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#!/usr/bin/env python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import collections
import copy
import os
import sys
import traceback
import yaml
import six
import re
#convert comments into 'comments<num>: ...' YAML
def to_commented_yaml(filename):
out_str = ''
last_non_comment_spaces = ''
with open(filename, 'r') as f:
comment_count = 0
for line in f:
char_count = 0
spaces = ''
for char in line:
char_count += 1
if char == ' ':
spaces+=' '
next;
elif char == '#':
comment_count += 1
comment = line[char_count:-1]
out_str += "%scomment%i_%i: '%s'\n" % (last_non_comment_spaces, comment_count, len(spaces), comment)
break;
else:
last_non_comment_spaces = spaces
out_str += line
#inline comments check
m = re.match(".*:.*#(.*)", line)
if m:
comment_count += 1
out_str += "%s inline_comment%i: '%s'\n" % (last_non_comment_spaces, comment_count, m.group(1))
break;
with open(filename, 'w') as f:
f.write(out_str)
return out_str
#convert back to normal #commented YAML
def to_normal_yaml(filename):
with open(filename, 'r') as f:
data = f.read()
out_str = ''
next_line_break = False
for line in data.split('\n'):
m = re.match(" +comment[0-9]+_([0-9]+): '(.*)'.*", line) #normal comments
i = re.match(" +inline_comment[0-9]+: '(.*)'.*", line) #inline comments
if m:
if next_line_break:
out_str += '\n'
next_line_break = False
for x in range(0, int(m.group(1))):
out_str += " "
out_str += "#%s\n" % m.group(2)
elif i:
out_str += " #%s\n" % i.group(1)
next_line_break = False
else:
if next_line_break:
out_str += '\n'
out_str += line
next_line_break = True
if next_line_break:
out_str += '\n'
with open(filename, 'w') as f:
f.write(out_str)
return out_str
class description(six.text_type):
pass
# FIXME: Some of this duplicates code from build_endpoint_map.py, we should
# refactor to share the common code
class TemplateDumper(yaml.SafeDumper):
def represent_ordered_dict(self, data):
return self.represent_dict(data.items())
def description_presenter(self, data):
if '\n' in data:
style = '>'
else:
style = ''
return self.represent_scalar(
yaml.resolver.BaseResolver.DEFAULT_SCALAR_TAG, data, style=style)
# We load mappings into OrderedDict to preserve their order
class TemplateLoader(yaml.SafeLoader):
def construct_mapping(self, node):
self.flatten_mapping(node)
return collections.OrderedDict(self.construct_pairs(node))
TemplateDumper.add_representer(description,
TemplateDumper.description_presenter)
TemplateDumper.add_representer(collections.OrderedDict,
TemplateDumper.represent_ordered_dict)
TemplateLoader.add_constructor(yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
TemplateLoader.construct_mapping)
def write_template(template, filename=None):
with open(filename, 'w') as f:
yaml.dump(template, f, TemplateDumper, width=120, default_flow_style=False)
def exit_usage():
print('Usage %s <yaml file>' % sys.argv[0])
sys.exit(1)
def convert(filename):
print('Converting %s' % filename)
try:
tpl = yaml.load(open(filename).read(), Loader=TemplateLoader)
except Exception:
print(traceback.format_exc())
return 0
# Check which path we need for run-os-net-config.sh because we have
# nic config templates in the top-level and network/config
script_paths = ['network/scripts/run-os-net-config.sh',
'../../scripts/run-os-net-config.sh']
script_path = None
for p in script_paths:
check_path = os.path.join(os.path.dirname(filename), p)
if os.path.isfile(check_path):
print("Found %s, using %s" % (check_path, p))
script_path = p
if script_path is None:
print("Error couldn't find run-os-net-config.sh relative to filename")
exit_usage()
for r in (tpl.get('resources', {})).items():
if (r[1].get('type') == 'OS::Heat::StructuredConfig' and
r[1].get('properties', {}).get('group') == 'os-apply-config' and
r[1].get('properties', {}).get('config', {}).get('os_net_config')):
#print("match %s" % r[0])
new_r = collections.OrderedDict()
new_r['type'] = 'OS::Heat::SoftwareConfig'
new_r['properties'] = collections.OrderedDict()
new_r['properties']['group'] = 'script'
old_net_config = r[1].get(
'properties', {}).get('config', {}).get('os_net_config')
new_config = {'str_replace': collections.OrderedDict()}
new_config['str_replace']['template'] = {'get_file': script_path}
new_config['str_replace']['params'] = {'$network_config': old_net_config}
new_r['properties']['config'] = new_config
tpl['resources'][r[0]] = new_r
else:
print("No match %s" % r[0])
return 0
# Preserve typical HOT template key ordering
od_result = collections.OrderedDict()
# Need to bump the HOT version so str_replace supports serializing to json
od_result['heat_template_version'] = "2016-10-14"
if tpl.get('description'):
od_result['description'] = description(tpl['description'])
od_result['parameters'] = tpl['parameters']
od_result['resources'] = tpl['resources']
od_result['outputs'] = tpl['outputs']
#print('Result:')
#print('%s' % yaml.dump(od_result, Dumper=TemplateDumper, width=120, default_flow_style=False))
#print('---')
#replace = raw_input(
#"Replace file %s? Answer y/n" % filename).lower() == 'y'
#if replace:
#print("Replace %s" % filename)
write_template(od_result, filename)
#else:
# print("NOT replacing %s" % filename)
# return 0
return 1
if len(sys.argv) < 2:
exit_usage()
path_args = sys.argv[1:]
exit_val = 0
num_converted = 0
for base_path in path_args:
if os.path.isfile(base_path) and base_path.endswith('.yaml'):
to_commented_yaml(base_path)
num_converted += convert(base_path)
to_normal_yaml(base_path)
else:
print('Unexpected argument %s' % base_path)
exit_usage()
if num_converted == 0:
exit_val = 1
sys.exit(exit_val)
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