126 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			126 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			Python
		
	
	
	
"""
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    instantiating, managing and rsyncing to hosts
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"""
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import py
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import sys, os
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from py.__.execnet.channel import RemoteError
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NO_ENDMARKER_WANTED = object()
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class GatewayManager:
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    RemoteError = RemoteError
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    def __init__(self, specs, defaultchdir="pyexecnetcache"):
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        self.gateways = []
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        self.specs = []
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        for spec in specs:
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            if not isinstance(spec, py.execnet.XSpec):
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                spec = py.execnet.XSpec(spec)
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            if not spec.chdir and not spec.popen:
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                spec.chdir = defaultchdir
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            self.specs.append(spec)
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        self.api = py._com.PluginAPI(py.execnet._API)
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    def makegateways(self):
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        assert not self.gateways
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        for spec in self.specs:
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            gw = py.execnet.makegateway(spec)
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            self.gateways.append(gw)
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            gw.id = "[%s]" % len(self.gateways)
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            self.api.pyexecnet_gwmanage_newgateway(
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                gateway=gw, platinfo=gw._rinfo())
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    def getgateways(self, remote=True, inplacelocal=True):
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        if not self.gateways and self.specs:
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            self.makegateways()
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        l = []
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        for gw in self.gateways:
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            if gw.spec._samefilesystem():
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                if inplacelocal:
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                    l.append(gw)
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            else:
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                if remote:
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                    l.append(gw)
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        return py.execnet.MultiGateway(gateways=l)
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    def multi_exec(self, source, inplacelocal=True):
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        """ remote execute code on all gateways. 
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            @param inplacelocal=False: don't send code to inplacelocal hosts. 
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        """
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        multigw = self.getgateways(inplacelocal=inplacelocal)
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        return multigw.remote_exec(source)
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    def multi_chdir(self, basename, inplacelocal=True):
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        """ perform a remote chdir to the given path, may be relative. 
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            @param inplacelocal=False: don't send code to inplacelocal hosts. 
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        """ 
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        self.multi_exec("import os ; os.chdir(%r)" % basename, 
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                        inplacelocal=inplacelocal).waitclose()
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    def rsync(self, source, notify=None, verbose=False, ignores=None):
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        """ perform rsync to all remote hosts. 
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        """ 
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        rsync = HostRSync(source, verbose=verbose, ignores=ignores)
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        seen = {}
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        for gateway in self.gateways:
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            spec = gateway.spec
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            if not spec._samefilesystem():
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                if spec in seen:
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                    continue 
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                def finished():
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                    if notify:
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                        notify("rsyncrootready", spec, source)
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                rsync.add_target_host(gateway, finished=finished)
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                seen[spec] = gateway
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        if seen:
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            self.api.pyexecnet_gwmanage_rsyncstart(
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                source=source, 
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                gateways=seen.values(),
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            )
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            rsync.send()
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            self.api.pyexecnet_gwmanage_rsyncfinish(
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                source=source, 
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                gateways=seen.values()
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            )
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    def exit(self):
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        while self.gateways:
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            gw = self.gateways.pop()
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            gw.exit()
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class HostRSync(py.execnet.RSync):
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    """ RSyncer that filters out common files 
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    """
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    def __init__(self, sourcedir, *args, **kwargs):
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        self._synced = {}
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        ignores= None
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        if 'ignores' in kwargs:
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            ignores = kwargs.pop('ignores')
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        self._ignores = ignores or []
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        super(HostRSync, self).__init__(sourcedir=sourcedir, **kwargs)
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    def filter(self, path):
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        path = py.path.local(path)
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        if not path.ext in ('.pyc', '.pyo'):
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            if not path.basename.endswith('~'): 
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                if path.check(dotfile=0):
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                    for x in self._ignores:
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                        if path == x:
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                            break
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                    else:
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                        return True
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    def add_target_host(self, gateway, finished=None):
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        remotepath = os.path.basename(self._sourcedir)
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        super(HostRSync, self).add_target(gateway, remotepath, 
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                                          finishedcallback=finished,
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                                          delete=True,)
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    def _report_send_file(self, gateway, modified_rel_path):
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        if self._verbose:
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            path = os.path.basename(self._sourcedir) + "/" + modified_rel_path
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            remotepath = gateway.spec.chdir
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            print '%s:%s <= %s' % (gateway.remoteaddress, remotepath, path)
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