path: root/scripts/get_maintainer.pl

#!/usr/bin/perl -w
# (c) 2007, Joe Perches <joe@perches.com>
#           created from checkpatch.pl
#
# Print selected MAINTAINERS information for
# the files modified in a patch or for a file
#
# usage: perl scripts/get_maintainers.pl [OPTIONS] <patch>
#        perl scripts/get_maintainers.pl [OPTIONS] -f <file>
#
# Licensed under the terms of the GNU GPL License version 2

use strict;

my $P = $0;
my $V = '0.20';

use Getopt::Long qw(:config no_auto_abbrev);

my $lk_path = "./";
my $email = 1;
my $email_usename = 1;
my $email_maintainer = 1;
my $email_list = 1;
my $email_subscriber_list = 0;
my $email_git = 1;
my $email_git_penguin_chiefs = 0;
my $email_git_min_signatures = 1;
my $email_git_max_maintainers = 5;
my $email_git_min_percent = 5;
my $email_git_since = "1-year-ago";
my $email_git_blame = 0;
my $output_multiline = 1;
my $output_separator = ", ";
my $scm = 0;
my $web = 0;
my $subsystem = 0;
my $status = 0;
my $from_filename = 0;
my $pattern_depth = 0;
my $version = 0;
my $help = 0;

my $exit = 0;

my @penguin_chief = ();
push(@penguin_chief,"Linus Torvalds:torvalds\@linux-foundation.org");
#Andrew wants in on most everything - 2009/01/14
#push(@penguin_chief,"Andrew Morton:akpm\@linux-foundation.org");

my @penguin_chief_names = ();
foreach my $chief (@penguin_chief) {
    if ($chief =~ m/^(.*):(.*)/) {
	my $chief_name = $1;
	my $chief_addr = $2;
	push(@penguin_chief_names, $chief_name);
    }
}
my $penguin_chiefs = "\(" . join("|",@penguin_chief_names) . "\)";

# rfc822 email address - preloaded methods go here.
my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
my $rfc822_char = '[\\000-\\377]';

if (!GetOptions(
		'email!' => \$email,
		'git!' => \$email_git,
		'git-chief-penguins!' => \$email_git_penguin_chiefs,
		'git-min-signatures=i' => \$email_git_min_signatures,
		'git-max-maintainers=i' => \$email_git_max_maintainers,
		'git-min-percent=i' => \$email_git_min_percent,
		'git-since=s' => \$email_git_since,
		'git-blame!' => \$email_git_blame,
		'm!' => \$email_maintainer,
		'n!' => \$email_usename,
		'l!' => \$email_list,
		's!' => \$email_subscriber_list,
		'multiline!' => \$output_multiline,
		'separator=s' => \$output_separator,
		'subsystem!' => \$subsystem,
		'status!' => \$status,
		'scm!' => \$scm,
		'web!' => \$web,
		'pattern-depth=i' => \$pattern_depth,
		'f|file' => \$from_filename,
		'v|version' => \$version,
		'h|help' => \$help,
		)) {
    usage();
    die "$P: invalid argument\n";
}

if ($help != 0) {
    usage();
    exit 0;
}

if ($version != 0) {
    print("${P} ${V}\n");
    exit 0;
}

if ($#ARGV < 0) {
    usage();
    die "$P: argument missing: patchfile or -f file please\n";
}

if ($output_separator ne ", ") {
    $output_multiline = 0;
}

my $selections = $email + $scm + $status + $subsystem + $web;
if ($selections == 0) {
    usage();
    die "$P:  Missing required option: email, scm, status, subsystem or web\n";
}

if ($email &&
    ($email_maintainer + $email_list + $email_subscriber_list +
     $email_git + $email_git_penguin_chiefs + $email_git_blame) == 0) {
    usage();
    die "$P: Please select at least 1 email option\n";
}

if (!top_of_kernel_tree($lk_path)) {
    die "$P: The current directory does not appear to be "
	. "a linux kernel source tree.\n";
}

## Read MAINTAINERS for type/value pairs

my @typevalue = ();
open(MAINT, "<${lk_path}MAINTAINERS") || die "$P: Can't open MAINTAINERS\n";
while (<MAINT>) {
    my $line = $_;

    if ($line =~ m/^(\C):\s*(.*)/) {
	my $type = $1;
	my $value = $2;

	##Filename pattern matching
	if ($type eq "F" || $type eq "X") {
	    $value =~ s@\.@\\\.@g;       ##Convert . to \.
	    $value =~ s/\*/\.\*/g;       ##Convert * to .*
	    $value =~ s/\?/\./g;         ##Convert ? to .
	    ##if pattern is a directory and it lacks a trailing slash, add one
	    if ((-d $value)) {
		$value =~ s@([^/])$@$1/@;
	    }
	}
	push(@typevalue, "$type:$value");
    } elsif (!/^(\s)*$/) {
	$line =~ s/\n$//g;
	push(@typevalue, $line);
    }
}
close(MAINT);

my %mailmap;

open(MAILMAP, "<${lk_path}.mailmap") || warn "$P: Can't open .mailmap\n";
while (<MAILMAP>) {
    my $line = $_;

    next if ($line =~ m/^\s*#/);
    next if ($line =~ m/^\s*$/);

    my