Source code for certbot.plugins.util

"""Plugin utilities."""
import logging
import os

from certbot import util

logger = logging.getLogger(__name__)

[docs]def path_surgery(cmd): """Attempt to perform PATH surgery to find cmd Mitigates :param str cmd: the command that is being searched for in the PATH :returns: True if the operation succeeded, False otherwise """ dirs = ("/usr/sbin", "/usr/local/bin", "/usr/local/sbin") path = os.environ["PATH"] added = [] for d in dirs: if d not in path: path += os.pathsep + d added.append(d) if any(added): logger.debug("Can't find %s, attempting PATH mitigation by adding %s", cmd, os.pathsep.join(added)) os.environ["PATH"] = path if util.exe_exists(cmd): return True else: expanded = " expanded" if any(added) else "" logger.warning("Failed to find executable %s in%s PATH: %s", cmd, expanded, path) return False