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#!/usr/bin/env bash
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2016-2020, Intel Corporation
# check-headers.sh - check copyright and license in source files
SELF=$0
function usage() {
echo "Usage: $SELF <source_root_path> <license_tag> [-h|-v|-a]"
echo " -h, --help this help message"
echo " -v, --verbose verbose mode"
echo " -a, --all check all files (only modified files are checked by default)"
}
if [ "$#" -lt 2 ]; then
usage >&2
exit 2
fi
SOURCE_ROOT=$1
shift
LICENSE=$1
shift
PATTERN=`mktemp`
TMP=`mktemp`
TMP2=`mktemp`
TEMPFILE=`mktemp`
rm -f $PATTERN $TMP $TMP2
if [ "$1" == "-h" -o "$1" == "--help" ]; then
usage
exit 0
fi
export GIT="git -C ${SOURCE_ROOT}"
$GIT rev-parse || exit 1
if [ -f $SOURCE_ROOT/.git/shallow ]; then
SHALLOW_CLONE=1
echo
echo "Warning: This is a shallow clone. Checking dates in copyright headers"
echo " will be skipped in case of files that have no history."
echo
else
SHALLOW_CLONE=0
fi
VERBOSE=0
CHECK_ALL=0
while [ "$1" != "" ]; do
case $1 in
-v|--verbose)
VERBOSE=1
;;
-a|--all)
CHECK_ALL=1
;;
esac
shift
done
if [ $CHECK_ALL -eq 0 ]; then
CURRENT_COMMIT=$($GIT log --pretty=%H -1)
MERGE_BASE=$($GIT merge-base HEAD origin/master 2>/dev/null)
[ -z $MERGE_BASE ] && \
MERGE_BASE=$($GIT log --pretty="%cN:%H" | grep GitHub | head -n1 | cut -d: -f2)
[ -z $MERGE_BASE -o "$CURRENT_COMMIT" = "$MERGE_BASE" ] && \
CHECK_ALL=1
fi
if [ $CHECK_ALL -eq 1 ]; then
echo "Checking copyright headers of all files..."
GIT_COMMAND="ls-tree -r --name-only HEAD"
else
if [ $VERBOSE -eq 1 ]; then
echo
echo "Warning: will check copyright headers of modified files only,"
echo " in order to check all files issue the following command:"
echo " $ $SELF <source_root_path> <license_tag> -a"
echo " (e.g.: $ $SELF $SOURCE_ROOT $LICENSE -a)"
echo
fi
echo "Checking copyright headers of modified files only..."
GIT_COMMAND="diff --name-only $MERGE_BASE $CURRENT_COMMIT"
fi
FILES=$($GIT $GIT_COMMAND | ${SOURCE_ROOT}/utils/check_license/file-exceptions.sh | \
grep -E -e '*\.[chs]$' -e '*\.[ch]pp$' -e '*\.sh$' \
-e '*\.py$' -e '*\.link$' -e 'Makefile*' -e 'TEST*' \
-e '/common.inc$' -e '/match$' -e '/check_whitespace$' \
-e 'LICENSE$' -e 'CMakeLists.txt$' -e '*\.cmake$' | \
xargs)
RV=0
for file in $FILES ; do
# The src_path is a path which should be used in every command except git.
# git is called with -C flag so filepaths should be relative to SOURCE_ROOT
src_path="${SOURCE_ROOT}/$file"
[ ! -f $src_path ] && continue
# ensure that file is UTF-8 encoded
ENCODING=`file -b --mime-encoding $src_path`
iconv -f $ENCODING -t "UTF-8" $src_path > $TEMPFILE
if ! grep -q "SPDX-License-Identifier: $LICENSE" $src_path; then
echo "$src_path:1: no $LICENSE SPDX tag found " >&2
RV=1
elif [[ $file == *.c ]] || [[ $file == *.cpp ]]; then
if ! grep -q -e "\/\/ SPDX-License-Identifier: $LICENSE" $src_path; then
echo "$src_path:1: wrong format of $LICENSE SPDX tag" >&2
RV=1
fi
elif [[ $file == *.h ]] || [[ $file == *.hpp ]]; then
if ! grep -q -e "\/\* SPDX-License-Identifier: $LICENSE \*\/" $src_path; then
echo "$src_path:1: wrong format of $LICENSE SPDX tag" >&2
RV=1
fi
elif [[ $file != LICENSE ]]; then
if ! grep -q -e "# SPDX-License-Identifier: $LICENSE" $src_path; then
echo "$src_path:1: wrong format of $LICENSE SPDX tag" >&2
RV=1
fi
fi
if [ $SHALLOW_CLONE -eq 0 ]; then
$GIT log --no-merges --format="%ai %aE" -- $file | sort > $TMP
else
# mark the grafted commits (commits with no parents)
$GIT log --no-merges --format="%ai %aE grafted-%p-commit" -- $file | sort > $TMP
fi
# skip checking dates for non-Intel commits
[[ ! $(tail -n1 $TMP) =~ "@intel.com" ]] && continue
# skip checking dates for new files
[ $(cat $TMP | wc -l) -le 1 ] && continue
# grep out the grafted commits (commits with no parents)
# and skip checking dates for non-Intel commits
grep -v -e "grafted--commit" $TMP | grep -e "@intel.com" > $TMP2
[ $(cat $TMP2 | wc -l) -eq 0 ] && continue
FIRST=`head -n1 $TMP2`
LAST=` tail -n1 $TMP2`
YEARS=`sed '
/Copyright [0-9-]\+.*, Intel Corporation/!d
s/.*Copyright \([0-9]\+\)-\([0-9]\+\),.*/\1-\2/
s/.*Copyright \([0-9]\+\),.*/\1-\1/' $src_path`
if [ -z "$YEARS" ]; then
echo >&2 "$src_path:1: No copyright years found"
RV=1
continue
fi
HEADER_FIRST=`echo $YEARS | cut -d"-" -f1`
HEADER_LAST=` echo $YEARS | cut -d"-" -f2`
COMMIT_FIRST=`echo $FIRST | cut -d"-" -f1`
COMMIT_LAST=` echo $LAST | cut -d"-" -f1`
if [ "$COMMIT_FIRST" != "" -a "$COMMIT_LAST" != "" ]; then
if [ $HEADER_LAST -lt $COMMIT_LAST ]; then
if [ $HEADER_FIRST -lt $COMMIT_FIRST ]; then
COMMIT_FIRST=$HEADER_FIRST
fi
COMMIT_LAST=`date +%G`
if [ $COMMIT_FIRST -eq $COMMIT_LAST ]; then
NEW=$COMMIT_LAST
else
NEW=$COMMIT_FIRST-$COMMIT_LAST
fi
echo "$file:1: error: wrong copyright date: (is: $YEARS, should be: $NEW)" >&2
RV=1
fi
else
echo "$file:1: unknown commit dates" >&2
RV=1
fi
done
rm -f $TMP $TMP2 $TEMPFILE
$(dirname "$0")/check-ms-license.pl $FILES
# check if error found
if [ $RV -eq 0 ]; then
echo "Copyright headers are OK."
else
echo "Error(s) in copyright headers found!" >&2
fi
exit $RV
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