106 lines
3.2 KiB
Python
Executable File
106 lines
3.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright 2022 Google LLC
|
|
#
|
|
# 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.
|
|
'Parse names from specific Terraform resources and optionally check length.'
|
|
|
|
import collections
|
|
import enum
|
|
import logging
|
|
import pathlib
|
|
import re
|
|
|
|
import click
|
|
|
|
BASEDIR = pathlib.Path(__file__).resolve().parents[1]
|
|
LOGGER = logging.getLogger()
|
|
MOD_TOKENS = [
|
|
('NAME', r'\s*module\s*"([^"]+)"\s*\{\s*'),
|
|
('SOURCE', r'\s*source\s*=\s*"([^"]+)"\s*'),
|
|
('VALUE', r'\s*name\s*=\s*"([^"]+)"\s*'),
|
|
('REST', r'(.*)'),
|
|
]
|
|
MOD = enum.Enum('MOD', ' '.join(name for name, _ in MOD_TOKENS))
|
|
MOD_RE = re.compile('|'.join(f'(?:{pattern})' for _, pattern in MOD_TOKENS))
|
|
MOD_LIMITS = {'project': 30, 'iam-service-account': 30, 'gcs': 63}
|
|
|
|
Name = collections.namedtuple('Name', 'source name value length')
|
|
|
|
|
|
def get_names(dir_name):
|
|
dir_path = BASEDIR / dir_name
|
|
for tf_path in sorted(dir_path.glob('**/*.tf')):
|
|
if '.terraform' in str(tf_path):
|
|
continue
|
|
LOGGER.debug(f'file {tf_path}')
|
|
doc = tf_path.read_text()
|
|
name = source = None
|
|
for m in MOD_RE.finditer(doc):
|
|
token_type = MOD(m.lastindex)
|
|
if token_type == MOD.REST:
|
|
continue
|
|
value = m.group(m.lastindex).strip()
|
|
LOGGER.debug(f'{token_type}: {value}')
|
|
if token_type == MOD.NAME:
|
|
if name:
|
|
LOGGER.debug(f'module {name} already open ({value})')
|
|
name = value
|
|
source = None
|
|
elif token_type == MOD.SOURCE:
|
|
source = value.split('/')[-1]
|
|
LOGGER.debug(f'{name} {source}')
|
|
elif token_type == MOD.VALUE:
|
|
if name is None or source not in MOD_LIMITS:
|
|
continue
|
|
if '$' in value:
|
|
LOGGER.debug(f'interpolation in {name} ({value}), skipping')
|
|
else:
|
|
yield Name(source, name, value, len(value))
|
|
name = source = None
|
|
|
|
|
|
@click.command()
|
|
@click.argument('dirs', type=str, nargs=-1)
|
|
@click.option('--prefix-length', default=7, type=int)
|
|
def main(dirs, prefix_length=None):
|
|
'Parse names in dirs.'
|
|
import json
|
|
logging.basicConfig(level=logging.INFO)
|
|
names = []
|
|
for dir_name in dirs:
|
|
for name in get_names(dir_name):
|
|
names.append(name)
|
|
names.sort()
|
|
source_just = max(len(k) for k in MOD_LIMITS)
|
|
name_just = max(len(n.name) for n in names)
|
|
value_just = max(len(n.value) for n in names)
|
|
errors = []
|
|
for name in names:
|
|
name_length = name.length + prefix_length
|
|
if name_length >= MOD_LIMITS[name.source]:
|
|
flag = "✗"
|
|
errors += [f"{name.source}:{name.name}:{name_length}"]
|
|
else:
|
|
flag = "✓"
|
|
|
|
print(f"[{flag}] {name.source.ljust(source_just)} "
|
|
f"{name.name.ljust(name_just)} "
|
|
f"{name.value.ljust(value_just)} "
|
|
f"({name_length})")
|
|
if errors:
|
|
raise ValueError(errors)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|