[Qemu-devel] [RFC PATCH 3/5] checkpatch: ignore email headers better

[Thomas Huth]

This is a port of the following commit from the Linux kernel:

commit 29ee1b0c67e0dd7dea8dd718e8326076bce5b6fe
Author: Joe Perches <address@hidden>
Date:   Wed Aug 6 16:10:35 2014 -0700

    checkpatch: ignore email headers better

    There are some patches created by git format-patch that when scanned by
    checkpatch report errors on lines like

    To: address.tld

    This is a checkpatch false positive.

    Improve the logic a bit to ignore folded email headers to avoid emitting
    these messages.

    Signed-off-by: Joe Perches <address@hidden>
    Signed-off-by: Andrew Morton <address@hidden>
    Signed-off-by: Linus Torvalds <address@hidden>

Signed-off-by: Thomas Huth <address@hidden>
---
 scripts/checkpatch.pl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 0f88e3b..52ad64a 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1094,7 +1094,7 @@ sub process {
        my $signoff = 0;
        my $is_patch = 0;
 
-       my $in_header_lines = 1;
+       my $in_header_lines = $file ? 0 : 1;
        my $in_commit_log = 0;          #Scanning lines before patch
 
        my $non_utf8_charset = 0;
@@ -1321,7 +1321,8 @@ sub process {
 # Check if it's the start of a commit log
 # (not a header line and we haven't seen the patch filename)
                if ($in_header_lines && $realfile =~ /^$/ &&
-                   $rawline !~ /^(commit\b|from\b|\w+:).+$/i) {
+                   !($rawline =~ /^\s+\S/ ||
+                     $rawline =~ /^(commit\b|from\b|[\w-]+:).*$/i)) {
                        $in_header_lines = 0;
                        $in_commit_log = 1;
                }
-- 
1.8.3.1