Remove pyflakes and pycodestyle integration.

Signed-off-by: Anders Kaseorg <[email protected]>

README.md

@@ -10,7 +10,7 @@ applications using a mix of third-party linters and custom rules.
 Modern full-stack web applications generally involve code written in
 several programming languages, each of which have their own standard
 linter tools.  For example, [Zulip](https://zulip.com) uses Python
-(mypy/pyflake/pycodestyle), JavaScript (eslint), CSS (stylelint),
+(mypy, Ruff), JavaScript (eslint), CSS (stylelint),
 puppet (puppet-lint), shell (shellcheck), and several more.  For many
 codebases, this results in linting being an unpleasantly slow
 experience, resulting in even more unpleasant secondary problems like

setup.py

@@ -3,8 +3,6 @@
 VERSION = "1.0.0"
 
 REQUIRED = [
-    "pyflakes",
-    "pycodestyle",
     "typing-extensions",
 ]
 

zulint/linters.py

@@ -1,9 +1,8 @@
-import argparse
 import signal
 import subprocess
-from typing import Callable, Sequence, Tuple
+from typing import Callable, Sequence
 
-from zulint.printer import colors, print_err
+from zulint.printer import print_err
 
 
 def run_command(
@@ -29,48 +28,3 @@ def run_command(
                 signal_name = f"signal {-p.returncode}"
             print_err(name, color, f"{command[0]} terminated by {signal_name}")
         return p.returncode
-
-
-def run_pycodestyle(files: Sequence[str], ignored_rules: Sequence[str]) -> bool:
-    if len(files) == 0:
-        return False
-
-    command = [
-        "pycodestyle",
-        "--ignore={rules}".format(rules=",".join(ignored_rules)),
-        "--",
-        *files,
-    ]
-    return run_command("pep8", next(colors), command) != 0
-
-
-def run_pyflakes(
-    files: Sequence[str],
-    options: argparse.Namespace,
-    suppress_patterns: Sequence[Tuple[str, str]] = [],
-) -> bool:
-    if len(files) == 0:
-        return False
-    failed = False
-    color = next(colors)
-    with subprocess.Popen(
-        ["pyflakes", "--", *files],
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
-        universal_newlines=True,
-    ) as pyflakes:
-        # Implied by use of subprocess.PIPE
-        assert pyflakes.stdout is not None
-        assert pyflakes.stderr is not None
-
-        def suppress_line(line: str) -> bool:
-            for file_pattern, line_pattern in suppress_patterns:
-                if file_pattern in line and line_pattern in line:
-                    return True
-            return False
-
-        for ln in pyflakes.stdout.readlines() + pyflakes.stderr.readlines():
-            if not suppress_line(ln):
-                print_err("pyflakes", color, ln)
-                failed = True
-    return failed