I grew weary of looking up the appropriate
maintainer email address(es) to CC: for a patch.

I added flags to the MAINTAINERS file

F:      file pattern

for each maintained block and a script to parse
the modified blocks for maintainer and list
email addresses.

perl scripts/get_maintainer.pl <patch>

gives the appropriate maintainer(s).

Please apply.

cheers,  Joe

--- /dev/null   2007-08-10 07:32:20.684406250 -0700
+++ scripts/get_maintainer.pl   2007-08-11 22:33:30.000000000 -0700
@@ -0,0 +1,212 @@
+#!/usr/bin/perl -w
+# (c) 2007, Joe Perches <[EMAIL PROTECTED]>
+#           created from checkpatch.pl
+# Licensed under the terms of the GNU GPL License version 2
+
+use strict;
+
+my $P = $0;
+$P =~ [EMAIL PROTECTED]/@@g;
+
+my $V = '0.01';
+
+use Getopt::Long qw(:config no_auto_abbrev);
+
+my $tree = "./";
+my $email_maintainer = 1;
+my $email_list = 1;
+my $email_subscriber_list = 0;
+
+my %saw;
+
+GetOptions(
+          'tree=s' => \$tree,
+          'm!' => \$email_maintainer,
+          'l!' => \$email_list,
+          's!' => \$email_subscriber_list,
+          ) or exit;
+
+my $exit = 0;
+
+if ($#ARGV < 0 ||
+    ($email_maintainer == 0 && $email_list == 0 && $email_subscriber_list == 
0)) {
+    print "usage: $P [options] patchfile\n";
+    print "version: $V\n";
+    print "  --tree [path] => linux kernel source path\n";
+    print "  --m => include maintainer(s) if any\n";
+    print "  --l => include list(s) if any\n";
+    print "  --s => include subscriber only list(s) if any\n";
+    print "Default: [--m --l]\n";
+    print "Be sure to select something...\n";
+    exit(1);
+}
+
+if ($tree && !top_of_kernel_tree($tree)) {
+    if (${tree} ne "") {
+       print "'${tree}' ";
+    } else {
+       print "The current directory ";
+    }
+    print "doesn't appear to be a linux kernel source tree\n";
+    exit(2);
+}
+
+## Read MAINTAINERS for type/value pairs
+
+my @typevalue = ();
+open(MAINT, "<${tree}MAINTAINERS") || die "$P: Can't open 
${tree}MAINTAINERS\n";
+while (<MAINT>) {
+    if (m/^(\C):\s*(.*)/) {
+       my $type = $1;
+       my $value = $2;
+       if ($type eq "F") {              ##Filename pattern matching
+           $value =~ [EMAIL PROTECTED]@[EMAIL PROTECTED];       ##Convert . to 
\.
+           $value =~ s/\*/\.\*/g;       ##Convert * to .*
+       }
+       push(@typevalue, "$type:$value");
+    } elsif (!/^(\s)*$/) {
+       push(@typevalue, $_);
+    }
+}
+close(MAINT);
+
+## Find the patched filenames
+
+my @patchedfiles = ();
+open(PATCH, "<$ARGV[0]") or die "Can't open $ARGV[0]\n";
+while (<PATCH>) {
+    if (m/^\+\+\+\s+(\S+)/) {
+       my $file = $1;
+       $file =~ [EMAIL PROTECTED]/]*/@@;
+       $file =~ [EMAIL PROTECTED]@@;
+       push(@patchedfiles, $file);
+    }
+}
+close(PATCH);
+
+# Sort and uniq patchedfiles
+
+undef %saw;
[EMAIL PROTECTED] = sort @patchedfiles;
[EMAIL PROTECTED] = grep(!$saw{$_}++, @patchedfiles);
+
+# Find responsible parties
+
+my @email_to = ();
+foreach (@patchedfiles) {
+    my $patchedfile = $_;
+    my $tvi = 0;
+
+    foreach (@typevalue) {
+       if (m/^(\C):(.*)/) {
+           my $type = $1;
+           my $value = $2;
+           if ($type eq 'F') {
+               if (file_match_pattern($patchedfile, $value)) {
+                   my $ptvi = $tvi - 1;
+                   while ($ptvi >= 0) {
+                       my $tv = $typevalue[$ptvi];
+                       if ($tv =~ m/^(\C):(.*)/) {
+                           my $ptype = $1;
+                           my $pvalue = $2;
+                           if ($ptype eq "L") {
+                               my $subscr = $pvalue;
+                               if ($subscr =~ m/\s*\(subscribers-only\)/) {
+                                   if ($email_subscriber_list > 0) {
+                                       $subscr =~ s/\s*\(subscribers-only\)//g;
+                                       push(@email_to, $subscr);
+                                   }
+                               } else {
+                                   if ($email_list > 0) {
+                                       push(@email_to, $pvalue);
+                                   }
+                               }
+                           } elsif ($ptype eq "M") {
+                               if ($email_maintainer > 0) {
+                                   if ($ptvi >= 0) {
+                                       my $tv = $typevalue[$ptvi - 1];
+                                       if ($tv =~ m/^(\C):(.*)/) {
+                                           if ($1 eq "P") {
+                                               push(@email_to, "$2 <$pvalue>");
+                                           } else {
+                                               push(@email_to, $pvalue);
+                                           }
+                                       }
+                                   } else {
+                                       push(@email_to, $pvalue);
+                                   }
+                               }
+                           }
+                           $ptvi--;
+                       } else {
+                           $ptvi = -1;
+                       }
+                   }
+               }
+           }
+       }
+       $tvi++;
+    }
+}
+
+## sort and uniq email_to
+
[EMAIL PROTECTED] = sort @email_to;
+undef %saw;
[EMAIL PROTECTED] = grep(!$saw{$_}++, @email_to);
+
+## add lk if noone else...
+
+my $address_cnt = @email_to;
+if ($address_cnt == 0 && $email_list > 0) {
+    push(@email_to, "[EMAIL PROTECTED]");
+}
+print(join(", ", @email_to));
+print("\n");
+
+exit($exit);
+
+sub file_match_pattern {
+    my ($file, $pattern) = @_;
+    if (substr($pattern, -1) eq "/") {
+       if ($file =~ [EMAIL PROTECTED]@) {
+           return 1;
+       }
+    } else {
+       if ($file =~ [EMAIL PROTECTED]@) {
+           my $s1 = ($file =~ tr@/@@);
+           my $s2 = ($pattern =~ tr@/@@);
+           if ($s1 == $s2) {
+               return 1;
+           }
+       }
+    }
+    return 0;
+}
+
+sub top_of_kernel_tree {
+       my ($tree) = @_;
+
+       if ($tree ne "" && substr($tree,length($tree)-1,1) ne "/") {
+           $tree = $tree . "/";
+       }
+       if (   (-f "${tree}COPYING")
+           && (-f "${tree}CREDITS")
+           && (-f "${tree}Kbuild")
+           && (-f "${tree}MAINTAINERS")
+           && (-f "${tree}Makefile")
+           && (-f "${tree}README")
+           && (-d "${tree}Documentation")
+           && (-d "${tree}arch")
+           && (-d "${tree}include")
+           && (-d "${tree}drivers")
+           && (-d "${tree}fs")
+           && (-d "${tree}init")
+           && (-d "${tree}ipc")
+           && (-d "${tree}kernel")
+           && (-d "${tree}lib")
+           && (-d "${tree}scripts")) {
+               return 1;
+       }
+       return 0;
+}


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