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).
Modifications since last post:
Added options to control email address style and multiple address separator
Please apply.
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
new file mode 100755
index 0000000..3e5cc6c
--- /dev/null
+++ b/scripts/get_maintainer.pl
@@ -0,0 +1,217 @@
+#!/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 =~ s@.*/@@g;
+
+my $V = '0.02';
+
+use Getopt::Long qw(:config no_auto_abbrev);
+
+my $tree = "./";
+my $email_maintainer = 1;
+my $email_maintainer_name = 1;
+my $email_list = 1;
+my $email_subscriber_list = 0;
+my $email_separator = ", ";
+my %saw;
+
+GetOptions(
+ 'tree=s' => \$tree,
+ 'm!' => \$email_maintainer,
+ 'n!' => \$email_maintainer_name,
+ 'l!' => \$email_list,
+ 's!' => \$email_subscriber_list,
+ 'separator=s' => \$email_separator,
+ ) 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: $V\n";
+ print " --tree [path] => linux kernel source path\n";
+ print " --m => include maintainer(s) if any\n";
+ print " --n => include maintainer name 'Full Name <addr\@domain.tld>'\n";
+ print " --l => include list(s) if any\n";
+ print " --s => include subscriber only list(s) if any\n";
+ print " --separator [, ] => separator for multiple addresses\n";
+ print "Default: [--m --l --separator \", \"]\n";
+ print "Be sure to select something...\n";
+ exit(1);
+}
+
+if ($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 =~ s@\.@\\\.@g; ##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 =~ s@^[^/]*/@@;
+ $file =~ s@\n@@;
+ push(@patchedfiles, $file);
+ }
+}
+close(PATCH);
+
+# Sort and uniq patchedfiles
+
+undef %saw;
+@patchedfiles = sort @patchedfiles;
+@patchedfiles = grep(!$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" && $email_maintainer_name > 0) {
+ push(@email_to, "$2 <$pvalue>");
+ } else {
+ push(@email_to, $pvalue);
+ }
+ }
+ } else {
+ push(@email_to, $pvalue);
+ }
+ }
+ }
+ $ptvi--;
+ } else {
+ $ptvi = -1;
+ }
+ }
+ }
+ }
+ }
+ $tvi++;
+ }
+}
+
+## sort and uniq email_to
+
+@email_to = sort @email_to;
+undef %saw;
+@email_to = grep(!$saw{$_}++, @email_to);
+
+## add lk if noone else...
+
+my $address_cnt = @email_to;
+if ($address_cnt == 0 && $email_list > 0) {
+ push(@email_to, "linux-kernel\@vger.kernel.org");
+}
+print(join($email_separator, @email_to));
+print("\n");
+
+exit($exit);
+
+sub file_match_pattern {
+ my ($file, $pattern) = @_;
+ if (substr($pattern, -1) eq "/") {
+ if ($file =~ m@^$pattern@) {
+ return 1;
+ }
+ } else {
+ if ($file =~ m@^$pattern@) {
+ 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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