[PATCH v2] scripts/checkpatch.pl: check for placeholders in cover letter patches

[Manos Pitsidianakis <manos.pitsidianakis@linaro.org>]

Check if a file argument is a cover letter patch produced by
git-format-patch --cover-letter; It is initialized with subject suffix "
*** SUBJECT HERE ***" and body prefix " *** BLURB HERE ***". If they
exist, warn the user.

Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
---
Range-diff against v1:
1:  64b7ec2287 ! 1:  9bf816eb4c scripts/checkpatch.pl: check for placeholders in cover letter patches
    @@ scripts/checkpatch.pl: sub process {
     +# --cover-letter; It is initialized with subject suffix
     +# " *** SUBJECT HERE ***" and body prefix " *** BLURB HERE ***"
     +		if ($in_header_lines &&
    -+		    $rawline =~ /^Subject:.+[*]{3} SUBJECT HERE [*]{3}\s*$/) {
    -+        WARN("Patch appears to be a cover letter with uninitialized subject" .
    -+             " '*** SUBJECT HERE ***'\n$hereline\n");
    ++				$rawline =~ /^Subject:.+[*]{3} SUBJECT HERE [*]{3}\s*$/) {
    ++			WARN("Patch appears to be a cover letter with " .
    ++						"uninitialized subject '*** SUBJECT HERE ***'\n$hereline\n");
     +		}
     +
     +		if ($rawline =~ /^[*]{3} BLURB HERE [*]{3}\s*$/) {
    -+        WARN("Patch appears to be a cover letter with leftover placeholder " .
    -+             "text '*** BLURB HERE ***'\n$hereline\n");
    ++			WARN("Patch appears to be a cover letter with " .
    ++						"leftover placeholder text '*** BLURB HERE ***'\n$hereline\n");
     +		}
     +
      		if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ &&

 scripts/checkpatch.pl | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 7026895074..9a8d49f1d8 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1650,6 +1650,20 @@ sub process {
 			$non_utf8_charset = 1;
 		}
 
+# Check if this is a cover letter patch produced by git-format-patch
+# --cover-letter; It is initialized with subject suffix
+# " *** SUBJECT HERE ***" and body prefix " *** BLURB HERE ***"
+		if ($in_header_lines &&
+				$rawline =~ /^Subject:.+[*]{3} SUBJECT HERE [*]{3}\s*$/) {
+			WARN("Patch appears to be a cover letter with " .
+						"uninitialized subject '*** SUBJECT HERE ***'\n$hereline\n");
+		}
+
+		if ($rawline =~ /^[*]{3} BLURB HERE [*]{3}\s*$/) {
+			WARN("Patch appears to be a cover letter with " .
+						"leftover placeholder text '*** BLURB HERE ***'\n$hereline\n");
+		}
+
 		if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ &&
 		    $rawline =~ /$NON_ASCII_UTF8/) {
 			WARN("8-bit UTF-8 used in possible commit log\n" . $herecurr);

base-commit: 11be70677c70fdccd452a3233653949b79e97908
-- 
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