adding some stuff for repomirror
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8C004C2F93481F6B
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from . import logger
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##
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import logging
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##
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from . import config
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from . import constants
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_logger = logging.getLogger()
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class Sync(object):
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def __init__(self, cfg = None, dummy = False, distro = None, logdir = None, *args, **kwargs):
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_args = dict(locals())
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del(_args['self'])
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_logger.debug('Sync class instantiated with args: {0}'.format(_args))
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self.cfg = config.Config(cfg)
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import copy
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import datetime
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import os
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import logging
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import re
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import shutil
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##
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import requests
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import requests.auth
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from lxml import etree
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_logger = logging.getLogger()
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def create_default_cfg():
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# Create a stripped sample config.
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ws_re = re.compile(r'^\s*$')
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cur_dir = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
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samplexml = os.path.abspath(os.path.join(cur_dir, '..', 'example.config.xml'))
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with open(samplexml, 'rb') as fh:
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xml = etree.fromstring(fh.read())
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# Create a stripped sample config.
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# First we strip comments (and fix the ensuing whitespace).
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# etree has a .canonicalize(), but it chokes on a default namespace.
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# https://bugs.launchpad.net/lxml/+bug/1869455
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# So everything we do is kind of a hack.
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# for c in xml.xpath("//comment()"):
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# parent = c.getparent()
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# parent.remove(c)
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xmlstr = etree.tostring(xml, with_comments = False, method = 'c14n', pretty_print = True).decode('utf-8')
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newstr = []
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for line in xmlstr.splitlines():
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r = ws_re.search(line)
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if not r:
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newstr.append(line.strip())
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xml = etree.fromstring(''.join(newstr).encode('utf-8'))
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# Remove text and attr text.
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xpathq = "descendant-or-self::*[namespace-uri()!='']"
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for e in xml.xpath(xpathq):
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if e.tag == '{{{0}}}mirror'.format(xml.nsmap[None]):
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continue
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if e.text is not None and e.text.strip() != '':
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e.text = ''
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for k, v in e.attrib.items():
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if v is not None:
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e.attrib[k] = ''
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# Remove multiple children of same type to simplify.
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for e in xml.xpath(xpathq):
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if e.tag == '{{{0}}}mirror'.format(xml.nsmap[None]):
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continue
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parent = e.getparent()
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try:
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for idx, child in enumerate(parent.findall(e.tag)):
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if idx == 0:
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continue
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parent.remove(child)
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except AttributeError:
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pass
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# And add a comment pointing them to the fully commented config.
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xml.insert(0, etree.Comment(('\n Please reference the fully commented example.config.xml found either '
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'at:\n '
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' * {0}\n * https://git.square-r00t.net/RepoMirror/tree/'
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'example.config.xml\n and then configure this according to those '
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'instructions.\n ').format(samplexml)))
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return(etree.tostring(xml,
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pretty_print = True,
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with_comments = True,
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with_tail = True,
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encoding = 'UTF-8',
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xml_declaration = True))
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class Config(object):
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default_xsd = 'http://schema.xml.r00t2.io/projects/repomirror.xsd'
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default_xml_path = '~/.config/repomirror.xml'
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def __init__(self, xml_path, *args, **kwargs):
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if not xml_path:
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xml_path = self.default_xml_path
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self.xml_path = os.path.abspath(os.path.expanduser(xml_path))
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if not os.path.isfile(self.xml_path):
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with open(self.xml_path, 'wb') as fh:
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fh.write(create_default_cfg())
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_logger.error(('{0} does not exist so a sample configuration file has been created in its place. '
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'Be sure to configure it appropriately.').format(self.default_xml_path))
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raise ValueError('Config does not exist')
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else:
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with open(xml_path, 'rb') as fh:
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self.raw = fh.read()
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self.xml = None
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self.xsd = None
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self.ns_xml = None
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self.tree = None
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self.ns_tree = None
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self.defaults_parser = None
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self.parse_xml()
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_logger.info('Instantiated {0}.'.format(type(self).__name__))
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def get_xsd(self):
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raw_xsd = None
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base_url = None
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xsi = self.xml.nsmap.get('xsi', 'http://www.w3.org/2001/XMLSchema-instance')
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schemaLocation = '{{{0}}}schemaLocation'.format(xsi)
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schemaURL = self.xml.attrib.get(schemaLocation, self.default_xsd)
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split_url = schemaURL.split()
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if len(split_url) == 2: # a properly defined schemaLocation
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schemaURL = split_url[1]
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else:
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schemaURL = split_url[0] # a LAZY schemaLocation
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if schemaURL.startswith('file://'):
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schemaURL = re.sub(r'^file://', r'', schemaURL)
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with open(schemaURL, 'rb') as fh:
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raw_xsd = fh.read()
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base_url = os.path.dirname(schemaURL) + '/'
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else:
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req = requests.get(schemaURL)
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if not req.ok:
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raise RuntimeError('Could not download XSD')
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raw_xsd = req.content
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base_url = os.path.split(req.url)[0] + '/' # This makes me feel dirty.
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self.xsd = etree.XMLSchema(etree.XML(raw_xsd, base_url = base_url))
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return(None)
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def parse_xml(self):
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self.parse_raw()
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self.get_xsd()
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self.populate_defaults()
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self.validate()
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return(None)
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def parse_raw(self, parser = None):
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self.xml = etree.fromstring(self.raw, parser = parser)
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self.ns_xml = etree.fromstring(self.raw, parser = parser)
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self.tree = self.xml.getroottree()
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self.ns_tree = self.ns_xml.getroottree()
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self.tree.xinclude()
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self.ns_tree.xinclude()
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self.strip_ns()
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return(None)
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def populate_defaults(self):
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if not self.xsd:
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self.get_xsd()
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if not self.defaults_parser:
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self.defaults_parser = etree.XMLParser(schema = self.xsd, attribute_defaults = True)
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self.parse_raw(parser = self.defaults_parser)
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return(None)
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def remove_defaults(self):
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self.parse_raw()
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return(None)
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def strip_ns(self, obj = None):
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# https://stackoverflow.com/questions/30232031/how-can-i-strip-namespaces-out-of-an-lxml-tree/30233635#30233635
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xpathq = "descendant-or-self::*[namespace-uri()!='']"
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if not obj:
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for x in (self.tree, self.xml):
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for e in x.xpath(xpathq):
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e.tag = etree.QName(e).localname
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elif isinstance(obj, (etree._Element, etree._ElementTree)):
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obj = copy.deepcopy(obj)
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for e in obj.xpath(xpathq):
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e.tag = etree.QName(e).localname
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return(obj)
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else:
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raise ValueError('Did not know how to parse obj parameter')
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return(None)
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def validate(self):
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if not self.xsd:
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self.get_xsd()
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self.xsd.assertValid(self.ns_tree)
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return(None)
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PROTO_DEF_PORTS = {'ftp': 21,
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'rsync': 873}
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import logging
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import logging.handlers
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import os
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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_journald = True
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except ImportError:
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_has_journald = False
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def preplog(logfile = None):
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if not logfile:
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if os.geteuid() == 0:
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logfile = '/var/log/repo/main.log'
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else:
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logfile = '~/.cache/repo.log'
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# Prep the log file.
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logfile = os.path.abspath(os.path.expanduser(logfile))
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os.makedirs(os.path.dirname(logfile), exist_ok = True, mode = 0o0700)
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if not os.path.isfile(logfile):
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with open(logfile, 'w') as fh:
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fh.write('')
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os.chmod(logfile, 0o0600)
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return(logfile)
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# And set up logging.
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_cfg_args = {'handlers': [],
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'level': logging.DEBUG}
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if _has_journald:
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# There were some weird changes somewhere along the line.
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try:
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# But it's *probably* this one.
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h = journal.JournalHandler()
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except AttributeError:
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h = journal.JournaldLogHandler()
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# Systemd includes times, so we don't need to.
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h.setFormatter(logging.Formatter(style = '{',
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fmt = ('{name}:{levelname}:{name}:{filename}:'
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'{funcName}:{lineno}: {message}')))
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_cfg_args['handlers'].append(h)
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filehandler = logging.handlers.RotatingFileHandler(preplog(),
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encoding = 'utf8',
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# Disable rotating for now.
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# maxBytes = 50000000000,
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# backupCount = 30
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)
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filehandler.setFormatter(logging.Formatter(style = '{',
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fmt = ('{asctime}:'
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'{levelname}:{name}:{filename}:'
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'{funcName}:{lineno}: {message}')))
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_cfg_args['handlers'].append(filehandler)
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logging.basicConfig(**_cfg_args)
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logger = logging.getLogger('Repo Mirror')
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logger.info('Logging initialized.')
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#!/usr/bin/env python3
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import argparse
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import os
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import pathlib
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import sys
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##
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##
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_cur_file = pathlib.Path(os.path.abspath(os.path.expanduser(__file__))).resolve()
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_cur_path = os.path.dirname(_cur_file)
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sys.path.insert(1, _cur_path)
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import repomirror
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if os.geteuid() == 0:
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_def_logdir = '/var/log/repo'
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else:
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_def_logdir = '~/.cache/logs'
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def parseArgs():
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args = argparse.ArgumentParser(description = 'Sync repositories for various distributions to local paths')
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args.add_argument('-c', '--config',
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default = '~/.config/repomirror.xml',
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dest = 'cfg',
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help = ('The path to the config file. If it does not exist, a bare version will be created. '
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'Default: ~/.config/repomirror.xmlost'))
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args.add_argument('-n', '--dry-run',
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action = 'store_true',
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dest = 'dummy',
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help = ('If specified, do not actually sync anything (other than timestamp files if '
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'applicable to determine logic); do not actually sync any repositories'))
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args.add_argument('-d', '--distro',
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dest = 'distro',
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action = 'append',
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help = ('If specified, only sync the specified distro in the config file (otherwise sync all '
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'specified). May be given multiple times'))
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args.add_argument('-l', '--logdir',
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default = _def_logdir,
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dest = 'logdir',
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help = ('The path to the directory where logs should be written. The actual log files will be '
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'named after their respective distro names in the config file. '
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'Defailt: {0}'.format(_def_logdir)))
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return(args)
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def main():
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args = parseArgs().parse_args()
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r = repomirror.Sync()
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return(None)
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if __name__ == '__main__':
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main()
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<?xml version="1.0" encoding="UTF-8" ?>
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<!--
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This is by default placed in ~/.config/repomirror.xml
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-->
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<mirror xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns="https://git.square-r00t.net/RepoMirror/"
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xsi:schemaLocation="https://git.square-r00t.net/RepoMirror/ http://schema.xml.r00t2.io/projects/repomirror.xsd">
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<distro name="arch">
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<!--
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The local path to where the hierarchy/files should be synced to.
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-->
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<dest>/srv/repos/arch/.</dest>
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<!--
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The local file to update with a timestamp with the last time we checked for updates.
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-->
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<lastLocalCheck>/srv/http/arch.lastcheck</lastLocalCheck>
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<!--
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The file to update with a timestamp with the last time we synced from our upstream.
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-->
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<lastLocalSync>/srv/http/arch.lastsync</lastLocalSync>
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<!--
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The path to a file on the upstream(s) that gives a time when it last updated.
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-->
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<lastRemoteUpdate>/lastupdate</lastRemoteUpdate>
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<!--
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The path to a file on the upstream(s) that gives a time when it last synced from its upstream.
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-->
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<lastRemoteSync>/lastsync</lastRemoteSync>
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<!--
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The path that must be currently mounted for sync to proceed.
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-->
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<mountCheck>/</mountCheck>
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<!--
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The speed to cap socket bandwidth at (in KiB). Decimals are okay.
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-->
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<bwlimit>7000</bwlimit>
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<upstream>
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<!--
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The following example uses "rsync://arch.mirror.constant.com/archlinux/"
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(https://www.archlinux.org/mirrors/constant.com/1008/)
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-->
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<!--
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One of:
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* rsync
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* ftp
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-->
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<syncType>rsync</syncType>
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<!--
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ONLY the domain goes here.
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-->
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<domain>arch.mirror.constant.com</domain>
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<!--
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If not specified,the protocol's default port will be used.
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-->
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<port>873</port>
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<!--
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The *remote* path part of the URI. The leading / is necessary. A trailing one will be assumed.
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-->
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<path>/archlinux/</path>
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</upstream>
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<!--
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Multiple upstreams can be specified. They are tried in order specified and if connection fails or times out,
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the next one will be tried until no more specified upstreams exist.
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-->
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<upstream>
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<syncType>rsync</syncType>
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<domain>arch.mirror.square-r00t.net</domain>
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<path>/arch/</path>
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</upstream>
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<upstream>
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<!--
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Only passive (PASV) mode for FTP is supported.
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-->
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<syncType>ftp</syncType>
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<domain>sub.domain.tld</domain>
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<port>21</port>
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<path>/distros/archlinux/</path>
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</upstream>
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</distro>
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<distro name="centos"/>
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</mirror>
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