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"""Functions for construcing the requested report plugin."""
import argparse
import logging
from typing import Dict
from flake8.formatting.base import BaseFormatter
from flake8.plugins.finder import LoadedPlugin
LOG = logging.getLogger(__name__)
def make(
reporters: Dict[str, LoadedPlugin],
options: argparse.Namespace,
) -> BaseFormatter:
"""Make the formatter from the requested user options.
- if :option:`flake8 --quiet` is specified, return the ``quiet-filename``
formatter.
- if :option:`flake8 --quiet` is specified at least twice, return the
``quiet-nothing`` formatter.
- otherwise attempt to return the formatter by name.
- failing that, assume it is a format string and return the ``default``
formatter.
"""
format_name = options.format
if options.quiet == 1:
format_name = "quiet-filename"
elif options.quiet >= 2:
format_name = "quiet-nothing"
try:
format_plugin = reporters[format_name]
except KeyError:
LOG.warning(
"%r is an unknown formatter. Falling back to default.",
format_name,
)
format_plugin = reporters["default"]
return format_plugin.obj(options)