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#!/usr/bin/env python
from copy import deepcopy
import lxml.etree
import os
import sys
import Bcfg2.Options
"""
NOTE: This script takes a conservative approach when it comes to
updating your Rules. It creates a new unified-rules.xml file
without the attributes you have defined in your current rules. The
reason for this is to keep this script simple so we don't have
to go through and determine the priorities associated with your
current rules definitions.
"""
if __name__ == '__main__':
parser = Bcfg2.Options.get_parser(
description="Migrate from Bcfg2 1.0-style POSIX entries to 1.1-style "
"unified Path entries")
parser.add_options([Bcfg2.Options.Common.repository])
parser.parse()
repo = Bcfg2.Options.setup.repository
unifiedposixrules = "%s/Rules/unified-rules.xml" % repo
rulesroot = lxml.etree.Element("Rules")
for plug in ['Base', 'Bundler']:
for root, dirs, files in os.walk('%s/%s' % (repo, plug)):
if '.svn' in dirs:
dirs.remove('.svn')
for filename in files:
if filename.startswith('new'):
continue
xdata = lxml.etree.parse(os.path.join(root, filename))
# replace ConfigFile elements
for c in xdata.findall('//ConfigFile'):
parent = c.getparent()
oldc = c
c.tag = 'Path'
parent.replace(oldc, c)
# replace Directory elements
for d in xdata.findall('//Directory'):
parent = d.getparent()
oldd = d
d.tag = 'Path'
parent.replace(oldd, d)
# Create new-style Rules entry
newd = deepcopy(d)
newd.set('type', 'directory')
rulesroot.append(newd)
# replace BoundDirectory elements
for d in xdata.findall('//BoundDirectory'):
parent = d.getparent()
oldd = d
d.tag = 'BoundPath'
parent.replace(oldd, d)
# Create new-style entry
newd = deepcopy(d)
newd.set('type', 'directory')
# replace Permissions elements
for p in xdata.findall('//Permissions'):
parent = p.getparent()
oldp = p
p.tag = 'Path'
parent.replace(oldp, p)
# Create new-style Rules entry
newp = deepcopy(p)
newp.set('type', 'permissions')
rulesroot.append(newp)
# replace BoundPermissions elements
for p in xdata.findall('//BoundPermissions'):
parent = p.getparent()
oldp = p
p.tag = 'BoundPath'
parent.replace(oldp, p)
# Create new-style entry
newp = deepcopy(p)
newp.set('type', 'permissions')
# replace SymLink elements
for s in xdata.findall('//SymLink'):
parent = s.getparent()
olds = s
s.tag = 'Path'
parent.replace(olds, s)
# Create new-style Rules entry
news = deepcopy(s)
news.set('type', 'symlink')
rulesroot.append(news)
# replace BoundSymLink elements
for s in xdata.findall('//BoundSymLink'):
parent = s.getparent()
olds = s
s.tag = 'BoundPath'
parent.replace(olds, s)
# Create new-style entry
news = deepcopy(s)
news.set('type', 'symlink')
# write out the new bundle
try:
newbundle = open("%s/%s/new%s" % (repo, plug, filename), 'w')
except IOError:
print("Failed to write %s" % filename)
continue
newbundle.write(lxml.etree.tostring(xdata, pretty_print=True))
newbundle.close()
try:
newrules = open(unifiedposixrules, 'w')
rulesroot.set('priority', '1')
newrules.write(lxml.etree.tostring(rulesroot, pretty_print=True))
newrules.close()
except IOError:
print("Failed to write %s" % unifiedposixrules)
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