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#!/usr/bin/env python3
import os
import subprocess
import sys
def run():
"""Check files checked in to git for trailing newlines at end of file."""
files = subprocess.run(
[
"git", "ls-files", "--",
"*.cpp",
"*.h",
"*.gml",
"*.html",
"*.js",
"*.css",
"*.sh",
"*.py",
"*.json",
"CMake*.txt",
"**/CMake*.txt",
":!:Kernel/FileSystem/ext2_fs.h",
':!:Userland/DevTools/HackStudio/LanguageServers/Cpp/Tests/*',
':!:Userland/Libraries/LibCpp/Tests/*'
],
check=True,
capture_output=True
).stdout.decode().strip('\n').split('\n')
no_newline_at_eof_errors = []
blank_lines_at_eof_errors = []
did_fail = False
for filename in files:
with open(filename, "r") as f:
f.seek(0, os.SEEK_END)
f.seek(f.tell() - 1, os.SEEK_SET)
if f.read(1) != '\n':
did_fail = True
no_newline_at_eof_errors.append(filename)
continue
while True:
f.seek(f.tell() - 2, os.SEEK_SET)
char = f.read(1)
if not char.isspace():
break
if char == '\n':
did_fail = True
blank_lines_at_eof_errors.append(filename)
break
if no_newline_at_eof_errors:
print("Files with no newline at the end:", " ".join(no_newline_at_eof_errors))
if blank_lines_at_eof_errors:
print("Files that have blank lines at the end:", " ".join(blank_lines_at_eof_errors))
if did_fail:
sys.exit(1)
if __name__ == '__main__':
os.chdir(os.path.dirname(__file__) + "/..")
run()
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