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[PATCH 1/1] scripts: check commit message length to fit 75 characters
From: |
Denis V. Lunev |
Subject: |
[PATCH 1/1] scripts: check commit message length to fit 75 characters |
Date: |
Wed, 28 Sep 2022 18:25:50 +0200 |
There are a lot of commits descriptions which are rendered in the
'git log' with line wrap. Apparently, this is looking awkward. Let us
add check into checkpatch.pl for that.
I am not very good Perl developer, but there is an implementation in
Linux kernel's checkpatch.pl. Linux kernel people have faced a lot of
obstacles here thus direct port from them looks beneficial.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Alexey Kardashevskiy <aik@ozlabs.ru>
CC: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
CC: "Marc-André Lureau" <marcandre.lureau@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Eric Blake <eblake@redhat.com>
CC: Markus Armbruster <armbru@redhat.com>
---
roms/SLOF | 2 +-
scripts/checkpatch.pl | 26 ++++++++++++++++++++++++++
2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/roms/SLOF b/roms/SLOF
index 6b6c16b4b4..5b4c5acdcd 160000
--- a/roms/SLOF
+++ b/roms/SLOF
@@ -1 +1 @@
-Subproject commit 6b6c16b4b40763507cf1f518096f3c3883c5cf2d
+Subproject commit 5b4c5acdcd552a4e1796aeca6bb700f6cbb0282d
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d900d18048..dc5841a1aa 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -36,6 +36,18 @@ my $root;
my %debug;
my $help = 0;
+our $signature_tags = qr{(?xi:
+ Signed-off-by:|
+ Co-developed-by:|
+ Acked-by:|
+ Tested-by:|
+ Reviewed-by:|
+ Reported-by:|
+ Suggested-by:|
+ To:|
+ Cc:
+)};
+
sub help {
my ($exitcode) = @_;
@@ -1303,6 +1315,7 @@ sub process {
my $in_header_lines = $file ? 0 : 1;
my $in_commit_log = 0; #Scanning lines before patch
+ my $commit_log_long_line = 0;
my $reported_maintainer_file = 0;
my $non_utf8_charset = 0;
@@ -1585,6 +1598,19 @@ sub process {
WARN("8-bit UTF-8 used in possible commit log\n" .
$herecurr);
}
+ if ($in_commit_log && !$commit_log_long_line && length($line) > 75 &&
+ !($line =~ /^\s*[a-zA-Z0-9_\/\.]+\s+\|\s+\d+/ ||
+ # file delta changes
+ $line =~ /^\s*(?:[\w\.\-\+]*\/)++[\w\.\-\+]+:/ ||
+ # filename then :
+ $line =~ /^\s*(?:Fixes:|Link:|$signature_tags)/i
+ # A Fixes: or Link: line or signature tag line
+ )) {
+ WARN("Possible unwrapped commit description (prefer a maximum " .
+ "75 chars per line)\n" . $herecurr);
+ $commit_log_long_line = 1;
+ }
+
# ignore non-hunk lines and lines being removed
next if (!$hunk_line || $line =~ /^-/);
--
2.34.1
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