|
| 1 | +import argparse |
| 2 | +import concurrent.futures |
| 3 | +import json |
| 4 | +import logging |
| 5 | +import os |
| 6 | +import re |
| 7 | +import subprocess |
| 8 | +import time |
| 9 | +from enum import Enum |
| 10 | +from typing import List, NamedTuple, Optional, Pattern |
| 11 | + |
| 12 | + |
| 13 | +LINTER_CODE = "SQLFLUFF" |
| 14 | + |
| 15 | + |
| 16 | +class LintSeverity(str, Enum): |
| 17 | + ERROR = "error" |
| 18 | + WARNING = "warning" |
| 19 | + ADVICE = "advice" |
| 20 | + DISABLED = "disabled" |
| 21 | + |
| 22 | + |
| 23 | +class LintMessage(NamedTuple): |
| 24 | + path: Optional[str] |
| 25 | + line: Optional[int] |
| 26 | + char: Optional[int] |
| 27 | + code: str |
| 28 | + severity: LintSeverity |
| 29 | + name: str |
| 30 | + original: Optional[str] |
| 31 | + replacement: Optional[str] |
| 32 | + description: Optional[str] |
| 33 | + |
| 34 | + |
| 35 | +RESULTS_RE: Pattern[str] = re.compile( |
| 36 | + r"""(?mx) |
| 37 | + ^ |
| 38 | + (?P<file>.*?): |
| 39 | + (?P<line>\d+): |
| 40 | + (?P<char>\d+): |
| 41 | + \s(?P<message>.*) |
| 42 | + \s(?P<code>\[.*\]) |
| 43 | + $ |
| 44 | + """ |
| 45 | +) |
| 46 | + |
| 47 | + |
| 48 | +def run_command( |
| 49 | + args: List[str], |
| 50 | +) -> "subprocess.CompletedProcess[bytes]": |
| 51 | + logging.debug("$ %s", " ".join(args)) |
| 52 | + start_time = time.monotonic() |
| 53 | + try: |
| 54 | + return subprocess.run( |
| 55 | + args, |
| 56 | + capture_output=True, |
| 57 | + ) |
| 58 | + finally: |
| 59 | + end_time = time.monotonic() |
| 60 | + logging.debug("took %dms", (end_time - start_time) * 1000) |
| 61 | + |
| 62 | + |
| 63 | +def check_file( |
| 64 | + filename: str, |
| 65 | +) -> List[LintMessage]: |
| 66 | + with open(filename, 'r') as f: |
| 67 | + original = f.read() |
| 68 | + original = original.replace('{', '\'{').replace('}', '}\'') |
| 69 | + with open(filename, 'w') as f: |
| 70 | + f.write(original) |
| 71 | + |
| 72 | + try: |
| 73 | + # proc.run_command(sed -i -e "s/'{/{/g" -e "s/}'/}/g") |
| 74 | + proc = run_command( |
| 75 | + [ |
| 76 | + "sqlfluff", |
| 77 | + "format", |
| 78 | + "--dialect", |
| 79 | + "clickhouse", |
| 80 | + filename, |
| 81 | + ] |
| 82 | + ) |
| 83 | + except OSError as err: |
| 84 | + return [ |
| 85 | + LintMessage( |
| 86 | + path=None, |
| 87 | + line=None, |
| 88 | + char=None, |
| 89 | + code=LINTER_CODE, |
| 90 | + severity=LintSeverity.ERROR, |
| 91 | + name="command-failed", |
| 92 | + original=None, |
| 93 | + replacement=None, |
| 94 | + description=(f"Failed due to {err.__class__.__name__}:\n{err}"), |
| 95 | + ) |
| 96 | + ] |
| 97 | + |
| 98 | + with open(filename, 'r') as f: |
| 99 | + final = f.read() |
| 100 | + final = final.replace('\'{', '{').replace('}\'', '}') |
| 101 | + with open(filename, 'w') as f: |
| 102 | + f.write(final) |
| 103 | + |
| 104 | + lint_message = proc.stdout |
| 105 | + |
| 106 | + |
| 107 | + return [ |
| 108 | + LintMessage( |
| 109 | + path=filename, |
| 110 | + line=None, |
| 111 | + char=None, |
| 112 | + code=LINTER_CODE, |
| 113 | + severity=LintSeverity.WARNING, |
| 114 | + name="format", |
| 115 | + original=None, |
| 116 | + replacement=None, |
| 117 | + description=lint_message.decode("utf-8"), |
| 118 | + ) |
| 119 | + ] |
| 120 | + |
| 121 | + |
| 122 | +def main() -> None: |
| 123 | + parser = argparse.ArgumentParser( |
| 124 | + description=f"sqlfluff format linter for sql queries.", |
| 125 | + fromfile_prefix_chars="@", |
| 126 | + ) |
| 127 | + parser.add_argument( |
| 128 | + "filenames", |
| 129 | + nargs="+", |
| 130 | + help="paths to lint", |
| 131 | + ) |
| 132 | + |
| 133 | + args = parser.parse_args() |
| 134 | + |
| 135 | + with concurrent.futures.ThreadPoolExecutor( |
| 136 | + max_workers=os.cpu_count(), |
| 137 | + thread_name_prefix="Thread", |
| 138 | + ) as executor: |
| 139 | + futures = { |
| 140 | + executor.submit( |
| 141 | + check_file, |
| 142 | + filename, |
| 143 | + ): filename |
| 144 | + for filename in args.filenames |
| 145 | + } |
| 146 | + for future in concurrent.futures.as_completed(futures): |
| 147 | + try: |
| 148 | + for lint_message in future.result(): |
| 149 | + print(json.dumps(lint_message._asdict()), flush=True) |
| 150 | + except Exception: |
| 151 | + logging.critical('Failed at "%s".', futures[future]) |
| 152 | + raise |
| 153 | + |
| 154 | + |
| 155 | +if __name__ == "__main__": |
| 156 | + main() |
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