Add --max-file-size option (default off) to limit size of files that checkpatch processes. Such an option is useful when checkpatch is run automatically during checkins to a source control system and someone acccidently or purposely attempt to commit massive size files to the system. If the checkpatch script runs on such files it could take a long time to run and limit the server's ability to perform other operations.
Signed-off-by: Scott Branden <scott.bran...@broadcom.com> --- scripts/checkpatch.pl | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 9fa90457b270..5f0304a9f013 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -53,6 +53,7 @@ my %ignore_type = (); my @ignore = (); my $help = 0; my $configuration_file = ".checkpatch.conf"; +my $max_file_size = -1; my $max_line_length = 100; my $ignore_perl_version = 0; my $minimum_perl_version = 5.10.0; @@ -99,6 +100,7 @@ Options: --types TYPE(,TYPE2...) show only these comma separated message types --ignore TYPE(,TYPE2...) ignore various comma separated message types --show-types show the specific message type in the output + --max-file-size=n set the maximum file size, if exceeded, exit --max-line-length=n set the maximum line length, (default $max_line_length) if exceeded, warn on patches requires --strict for use with --file @@ -219,6 +221,7 @@ GetOptions( 'types=s' => \@use, 'show-types!' => \$show_types, 'list-types!' => \$list_types, + 'max-file-size=i' => \$max_file_size, 'max-line-length=i' => \$max_line_length, 'min-conf-desc-length=i' => \$min_conf_desc_length, 'tab-size=i' => \$tabsize, @@ -1061,6 +1064,15 @@ for my $filename (@ARGV) { } else { $vname = $filename; } + + if ($max_file_size > 0) { + my $filesize = -s$FILE; + + if ($filesize > $max_file_size) { + die "$P: $filename: filesize:$filesize > $max_file_size\n"; + } + } + while (<$FILE>) { chomp; push(@rawlines, $_); -- 2.17.1