xml module: Make user interface much more restricted (#28657)

So the xml module has a lot of parameters that combined together do
specific things. however it does not really describe which parameters
are required together, or which ones are required.

This PR fixes that situation and makes it impossible to provide
confussing parameters combinations.

Also, `pretty_print` was used as a flag to modify the output, but also
as an action to reformat the file (without other change). This is
problematic the way it was designed. This fixes that too.

This fixes #28194
This commit is contained in:
Dag Wieers 2017-08-25 15:01:24 +02:00 committed by GitHub
parent 75293d83ca
commit 11c9756d9c

View file

@ -224,13 +224,13 @@ xmlstring:
returned: when parameter 'xmlstring' is set
'''
import copy
import json
import os
import re
import traceback
from collections import MutableMapping
import copy
from distutils.version import LooseVersion
from io import BytesIO
@ -675,11 +675,11 @@ def main():
argument_spec=dict(
path=dict(type='path', aliases=['dest', 'file']),
xmlstring=dict(type='str'),
xpath=dict(type='str', default='/'),
xpath=dict(type='str'),
namespaces=dict(type='dict', default={}),
state=dict(type='str', default='present', choices=['absent', 'present'], aliases=['ensure']),
value=dict(),
attribute=dict(),
value=dict(type='raw'),
attribute=dict(type='raw'),
add_children=dict(type='list'),
set_children=dict(type='list'),
count=dict(type='bool', default=False),
@ -690,15 +690,27 @@ def main():
backup=dict(type='bool', default=False),
),
supports_check_mode=True,
mutually_exclusive=[
['value', 'set_children'],
['value', 'add_children'],
['set_children', 'add_children'],
# TODO: Implement this as soon as #28662 (required_by functionality) is merged
# required_by=dict(
# add_children=['xpath'],
# attribute=['value'],
# set_children=['xpath'],
# value=['xpath'],
# ),
required_if=[
['content', 'attribute', ['xpath']],
['content', 'text', ['xpath']],
['count', True, ['xpath']],
['print_match', True, ['xpath']],
],
required_one_of=[
['path', 'xmlstring'],
['content', 'set_children'],
['content', 'add_children'],
['content', 'value'],
]
['add_children', 'content', 'count', 'pretty_print', 'print_match', 'set_children', 'value'],
],
mutually_exclusive=[
['add_children', 'content', 'count', 'print_match', 'set_children', 'value'],
['path', 'xmlstring'],
],
)
xml_file = module.params['path']
@ -734,7 +746,7 @@ def main():
module.fail_json(msg="The target XML source '%s' does not exist." % xml_file)
# Parse and evaluate xpath expression
if xpath:
if xpath is not None:
try:
etree.XPath(xpath)
except etree.XPathSyntaxError as e:
@ -755,24 +767,25 @@ def main():
if print_match:
do_print_match(module, doc, xpath, namespaces)
# exit
if count:
count_nodes(module, doc, xpath, namespaces)
# exit
if content == 'attribute':
get_element_attr(module, doc, xpath, namespaces)
# exit
elif content == 'text':
get_element_text(module, doc, xpath, namespaces)
# module.fail_json(msg="OK. Well, etree parsed the xml file...")
# module.exit_json(what_did={"foo": "bar"}, changed=True)
# exit
# File exists:
if state == 'absent':
# - absent: delete xpath target
delete_xpath_target(module, doc, xpath, namespaces)
# Exit
# exit
# - present: carry on
# children && value both set?: should have already aborted by now
@ -781,23 +794,32 @@ def main():
# set_children set?
if set_children:
set_target_children(module, doc, xpath, namespaces, set_children, input_type)
# exit
# add_children set?
if add_children:
add_target_children(module, doc, xpath, namespaces, add_children, input_type)
# exit
# No?: Carry on
# Is the xpath target an attribute selector?
if value is not None:
set_target(module, doc, xpath, namespaces, attribute, value)
# exit
# Format the xml only?
# If an xpath was provided, we need to do something with the data
if xpath is not None:
ensure_xpath_exists(module, doc, xpath, namespaces)
# exit
# Otherwise only reformat the xml data?
if pretty_print:
xpath = '/'
pretty(module, doc)
# exit
ensure_xpath_exists(module, doc, xpath, namespaces)
# module.fail_json(msg="don't know what to do")
module.fail_json(msg="Don't know what to do")
if __name__ == '__main__':