New patch to review for coreboot: uti/lint/checkpatch: add --exclude to ignore specific directories

[Martin Roth]

Martin Roth ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18568

-gerrit

commit 6f0c021c8448531514bdcb654862c9909c5ffd66
Author: Martin Roth 
Date:   Sat Mar 4 18:17:35 2017 -0700

uti/lint/checkpatch: add --exclude to ignore specific directories

checkpatch: add option for excluding directories
    when importing code from external sources

Using --exclude <dir> we should be able to exclude a list of well
    defined locations in the tree that carry sources from other projects
    with other styles.

This comes from the 01org/zephyr project in github:
    Original-Change-Id: I7d321e85eed6bc37d5c6879ae88e21d20028a433
    Original-Signed-off-by: Anas Nashif

Change-Id: Icc9e841e7d84026d6ab857ff90b0f093515ccaad
    Signed-off-by: Martin Roth 
---
 util/lint/checkpatch.pl | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/util/lint/checkpatch.pl b/util/lint/checkpatch.pl
index 84574f1..031aa34 100755
--- a/util/lint/checkpatch.pl
+++ b/util/lint/checkpatch.pl
@@ -45,6 +45,7 @@ my %use_type = ();
 my @use = ();
 my %ignore_type = ();
 my @ignore = ();
+my @exclude = ();
 my $help = 0;
 my $configuration_file = ".checkpatch.conf";
 my $max_line_length = 80;
@@ -86,6 +87,7 @@ Options:
   --list-types               list the possible message types
   --types TYPE(,TYPE2...)    show only these comma separated message types
   --ignore TYPE(,TYPE2...)   ignore various comma separated message types
+  --exclude DIR(,DIR22...)   exclude directories
   --show-types               show the specific message type in the output
   --max-line-length=n        set the maximum line length, if exceeded, warn
   --min-conf-desc-length=n   set the min description length, if shorter, warn
@@ -190,6 +192,7 @@ GetOptions(
    'subjective!'	=> $check,
    'strict!'	=> $check,
    'ignore=s'	=> @ignore,
+	'exclude=s'	=> @exclude,
    'types=s'	=> @use,
    'show-types!'	=> $show_types,
    'list-types!'	=> $list_types,
@@ -2277,6 +2280,16 @@ sub process {
    		$found_file = 1;
    	}

+		my $skipme = 0;
+		foreach (@exclude) {
+			if ($realfile =~ m@^(?:$_/)@) {
+				$skipme = 1;
+			}
+		}
+		if ($skipme) {
+			next;
+		}
+
 #make up the handle for any error we report on this line
    	if ($showfile) {
    		$prefix = "$realfile:$realline: "