linux-kernel - [PATCH] checkpatch: Add ability to coalesce commit descriptions on multiple lines

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Date:	Tue, 20 Jan 2015 14:25:16 -0800
From:	Joe Perches <joe@...ches.com>
To:	Paul Bolle <pebolle@...cali.nl>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andy Whitcroft <apw@...onical.com>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Valentin Rothberg <valentinrothberg@...il.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] checkpatch: Add ability to coalesce commit descriptions on
 multiple lines

If a git commit description is split on consecutive lines,
coalesce it before testing.

This allows:

  commit <foo> ("some long
  description")

Signed-off-by: Joe Perches <joe@...ches.com>
Noticed-by: Paul Bolle <pebolle@...cali.nl>
---
> Checkpatch in next-21050119 complains:
>     ERROR: Please use git commit description style 'commit <12+ chars of sha1> ("<title line>")' - ie: 'commit fa0ce4035d48 ("ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds")'
>     #7: 
>     commit fa0ce4035d48 ("ARM: 7162/1: errata: tidy up Kconfig options for
>     
>     total: 1 errors, 0 warnings, 14 lines checked
>     
>     Your patch has style problems, please review.
> 
> Perhaps it doesn't notice the quote spans two lines. Can this be fixed
> please?

Oh bother...

 scripts/checkpatch.pl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 41223c9..6a3baa0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2198,6 +2198,13 @@ sub process {
 				 defined $rawlines[$linenr] &&
 				 $rawlines[$linenr] =~ /^\s*\("([^"]+)"\)/) {
 				$orig_desc = $1;
+			} elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("[^"]+$/i &&
+				 defined $rawlines[$linenr] &&
+				 $rawlines[$linenr] =~ /^\s*[^"]+"\)/) {
+				$line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("([^"]+)$/i;
+				$orig_desc = $1;
+				$rawlines[$linenr] =~ /^\s*([^"]+)"\)/;
+				$orig_desc .= " " . $1;
 			}
 
 			($id, $description) = git_commit_info($orig_commit,


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