GeezerVison

import json import subprocess import sys import traceback from types import TracebackType from typing import List from .danger import Danger, fail, markdown, message, serialize_results, warn from .exceptions import DangerfileException, SystemConfigurationException def resolve_danger_path(): process = subprocess.run(["which", "danger"], capture_output=True) if process.returncode == 0: path = process.stdout.decode("utf-8") return path.strip() else: raise SystemConfigurationException("danger-js not found in PATH") def invoke_danger(parameters: List[str]) -> subprocess.CompletedProcess: command = build_danger_command(parameters) return subprocess.run(command, capture_output=True) def build_danger_command(parameters: List[str]) -> List[str]: command = [resolve_danger_path()] command.extend(parameters) command.extend(["-p", "danger-python", "-u"]) return command def execute_dangerfile(dangerfile: str): try: compiled = compile(dangerfile, "dangerfile.py", "exec") danger_globals = { "danger": Danger(), "fail": fail, "warn": warn, "markdown": markdown, "message": message, } exec(compiled, {}, danger_globals) assert Danger.results is not None print(json.dumps(serialize_results(Danger.results))) except Exception as error: _, _, trace = sys.exc_info() assert trace is not None exception_message = __format_exception(error, trace) else: return raise DangerfileException(exception_message) def __format_exception(error: Exception, trace: TracebackType) -> str: trace_next = trace.tb_next error_class = error.__class__.__name__ error_detail = error.args[0] if isinstance(error, SyntaxError): line_number = error.lineno else: assert trace_next is not None line_number = trace_next.tb_lineno message = ( "There was an error when executing dangerfile.py:\n" f"{error_class} at line {line_number}: {error_detail}\n\n" "Stacktrace:\n" f"{''.join(traceback.format_tb(trace_next))}" ) return message