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#!/usr/bin/python
# Copyright (c) 2015, cPanel, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import os, glob, re, tempfile
from yum.plugins import PluginYumExit, TYPE_CORE, TYPE_INTERACTIVE
requires_api_version = '2.3'
plugin_type = (TYPE_CORE, TYPE_INTERACTIVE)
def_base_dir = '/etc/yum/universal-hooks';
# conduit object info http://sourcecodebrowser.com/yum/2.4.0/namespaceyum_1_1plugins.html
# TODO: help/docs the way yum plugins do them
def _run_dir(dir, conduit, args = ''):
dir.rstrip('*');
dir.rstrip('/');
if not os.path.isdir(dir):
return None
# TODO/YAGNI?: if yum called w/ --quiet: hide output from system() && do not call conduit.info()
# TODO/YAGNI?: if yum called w/ --verbose also output pre/post "running $cmd" region markers
# TODO: under dry run do nto run scripts just note that they would have been
for script in sorted(glob.glob(dir + "/*")):
if (os.access(script, os.X_OK)):
# TODO/YAGNI?: if exit is ??? raise PluginYumExit("!!!! " + script + " said it was time to stop");
if (len(args)):
exit = os.system(script + ' ' + args)
if(exit != 0):
conduit.info(2, "!!!! \"" + script + ' ' + args + "\" did not exit cleanly: " + str(exit))
else:
exit = os.system(script)
if(exit != 0):
conduit.info(2, "!!!! " + script + " did not exit cleanly: " + str(exit))
else:
conduit.info(2, "!!!! " + script + ' is not executable')
def _run_pkg_dirs(base_dir, conduit, slot):
ts = conduit.getTsInfo()
# setup __WILDCARD__ data for the slot
wc_slot_dir = base_dir + "/multi_pkgs/" + slot
wildcard_list = {};
for path in glob.glob(wc_slot_dir + "/*"):
if os.path.isdir(path):
path = os.path.basename(os.path.normpath(path))
regx = path;
regx = regx.replace("__WILDCARD__",".*")
regx = re.compile("^" + regx + "$")
wildcard_list[path] = regx
wildcard_to_run = {};
# Get a temp file for writing package names to
pkgs_file_path = tempfile.NamedTemporaryFile()
members_seen = {}
members = ts.getMembers()
for member in list(set(members)):
if members_seen.has_key(member.name):
continue
members_seen[member.name] = 1
# TODO/YAGNI?: set state to a normalized 'not_installed' 'updatable' 'installed' and pass as third arg to _run_dir()
# This is helpful so scripts don't have to decifer the meaning of obtuse values.
# It is also very tricky as the various state values (member.current_state, member.output_state, member.po.state, member.ts_state) are crazy, e.g.:
# Doing a reinstall member.current_state was 70 which means not installed per http://yum.baseurl.org/api/yum-3.2.26/yum.constants-module.html (which can be brought in via 'from yum.constants import *').
pkg = member.name
pkgs_file_path.write(pkg + "\n")
pkgs_file_path.flush()
_run_dir(base_dir + "/pkgs/" + pkg + "/" + slot, conduit)
# note any __WILDCARD__ that need to run for pkg
for wc in wildcard_list:
if wildcard_list[wc].search(pkg):
wildcard_to_run[wc] = 1
# call _run_dir on any __WILDCARD__ paths that match the pkg
for wc_dir in wildcard_to_run:
_run_dir(wc_slot_dir + "/" + wc_dir, conduit, "--pkg_list=" + pkgs_file_path.name )
# Close our packages file handle
pkgs_file_path.close()
def config_hook(conduit):
"""
Called first as plugins are initialised. Plugins that need to extend Yum's
configuration files or command line options should do so during this slot.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/config", conduit)
def postconfig_hook(conduit):
"""
Called immediately after Yum's config object is initialised. Useful for
extending variables or modifying items in the config, for example the
$ variables that are used in repo configuration.
Note: Only available in yum 3.1.7 or later
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/postconfig", conduit)
def init_hook(conduit):
"""
Called early in Yum's initialisation. May be used for general plugin
related initialisation.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/init", conduit)
def predownload_hook(conduit):
"""
Called just before Yum starts downloads of packages. Plugins may access
information about the packages to be downloaded here.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/predownload", conduit)
def postdownload_hook(conduit):
"""
Called just after Yum finishes package downloads. Plugins may access
error information about the packages just downloaded.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/postdownload", conduit)
def prereposetup_hook(conduit):
"""
Called just before Yum initialises its repository information.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/prereposetup", conduit)
def postreposetup_hook(conduit):
"""
Called just after Yum initialises its repository information.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/postreposetup", conduit);
def exclude_hook(conduit):
"""
Called after package inclusion and exclusions are processed. Plugins
may modify package exclusions here.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/exclude", conduit);
def preresolve_hook(conduit):
"""
Called before Yum begins package resolution.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/preresolve", conduit);
def postresolve_hook(conduit):
"""
Called just after Yum finishes package resolution.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/postresolve", conduit);
def pretrans_hook(conduit):
"""
Called before Yum begins the RPM update transation.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_pkg_dirs(base_dir, conduit, 'pretrans');
_run_dir(base_dir + "/pretrans", conduit);
def posttrans_hook(conduit):
"""
Called just after Yum has finished the RPM update transation.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_pkg_dirs(base_dir, conduit, 'posttrans')
_run_dir(base_dir + "/posttrans", conduit)
def close_hook(conduit):
"""
Called as Yum is performing a normal exit. Plugins may wish to
perform cleanup functions here.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/close", conduit);
def clean_hook(conduit):
"""
Called during Yum's cleanup. This slot will be executed when Yum
is run with the parameters 'clean all' or 'clean plugins'.
"""
base_dir = conduit.confString('main','base_dir',def_base_dir)
_run_dir(base_dir + "/clean", conduit);