[PATCH] get_maintainer.pl: Allow "K:" pattern tests to matchnon-patch text

[Joe Perches]

Extend the usage of the K section in the MAINTAINERS file to support matching
regular expressions to any arbitrary text that may precede the patch itself.
For example, the commit message or mail headers generated by git-format-patch.

Original-patch-by: L. Alberto GimÃnez <agimenez@xxxxxxxxxxx>
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>

---

> On Tue, 2011-01-25 at 01:25 +0100, L. Alberto GimÃnez wrote:
> feel free to fix the patch.

 scripts/get_maintainer.pl |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 139e0ff..d29a8d7 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -420,6 +420,14 @@ foreach my $file (@ARGV) {
 
 	open(my $patch, "< $file")
 	    or die "$P: Can't open $file: $!\n";
+
+	# We can check arbitrary information before the patch
+	# like the commit message, mail headers, etc...
+	# This allows us to match arbitrary keywords against any part
+	# of a git format-patch generated file (subject tags, etc...)
+
+	my $patch_prefix = "";			#Parsing the intro
+
 	while (<$patch>) {
 	    my $patch_line = $_;
 	    if (m/^\+\+\+\s+(\S+)/) {
@@ -428,13 +436,14 @@ foreach my $file (@ARGV) {
 		$filename =~ s@\n@@;
 		$lastfile = $filename;
 		push(@files, $filename);
+		$patch_prefix = "^[+-].*";	#Now parsing the actual patch
 	    } elsif (m/^\@\@ -(\d+),(\d+)/) {
 		if ($email_git_blame) {
 		    push(@range, "$lastfile:$1:$2");
 		}
 	    } elsif ($keywords) {
 		foreach my $line (keys %keyword_hash) {
-		    if ($patch_line =~ m/^[+-].*$keyword_hash{$line}/x) {
+		    if ($patch_line =~ m/${patch_prefix}$keyword_hash{$line}/x) {
 			push(@keyword_tvi, $line);
 		    }
 		}


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