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#!/usr/bin/env python
"""
all your lint are belong to us
"""
import os
import subprocess
import sys
# pylint: disable=missing-class-docstring,too-few-public-methods
class Color:
HEAD = "\033[95m"
BLUE = "\033[94m"
GREEN = "\033[92m"
WARN = "\033[93m"
FAIL = "\033[91m"
BOLD = "\033[1m"
UNDER = "\033[4m"
END = "\033[0m"
def run(cmd, file):
"Exec a linter for a file."
global ERRORS # pylint: disable=global-statement
args = {
"ormolu": ["--mode", "check"],
"hlint": [],
"black": ["--quiet", "--check"],
"pylint": ["--disable=invalid-name"],
}
# pylint: disable=subprocess-run-check
ret = subprocess.run([cmd, *args[cmd], file], stdout=subprocess.PIPE)
if ret.returncode != 0:
ERRORS += 1 # pylint: disable=undefined-variable
msg = ret.stdout.decode("utf-8").strip()
print(Color.WARN + f"lint error: {cmd}: {file}" + Color.END)
if msg:
for line in msg.split("\n"):
print(" " + line)
def changed_files():
"Return a list of changed files according to git."
merge_base = (
subprocess.check_output(["git", "merge-base", "HEAD", "origin/master"])
.decode("utf-8")
.strip()
)
return (
subprocess.check_output(["git", "diff", "--name-only", merge_base])
.decode("utf-8")
.strip()
.split()
)
def group_files(files, extensions):
"""Given a list of files and list of extensions, return a dict of:
{ext: [files]}
"""
root = os.getenv("BIZ_ROOT")
ret = {k: [] for k in extensions}
for ext in extensions:
for file in files:
if file.endswith(ext):
ret[ext].append(os.path.join(root, file))
return ret
def guard_todos(files):
"Fail if TODO found in text"
global ERRORS # pylint: disable=global-statement
for fname in files:
with open(fname) as text:
if "TODO" in text.read():
ERRORS += 1
print("found todo:", fname)
if __name__ == "__main__":
ERRORS = 0
if "-h" in sys.argv:
print(f"usage: {os.path.basename(__file__)} <files...>")
print("if no files given, lint changed files in this branch")
sys.exit(0)
elif len(sys.argv) == 1:
FILES = group_files(changed_files(), [".hs", ".py"])
else:
FILES = group_files(sys.argv[1:], [".hs", ".py"])
for hs in FILES[".hs"]:
if not os.path.exists(hs):
print("lint: does not exist:", hs)
continue
print(f"lint: {hs}")
run("ormolu", hs)
run("hlint", hs)
for py in FILES[".py"]:
if not os.path.exists(py):
print("lint: does not exist:", py)
continue
print(f"lint: {py}")
# Broken in our nixpkgs
# run("black", py)
run("pylint", py)
if ERRORS:
print("lint: errors:", ERRORS)
sys.exit(ERRORS)
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