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import argparse
import yaml
import os.path
from jinja2 import FileSystemLoader, Environment
import jenkins
import logging
class LoaderMeta(type):
def __new__(metacls, __name__, __bases__, __dict__):
"""Add include constructer to class."""
# register the include constructor on the class
cls = super().__new__(metacls, __name__, __bases__, __dict__)
cls.add_constructor('!include', cls.construct_include)
return cls
class Loader(yaml.Loader, metaclass=LoaderMeta):
"""YAML Loader with `!include` constructor."""
def __init__(self, stream):
"""Initialise Loader."""
try:
self._root = os.path.split(stream.name)[0]
except AttributeError:
self._root = os.path.curdir
super().__init__(stream)
def construct_include(self, node):
"""Include file referenced at node."""
filename = os.path.abspath(os.path.join(
self._root, self.construct_scalar(node)
))
extension = os.path.splitext(filename)[1].lstrip('.')
with open(filename, 'r') as f:
if extension in ('yaml', 'yml'):
return yaml.load(f, Loader)
else:
return ''.join(f.readlines())
def jinja2_from_template(directory, template_name, data):
loader = FileSystemLoader(directory)
env = Environment(loader=loader)
template = env.get_template(template_name)
return template.render(hosts=data)
def get_parser():
parser = argparse.ArgumentParser()
parser.add_argument('-u', '--username', type=str, required=True,
help='Username for Jenkins server')
parser.add_argument('-p', '--password', type=str, required=True,
help='Password for Jenkins server')
parser.add_argument('-s', '--server', type=str,
default='https://ci.linaro.org',
help='Jenkins server URL. e.g. http://localhost:8080')
parser.add_argument('-i', '--inventory', type=str, default='hosts.yml',
help='specify inventory host path')
parser.add_argument('-l', '--loglevel', default='INFO',
help="Setting logging level, default: %(default)s")
parser.add_argument('--dryrun', action='store_true',
help='Do not publish to Jenkins')
return parser
if __name__ == '__main__':
parser = get_parser()
args = parser.parse_args()
logging.basicConfig(level=args.loglevel)
with open(args.inventory, 'r') as f:
data = yaml.load(f, Loader)
logging.debug(data)
template_output = jinja2_from_template(
'./templates',
'configure-yadocker-cloud.groovy.j2', data)
server = jenkins.Jenkins(args.server, username=args.username,
password=args.password)
if args.dryrun:
with open('/tmp/configure-yadocker-cloud.groovy', 'w') as fw:
fw.write(template_output)
template_output = jinja2_from_template(
'./templates',
'configure-yadocker-cloud.groovy-dryrun.j2', data)
publishdry = server.run_script(template_output)
logging.info(publishdry)
else:
publish = server.run_script(template_output)
logging.info(publish)
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