Files
nx_post_support/server/libs/tclint/cli/tclint.py
T

174 lines
4.4 KiB
Python

"""Main CLI entry point."""
import argparse
import pathlib
import sys
from typing import Dict, List, Optional
from tclint.config import (
get_config,
setup_config_cli_args,
Config,
ConfigError,
RunConfig,
)
from tclint.parser import Parser, TclSyntaxError
from tclint.checks import get_checkers
from tclint.violations import Violation, Rule
from tclint.comments import CommentVisitor
from tclint.cli.utils import resolve_sources, register_codec_warning
try:
from tclint._version import __version__ # type: ignore
except ModuleNotFoundError:
__version__ = "(unknown version)"
# exit code flags
EXIT_OK = 0
EXIT_LINT_VIOLATIONS = 1
EXIT_SYNTAX_ERROR = 2
EXIT_INPUT_ERROR = 4
def filter_violations(
violations: List[Violation],
config_ignore: List[Rule],
inline_ignore: Dict[int, List[Rule]],
) -> List[Violation]:
filtered_violations = []
for violation in violations:
if violation.id in config_ignore:
continue
line = violation.start[0]
if line in inline_ignore and violation.id in inline_ignore[line]:
continue
filtered_violations.append(violation)
return filtered_violations
def lint(
script: str,
config: Config,
path: Optional[pathlib.Path],
debug=0,
) -> List[Violation]:
plugins = [config.commands] if config.commands is not None else []
parser = Parser(debug=(debug > 0), command_plugins=plugins)
violations = []
tree = parser.parse(script)
violations += parser.violations
if debug > 0:
print(tree.pretty(positions=(debug > 1)))
for checker in get_checkers():
violations += checker.check(script, tree, config)
v = CommentVisitor()
ignore_lines = v.run(tree, path)
violations = filter_violations(violations, config.ignore, ignore_lines)
return violations
def main():
parser = argparse.ArgumentParser("tclint")
parser.add_argument(
"--version", action="version", version=f"%(prog)s {__version__}"
)
parser.add_argument(
"source",
nargs="+",
help="files to lint. Provide '-' to read from stdin",
type=pathlib.Path,
)
parser.add_argument(
"-d",
"--debug",
action="count",
default=0,
help=(
"display debug output. Provide additional times to increase the verbosity"
" of output (e.g. -dd)"
),
)
parser.add_argument(
"-c",
"--config",
help="path to config file",
type=pathlib.Path,
default=None,
metavar="<path>",
)
setup_config_cli_args(parser)
args = parser.parse_args()
try:
config = get_config(args.config, pathlib.Path())
except ConfigError as e:
print(f"Invalid config file: {e}")
return EXIT_INPUT_ERROR
if config is None:
config = RunConfig()
config.apply_cli_args(args)
try:
# TODO: we should eventually allow tclint to find a config by walking up
# directories, at which point exclude_root should be the parent dir of
# the config file, unless -c is used (eslint rules)
exclude_root = pathlib.Path.cwd()
sources = resolve_sources(
args.source,
exclude_patterns=config.exclude,
exclude_root=exclude_root,
extensions=config.extensions,
)
except FileNotFoundError as e:
print(f"Invalid path provided: {e}")
return EXIT_INPUT_ERROR
retcode = EXIT_OK
register_codec_warning("replace_with_warning")
for path in sources:
if path is None:
script = sys.stdin.read()
out_prefix = "(stdin)"
else:
with open(path, "r", errors="replace_with_warning") as f:
script = f.read()
out_prefix = str(path)
try:
violations = lint(
script,
config.get_for_path(path),
path,
debug=args.debug,
)
except TclSyntaxError as e:
line, col = e.start
print(f"{out_prefix}:{line}:{col}: syntax error: {e}")
retcode |= EXIT_SYNTAX_ERROR
continue
for violation in sorted(violations):
print(f"{out_prefix}:{violation}")
if len(violations) > 0:
retcode |= EXIT_LINT_VIOLATIONS
return retcode
if __name__ == "__main__":
sys.exit(main())