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#!/bin/sh
# This file is part of the coreboot project.
#
# Copyright (C) 2010 coresystems GmbH
# 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 in have valid license headers
# $1 is an optional command line parameter containing directories to check
# regex list of files and directories to exclude from the search
HEADER_EXCLUDED="\
^src/vendorcode/|\
^util/kconfig/|\
^util/romcc/tests|\
^util/romcc/results|\
^util/gitconfig|\
Kconfig|\
\<COPYING\>|\
\<LICENSE\>|\
\<README\>|\
Changelog|\
TODO|\
EXAMPLE|\
\.txt$|\
\.jpg$|\
\.cksum$|\
\.bin$|\
\.hex$|\
\.patch$|\
_shipped$|\
/microcode-[^/]*.h$|\
/sdram-.*\.inc$|\
Makefile\.inc\
"
#space separated list of directories to test
if [ "$1" = "" ]; then
HEADER_DIRS="src util"
else
HEADER_DIRS="$1"
fi
LC_ALL=C export LC_ALL
#get initial list from git, removing HEADER_EXCLUDED files.
#make a copy to check for the old style header later.
headerlist=$(git ls-files $HEADER_DIRS | egrep -v "($HEADER_EXCLUDED)")
#update headerlist by removing files that match the license string
check_for_license() {
if [ -z "$2" ]; then
headerlist="$(grep -iL "$1" $headerlist 2>/dev/null)"
else
local p1list="$(grep -il "$1" $headerlist 2>/dev/null)"
local p2list="$(grep -il "$2" $headerlist 2>/dev/null)"
# Make list of files that were in both previous lists
local pbothlist="$(echo $p1list $p2list | tr ' ' "\n" | \
sort | uniq -d)"
# Remove all files that were in both of the previous lists
# Note that this is unstable if we ever get any filenames
# with spaces.
headerlist="$(echo $headerlist $pbothlist | tr ' ' "\n" | \
sort | uniq -u)"
fi
}
#search the files for license headers
check_for_license "under the terms of the GNU General Public License" \
"WITHOUT ANY WARRANTY"
check_for_license 'IS PROVIDED .*"AS IS"'
check_for_license "IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE"
check_for_license '"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES'
for file in $headerlist; do
#verify the file exists, and has content that requires a header
if [ -f "$file" ] && [ "$(wc -l < "$file")" -ne 0 ]; then
echo "$file has no recognized license header."
fi
done
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