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#!/bin/sh
# This file is part of the coreboot project.
#
# Copyright (C) 2016 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# DESCR: Check that files end with a single newline
LC_ALL=C export LC_ALL
EXCLUDED_DIRS='src/vendorcode/\|util/romcc/\|cbfstool/lzma/\|cbfstool/lz4/\|Documentation/\|build/\|3rdparty/\|\.git/\|coreboot-builds/\|util/nvidia/cbootimage/'
EXCLUDED_FILES='\.jpg$\|\.cksum$\|\.bin$\|\.hex$\|\.ico$\|\.o$\|\.bz2$\|\.xz$\|^.tmpconfig\|\.pyc$\|_shipped$\|sha256$\|\.png$\|\.patch$'
# Use git ls-files if the code is in a git repo, otherwise use find.
if [ -n "$(command -v git)" ] && \
[ "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]
then
FIND_FILES="git ls-files"
else
FIND_FILES="find . "
fi
HAVE_FILE=$(command -v file 1>/dev/null 2>&1; echo $?)
is_eligible_executable() {
if [ "$HAVE_FILE" -ne 0 ]; then
return 1
fi
if { LC_ALL=C; file --brief "$filename" | grep -Eqw \
"^(Bourne shell|POSIX shell|Perl|Python) script"; };
then
return 0
else
return 1
fi
}
test_for_final_newline() {
while read filename; do
# Only check regular files and script executables
if [ -f "$filename" ] && { [ ! -x "$filename" ] || \
is_eligible_executable "$filename"; };
then
# Verify that there is a newline at the end
# $() strips trailing newlines
if [ -n "$(tail -c 1 "$filename")" ]; then
echo "$filename has no final newline."
# Verify that the file ends with only a single newline
# and that the file isn't empty
elif [ -z "$(tail -c 2 "$filename")" ] && \
[ -n "$(head -n 5 "$filename")" ]; then
echo "$filename has multiple final newlines."
fi
fi
done
}
${FIND_FILES} | sed 's|^\./||' | sort | \
grep -v "$EXCLUDED_DIRS" | \
grep -v "$EXCLUDED_FILES" | \
test_for_final_newline
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