Messages in this thread Patch in this message | | | From | Nicholas Brown <> | Subject | [PATCH] checkpatch: warn if changed lines exceeds a maximum size | Date | Tue, 30 Jan 2018 19:01:23 +0000 |
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Changed lines is the total of inserted and deleted lines. By default there is no limit, --max-changed-lines may be used to set a value. Some users may wish to encourage that patches are split into smaller parts using this. See Documentation/process/submitting-patches.rst#split-changes
Signed-off-by: Nicholas Brown <nick.brown@att.com> --- scripts/checkpatch.pl | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 31031f10fe56..2847109b4def 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -49,6 +49,7 @@ my @ignore = (); my $help = 0; my $configuration_file = ".checkpatch.conf"; my $max_line_length = 80; +my $max_changed_lines; # undef = no max my $ignore_perl_version = 0; my $minimum_perl_version = 5.10.0; my $min_conf_desc_length = 4; @@ -92,6 +93,8 @@ Options: --ignore TYPE(,TYPE2...) ignore various comma separated message types --show-types show the specific message type in the output --max-line-length=n set the maximum line length, if exceeded, warn + --max-changed-lines=n set the maximum number of changed lines allowed, + if exceeded, warn. (insertions + deletions) --min-conf-desc-length=n set the min description length, if shorter, warn --root=PATH PATH to the kernel tree root --no-summary suppress the per-file summary @@ -209,6 +212,7 @@ GetOptions( 'show-types!' => \$show_types, 'list-types!' => \$list_types, 'max-line-length=i' => \$max_line_length, + 'max-changed-lines=i' => \$max_changed_lines, 'min-conf-desc-length=i' => \$min_conf_desc_length, 'root=s' => \$root, 'summary!' => \$summary, @@ -2165,6 +2169,8 @@ sub process { my $filename = shift; my $linenr=0; + my $inserted_lines_total=0; + my $deleted_lines_total=0; my $prevline=""; my $prevrawline=""; my $stashline=""; @@ -2233,6 +2239,14 @@ sub process { push(@fixed, $rawline) if ($fix); + if ($rawline=~/^\+/) { + $inserted_lines_total++ + } + + if ($rawline=~/^-/) { + $deleted_lines_total++ + } + if ($rawline=~/^\+\+\+\s+(\S+)/) { $setup_docs = 0; if ($1 =~ m@Documentation/admin-guide/kernel-parameters.rst$@) { @@ -2306,6 +2320,11 @@ sub process { $prefix = ''; + if (defined $max_changed_lines && + ($inserted_lines_total+$deleted_lines_total > $max_changed_lines)) { + WARN("MAX_CHANGED_LINES", "please split the change into smaller parts\n"); + } + $realcnt = 0; $linenr = 0; $fixlinenr = -1; -- 2.14.1
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