linux-kernel - Re: [PATCH 3/3] kbuild: Add a build check for missing gitignore entries

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Message-ID: <CAMuHMdVyP4ZfXy_sjCb2NbHRSWz1DFo06Q4MD4DsiL0ASLsGgA@mail.gmail.com>
Date:   Wed, 24 Feb 2021 12:26:40 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kbuild <linux-kbuild@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] kbuild: Add a build check for missing gitignore entries

Hi Rob,

On Tue, Feb 23, 2021 at 7:18 PM Rob Herring <robh@...nel.org> wrote:
> Any non-phony targets need to be in gitignore. The normal way to check
> this is doing an in-tree build and running git-status which is easy to
> miss. Git provides an easy way to check whether a file is ignored with
> git-check-ignore. Let's add a build time check using it. If the build is
> not in a git tree, the check will silently fail.
>
> This also has the side effect of a sanity check for 'always-y',
> 'extra-y' and 'targets' entries which are not correctly marked as PHONY
> or have the wrong path.
>
> Cc: Masahiro Yamada <masahiroy@...nel.org>
> Cc: Michal Marek <michal.lkml@...kovi.net>
> Cc: linux-kbuild@...r.kernel.org
> Signed-off-by: Rob Herring <robh@...nel.org>

Thanks for your patch!

After removing the .git directory from my repository clone, or
removing the git command from $PATH:

    scripts/Makefile.lib:106: scripts/basic/fixdep is missing gitignore entry
    scripts/Makefile.lib:106: scripts/sorttable is missing gitignore entry
    [...]

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds