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runner.py
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Sun, Jun 30, 23:42

runner.py
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import json
import subprocess
import sys
import re
import tempfile
from command import Command
from issue_formatter import IssueFormatter
from workspace import Workspace
class Runner:
CONFIG_FILE_PATH = '/config.json'
"""Runs clang-tidy, collects and reports results."""
def __init__(self):
self._config_file_path = self.CONFIG_FILE_PATH
self._config = {}
self._decode_config()
self._ansi_escape = re.compile(r'\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])')
self._issue_parse = re.compile(r'(?P<file>.*\.(cc|hh)):(?P<line>[0-9]+):(?P<column>[0-9]+): (warning|error): (?P<detail>.*) \[(?P<type>.*)\]') # noqa
self._issues_fpr = []
self._workspace = Workspace(self._config.get('include_paths', []))
def run(self):
workspace_files = self._workspace.calculate()
if not len(workspace_files) > 0:
return
self._print_debug(f'[clang-tidy] analyzing {len(workspace_files)} files')
command = Command(self._config, workspace_files).build()
self._print_debug(f'[clang-tidy] command: {command}')
self._generate_issues(command)
def _decode_config(self):
self._print_debug(f"Decoding config file {self._config_file_path}")
contents = ""
with open(self._config_file_path, "r") as config:
contents = config.read()
self._config = json.loads(contents)
self._print_debug(f'[clang-tidy] config: {self._config}')
def _run_command(self, command):
popen = subprocess.Popen(command,
stdout=subprocess.PIPE,
universal_newlines=True)
for stdout_line in iter(popen.stdout.readline, ""):
yield stdout_line
popen.stdout.close()
return_code = popen.wait()
if return_code:
raise subprocess.CalledProcessError(return_code, command)
def _print_issue(self, issue):
issue_ = IssueFormatter(issue).format()
if not issue_:
return
if not self._workspace.should_include(issue_["location"]["path"]):
return
if issue_['fingerprint'] in self._issues_fpr:
return
self._issues_fpr.append(issue_['fingerprint'])
print('{}\0'.format(json.dumps(issue_)))
def _generate_issues(self, command):
issue = None
for line in self._run_command(command):
clean_line = self._ansi_escape.sub('', line)
match = self._issue_parse.match(clean_line)
if match:
if issue:
self._print_issue(issue)
issue = match.groupdict()
elif issue:
if 'content' in issue:
issue['content'].append(line)
else:
issue['content'] = [line]
self._print_issue(issue)
def _print_debug(self, message):
if 'debug' in self._config:
print(message, file=sys.stderr)

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