coreboot-kgpe-d16/util/lint/lint-000-license-headers
Jacob Garber d2fea1ab21 util/lint: Check for SPDX identifiers by default
The majority of the codebase has been converted to use SPDX identifiers
now, so let's enforce those by default. The only exceptions are
src/include and src/lib, which are not being checked since many of the
files there do not have license headers at all. Files with custom
licenses that aren't covered by SPDX can be listed as exceptions at the
top of lint-000-license-headers.

Change-Id: Ie6642153793d5735c74c5950bc9e27ee7eecacbc
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41602
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-28 09:38:03 +00:00

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#!/bin/sh
#
# SPDX-License-Identifier: GPL-2.0-only
# DESCR: Check that files in have valid license headers
# $1 is an optional command line parameter containing directories to check
# regex list of files and directories to exclude from the search
HEADER_EXCLUDED="\
^src/commonlib/bsd/lz4.c.inc\$|\
^src/cpu/x86/16bit/entry16.inc\$|\
^src/device/oprom/x86emu/|\
^src/device/oprom/include/x86emu/|\
^src/device/oprom/yabel/|\
^src/drivers/intel/gma/drm_dp_helper.h\$|\
^src/drivers/net/ne2k.c\$|\
^src/drivers/xgi/common/initdef.h\$|\
^src/drivers/xgi/common/vstruct.h\$|\
^src/lib/gnat/|\
^src/lib/lzmadecode.[ch]\$|\
^src/lib/stack.c\$|\
^src/vendorcode/|\
^util/amdtools/example_input/|\
^util/cbfstool/lzma/|\
^util/cbfstool/lz4/|\
^util/kconfig/|\
Kconfig|\
\<COPYING\>|\
\<LICENSE\>|\
\<README\>|\
Changelog|\
TODO|\
EXAMPLE|\
NEWS|\
ChangeLog|\
Dockerfile|\
\.in$|\
\.[18]$|\
\.md$|\
\.wiki$|\
\.xxdump$|\
\.spec$|\
\.txt$|\
\.jpg$|\
\.cksum$|\
\.bin$|\
\.vbt$|\
\.hex$|\
\.patch$|\
_shipped$|\
/microcode-[^/]*.h$|\
/sdram-.*\.inc$|\
Makefile\.inc|\
\.fmd|\
\.cb|\
\.cfg$|\
\.spd|\
config|\
cmos\.layout|\
cmos\.default\
"
#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 [ -n "$headerlist" ] && [ -z "$2" ]; then
headerlist="$(grep -iL "$1" $headerlist 2>/dev/null)"
elif [ -n "$headerlist" ]; then
p1list="$(grep -il "$1" $headerlist 2>/dev/null)"
p2list="$(grep -il "$2" $headerlist 2>/dev/null)"
# Make list of files that were in both previous lists
pbothlist="$(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 'SPDX-License-Identifier: Apache-2.0'
check_for_license 'SPDX-License-Identifier: BSD-2-Clause'
check_for_license 'SPDX-License-Identifier: BSD-3-Clause'
check_for_license 'SPDX-License-Identifier: GPL-2.0-only'
check_for_license 'SPDX-License-Identifier: GPL-2.0-or-later'
check_for_license 'SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note'
check_for_license 'SPDX-License-Identifier: GPL-3.0-only'
check_for_license 'SPDX-License-Identifier: GPL-3.0-or-later'
check_for_license 'SPDX-License-Identifier: HPND'
check_for_license 'SPDX-License-Identifier: HPND-sell-variant'
check_for_license 'SPDX-License-Identifier: ISC'
check_for_license 'SPDX-License-Identifier: MIT'
check_for_license 'SPDX-License-Identifier: X11'
# This is 4 clause ("with advertising") but the University of Berkeley
# declared that 4th clause void, see
# ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
# With this, BSD-4-Clause-UC becomes GPLv2 compatible, and so SPDX doesn't
# differentiate between this license with or without advertising.
check_for_license 'SPDX-License-Identifier: BSD-4-Clause-UC'
for file in $headerlist; do
# Verify the file exists, and has content that requires a header
# This assumes that a file that has 4 lines or fewer is not notable
# enough to require a license.
if [ -f "$file" ] && [ "$(wc -l < "$file")" -gt 4 ]; then
echo "$file has no recognized SPDX identifier."
fi
done