#!/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_maintainer.pl [OPTIONS] <patch>#        perl scripts/get_maintainer.pl [OPTIONS] -f <file>## Licensed under the terms of the GNU GPL License version 2 use strict; my $P = $0;my $V = '0.24'; 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_penguin_chiefs = 0;my $email_git = 1;my $email_git_all_signature_types = 0;my $email_git_blame = 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_hg_since = "-365";my $email_remove_duplicates = 1;my $output_multiline = 1;my $output_separator = ", ";my $output_roles = 0;my $output_rolestats = 0;my $scm = 0;my $web = 0;my $subsystem = 0;my $status = 0;my $keywords = 1;my $sections = 0;my $file_emails = 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 = "\(" . join("|", @penguin_chief_names) . "\)"; # Signature types of people who are either# 	a) responsible for the code in question, or# 	b) familiar enough with it to give relevant feedbackmy @signature_tags = ();push(@signature_tags, "Signed-off-by:");push(@signature_tags, "Reviewed-by:");push(@signature_tags, "Acked-by:");my $signaturePattern = "\(" . join("|", @signature_tags) . "\)"; # rfc822 email address - preloaded methods go here.my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";my $rfc822_char = '[\\000-\\377]'; # VCS command support: class-like functions and strings my %VCS_cmds; my %VCS_cmds_git = (    "execute_cmd" => \&git_execute_cmd,    "available" => '(which("git") ne "") && (-d ".git")',    "find_signers_cmd" => "git log --no-color --since=\$email_git_since -- \$file",    "find_commit_signers_cmd" => "git log --no-color -1 \$commit",    "blame_range_cmd" => "git blame -l -L \$diff_start,+\$diff_length \$file",    "blame_file_cmd" => "git blame -l \$file",    "commit_pattern" => "^commit [0-9a-f]{40,40}",    "blame_commit_pattern" => "^([0-9a-f]+) "); my %VCS_cmds_hg = (    "execute_cmd" => \&hg_execute_cmd,    "available" => '(which("hg") ne "") && (-d ".hg")',    "find_signers_cmd" =>	"hg log --date=\$email_hg_since" .		" --template='commit {node}\\n{desc}\\n' -- \$file",    "find_commit_signers_cmd" => "hg log --template='{desc}\\n' -r \$commit",    "blame_range_cmd" => "",		# not supported    "blame_file_cmd" => "hg blame -c \$file",    "commit_pattern" => "^commit [0-9a-f]{40,40}",    "blame_commit_pattern" => "^([0-9a-f]+):"); if (-f "${lk_path}.get_maintainer.conf") {    my @conf_args;    open(my $conffile, '<', "${lk_path}.get_maintainer.conf")	or warn "$P: Can't open .get_maintainer.conf: $!\n";    while (<$conffile>) {	my $line = $_; 	$line =~ s/\s*\n?$//g;	$line =~ s/^\s*//g;	$line =~ s/\s+/ /g; 	next if ($line =~ m/^\s*#/);	next if ($line =~ m/^\s*$/); 	my @words = split(" ", $line);	foreach my $word (@words) {	    last if ($word =~ m/^#/);	    push (@conf_args, $word);	}    }    close($conffile);    unshift(@ARGV, @conf_args) if @conf_args;} if (!GetOptions(		'email!' => \$email,		'git!' => \$email_git,		'git-all-signature-types!' => \$email_git_all_signature_types,		'git-blame!' => \$email_git_blame,		'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,		'hg-since=s' => \$email_hg_since,		'remove-duplicates!' => \$email_remove_duplicates,		'm!' => \$email_maintainer,		'n!' => \$email_usename,		'l!' => \$email_list,		's!' => \$email_subscriber_list,		'multiline!' => \$output_multiline,		'roles!' => \$output_roles,		'rolestats!' => \$output_rolestats,		'separator=s' => \$output_separator,		'subsystem!' => \$subsystem,		'status!' => \$status,		'scm!' => \$scm,		'web!' => \$web,		'pattern-depth=i' => \$pattern_depth,		'k|keywords!' => \$keywords,		'sections!' => \$sections,		'fe|file-emails!' => \$file_emails,		'f|file' => \$from_filename,		'v|version' => \$version,		'h|help|usage' => \$help,		)) {    die "$P: invalid argument - use --help if necessary\n";} if ($help != 0) {    usage();    exit 0;} if ($version != 0) {    print("${P} ${V}\n");    exit 0;} if (-t STDIN && !@ARGV) {    # We're talking to a terminal, but have no command line arguments.    die "$P: missing patchfile or -f file - use --help if necessary\n";} if ($output_separator ne ", ") {    $output_multiline = 0;} if ($output_rolestats) {    $output_roles = 1;} if ($sections) {    $email = 0;    $email_list = 0;    $scm = 0;    $status = 0;    $subsystem = 0;    $web = 0;    $keywords = 0;} else {    my $selections = $email + $scm + $status + $subsystem + $web;    if ($selections == 0) {	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 + $email_git_blame) == 0) {    die "$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";} if ($email_git_all_signature_types) {    $signaturePattern = "(.+?)[Bb][Yy]:";} ## Read MAINTAINERS for type/value pairs my @typevalue = ();my %keyword_hash; open (my $maint, '<', "${lk_path}MAINTAINERS")    or 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)) {		$value =~ s@([^/])$@$1/@;	    }	} elsif ($type eq "K") {	    $keyword_hash{@typevalue} = $value;	}	push(@typevalue, "$type:$value");    } elsif (!/^(\s)*$/) {	$line =~ s/\n$//g;	push(@typevalue, $line);    }}close($maint); my %mailmap; if ($email_remove_duplicates) {    open(my $mailmap, '<', "${lk_path}.mailmap")	or warn "$P: Can't open .mailmap: $!\n";    while (<$mailmap>) {	my $line = $_; 	next if ($line =~ m/^\s*#/);	next if ($line =~ m/^\s*$/); 	my ($name, $address) = parse_email($line);	$line = format_email($name, $address, $email_usename); 	next if ($line =~ m/^\s*$/); 	if (exists($mailmap{$name})) {	    my $obj = $mailmap{$name};	    push(@$obj, $address);	} else {	    my @arr = ($address);	    $mailmap{$name} = \@arr;	}    }    close($mailmap);} ## use the filenames on the command line or find the filenames in the patchfiles my @files = ();my @range = ();my @keyword_tvi = ();my @file_emails = (); if (!@ARGV) {    push(@ARGV, "&STDIN");} foreach my $file (@ARGV) {    if ($file ne "&STDIN") {	##if $file is a directory and it lacks a trailing slash, add one	if ((-d $file)) {	    $file =~ s@([^/])$@$1/@;	} elsif (!(-f $file)) {	    die "$P: file '${file}' not found\n";	}    }    if ($from_filename) {	push(@files, $file);	if (-f $file && ($keywords || $file_emails)) {	    open(my $f, '<', $file)		or die "$P: Can't open $file: $!\n";	    my $text = do { local($/) ; <$f> };	    close($f);	    if ($keywords) {		foreach my $line (keys %keyword_hash) {		    if ($text =~ m/$keyword_hash{$line}/x) {			push(@keyword_tvi, $line);		    }		}	    }	    if ($file_emails) {		my @poss_addr = $text =~ m$[A-Za-zÀ-ÿ\"\' \,\.\+-]*\s*[\,]*\s*[\(\<\{]{0,1}[A-Za-z0-9_\.\+-]+\@[A-Za-z0-9\.-]+\.[A-Za-z0-9]+[\)\>\}]{0,1}$g;		push(@file_emails, clean_file_emails(@poss_addr));	    }	}    } else {	my $file_cnt = @files;	my $lastfile; 	open(my $patch, "< $file")	    or die "$P: Can't open $file: $!\n";	while (<$patch>) {	    my $patch_line = $_;	    if (m/^\+\+\+\s+(\S+)/) {		my $filename = $1;		$filename =~ s@^[^/]*/@@;		$filename =~ s@\n@@;		$lastfile = $filename;		push(@files, $filename);	    } elsif (m/^\@\@ -(\d+),(\d+)/) {		if ($email_git_blame) {		    push(@range, "$lastfile:$1:$2");		}	    } elsif ($keywords) {		foreach my $line (keys %keyword_hash) {		    if ($patch_line =~ m/^[+-].*$keyword_hash{$line}/x) {			push(@keyword_tvi, $line);		    }		}	    }	}	close($patch); 	if ($file_cnt == @files) {	    warn "$P: file '${file}' doesn't appear to be a patch.  "		. "Add -f to options?\n";	}	@files = sort_and_uniq(@files);    }} @file_emails = uniq(@file_emails); my @email_to = ();my @list_to = ();my @scm = ();my @web = ();my @subsystem = ();my @status = (); # Find responsible parties foreach my $file (@files) {     my %hash;    my $tvi = find_first_section();    while ($tvi < @typevalue) {	my $start = find_starting_index($tvi);	my $end = find_ending_index($tvi);	my $exclude = 0;	my $i; 	#Do not match excluded file patterns 	for ($i = $start; $i < $end; $i++) {	    my $line = $typevalue[$i];	    if ($line =~ m/^(\C):\s*(.*)/) {		my $type = $1;		my $value = $2;		if ($type eq 'X') {		    if (file_match_pattern($file, $value)) {			$exclude = 1;			last;		    }		}	    }	} 	if (!$exclude) {	    for ($i = $start; $i < $end; $i++) {		my $line = $typevalue[$i];		if ($line =~ m/^(\C):\s*(.*)/) {		    my $type = $1;		    my $value = $2;		    if ($type eq 'F') {			if (file_match_pattern($file, $value)) {			    my $value_pd = ($value =~ tr@/@@);			    my $file_pd = ($file  =~ tr@/@@);			    $value_pd++ if (substr($value,-1,1) ne "/");			    if ($pattern_depth == 0 ||				(($file_pd - $value_pd) < $pattern_depth)) {				$hash{$tvi} = $value_pd;			    }			}		    }		}	    }	} 	$tvi = $end + 1;    }     foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {	add_categories($line);	    if ($sections) {		my $i;		my $start = find_starting_index($line);		my $end = find_ending_index($line);		for ($i = $start; $i < $end; $i++) {		    my $line = $typevalue[$i];		    if ($line =~ /^[FX]:/) {		##Restore file patterns			$line =~ s/([^\\])\.([^\*])/$1\?$2/g;			$line =~ s/([^\\])\.$/$1\?/g;	##Convert . back to ?			$line =~ s/\\\./\./g;       	##Convert \. to .			$line =~ s/\.\*/\*/g;       	##Convert .* to *		    }		    $line =~ s/^([A-Z]):/$1:\t/g;		    print("$line\n");		}		print("\n");	    }    }     if ($email && $email_git) {	vcs_file_signoffs($file);    }     if ($email && $email_git_blame) {	vcs_file_blame($file);    }} if ($keywords) {    @keyword_tvi = sort_and_uniq(@keyword_tvi);    foreach my $line (@keyword_tvi) {	add_categories($line);    }} if ($email) {    foreach my $chief (@penguin_chief) {	if ($chief =~ m/^(.*):(.*)/) {	    my $email_address; 	    $email_address = format_email($1, $2, $email_usename);	    if ($email_git_penguin_chiefs) {		push(@email_to, [$email_address, 'chief penguin']);	    } else {		@email_to = grep($_->[0] !~ /${email_address}/, @email_to);	    }	}    }     foreach my $email (@file_emails) {	my ($name, $address) = parse_email($email); 	my $tmp_email = format_email($name, $address, $email_usename);	push_email_address($tmp_email, '');	add_role($tmp_email, 'in file');    }} if ($email || $email_list) {    my @to = ();    if ($email) {	@to = (@to, @email_to);    }    if ($email_list) {	@to = (@to, @list_to);    }    output(merge_email(@to));} if ($scm) {    @scm = uniq(@scm);    output(@scm);} if ($status) {    @status = uniq(@status);    output(@status);} if ($subsystem) {

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