Re: [PATCH v6] checkpatch.pl: Add SPDX license tag check

From: Philippe Ombredanne
Date: Fri Feb 09 2018 - 00:59:08 EST


On Fri, Feb 9, 2018 at 1:35 AM, Joe Perches <joe@xxxxxxxxxxx> wrote:
> On Fri, 2018-02-02 at 13:18 -0800, Joe Perches wrote:
>> On Fri, 2018-02-02 at 09:40 -0600, Rob Herring wrote:
>> > Add SPDX license tag check based on the rules defined in
>> > Documentation/process/license-rules.rst. To summarize, SPDX license tags
>> > should be on the 1st line (or 2nd line in scripts) using the appropriate
>> > comment style for the file type.
>> >
>> > Cc: Andy Whitcroft <apw@xxxxxxxxxxxxx>
>> > Cc: Joe Perches <joe@xxxxxxxxxxx>
>> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>> > Cc: Philippe Ombredanne <pombredanne@xxxxxxxx>
>> > Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
>> > Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
>>
>> Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
>
> Andrew, would you pick this up please?
>
>> > ---
>> > v6:
>> > - Dropped script extension check and only look for #!/... on 1st line. A
>> > text executable file was not reliable either.
>> > - Support .awk and .tc which may or may not have a #!/.
>> > - Fixed a typo in script "#!" regex and also match on first /.
>> > - Add Greg's ack.
>> >
>> > scripts/checkpatch.pl | 27 +++++++++++++++++++++++++++
>> > 1 file changed, 27 insertions(+)
>> >
>> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
>> > index ba03f17ff662..6db245e5f93b 100755
>> > --- a/scripts/checkpatch.pl
>> > +++ b/scripts/checkpatch.pl
>> > @@ -2225,6 +2225,8 @@ sub process {
>> >
>> > my $camelcase_file_seeded = 0;
>> >
>> > + my $checklicenseline = 1;
>> > +
>> > sanitise_line_reset();
>> > my $line;
>> > foreach my $rawline (@rawlines) {
>> > @@ -2416,6 +2418,7 @@ sub process {
>> > } else {
>> > $check = $check_orig;
>> > }
>> > + $checklicenseline = 1;
>> > next;
>> > }
>> >
>> > @@ -2866,6 +2869,30 @@ sub process {
>> > }
>> > }
>> >
>> > +# check for using SPDX license tag at beginning of files
>> > + if ($realline == $checklicenseline) {
>> > + if ($rawline =~ /^[ \+]\s*\#\!\s*\//) {
>> > + $checklicenseline = 2;
>> > + } elsif ($rawline =~ /^\+/) {
>> > + my $comment = "";
>> > + if ($realfile =~ /\.(h|s|S)$/) {
>> > + $comment = '/*';
>> > + } elsif ($realfile =~ /\.(c|dts|dtsi)$/) {
>> > + $comment = '//';
>> > + } elsif (($checklicenseline == 2) || $realfile =~ /\.(sh|pl|py|awk|tc)$/) {
>> > + $comment = '#';
>> > + } elsif ($realfile =~ /\.rst$/) {
>> > + $comment = '..';
>> > + }
>> > +
>> > + if ($comment !~ /^$/ &&
>> > + $rawline !~ /^\+\Q$comment\E SPDX-License-Identifier: /) {
>> > + WARN("SPDX_LICENSE_TAG",
>> > + "Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
>> > + }
>> > + }
>> > + }
>> > +
>> > # check we are in a valid source file if not then ignore this hunk
>> > next if ($realfile !~ /\.(h|c|s|S|sh|dtsi|dts)$/);
>> >

BTW I forgot this if you like to add it:

Acked-by: Philippe Ombredanne <pombredanne@xxxxxxxx>