Add a warning for fixes tags that does not fall in line with the
standards specified by the community.
Signed-off-by: Niklas Söderlund <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Louis Peens <[email protected]>
---
* Changes since v2
- Change the pattern to match on 'fixes:?' to catch more malformed
fixes tags.
* Changes since v1
- Update the documentation wording and add mention one cause of the
message can be that email program splits the tag over multiple lines.
---
Documentation/dev-tools/checkpatch.rst | 8 +++++
scripts/checkpatch.pl | 41 ++++++++++++++++++++++++++
2 files changed, 49 insertions(+)
diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst
index b52452bc2963..8c8456a3bd18 100644
--- a/Documentation/dev-tools/checkpatch.rst
+++ b/Documentation/dev-tools/checkpatch.rst
@@ -612,6 +612,14 @@ Commit message
See: https://www.kernel.org/doc/html/latest/process/submitting-patches.html#describe-your-changes
+ **BAD_FIXES_TAG**
+ The Fixes: tag is malformed or does not fall in line with the standards
+ specified by the community. This can occur if the tag have been split into
+ multiple lines (e.g., when pasted in email program with word wrapping
+ enabled).
+
+ See: https://www.kernel.org/doc/html/latest/process/submitting-patches.html#describe-your-changes
+
Comparison style
----------------
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 79e759aac543..a250bda52c66 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3140,6 +3140,47 @@ sub process {
}
}
+# Check Fixes: styles is correct
+ if (!$in_header_lines && $line =~ /^fixes:?/i) {
+ my $orig_commit = "";
+ my $id = "0123456789ab";
+ my $title = "commit title";
+ my $tag_case = 1;
+ my $tag_space = 1;
+ my $id_length = 1;
+ my $id_case = 1;
+ my $title_has_quotes = 0;
+
+ if ($line =~ /(fixes:?)\s+([0-9a-f]{5,})\s+($balanced_parens)/i) {
+ my $tag = $1;
+ $orig_commit = $2;
+ $title = $3;
+
+ $tag_case = 0 if $tag eq "Fixes:";
+ $tag_space = 0 if ($line =~ /^fixes:? [0-9a-f]{5,} ($balanced_parens)/i);
+
+ $id_length = 0 if ($orig_commit =~ /^[0-9a-f]{12}$/i);
+ $id_case = 0 if ($orig_commit !~ /[A-F]/);
+
+ # Always strip leading/trailing parens then double quotes if existing
+ $title = substr($title, 1, -1);
+ if ($title =~ /^".*"$/) {
+ $title = substr($title, 1, -1);
+ $title_has_quotes = 1;
+ }
+ }
+
+ ($id, $title) = git_commit_info($orig_commit, $id,
+ $title);
+
+ if ($tag_case || $tag_space || $id_length || $id_case ||
+ !$title_has_quotes) {
+ WARN("BAD_FIXES_TAG",
+ "Please use correct Fixes: style 'Fixes: <12 chars of sha1> (\"<title line>\")' - ie: 'Fixes: $id (\"$title\")'\n" . $herecurr);
+
+ }
+ }
+
# Check email subject for common tools that don't need to be mentioned
if ($in_header_lines &&
$line =~ /^Subject:.*\b(?:checkpatch|sparse|smatch)\b[^:]/i) {
--
2.37.3
On Thu, 2022-09-08 at 13:43 +0200, Niklas S?derlund wrote:
> Add a warning for fixes tags that does not fall in line with the
> standards specified by the community.
Thanks. Good on you for adding the .rst block too.
This seems OK but maybe:
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
[]
> @@ -3140,6 +3140,47 @@ sub process {
> }
> }
>
> +# Check Fixes: styles is correct
> + if (!$in_header_lines && $line =~ /^fixes:?/i) {
> + my $orig_commit = "";
> + my $id = "0123456789ab";
> + my $title = "commit title";
> + my $tag_case = 1;
> + my $tag_space = 1;
> + my $id_length = 1;
> + my $id_case = 1;
> + my $title_has_quotes = 0;
> +
> + if ($line =~ /(fixes:?)\s+([0-9a-f]{5,})\s+($balanced_parens)/i) {
> + my $tag = $1;
> + $orig_commit = $2;
> + $title = $3;
> +
> + $tag_case = 0 if $tag eq "Fixes:";
> + $tag_space = 0 if ($line =~ /^fixes:? [0-9a-f]{5,} ($balanced_parens)/i);
> +
> + $id_length = 0 if ($orig_commit =~ /^[0-9a-f]{12}$/i);
> + $id_case = 0 if ($orig_commit !~ /[A-F]/);
> +
> + # Always strip leading/trailing parens then double quotes if existing
> + $title = substr($title, 1, -1);
> + if ($title =~ /^".*"$/) {
> + $title = substr($title, 1, -1);
> + $title_has_quotes = 1;
> + }
> + }
> +
> + ($id, $title) = git_commit_info($orig_commit, $id,
> + $title);
Maybe add another test for the title being different from the commit.
Something like:
my ($cid, $ctitle) = git_commit_info($orig_commit, $id, $title);
> +
> + if ($tag_case || $tag_space || $id_length || $id_case ||
$ctitle != $title ||
> + !$title_has_quotes) {
> + WARN("BAD_FIXES_TAG",
> + "Please use correct Fixes: style 'Fixes: <12 chars of sha1> (\"<title line>\")' - ie: 'Fixes: $id (\"$title\")'\n" . $herecurr);
"Please use correct Fixes: style 'Fixes: <12 chars of sha1> (\"<title line>\")' - ie: 'Fixes: $id (\"$ctitle\")'\n" . $herecurr);
Hi Joe,
Thanks for your feedback,
On 2022-09-08 08:09:01 -0700, Joe Perches wrote:
> Maybe add another test for the title being different from the commit.
That is a good idea, will do a v4.
--
Kind Regards,
Niklas S?derlund