name']))
|
|
_loc_env['BORG_PASSPHRASE'] = getpass.getpass('Password (will NOT echo back): ')
|
|
else:
|
|
_loc_env['BORG_PASSPHRASE'] = repo['password']
|
|
self.logger.info('[{0}]: BEGIN PRUNE: {1}'.format(server, repo['name']))
|
|
# This is where we actually do the thing.
|
|
_cmd = [self.borgbin,
|
|
'--log-json',
|
|
'--{0}'.format(self.args['loglevel']),
|
|
'prune',
|
|
'--stats']
|
|
# keepWithin
|
|
if repo['retention'].get('last') is not None:
|
|
if isinstance(repo['retention'].get('last'), datetime.timedelta): # it's a time.timedelta
|
|
retentionSeconds = repo['retention'].total_seconds()
|
|
else: # it's an isodate.Duration
|
|
retentionSeconds = repo['retention'].totimedelta(datetime.datetime.now()).total_seconds()
|
|
_cmd.extend(['--keep-within', '{0}H'.format(retentionSeconds / 60)])
|
|
# keepLast
|
|
for e, a in policyperiods:
|
|
if repo['retention'].get(e, 0) is not 0:
|
|
_cmd.extend(['--keep-{0}'.format(a), repo['retention'][e]])
|
|
if self.repos[server]['remote'].lower()[0] in ('1', 't'):
|
|
repo_tgt = '{0}@{1}'.format(_user, server)
|
|
else:
|
|
repo_tgt = os.path.abspath(os.path.expanduser(server))
|
|
_cmd.append('{0}:{1}'.format(repo_tgt,
|
|
repo['name']))
|
|
self.logger.debug('VARS: {0}'.format(vars()))
|
|
# We don't use self.cmdExec() here because we want to explicitly
|
|
# pass the env and format the log line differently.
|
|
self.logger.debug('[{0}]: Running command: {1}'.format(repo['name'],
|
|
' '.join(_cmd)))
|
|
if not self.args['dryrun']:
|
|
_out = subprocess.run(_cmd,
|
|
env = _loc_env,
|
|
stdout = subprocess.PIPE,
|
|
stderr = subprocess.PIPE)
|
|
_stdout = _out.stdout.decode('utf-8').strip()
|
|
_stderr = _out.stderr.decode('utf-8').strip()
|
|
_returncode = _out.returncode
|
|
self.logger.debug('[{0}]: (RESULT) {1}'.format(repo['name'], _stdout))
|
|
self.logger.debug('[{0}]: STDERR: ({2})\n{1}'.format(repo['name'],
|
|
_stderr,
|
|
' '.join(
|
|
_cmd)))
|
|
if _returncode != 0:
|
|
self.logger.error(
|
|
'[{0}]: FAILED: {1}'.format(repo['name'], ' '.join(_cmd)))
|
|
if _stderr != '' and self.cron and _returncode != 0:
|
|
self.logger.warning('Command {0} failed: {1}'.format(' '.join(_cmd),
|
|
_stderr))
|
|
del (_loc_env['BORG_PASSPHRASE'])
|
|
self.logger.info('[{0}]: END PRUNE'.format(repo['name']))
|
|
self.logger.info('END: prune')
|
|
return()
|
|
|
|
def printer(self):
|
|
# TODO: better alignment. https://stackoverflow.com/a/5676884
|
|
_results = self.lister()
|
|
timefmt = '%Y-%m-%dT%H:%M:%S.%f'
|
|
if not self.args['archive']:
|
|
# It's a listing of archives
|
|
for server in _results:
|
|
print('\033[1mTarget:\033[0m {0}'.format(server))
|
|
print('\033[1mRepositories:\033[0m')
|
|
# Normally this is a list everywhere else. For results, however, it's a dict.
|
|
for repo in _results[server]:
|
|
print('\t\033[1m{0}:\033[0m'.format(repo))
|
|
print('\t\t\033[1mSnapshot\t\tTimestamp\033[0m')
|
|
for archive in _results[server][repo]:
|
|
print('\t\t{0}\t\t{1}'.format(archive['name'],
|
|
datetime.datetime.strptime(archive['time'], timefmt)))
|
|
print()
|
|
else:
|
|
# It's a listing inside an archive
|
|
if self.args['verbose']:
|
|
_archive_fields = ['Mode', 'Owner', 'Size', 'Timestamp', 'Path']
|
|
for server in _results:
|
|
print('\033[1mTarget:\033[0m {0}'.format(server))
|
|
print('\033[1mRepositories:\033[0m')
|
|
for repo in _results[server]:
|
|
print('\t\033[1m{0}:\033[0m'.format(repo))
|
|
print(('\t\t\033[1m'
|
|
'{0[0]:<10}\t'
|
|
'{0[1]:<10}\t'
|
|
'{0[2]:<10}\t'
|
|
'{0[3]:<19}\t'
|
|
'{0[4]}'
|
|
'\033[0m').format(_archive_fields))
|
|
for file in _results[server][repo]:
|
|
file['mtime'] = datetime.datetime.strptime(file['mtime'], timefmt)
|
|
print(('\t\t'
|
|
'{mode:<10}\t'
|
|
'{user:<10}\t'
|
|
'{size:<10}\t'
|
|
'{mtime}\t'
|
|
'{path}').format(**file))
|
|
else:
|
|
for server in _results:
|
|
print('\033[1mTarget:\033[0m {0}'.format(server))
|
|
print('\033[1mRepositories:\033[0m')
|
|
for repo in _results[server]:
|
|
print('\t\033[1m{0}:\033[0m'.format(repo))
|
|
for file in _results[server][repo]:
|
|
print(file['path'])
|
|
return()
|
|
|
|
def lister(self):
|
|
output = {}
|
|
self.logger.debug('START: lister')
|
|
for server in self.repos:
|
|
output[server] = {}
|
|
_env = os.environ.copy()
|
|
if self.repos[server]['remote'].lower()[0] in ('1', 't'):
|
|
_env['BORG_RSH'] = self.repos[server].get('rsh', None)
|
|
_env['LANG'] = 'en_US.UTF-8'
|
|
_env['LC_CTYPE'] = 'en_US.UTF-8'
|
|
_user = self.repos[server].get('user', pwd.getpwuid(os.geteuid()).pw_name)
|
|
for repo in self.repos[server]['repos']:
|
|
_loc_env = _env.copy()
|
|
if 'password' not in repo:
|
|
print('Password not supplied for {0}:{1}.'.format(server, repo['name']))
|
|
_loc_env['BORG_PASSPHRASE'] = getpass.getpass('Password (will NOT echo back): ')
|
|
else:
|
|
_loc_env['BORG_PASSPHRASE'] = repo['password']
|
|
if self.repos[server]['remote'].lower()[0] in ('1', 't'):
|
|
repo_tgt = '{0}@{1}'.format(_user, server)
|
|
else:
|
|
repo_tgt = os.path.abspath(os.path.expanduser(server))
|
|
_cmd = [self.borgbin,
|
|
'--log-json',
|
|
'--{0}'.format(self.args['loglevel']),
|
|
'list',
|
|
('--json-lines' if self.args['archive'] else '--json')]
|
|
_cmd.append('{0}:{1}{2}'.format(repo_tgt,
|
|
repo['name'],
|
|
('::{0}'.format(self.args['archive']) if self.args['archive']
|
|
else '')))
|
|
if not self.args['dryrun']:
|
|
_out = subprocess.run(_cmd,
|
|
env = _loc_env,
|
|
stdout = subprocess.PIPE,
|
|
stderr = subprocess.PIPE)
|
|
_stdout = '\n'.join([i.strip() for i in _out.stdout.decode('utf-8').splitlines()])
|
|
_stderr = _out.stderr.decode('utf-8').strip()
|
|
_returncode = _out.returncode
|
|
try:
|
|
if self.args['archive']:
|
|
output[server][repo['name']] = [json.loads(i) for i in _stdout.splitlines()]
|
|
else:
|
|
output[server][repo['name']] = json.loads(_stdout)['archives']
|
|
except json.decoder.JSONDecodeError:
|
|
output[server][repo['name']] = []
|
|
self.logger.debug('[{0}]: (RESULT) {1}'.format(repo['name'],
|
|
'\n'.join(_stdout)))
|
|
self.logger.debug('[{0}]: STDERR: ({2}) ({1})'.format(repo['name'],
|
|
_stderr,
|
|
' '.join(_cmd)))
|
|
if _stderr != '' and self.cron and _returncode != 0:
|
|
self.logger.warning('Command {0} failed: {1}'.format(' '.join(_cmd),
|
|
_stderr))
|
|
if not self.args['archive']:
|
|
if self.args['numlimit'] > 0:
|
|
if self.args['old']:
|
|
output[server][repo['name']] = output[server][repo['name']][:self.args['numlimit']]
|
|
else:
|
|
output[server][repo['name']] = list(
|
|
reversed(
|
|
output[server][repo['name']]))[:self.args['numlimit']]
|
|
if self.args['invert']:
|
|
output[server][repo['name']] = reversed(output[server][repo['name']])
|
|
self.logger.debug('END: lister')
|
|
return(output)
|
|
|
|
|
|
def printMoarHelp():
|
|
_helpstr = ('\n\tNOTE: Sorting only applies to listing archives, NOT the contents!\n\n'
|
|
'In order to efficiently display results, there are several options to handle it. '
|
|
'Namely, these are:\n\n\t\t'
|
|
'-s/--sort [direction]\n\t\t'
|
|
'-l/--limit [number]\n\t\t'
|
|
'-x/--invert\n\n'
|
|
'For example, if you want to list the 5 most recently *taken* snapshots, you would use:\n\n\t\t'
|
|
'-l 5\n\n'
|
|
'If you would want those SAME results SORTED in the reverse order (i.e. the 5 most recently '
|
|
'taken snapshots sorted from newest to oldest), then it would be: \n\n\t\t'
|
|
'-l 5 -x\n\n'
|
|
'Lastly, if you wanted to list the 7 OLDEST TAKEN snapshots in reverse order '
|
|
'(that is, sorted from newest to oldest), that\'d be:\n\n\t\t'
|
|
'-o -l 7 -x\n')
|
|
print(_helpstr)
|
|
exit(0)
|
|
|
|
|
|
def parseArgs():
|
|
### DEFAULTS ###
|
|
_date = datetime.datetime.now().strftime("%Y_%m_%d.%H_%M")
|
|
_logfile = '/var/log/borg/{0}'.format(_date)
|
|
_cfgfile = os.path.abspath(
|
|
os.path.join(os.path.expanduser('~'),
|
|
'.config',
|
|
'borgextend',
|
|
'backup.xml'))
|
|
_defloglvl = 'info'
|
|
######
|
|
args = argparse.ArgumentParser(description = 'Backups manager',
|
|
epilog = ('TIP: this program has context-specific help. '
|
|
'e.g. try "%(prog)s list --help"'))
|
|
args.add_argument('-c', '--config',
|
|
dest = 'cfgfile',
|
|
default = _cfgfile,
|
|
help = (
|
|
'The path to the config file. '
|
|
'Default: \033[1m{0}\033[0m'.format(_cfgfile)))
|
|
args.add_argument('-Ll', '--loglevel',
|
|
dest = 'loglevel',
|
|
default = _defloglvl,
|
|
choices = list(loglvls.keys()),
|
|
help = (
|
|
'The level of logging to perform. \033[1mWARNING:\033[0m \033[1mdebug\033[0m will '
|
|
'log VERY sensitive information such as passwords! '
|
|
'Default: \033[1m{0}\033[0m'.format(_defloglvl)))
|
|
args.add_argument('-Ld', '--log-to-disk',
|
|
dest = 'disklog',
|
|
action = 'store_true',
|
|
help = (
|
|
'If specified, log to a specific file (-Lf/--logfile) instead of the system logger.'))
|
|
args.add_argument('-Lf', '--logfile',
|
|
dest = 'logfile',
|
|
default = _logfile,
|
|
help = (
|
|
'The path to the logfile, only used if -Ld/--log-to-disk is specified. '
|
|
'Default: \033[1m{0}\033[0m (dynamic)').format(_logfile))
|
|
args.add_argument('-v', '--verbose',
|
|
dest = 'verbose',
|
|
action = 'store_true',
|
|
help = ('If specified, log messages will be printed to STDERR in addition to the other '
|
|
'configured log system(s), and verbosity for printing functions is increased. '
|
|
'\033[1mWARNING:\033[0m This may display VERY sensitive information such as passwords!'))
|
|
### ARGS FOR ALL OPERATIONS ###
|
|
commonargs = argparse.ArgumentParser(add_help = False)
|
|
commonargs.add_argument('-r', '--repo',
|
|
dest = 'repo',
|
|
default = 'all',
|
|
help = ('The repository to perform the operation for. '
|
|
'The default is \033[1mall\033[0m, a special value that specifies all known '
|
|
'repositories. Can also accept a comma-separated list.'))
|
|
commonargs.add_argument('-S', '--server',
|
|
dest = 'server',
|
|
default = 'all',
|
|
help = ('The server to perform the operation for. '
|
|
'The default is \033[1mall\033[0m, a special value that specifies all known '
|
|
'servers. Can also accept a comma-separated list.'))
|
|
fileargs = argparse.ArgumentParser(add_help = False)
|
|
fileargs.add_argument('-a', '--archive',
|
|
default = _date,
|
|
dest = 'archive',
|
|
help = ('The name of the archive/snapshot. '
|
|
'Default: \033[1m{0}\033[0m (dynamic)').format(_date))
|
|
remoteargs = argparse.ArgumentParser(add_help = False)
|
|
remoteargs.add_argument('-d', '--dry-run',
|
|
dest = 'dryrun',
|
|
action = 'store_true',
|
|
help = ('Act as if we are performing tasks, but none will actually be executed '
|
|
'(useful for testing logging)'))
|
|
### OPERATIONS ###
|
|
subparsers = args.add_subparsers(help = 'Operation to perform',
|
|
dest = 'oper')
|
|
backupargs = subparsers.add_parser('backup',
|
|
help = 'Perform a backup.',
|
|
parents = [commonargs,
|
|
remoteargs,
|
|
fileargs])
|
|
listargs = subparsers.add_parser('list',
|
|
help = 'List available backups.',
|
|
parents = [commonargs, remoteargs])
|
|
listrepoargs = subparsers.add_parser('listrepos',
|
|
help = ('List availabile/configured repositories.'),
|
|
parents = [commonargs])
|
|
initargs = subparsers.add_parser('init',
|
|
help = 'Initialise a repository.',
|
|
parents = [commonargs, remoteargs])
|
|
rstrargs = subparsers.add_parser('restore',
|
|
help = ('Restore ("extract") an archive.'),
|
|
parents = [commonargs,
|
|
remoteargs,
|
|
fileargs])
|
|
pruneargs = subparsers.add_parser('prune',
|
|
help = ('Prune backups to schedule.'),
|
|
parents = [commonargs,
|
|
remoteargs,
|
|
fileargs])
|
|
cvrtargs = subparsers.add_parser('convert',
|
|
help = ('Convert the legacy JSON format to the new XML format and quit'))
|
|
### OPERATION-SPECIFIC OPTIONS ###
|
|
# CREATE ("backup") #
|
|
# DISPLAY/OUTPUT ("list") #
|
|
listargs.add_argument('-a', '--archive',
|
|
dest = 'archive',
|
|
default = False,
|
|
help = 'If specified, will list the *contents* of the given archive name.')
|
|
listargs.add_argument('-l', '--limit',
|
|
dest = 'numlimit',
|
|
type = int,
|
|
default = '5',
|
|
help = ('If specified, constrain the outout to this number of results each repo. '
|
|
'Default is \033[1m5\033[0m, use 0 for unlimited. See \033[1m-H/--list-help\033[0m'))
|
|
listargs.add_argument('-s', '--sort',
|
|
dest = 'sortby',
|
|
choices = ['newest', 'oldest'],
|
|
default = 'oldest',
|
|
help = ('The order to sort the results by. See \033[1m-H/--list-help\033[0m. '
|
|
'Default: \033[1moldest\033[0m'))
|
|
listargs.add_argument('-x', '--invert',
|
|
dest = 'invert',
|
|
action = 'store_true',
|
|
help = 'Invert the order of results. See \033[1m-H/--list-help\033[0m.')
|
|
listargs.add_argument('-o', '--old',
|
|
dest = 'old',
|
|
action = 'store_true',
|
|
help = ('Instead of grabbing the latest results, grab the earliest results. This differs '
|
|
'from \033[1m-s/--sort\033[0m. See \033[1m-H/--list-help\033[0m.'))
|
|
listargs.add_argument('-H', '--list-help',
|
|
dest = 'moarhelp',
|
|
action = 'store_true',
|
|
help = ('Print extended information about how to '
|
|
'manage the output of listing and exit.'))
|
|
## EXTRACT ("restore")
|
|
rstrargs.add_argument('-p', '--path',
|
|
dest = 'archive_path',
|
|
help = ('If specified, only restore this specific path (and any subpaths).'))
|
|
rstrargs.add_argument('-t', '--target',
|
|
required = True,
|
|
dest = 'target_dir',
|
|
help = ('The path to the directory where the restore should be dumped to. It is '
|
|
'recommended to not restore to the same directory that the archive is taken from. '
|
|
'A subdirectory will be created for each server. '
|
|
'If multiple repos (or "all") are provided, subdirectories will be created per '
|
|
'repo under their respective server(s).'))
|
|
return (args)
|
|
|
|
|
|
def convertConf(cfgfile):
|
|
oldcfgfile = re.sub('\.xml$', '.json', cfgfile)
|
|
try:
|
|
with open(oldcfgfile, 'r') as f:
|
|
oldcfg = json.load(f)
|
|
except json.decoder.JSONDecodeError:
|
|
# It's not JSON. It's either already XML or invalid config.
|
|
return(cfgfile)
|
|
# Switched from JSON to XML, so we need to do some basic conversion.
|
|
newfname = re.sub('\.json$', '.xml', os.path.basename(cfgfile))
|
|
newcfg = os.path.join(os.path.dirname(cfgfile),
|
|
newfname)
|
|
if os.path.exists(newcfg):
|
|
# Do nothing. We don't want to overwrite an existing config
|
|
# and we'll assume it's an already-done conversion.
|
|
return(newcfg)
|
|
print(('It appears that you are still using the legacy JSON format. '
|
|
'We will attempt to convert it to the new XML format ({0}) but it may '
|
|
'require modifications, especially if you are using any prep functions as those are not '
|
|
'converted automatically. See sample.config.xml for an example of this.').format(newcfg))
|
|
cfg = etree.Element('borg')
|
|
# The old format only supported one server.
|
|
server = etree.Element('server')
|
|
server.attrib['target'] = oldcfg['config']['host']
|
|
server.attrib['remote'] = 'true'
|
|
server.attrib['rsh'] = oldcfg['config']['ctx']
|
|
server.attrib['user'] = oldcfg['config'].get('user', pwd.getpwuid(os.geteuid()).pw_name)
|
|
for r in oldcfg['repos']:
|
|
repo = etree.Element('repo')
|
|
repo.attrib['name'] = r
|
|
repo.attrib['password'] = oldcfg['repos'][r]['password']
|
|
for p in oldcfg['repos'][r]['paths']:
|
|
path = etree.Element('path')
|
|
path.text = p
|
|
repo.append(path)
|
|
for e in oldcfg['repos'][r].get('excludes', []):
|
|
path = etree.Element('exclude')
|
|
path.text = e
|
|
repo.append(path)
|
|
server.append(repo)
|
|
cfg.append(server)
|
|
# Build the full XML spec.
|
|
namespaces = {None: dflt_ns,
|
|
'xsi': 'http://www.w3.org/2001/XMLSchema-instance'}
|
|
xsi = {('{http://www.w3.org/2001/'
|
|
'XMLSchema-instance}schemaLocation'): ('http://git.r00t2.io/r00t2/borgextend/src/branch/master/config.xsd')}
|
|
genname = 'LXML (http://lxml.de/)'
|
|
root = etree.Element('borg', nsmap = namespaces, attrib = xsi)
|
|
root.append(etree.Comment(('Generated by {0} on {1} from {2} via {3}').format(sys.argv[0],
|
|
datetime.datetime.now(),
|
|
oldcfgfile,
|
|
genname)))
|
|
root.append(etree.Comment('THIS FILE CONTAINS SENSITIVE INFORMATION. SHARE/SCRUB WISELY.'))
|
|
for x in cfg:
|
|
root.append(x)
|
|
# Write out the file to disk.
|
|
xml = etree.ElementTree(root)
|
|
with open(newcfg, 'wb') as f:
|
|
xml.write(f,
|
|
xml_declaration = True,
|
|
encoding = 'utf-8',
|
|
pretty_print = True)
|
|
# Return the new config's path.
|
|
return(newcfg)
|
|
|
|
|
|
def main():
|
|
rawargs = parseArgs()
|
|
parsedargs = rawargs.parse_args()
|
|
args = vars(parsedargs)
|
|
args['cfgfile'] = os.path.abspath(os.path.expanduser(args['cfgfile']))
|
|
if not args['oper']:
|
|
rawargs.print_help()
|
|
exit(0)
|
|
if 'moarhelp' in args.keys() and args['moarhelp']:
|
|
printMoarHelp()
|
|
if args['oper'] == 'convert':
|
|
convertConf(args['cfgfile'])
|
|
return()
|
|
else:
|
|
if not os.path.isfile(args['cfgfile']):
|
|
oldfile = re.sub('\.xml$', '.json', args['cfgfile'])
|
|
if os.path.isfile(oldfile):
|
|
try:
|
|
with open(oldfile, 'r') as f:
|
|
json.load(f)
|
|
args['cfgfile'] = convertConf(args['cfgfile'])
|
|
except json.decoder.JSONDecodeError:
|
|
# It's not JSON. It's either already XML or invalid config.
|
|
pass
|
|
if not os.path.isfile(args['cfgfile']):
|
|
raise OSError('{0} does not exist'.format(args['cfgfile']))
|
|
# The "Do stuff" part
|
|
bak = Backup(args)
|
|
if args['oper'] == 'list':
|
|
bak.printer()
|
|
elif args['oper'] == 'listrepos':
|
|
bak.listRepos()
|
|
elif args['oper'] == 'backup':
|
|
bak.create()
|
|
elif args['oper'] == 'init':
|
|
bak.createRepo()
|
|
elif args['oper'] == 'restore':
|
|
bak.restore()
|
|
elif args['oper'] == 'prune':
|
|
bak.prune()
|
|
return()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|