Re: [PATCH] checkpatch: warn on found Change-Id lines

From: Joe Perches
Date: Mon Oct 10 2011 - 13:10:03 EST


On Sun, 2011-10-09 at 22:56 -0700, Olof Johansson wrote:
> Some external projects use repo, which uses a special-format Change-Id
> field in the commit message for some internal bookkeeping (to re-associate
> patches back to review entries, etc).

I believe Andrew has a patch from me in his queue
somewhere that tries to isolate the commit message
and does a couple of checks just on that content.

> Sometimes they sneak into patches
> going upstream, which is embarrassing for the developer, and annoying
> for the maintainer.
>
> Add checking for these to checkpatch, to catch them before
> posting. Provide a way to disable the check to keep checkpatch useful
> for intra-project use.
[]
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> +my $chk_changeid = 1;

> + --no-change-id don't complain about 'Change-Id' lines

Adding piecemeal option overrides could eventually
make these sorts of things quite long.

Perhaps it's better to use:
--ignore=CHANGE_ID

or add a .checkpatch.conf file somewhere with this.

> + 'change-id!' => \$chk_changeid,

> +$chk_changeid = 0 if ($file);

> +# Check for Change-Id lines:
> + if ($line =~ /^\s*change-id:/i && $chk_changeid) {
> + ERROR("CHANGE_ID", "Found Change-Id line\n", $herecurr);
> + }

I believe this will also match lines in any
patch context, so maybe this is not good.

I think this should be placed adjacent to the
RCS/CVS check.

Maybe it's better to add some "VCS_CRUFT"
option and track/emit all the RCS/SCCS/PVS/CVS
crud in one bundle.


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