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Subject[PATCH] checkpatch: add --max-file-size option
Date
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.branden@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
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