156 lines
5.7 KiB
Python
156 lines
5.7 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# 2010-2011 Nico Schottelius (nico-cdist at schottelius.org)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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import io
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import logging
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#import os
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#import stat
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#import shutil
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#import sys
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#import tempfile
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#import time
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#
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#import cdist.core
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#import cdist.exec
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log = logging.getLogger(__name__)
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class Explorer:
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"""Execute explorers"""
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def __init__(self,
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object_base_path,
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remote_global_explorer_path,
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remote_type_path,
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remote_object_path,
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type_path,
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exec_hint):
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self.object_base_path = object_base_path
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self.remote_global_explorer_path = remote_global_explorer_path
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self.remote_type_path = remote_type_path
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self.remote_object_path = remote_object_path
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self.exec_hint = exec_hint
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def run_type_explorer(self, cdist_object)
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"""Run type specific explorers for objects"""
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cdist_type = cdist_object.type
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self.transfer_type_explorers(cdist_type)
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cmd = []
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cmd.append("__explorer=" + self.remote_global_explorer_path)
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cmd.append("__type_explorer=" + os.path.join(
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self.remote_type_path,
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cdist_type.explorer_path))
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cmd.append("__object=" + os.path.join(
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self.remote_object_path,
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cdist_object.path))
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cmd.append("__object_id=" + cdist_object.object_id)
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cmd.append("__object_fq=" + cdist_object.name)
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# Need to transfer at least the parameters for objects to be useful
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self.transfer_object_parameter(cdist_object)
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outputs = {}
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for explorer in cdist_type.explorers:
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remote_cmd = cmd + [os.path.join(self.remote_type_path,
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cdist_type.explorer_path, explorer)]
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outputs[explorer] = io.StringIO()
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log.debug("%s exploring %s using %s storing to %s",
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cdist_object, explorer, remote_cmd, output)
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cdist.exec.run_or_fail(remote_cmd, stdout=outputs[explorer], remote_prefix=True)
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return outputs
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def run_global_explorers(self):
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"""Run global explorers"""
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log.info("Running global explorers")
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src_path = self.global_explorer_path
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dst_path = self.remote_global_explorer_path
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self.transfer_path(src_path, dst_path)
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outputs = {}
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for explorer in os.listdir(src_path):
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outputs[explorer] = io.StringIO()
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cmd = []
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cmd.append("__explorer=" + remote_dst_path)
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cmd.append(os.path.join(remote_dst_path, explorer))
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cdist.exec.run_or_fail(cmd, stdout=outputs[explorer], remote_prefix=True)
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def transfer_object_parameter(self, cdist_object):
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"""Transfer the object parameter to the remote destination"""
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src = os.path.join(self.object_base_path,
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cdist_object.parameter_path)
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dst = os.path.join(self.remote_object_path,
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cdist_object.parameter_path)
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# Synchronise parameter dir afterwards
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self.remote_mkdir(dst)
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self.transfer_path(src, dst)
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def transfer_global_explorers(self):
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"""Transfer the global explorers"""
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self.remote_mkdir(self.remote_global_explorer_path)
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self.transfer_path(self.global_explorer_path,
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self.remote_global_explorer_path)
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def transfer_type_explorers(self, cdist_type):
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"""Transfer explorers of a type, but only once"""
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if cdist_type.transferred_explorers:
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log.debug("Skipping retransfer for explorers of %s", cdist_type)
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return
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else:
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log.debug("Ensure no retransfer for %s", cdist_type)
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# Do not retransfer
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cdist_type.transferred_explorers = True
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explorers = cdist_type.explorers
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if len(explorers) > 0:
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rel_path = cdist_type.explorer_path
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src = os.path.join(self.type_base_path, rel_path)
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dst = os.path.join(self.remote_type_path, rel_path)
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# Ensure full path until type exists:
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# /var/lib/cdist/conf/type/__directory/explorer
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# /var/lib/cdist/conf/type/__directory may not exist,
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# but remote_mkdir uses -p to fix this
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self.remote_mkdir(dst)
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self.transfer_path(src, dst)
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def remote_mkdir(self, directory):
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"""Create directory on remote side"""
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cdist.exec.run_or_fail(["mkdir", "-p", directory], remote_prefix=True)
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def remove_remote_path(self, destination):
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"""Ensure path on remote side vanished"""
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cdist.exec.run_or_fail(["rm", "-rf", destination], remote_prefix=True)
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def transfer_path(self, source, destination):
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"""Transfer directory and previously delete the remote destination"""
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self.remove_remote_path(destination)
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cdist.exec.run_or_fail(os.environ['__remote_copy'].split() +
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["-r", source, self.target_host + ":" + destination])
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