Re: git grep/sed to standardize "/* SPDX-License-Identifier: <license>"

[Joe Perches]

On Sun, 2020-10-11 at 11:47 -0700, Joe Perches wrote:
> On Sun, 2020-10-11 at 11:42 -0700, Linus Torvalds wrote:
> > On Tue, Oct 6, 2020 at 4:13 PM Joe Perches <joe@xxxxxxxxxxx> wrote:
> > > Almost all source files in the kernel use a standardized SPDX header
> > > at line 1 with a comment /* initiator and terminator */:
> > > 
> > > /* SPDX-License-Identifier: <license> */
> > > 
> > > $ git grep -PHn '^/\* SPDX-License-Identifier:.*\*/\s*$' | \
> > >   wc -l
> > > 17847
> > 
> > That grep pattern makes zero sense.
> > 
> > Why would */ be special at all? It isn't.
> > 
> >   $ git grep SPDX-License-Identifier: | wc -l
> >   52418
> > 
> > and a *LOT* of those are shell scripts and use "#", or are C sources
> > and use "//" etc.
> > 
> > So your "standardization" is completely pointless. Anybody who expects
> > that pattern just doing something fundamentally wrong, because the
> > pattern you want to standardize around is simply not valid.

btw:

The script would merely change these c90 comments to use the style
mandated by/proposed in Documentation/process/license-rules.rst