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Using first line to determine EOL

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Edoardo Bezzeccheri 2025-05-07 16:05:09 +00:00
parent 647959c4b4
commit 04de4f8042
2 changed files with 9 additions and 3 deletions
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11
pre_commit_hooks/end_of_file_fixer.py
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@ -20,10 +20,15 @@ def fix_file(file_obj: IO[bytes]) -> int:
last_character = file_obj.read(1)
# last_character will be '' for an empty file
if last_character not in {LF, CR} and last_character != b'':
# Check if file uses CRLF endings
# Look at first line to determine line ending
file_obj.seek(0, os.SEEK_SET)
content = file_obj.read()
ending = CRLF if CRLF in content else LF
first_line = file_obj.readline()
if CRLF in first_line:
ending = CRLF
elif CR in first_line:
ending = CR
else:
ending = LF
# Needs this seek for windows, otherwise IOError
file_obj.seek(0, os.SEEK_END)
file_obj.write(ending)