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# Copyright 2017-present Open Networking Foundation
#
# 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.
#!/usr/bin/python
import argparse
from generator import *
parse = argparse.ArgumentParser(description='XOS Generative Toolchain')
parse.add_argument('--rev', dest='rev', action='store_true',default=False, help='Convert proto to xproto')
parse.add_argument('--output', dest='output', action='store',default=None, help='Destination dir')
parse.add_argument('--attic', dest='attic', action='store',default=None, help='The location at which static files are stored')
parse.add_argument('--kvpairs', dest='kv', action='store',default=None, help='Key value pairs to make available to the target')
parse.add_argument('--write-to-file', dest='write_to_file', choices = ['single', 'model', 'target'], action='store',default=None, help='Single output file (single) or output file per model (model) or let target decide (target)')
group = parse.add_mutually_exclusive_group()
group.add_argument('--dest-file', dest='dest_file', action='store',default=None, help='Output file name (if write-to-file is set to single)')
group.add_argument('--dest-extension', dest='dest_extension', action='store',default=None, help='Output file extension (if write-to-file is set to single)')
group = parse.add_mutually_exclusive_group(required=True)
group.add_argument('--target', dest='target', action='store',default=None, help='Output format, corresponding to <output>.yaml file')
group.add_argument('--checkers', dest='checkers', action='store', default=None, help='Comma-separated list of static checkers')
parse.add_argument('files', metavar='<input file>', nargs='+', action='store', help='xproto files to compile')
CHECK = 1
GEN = 2
class XosGen:
@staticmethod
def init(args=None):
if not args:
args = parse.parse_args()
args.quiet = False
if args.target:
op = GEN
subdir = '/targets/'
elif args.checkers:
op = CHECK
subdir = '/checkers/'
else:
parse.error("At least one of --target and --checkers is required")
operators = args.checkers.split(',') if hasattr(args, 'checkers') and args.checkers else [args.target]
for i in xrange(len(operators)):
if not '/' in operators[i]:
# if the target is not a path, it refer to a library included one
operators[i] = os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + subdir + operators[i])
if not os.path.isabs(operators[i]):
operators[i] = os.path.abspath(os.getcwd() + '/' + operators[i])
if op == GEN:
# convert output to absolute path
if args.output is not None and not os.path.isabs(args.output):
args.output = os.path.abspath(os.getcwd() + '/' + args.output)
operator = operators[0]
# check if there's a line that starts with +++ in the target
# if so, then the output file names are left to the target to decide
# also, if dest-file or dest-extension are supplied, then an error is generated.
plusplusplus = reduce(lambda acc, line: True if line.startswith('+++') else acc, open(operator).read().splitlines(), False)
if plusplusplus and args.write_to_file != 'target':
parse.error('%s chooses the names of the files that it generates, you must set --write-to-file to "target"' % operator)
if args.write_to_file != 'single' and (args.dest_file):
parse.error('--dest-file requires --write-to-file to be set to "single"')
if args.write_to_file != 'model' and (args.dest_extension):
parse.error('--dest-extension requires --write-to-file to be set to "model"')
else:
if args.write_to_file or args.dest_extension:
parse.error('Checkers cannot write to files')
inputs = []
for fname in args.files:
if not os.path.isabs(fname):
inputs.append(os.path.abspath(os.getcwd() + '/' + fname))
else:
inputs.append(fname)
args.files = inputs
if op==GEN:
generated = XOSProcessor.process(args, operators[0])
if not args.output and not args.write_to_file:
print generated
elif op==CHECK:
for o in operators:
verdict_str = XOSProcessor.process(args, o)
vlst = verdict_str.split('\n')
try:
verdict = next(v for v in vlst if v.strip())
status_code, status_string = verdict.split(' ', 1)
status_code = int(status_code)
except:
print "Checker %s returned mangled output" % o
exit(1)
if status_code != 200:
print '%s: %s - %s' % (o, status_code, status_string)
exit(1)
else:
print '%s: OK'%o