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   1#!/usr/bin/env perl
   2# SPDX-License-Identifier: GPL-2.0
   3#
   4# (c) 2007, Joe Perches <joe@perches.com>
   5#           created from checkpatch.pl
   6#
   7# Print selected MAINTAINERS information for
   8# the files modified in a patch or for a file
   9#
  10# usage: perl scripts/get_maintainer.pl [OPTIONS] <patch>
  11#        perl scripts/get_maintainer.pl [OPTIONS] -f <file>
  12
  13use warnings;
  14use strict;
  15
  16my $P = $0;
  17my $V = '0.26';
  18
  19use Getopt::Long qw(:config no_auto_abbrev);
  20use Cwd;
  21use File::Find;
  22use File::Spec::Functions;
  23use open qw(:std :encoding(UTF-8));
  24
  25my $cur_path = fastgetcwd() . '/';
  26my $lk_path = "./";
  27my $email = 1;
  28my $email_usename = 1;
  29my $email_maintainer = 1;
  30my $email_reviewer = 1;
  31my $email_fixes = 1;
  32my $email_list = 1;
  33my $email_moderated_list = 1;
  34my $email_subscriber_list = 0;
  35my $email_git_penguin_chiefs = 0;
  36my $email_git = 0;
  37my $email_git_all_signature_types = 0;
  38my $email_git_blame = 0;
  39my $email_git_blame_signatures = 1;
  40my $email_git_fallback = 1;
  41my $email_git_min_signatures = 1;
  42my $email_git_max_maintainers = 5;
  43my $email_git_min_percent = 5;
  44my $email_git_since = "1-year-ago";
  45my $email_hg_since = "-365";
  46my $interactive = 0;
  47my $email_remove_duplicates = 1;
  48my $email_use_mailmap = 1;
  49my $output_multiline = 1;
  50my $output_separator = ", ";
  51my $output_roles = 0;
  52my $output_rolestats = 1;
  53my $output_section_maxlen = 50;
  54my $scm = 0;
  55my $tree = 1;
  56my $web = 0;
  57my $subsystem = 0;
  58my $status = 0;
  59my $letters = "";
  60my $keywords = 1;
  61my $keywords_in_file = 0;
  62my $sections = 0;
  63my $email_file_emails = 0;
  64my $from_filename = 0;
  65my $pattern_depth = 0;
  66my $self_test = undef;
  67my $version = 0;
  68my $help = 0;
  69my $find_maintainer_files = 0;
  70my $maintainer_path;
  71my $vcs_used = 0;
  72
  73my $exit = 0;
  74
  75my @files = ();
  76my @fixes = ();			# If a patch description includes Fixes: lines
  77my @range = ();
  78my @keyword_tvi = ();
  79my @file_emails = ();
  80
  81my %commit_author_hash;
  82my %commit_signer_hash;
  83
  84my @penguin_chief = ();
  85push(@penguin_chief, "Linus Torvalds:torvalds\@linux-foundation.org");
  86#Andrew wants in on most everything - 2009/01/14
  87#push(@penguin_chief, "Andrew Morton:akpm\@linux-foundation.org");
  88
  89my @penguin_chief_names = ();
  90foreach my $chief (@penguin_chief) {
  91    if ($chief =~ m/^(.*):(.*)/) {
  92	my $chief_name = $1;
  93	my $chief_addr = $2;
  94	push(@penguin_chief_names, $chief_name);
  95    }
  96}
  97my $penguin_chiefs = "\(" . join("|", @penguin_chief_names) . "\)";
  98
  99# Signature types of people who are either
 100# 	a) responsible for the code in question, or
 101# 	b) familiar enough with it to give relevant feedback
 102my @signature_tags = ();
 103push(@signature_tags, "Signed-off-by:");
 104push(@signature_tags, "Reviewed-by:");
 105push(@signature_tags, "Acked-by:");
 106
 107my $signature_pattern = "\(" . join("|", @signature_tags) . "\)";
 108
 109# rfc822 email address - preloaded methods go here.
 110my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
 111my $rfc822_char = '[\\000-\\377]';
 112
 113# VCS command support: class-like functions and strings
 114
 115my %VCS_cmds;
 116
 117my %VCS_cmds_git = (
 118    "execute_cmd" => \&git_execute_cmd,
 119    "available" => '(which("git") ne "") && (-e ".git")',
 120    "find_signers_cmd" =>
 121	"git log --no-color --follow --since=\$email_git_since " .
 122	    '--numstat --no-merges ' .
 123	    '--format="GitCommit: %H%n' .
 124		      'GitAuthor: %an <%ae>%n' .
 125		      'GitDate: %aD%n' .
 126		      'GitSubject: %s%n' .
 127		      '%b%n"' .
 128	    " -- \$file",
 129    "find_commit_signers_cmd" =>
 130	"git log --no-color " .
 131	    '--numstat ' .
 132	    '--format="GitCommit: %H%n' .
 133		      'GitAuthor: %an <%ae>%n' .
 134		      'GitDate: %aD%n' .
 135		      'GitSubject: %s%n' .
 136		      '%b%n"' .
 137	    " -1 \$commit",
 138    "find_commit_author_cmd" =>
 139	"git log --no-color " .
 140	    '--numstat ' .
 141	    '--format="GitCommit: %H%n' .
 142		      'GitAuthor: %an <%ae>%n' .
 143		      'GitDate: %aD%n' .
 144		      'GitSubject: %s%n"' .
 145	    " -1 \$commit",
 146    "blame_range_cmd" => "git blame -l -L \$diff_start,+\$diff_length \$file",
 147    "blame_file_cmd" => "git blame -l \$file",
 148    "commit_pattern" => "^GitCommit: ([0-9a-f]{40,40})",
 149    "blame_commit_pattern" => "^([0-9a-f]+) ",
 150    "author_pattern" => "^GitAuthor: (.*)",
 151    "subject_pattern" => "^GitSubject: (.*)",
 152    "stat_pattern" => "^(\\d+)\\t(\\d+)\\t\$file\$",
 153    "file_exists_cmd" => "git ls-files \$file",
 154    "list_files_cmd" => "git ls-files \$file",
 155);
 156
 157my %VCS_cmds_hg = (
 158    "execute_cmd" => \&hg_execute_cmd,
 159    "available" => '(which("hg") ne "") && (-d ".hg")',
 160    "find_signers_cmd" =>
 161	"hg log --date=\$email_hg_since " .
 162	    "--template='HgCommit: {node}\\n" .
 163	                "HgAuthor: {author}\\n" .
 164			"HgSubject: {desc}\\n'" .
 165	    " -- \$file",
 166    "find_commit_signers_cmd" =>
 167	"hg log " .
 168	    "--template='HgSubject: {desc}\\n'" .
 169	    " -r \$commit",
 170    "find_commit_author_cmd" =>
 171	"hg log " .
 172	    "--template='HgCommit: {node}\\n" .
 173		        "HgAuthor: {author}\\n" .
 174			"HgSubject: {desc|firstline}\\n'" .
 175	    " -r \$commit",
 176    "blame_range_cmd" => "",		# not supported
 177    "blame_file_cmd" => "hg blame -n \$file",
 178    "commit_pattern" => "^HgCommit: ([0-9a-f]{40,40})",
 179    "blame_commit_pattern" => "^([ 0-9a-f]+):",
 180    "author_pattern" => "^HgAuthor: (.*)",
 181    "subject_pattern" => "^HgSubject: (.*)",
 182    "stat_pattern" => "^(\\d+)\t(\\d+)\t\$file\$",
 183    "file_exists_cmd" => "hg files \$file",
 184    "list_files_cmd" => "hg manifest -R \$file",
 185);
 186
 187my $conf = which_conf(".get_maintainer.conf");
 188if (-f $conf) {
 189    my @conf_args;
 190    open(my $conffile, '<', "$conf")
 191	or warn "$P: Can't find a readable .get_maintainer.conf file $!\n";
 192
 193    while (<$conffile>) {
 194	my $line = $_;
 195
 196	$line =~ s/\s*\n?$//g;
 197	$line =~ s/^\s*//g;
 198	$line =~ s/\s+/ /g;
 199
 200	next if ($line =~ m/^\s*#/);
 201	next if ($line =~ m/^\s*$/);
 202
 203	my @words = split(" ", $line);
 204	foreach my $word (@words) {
 205	    last if ($word =~ m/^#/);
 206	    push (@conf_args, $word);
 207	}
 208    }
 209    close($conffile);
 210    unshift(@ARGV, @conf_args) if @conf_args;
 211}
 212
 213my @ignore_emails = ();
 214my $ignore_file = which_conf(".get_maintainer.ignore");
 215if (-f $ignore_file) {
 216    open(my $ignore, '<', "$ignore_file")
 217	or warn "$P: Can't find a readable .get_maintainer.ignore file $!\n";
 218    while (<$ignore>) {
 219	my $line = $_;
 220
 221	$line =~ s/\s*\n?$//;
 222	$line =~ s/^\s*//;
 223	$line =~ s/\s+$//;
 224	$line =~ s/#.*$//;
 225
 226	next if ($line =~ m/^\s*$/);
 227	if (rfc822_valid($line)) {
 228	    push(@ignore_emails, $line);
 229	}
 230    }
 231    close($ignore);
 232}
 233
 234if ($#ARGV > 0) {
 235    foreach (@ARGV) {
 236        if ($_ =~ /^-{1,2}self-test(?:=|$)/) {
 237            die "$P: using --self-test does not allow any other option or argument\n";
 238        }
 239    }
 240}
 241
 242if (!GetOptions(
 243		'email!' => \$email,
 244		'git!' => \$email_git,
 245		'git-all-signature-types!' => \$email_git_all_signature_types,
 246		'git-blame!' => \$email_git_blame,
 247		'git-blame-signatures!' => \$email_git_blame_signatures,
 248		'git-fallback!' => \$email_git_fallback,
 249		'git-chief-penguins!' => \$email_git_penguin_chiefs,
 250		'git-min-signatures=i' => \$email_git_min_signatures,
 251		'git-max-maintainers=i' => \$email_git_max_maintainers,
 252		'git-min-percent=i' => \$email_git_min_percent,
 253		'git-since=s' => \$email_git_since,
 254		'hg-since=s' => \$email_hg_since,
 255		'i|interactive!' => \$interactive,
 256		'remove-duplicates!' => \$email_remove_duplicates,
 257		'mailmap!' => \$email_use_mailmap,
 258		'm!' => \$email_maintainer,
 259		'r!' => \$email_reviewer,
 260		'n!' => \$email_usename,
 261		'l!' => \$email_list,
 262		'fixes!' => \$email_fixes,
 263		'moderated!' => \$email_moderated_list,
 264		's!' => \$email_subscriber_list,
 265		'multiline!' => \$output_multiline,
 266		'roles!' => \$output_roles,
 267		'rolestats!' => \$output_rolestats,
 268		'separator=s' => \$output_separator,
 269		'subsystem!' => \$subsystem,
 270		'status!' => \$status,
 271		'scm!' => \$scm,
 272		'tree!' => \$tree,
 273		'web!' => \$web,
 274		'letters=s' => \$letters,
 275		'pattern-depth=i' => \$pattern_depth,
 276		'k|keywords!' => \$keywords,
 277		'kf|keywords-in-file!' => \$keywords_in_file,
 278		'sections!' => \$sections,
 279		'fe|file-emails!' => \$email_file_emails,
 280		'f|file' => \$from_filename,
 281		'find-maintainer-files' => \$find_maintainer_files,
 282		'mpath|maintainer-path=s' => \$maintainer_path,
 283		'self-test:s' => \$self_test,
 284		'v|version' => \$version,
 285		'h|help|usage' => \$help,
 286		)) {
 287    die "$P: invalid argument - use --help if necessary\n";
 288}
 289
 290if ($help != 0) {
 291    usage();
 292    exit 0;
 293}
 294
 295if ($version != 0) {
 296    print("${P} ${V}\n");
 297    exit 0;
 298}
 299
 300if (defined $self_test) {
 301    read_all_maintainer_files();
 302    self_test();
 303    exit 0;
 304}
 305
 306if (-t STDIN && !@ARGV) {
 307    # We're talking to a terminal, but have no command line arguments.
 308    die "$P: missing patchfile or -f file - use --help if necessary\n";
 309}
 310
 311$output_multiline = 0 if ($output_separator ne ", ");
 312$output_rolestats = 1 if ($interactive);
 313$output_roles = 1 if ($output_rolestats);
 314
 315if ($sections || $letters ne "") {
 316    $sections = 1;
 317    $email = 0;
 318    $email_list = 0;
 319    $scm = 0;
 320    $status = 0;
 321    $subsystem = 0;
 322    $web = 0;
 323    $keywords = 0;
 324    $keywords_in_file = 0;
 325    $interactive = 0;
 326} else {
 327    my $selections = $email + $scm + $status + $subsystem + $web;
 328    if ($selections == 0) {
 329	die "$P:  Missing required option: email, scm, status, subsystem or web\n";
 330    }
 331}
 332
 333if ($email &&
 334    ($email_maintainer + $email_reviewer +
 335     $email_list + $email_subscriber_list +
 336     $email_git + $email_git_penguin_chiefs + $email_git_blame) == 0) {
 337    die "$P: Please select at least 1 email option\n";
 338}
 339
 340if ($tree && !top_of_kernel_tree($lk_path)) {
 341    die "$P: The current directory does not appear to be "
 342	. "a linux kernel source tree.\n";
 343}
 344
 345## Read MAINTAINERS for type/value pairs
 346
 347my @typevalue = ();
 348my %keyword_hash;
 349my @mfiles = ();
 350my @self_test_info = ();
 351
 352sub read_maintainer_file {
 353    my ($file) = @_;
 354
 355    open (my $maint, '<', "$file")
 356	or die "$P: Can't open MAINTAINERS file '$file': $!\n";
 357    my $i = 1;
 358    while (<$maint>) {
 359	my $line = $_;
 360	chomp $line;
 361
 362	if ($line =~ m/^([A-Z]):\s*(.*)/) {
 363	    my $type = $1;
 364	    my $value = $2;
 365
 366	    ##Filename pattern matching
 367	    if ($type eq "F" || $type eq "X") {
 368		$value =~ s@\.@\\\.@g;       ##Convert . to \.
 369		$value =~ s/\*/\.\*/g;       ##Convert * to .*
 370		$value =~ s/\?/\./g;         ##Convert ? to .
 371		##if pattern is a directory and it lacks a trailing slash, add one
 372		if ((-d $value)) {
 373		    $value =~ s@([^/])$@$1/@;
 374		}
 375	    } elsif ($type eq "K") {
 376		$keyword_hash{@typevalue} = $value;
 377	    }
 378	    push(@typevalue, "$type:$value");
 379	} elsif (!(/^\s*$/ || /^\s*\#/)) {
 380	    push(@typevalue, $line);
 381	}
 382	if (defined $self_test) {
 383	    push(@self_test_info, {file=>$file, linenr=>$i, line=>$line});
 384	}
 385	$i++;
 386    }
 387    close($maint);
 388}
 389
 390sub find_is_maintainer_file {
 391    my ($file) = $_;
 392    return if ($file !~ m@/MAINTAINERS$@);
 393    $file = $File::Find::name;
 394    return if (! -f $file);
 395    push(@mfiles, $file);
 396}
 397
 398sub find_ignore_git {
 399    return grep { $_ !~ /^\.git$/; } @_;
 400}
 401
 402read_all_maintainer_files();
 403
 404sub read_all_maintainer_files {
 405    my $path = "${lk_path}MAINTAINERS";
 406    if (defined $maintainer_path) {
 407	$path = $maintainer_path;
 408	# Perl Cookbook tilde expansion if necessary
 409	$path =~ s@^~([^/]*)@ $1 ? (getpwnam($1))[7] : ( $ENV{HOME} || $ENV{LOGDIR} || (getpwuid($<))[7])@ex;
 410    }
 411
 412    if (-d $path) {
 413	$path .= '/' if ($path !~ m@/$@);
 414	if ($find_maintainer_files) {
 415	    find( { wanted => \&find_is_maintainer_file,
 416		    preprocess => \&find_ignore_git,
 417		    no_chdir => 1,
 418		}, "$path");
 419	} else {
 420	    opendir(DIR, "$path") or die $!;
 421	    my @files = readdir(DIR);
 422	    closedir(DIR);
 423	    foreach my $file (@files) {
 424		push(@mfiles, "$path$file") if ($file !~ /^\./);
 425	    }
 426	}
 427    } elsif (-f "$path") {
 428	push(@mfiles, "$path");
 429    } else {
 430	die "$P: MAINTAINER file not found '$path'\n";
 431    }
 432    die "$P: No MAINTAINER files found in '$path'\n" if (scalar(@mfiles) == 0);
 433    foreach my $file (@mfiles) {
 434	read_maintainer_file("$file");
 435    }
 436}
 437
 438sub maintainers_in_file {
 439    my ($file) = @_;
 440
 441    return if ($file =~ m@\bMAINTAINERS$@);
 442
 443    if (-f $file && ($email_file_emails || $file =~ /\.yaml$/)) {
 444	open(my $f, '<', $file)
 445	    or die "$P: Can't open $file: $!\n";
 446	my $text = do { local($/) ; <$f> };
 447	close($f);
 448
 449	my @poss_addr = $text =~ m$[\p{L}\"\' \,\.\+-]*\s*[\,]*\s*[\(\<\{]{0,1}[A-Za-z0-9_\.\+-]+\@[A-Za-z0-9\.-]+\.[A-Za-z0-9]+[\)\>\}]{0,1}$g;
 450	push(@file_emails, clean_file_emails(@poss_addr));
 451    }
 452}
 453
 454#
 455# Read mail address map
 456#
 457
 458my $mailmap;
 459
 460read_mailmap();
 461
 462sub read_mailmap {
 463    $mailmap = {
 464	names => {},
 465	addresses => {}
 466    };
 467
 468    return if (!$email_use_mailmap || !(-f "${lk_path}.mailmap"));
 469
 470    open(my $mailmap_file, '<', "${lk_path}.mailmap")
 471	or warn "$P: Can't open .mailmap: $!\n";
 472
 473    while (<$mailmap_file>) {
 474	s/#.*$//; #strip comments
 475	s/^\s+|\s+$//g; #trim
 476
 477	next if (/^\s*$/); #skip empty lines
 478	#entries have one of the following formats:
 479	# name1 <mail1>
 480	# <mail1> <mail2>
 481	# name1 <mail1> <mail2>
 482	# name1 <mail1> name2 <mail2>
 483	# (see man git-shortlog)
 484
 485	if (/^([^<]+)<([^>]+)>$/) {
 486	    my $real_name = $1;
 487	    my $address = $2;
 488
 489	    $real_name =~ s/\s+$//;
 490	    ($real_name, $address) = parse_email("$real_name <$address>");
 491	    $mailmap->{names}->{$address} = $real_name;
 492
 493	} elsif (/^<([^>]+)>\s*<([^>]+)>$/) {
 494	    my $real_address = $1;
 495	    my $wrong_address = $2;
 496
 497	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 498
 499	} elsif (/^(.+)<([^>]+)>\s*<([^>]+)>$/) {
 500	    my $real_name = $1;
 501	    my $real_address = $2;
 502	    my $wrong_address = $3;
 503
 504	    $real_name =~ s/\s+$//;
 505	    ($real_name, $real_address) =
 506		parse_email("$real_name <$real_address>");
 507	    $mailmap->{names}->{$wrong_address} = $real_name;
 508	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 509
 510	} elsif (/^(.+)<([^>]+)>\s*(.+)\s*<([^>]+)>$/) {
 511	    my $real_name = $1;
 512	    my $real_address = $2;
 513	    my $wrong_name = $3;
 514	    my $wrong_address = $4;
 515
 516	    $real_name =~ s/\s+$//;
 517	    ($real_name, $real_address) =
 518		parse_email("$real_name <$real_address>");
 519
 520	    $wrong_name =~ s/\s+$//;
 521	    ($wrong_name, $wrong_address) =
 522		parse_email("$wrong_name <$wrong_address>");
 523
 524	    my $wrong_email = format_email($wrong_name, $wrong_address, 1);
 525	    $mailmap->{names}->{$wrong_email} = $real_name;
 526	    $mailmap->{addresses}->{$wrong_email} = $real_address;
 527	}
 528    }
 529    close($mailmap_file);
 530}
 531
 532## use the filenames on the command line or find the filenames in the patchfiles
 533
 534if (!@ARGV) {
 535    push(@ARGV, "&STDIN");
 536}
 537
 538foreach my $file (@ARGV) {
 539    if ($file ne "&STDIN") {
 540	$file = canonpath($file);
 541	##if $file is a directory and it lacks a trailing slash, add one
 542	if ((-d $file)) {
 543	    $file =~ s@([^/])$@$1/@;
 544	} elsif (!(-f $file)) {
 545	    die "$P: file '${file}' not found\n";
 546	}
 547    }
 548    if ($from_filename && (vcs_exists() && !vcs_file_exists($file))) {
 549	warn "$P: file '$file' not found in version control $!\n";
 550    }
 551    if ($from_filename || ($file ne "&STDIN" && vcs_file_exists($file))) {
 552	$file =~ s/^\Q${cur_path}\E//;	#strip any absolute path
 553	$file =~ s/^\Q${lk_path}\E//;	#or the path to the lk tree
 554	push(@files, $file);
 555	if ($file ne "MAINTAINERS" && -f $file && $keywords && $keywords_in_file) {
 556	    open(my $f, '<', $file)
 557		or die "$P: Can't open $file: $!\n";
 558	    my $text = do { local($/) ; <$f> };
 559	    close($f);
 560	    foreach my $line (keys %keyword_hash) {
 561		if ($text =~ m/$keyword_hash{$line}/x) {
 562		    push(@keyword_tvi, $line);
 
 
 563		}
 564	    }
 565	}
 566    } else {
 567	my $file_cnt = @files;
 568	my $lastfile;
 569
 570	open(my $patch, "< $file")
 571	    or die "$P: Can't open $file: $!\n";
 572
 573	# We can check arbitrary information before the patch
 574	# like the commit message, mail headers, etc...
 575	# This allows us to match arbitrary keywords against any part
 576	# of a git format-patch generated file (subject tags, etc...)
 577
 578	my $patch_prefix = "";			#Parsing the intro
 579
 580	while (<$patch>) {
 581	    my $patch_line = $_;
 582	    if (m/^ mode change [0-7]+ => [0-7]+ (\S+)\s*$/) {
 583		my $filename = $1;
 584		push(@files, $filename);
 585	    } elsif (m/^rename (?:from|to) (\S+)\s*$/) {
 586		my $filename = $1;
 587		push(@files, $filename);
 588	    } elsif (m/^diff --git a\/(\S+) b\/(\S+)\s*$/) {
 589		my $filename1 = $1;
 590		my $filename2 = $2;
 591		push(@files, $filename1);
 592		push(@files, $filename2);
 593	    } elsif (m/^Fixes:\s+([0-9a-fA-F]{6,40})/) {
 594		push(@fixes, $1) if ($email_fixes);
 595	    } elsif (m/^\+\+\+\s+(\S+)/ or m/^---\s+(\S+)/) {
 596		my $filename = $1;
 597		$filename =~ s@^[^/]*/@@;
 598		$filename =~ s@\n@@;
 599		$lastfile = $filename;
 600		push(@files, $filename);
 601		$patch_prefix = "^[+-].*";	#Now parsing the actual patch
 602	    } elsif (m/^\@\@ -(\d+),(\d+)/) {
 603		if ($email_git_blame) {
 604		    push(@range, "$lastfile:$1:$2");
 605		}
 606	    } elsif ($keywords) {
 607		foreach my $line (keys %keyword_hash) {
 608		    if ($patch_line =~ m/${patch_prefix}$keyword_hash{$line}/x) {
 609			push(@keyword_tvi, $line);
 610		    }
 611		}
 612	    }
 613	}
 614	close($patch);
 615
 616	if ($file_cnt == @files) {
 617	    warn "$P: file '${file}' doesn't appear to be a patch.  "
 618		. "Add -f to options?\n";
 619	}
 620	@files = sort_and_uniq(@files);
 621    }
 622}
 623
 624@file_emails = uniq(@file_emails);
 625@fixes = uniq(@fixes);
 626
 627my %email_hash_name;
 628my %email_hash_address;
 629my @email_to = ();
 630my %hash_list_to;
 631my @list_to = ();
 632my @scm = ();
 633my @web = ();
 634my @subsystem = ();
 635my @status = ();
 636my %deduplicate_name_hash = ();
 637my %deduplicate_address_hash = ();
 638
 639my @maintainers = get_maintainers();
 640if (@maintainers) {
 641    @maintainers = merge_email(@maintainers);
 642    output(@maintainers);
 643}
 644
 645if ($scm) {
 646    @scm = uniq(@scm);
 647    output(@scm);
 648}
 649
 650if ($status) {
 651    @status = uniq(@status);
 652    output(@status);
 653}
 654
 655if ($subsystem) {
 656    @subsystem = uniq(@subsystem);
 657    output(@subsystem);
 658}
 659
 660if ($web) {
 661    @web = uniq(@web);
 662    output(@web);
 663}
 664
 665exit($exit);
 666
 667sub self_test {
 668    my @lsfiles = ();
 669    my @good_links = ();
 670    my @bad_links = ();
 671    my @section_headers = ();
 672    my $index = 0;
 673
 674    @lsfiles = vcs_list_files($lk_path);
 675
 676    for my $x (@self_test_info) {
 677	$index++;
 678
 679	## Section header duplication and missing section content
 680	if (($self_test eq "" || $self_test =~ /\bsections\b/) &&
 681	    $x->{line} =~ /^\S[^:]/ &&
 682	    defined $self_test_info[$index] &&
 683	    $self_test_info[$index]->{line} =~ /^([A-Z]):\s*\S/) {
 684	    my $has_S = 0;
 685	    my $has_F = 0;
 686	    my $has_ML = 0;
 687	    my $status = "";
 688	    if (grep(m@^\Q$x->{line}\E@, @section_headers)) {
 689		print("$x->{file}:$x->{linenr}: warning: duplicate section header\t$x->{line}\n");
 690	    } else {
 691		push(@section_headers, $x->{line});
 692	    }
 693	    my $nextline = $index;
 694	    while (defined $self_test_info[$nextline] &&
 695		   $self_test_info[$nextline]->{line} =~ /^([A-Z]):\s*(\S.*)/) {
 696		my $type = $1;
 697		my $value = $2;
 698		if ($type eq "S") {
 699		    $has_S = 1;
 700		    $status = $value;
 701		} elsif ($type eq "F" || $type eq "N") {
 702		    $has_F = 1;
 703		} elsif ($type eq "M" || $type eq "R" || $type eq "L") {
 704		    $has_ML = 1;
 705		}
 706		$nextline++;
 707	    }
 708	    if (!$has_ML && $status !~ /orphan|obsolete/i) {
 709		print("$x->{file}:$x->{linenr}: warning: section without email address\t$x->{line}\n");
 710	    }
 711	    if (!$has_S) {
 712		print("$x->{file}:$x->{linenr}: warning: section without status \t$x->{line}\n");
 713	    }
 714	    if (!$has_F) {
 715		print("$x->{file}:$x->{linenr}: warning: section without file pattern\t$x->{line}\n");
 716	    }
 717	}
 718
 719	next if ($x->{line} !~ /^([A-Z]):\s*(.*)/);
 720
 721	my $type = $1;
 722	my $value = $2;
 723
 724	## Filename pattern matching
 725	if (($type eq "F" || $type eq "X") &&
 726	    ($self_test eq "" || $self_test =~ /\bpatterns\b/)) {
 727	    $value =~ s@\.@\\\.@g;       ##Convert . to \.
 728	    $value =~ s/\*/\.\*/g;       ##Convert * to .*
 729	    $value =~ s/\?/\./g;         ##Convert ? to .
 730	    ##if pattern is a directory and it lacks a trailing slash, add one
 731	    if ((-d $value)) {
 732		$value =~ s@([^/])$@$1/@;
 733	    }
 734	    if (!grep(m@^$value@, @lsfiles)) {
 735		print("$x->{file}:$x->{linenr}: warning: no file matches\t$x->{line}\n");
 736	    }
 737
 738	## Link reachability
 739	} elsif (($type eq "W" || $type eq "Q" || $type eq "B") &&
 740		 $value =~ /^https?:/ &&
 741		 ($self_test eq "" || $self_test =~ /\blinks\b/)) {
 742	    next if (grep(m@^\Q$value\E$@, @good_links));
 743	    my $isbad = 0;
 744	    if (grep(m@^\Q$value\E$@, @bad_links)) {
 745	        $isbad = 1;
 746	    } else {
 747		my $output = `wget --spider -q --no-check-certificate --timeout 10 --tries 1 $value`;
 748		if ($? == 0) {
 749		    push(@good_links, $value);
 750		} else {
 751		    push(@bad_links, $value);
 752		    $isbad = 1;
 753		}
 754	    }
 755	    if ($isbad) {
 756	        print("$x->{file}:$x->{linenr}: warning: possible bad link\t$x->{line}\n");
 757	    }
 758
 759	## SCM reachability
 760	} elsif ($type eq "T" &&
 761		 ($self_test eq "" || $self_test =~ /\bscm\b/)) {
 762	    next if (grep(m@^\Q$value\E$@, @good_links));
 763	    my $isbad = 0;
 764	    if (grep(m@^\Q$value\E$@, @bad_links)) {
 765	        $isbad = 1;
 766            } elsif ($value !~ /^(?:git|quilt|hg)\s+\S/) {
 767		print("$x->{file}:$x->{linenr}: warning: malformed entry\t$x->{line}\n");
 768	    } elsif ($value =~ /^git\s+(\S+)(\s+([^\(]+\S+))?/) {
 769		my $url = $1;
 770		my $branch = "";
 771		$branch = $3 if $3;
 772		my $output = `git ls-remote --exit-code -h "$url" $branch > /dev/null 2>&1`;
 773		if ($? == 0) {
 774		    push(@good_links, $value);
 775		} else {
 776		    push(@bad_links, $value);
 777		    $isbad = 1;
 778		}
 779	    } elsif ($value =~ /^(?:quilt|hg)\s+(https?:\S+)/) {
 780		my $url = $1;
 781		my $output = `wget --spider -q --no-check-certificate --timeout 10 --tries 1 $url`;
 782		if ($? == 0) {
 783		    push(@good_links, $value);
 784		} else {
 785		    push(@bad_links, $value);
 786		    $isbad = 1;
 787		}
 788	    }
 789	    if ($isbad) {
 790		print("$x->{file}:$x->{linenr}: warning: possible bad link\t$x->{line}\n");
 791	    }
 792	}
 793    }
 794}
 795
 796sub ignore_email_address {
 797    my ($address) = @_;
 798
 799    foreach my $ignore (@ignore_emails) {
 800	return 1 if ($ignore eq $address);
 801    }
 802
 803    return 0;
 804}
 805
 806sub range_is_maintained {
 807    my ($start, $end) = @_;
 808
 809    for (my $i = $start; $i < $end; $i++) {
 810	my $line = $typevalue[$i];
 811	if ($line =~ m/^([A-Z]):\s*(.*)/) {
 812	    my $type = $1;
 813	    my $value = $2;
 814	    if ($type eq 'S') {
 815		if ($value =~ /(maintain|support)/i) {
 816		    return 1;
 817		}
 818	    }
 819	}
 820    }
 821    return 0;
 822}
 823
 824sub range_has_maintainer {
 825    my ($start, $end) = @_;
 826
 827    for (my $i = $start; $i < $end; $i++) {
 828	my $line = $typevalue[$i];
 829	if ($line =~ m/^([A-Z]):\s*(.*)/) {
 830	    my $type = $1;
 831	    my $value = $2;
 832	    if ($type eq 'M') {
 833		return 1;
 834	    }
 835	}
 836    }
 837    return 0;
 838}
 839
 840sub get_maintainers {
 841    %email_hash_name = ();
 842    %email_hash_address = ();
 843    %commit_author_hash = ();
 844    %commit_signer_hash = ();
 845    @email_to = ();
 846    %hash_list_to = ();
 847    @list_to = ();
 848    @scm = ();
 849    @web = ();
 850    @subsystem = ();
 851    @status = ();
 852    %deduplicate_name_hash = ();
 853    %deduplicate_address_hash = ();
 854    if ($email_git_all_signature_types) {
 855	$signature_pattern = "(.+?)[Bb][Yy]:";
 856    } else {
 857	$signature_pattern = "\(" . join("|", @signature_tags) . "\)";
 858    }
 859
 860    # Find responsible parties
 861
 862    my %exact_pattern_match_hash = ();
 863
 864    foreach my $file (@files) {
 865
 866	my %hash;
 867	my $tvi = find_first_section();
 868	while ($tvi < @typevalue) {
 869	    my $start = find_starting_index($tvi);
 870	    my $end = find_ending_index($tvi);
 871	    my $exclude = 0;
 872	    my $i;
 873
 874	    #Do not match excluded file patterns
 875
 876	    for ($i = $start; $i < $end; $i++) {
 877		my $line = $typevalue[$i];
 878		if ($line =~ m/^([A-Z]):\s*(.*)/) {
 879		    my $type = $1;
 880		    my $value = $2;
 881		    if ($type eq 'X') {
 882			if (file_match_pattern($file, $value)) {
 883			    $exclude = 1;
 884			    last;
 885			}
 886		    }
 887		}
 888	    }
 889
 890	    if (!$exclude) {
 891		for ($i = $start; $i < $end; $i++) {
 892		    my $line = $typevalue[$i];
 893		    if ($line =~ m/^([A-Z]):\s*(.*)/) {
 894			my $type = $1;
 895			my $value = $2;
 896			if ($type eq 'F') {
 897			    if (file_match_pattern($file, $value)) {
 898				my $value_pd = ($value =~ tr@/@@);
 899				my $file_pd = ($file  =~ tr@/@@);
 900				$value_pd++ if (substr($value,-1,1) ne "/");
 901				$value_pd = -1 if ($value =~ /^\.\*/);
 902				if ($value_pd >= $file_pd &&
 903				    range_is_maintained($start, $end) &&
 904				    range_has_maintainer($start, $end)) {
 905				    $exact_pattern_match_hash{$file} = 1;
 906				}
 907				if ($pattern_depth == 0 ||
 908				    (($file_pd - $value_pd) < $pattern_depth)) {
 909				    $hash{$tvi} = $value_pd;
 910				}
 911			    }
 912			} elsif ($type eq 'N') {
 913			    if ($file =~ m/$value/x) {
 914				$hash{$tvi} = 0;
 915			    }
 916			}
 917		    }
 918		}
 919	    }
 920	    $tvi = $end + 1;
 921	}
 922
 923	foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
 924	    add_categories($line, "");
 925	    if ($sections) {
 926		my $i;
 927		my $start = find_starting_index($line);
 928		my $end = find_ending_index($line);
 929		for ($i = $start; $i < $end; $i++) {
 930		    my $line = $typevalue[$i];
 931		    if ($line =~ /^[FX]:/) {		##Restore file patterns
 932			$line =~ s/([^\\])\.([^\*])/$1\?$2/g;
 933			$line =~ s/([^\\])\.$/$1\?/g;	##Convert . back to ?
 934			$line =~ s/\\\./\./g;       	##Convert \. to .
 935			$line =~ s/\.\*/\*/g;       	##Convert .* to *
 936		    }
 937		    my $count = $line =~ s/^([A-Z]):/$1:\t/g;
 938		    if ($letters eq "" || (!$count || $letters =~ /$1/i)) {
 939			print("$line\n");
 940		    }
 941		}
 942		print("\n");
 943	    }
 944	}
 945
 946	maintainers_in_file($file);
 947    }
 948
 949    if ($keywords) {
 950	@keyword_tvi = sort_and_uniq(@keyword_tvi);
 951	foreach my $line (@keyword_tvi) {
 952	    add_categories($line, ":Keyword:$keyword_hash{$line}");
 953	}
 954    }
 955
 956    foreach my $email (@email_to, @list_to) {
 957	$email->[0] = deduplicate_email($email->[0]);
 958    }
 959
 960    foreach my $file (@files) {
 961	if ($email &&
 962	    ($email_git ||
 963	     ($email_git_fallback &&
 964	      $file !~ /MAINTAINERS$/ &&
 965	      !$exact_pattern_match_hash{$file}))) {
 966	    vcs_file_signoffs($file);
 967	}
 968	if ($email && $email_git_blame) {
 969	    vcs_file_blame($file);
 970	}
 971    }
 972
 973    if ($email) {
 974	foreach my $chief (@penguin_chief) {
 975	    if ($chief =~ m/^(.*):(.*)/) {
 976		my $email_address;
 977
 978		$email_address = format_email($1, $2, $email_usename);
 979		if ($email_git_penguin_chiefs) {
 980		    push(@email_to, [$email_address, 'chief penguin']);
 981		} else {
 982		    @email_to = grep($_->[0] !~ /${email_address}/, @email_to);
 983		}
 984	    }
 985	}
 986
 987	foreach my $email (@file_emails) {
 988	    $email = mailmap_email($email);
 989	    my ($name, $address) = parse_email($email);
 990
 991	    my $tmp_email = format_email($name, $address, $email_usename);
 992	    push_email_address($tmp_email, '');
 993	    add_role($tmp_email, 'in file');
 994	}
 995    }
 996
 997    foreach my $fix (@fixes) {
 998	vcs_add_commit_signers($fix, "blamed_fixes");
 999    }
1000
1001    my @to = ();
1002    if ($email || $email_list) {
1003	if ($email) {
1004	    @to = (@to, @email_to);
1005	}
1006	if ($email_list) {
1007	    @to = (@to, @list_to);
1008	}
1009    }
1010
1011    if ($interactive) {
1012	@to = interactive_get_maintainers(\@to);
1013    }
1014
1015    return @to;
1016}
1017
1018sub file_match_pattern {
1019    my ($file, $pattern) = @_;
1020    if (substr($pattern, -1) eq "/") {
1021	if ($file =~ m@^$pattern@) {
1022	    return 1;
1023	}
1024    } else {
1025	if ($file =~ m@^$pattern@) {
1026	    my $s1 = ($file =~ tr@/@@);
1027	    my $s2 = ($pattern =~ tr@/@@);
1028	    if ($s1 == $s2) {
1029		return 1;
1030	    }
1031	}
1032    }
1033    return 0;
1034}
1035
1036sub usage {
1037    print <<EOT;
1038usage: $P [options] patchfile
1039       $P [options] -f file|directory
1040version: $V
1041
1042MAINTAINER field selection options:
1043  --email => print email address(es) if any
1044    --git => include recent git \*-by: signers
1045    --git-all-signature-types => include signers regardless of signature type
1046        or use only ${signature_pattern} signers (default: $email_git_all_signature_types)
1047    --git-fallback => use git when no exact MAINTAINERS pattern (default: $email_git_fallback)
1048    --git-chief-penguins => include ${penguin_chiefs}
1049    --git-min-signatures => number of signatures required (default: $email_git_min_signatures)
1050    --git-max-maintainers => maximum maintainers to add (default: $email_git_max_maintainers)
1051    --git-min-percent => minimum percentage of commits required (default: $email_git_min_percent)
1052    --git-blame => use git blame to find modified commits for patch or file
1053    --git-blame-signatures => when used with --git-blame, also include all commit signers
1054    --git-since => git history to use (default: $email_git_since)
1055    --hg-since => hg history to use (default: $email_hg_since)
1056    --interactive => display a menu (mostly useful if used with the --git option)
1057    --m => include maintainer(s) if any
1058    --r => include reviewer(s) if any
1059    --n => include name 'Full Name <addr\@domain.tld>'
1060    --l => include list(s) if any
1061    --moderated => include moderated lists(s) if any (default: true)
1062    --s => include subscriber only list(s) if any (default: false)
1063    --remove-duplicates => minimize duplicate email names/addresses
1064    --roles => show roles (status:subsystem, git-signer, list, etc...)
1065    --rolestats => show roles and statistics (commits/total_commits, %)
1066    --file-emails => add email addresses found in -f file (default: 0 (off))
1067    --fixes => for patches, add signatures of commits with 'Fixes: <commit>' (default: 1 (on))
1068  --scm => print SCM tree(s) if any
1069  --status => print status if any
1070  --subsystem => print subsystem name if any
1071  --web => print website(s) if any
1072
1073Output type options:
1074  --separator [, ] => separator for multiple entries on 1 line
1075    using --separator also sets --nomultiline if --separator is not [, ]
1076  --multiline => print 1 entry per line
1077
1078Other options:
1079  --pattern-depth => Number of pattern directory traversals (default: 0 (all))
1080  --keywords => scan patch for keywords (default: $keywords)
1081  --keywords-in-file => scan file for keywords (default: $keywords_in_file)
1082  --sections => print all of the subsystem sections with pattern matches
1083  --letters => print all matching 'letter' types from all matching sections
1084  --mailmap => use .mailmap file (default: $email_use_mailmap)
1085  --no-tree => run without a kernel tree
1086  --self-test => show potential issues with MAINTAINERS file content
1087  --version => show version
1088  --help => show this help information
1089
1090Default options:
1091  [--email --tree --nogit --git-fallback --m --r --n --l --multiline
1092   --pattern-depth=0 --remove-duplicates --rolestats --keywords]
1093
1094Notes:
1095  Using "-f directory" may give unexpected results:
1096      Used with "--git", git signators for _all_ files in and below
1097          directory are examined as git recurses directories.
1098          Any specified X: (exclude) pattern matches are _not_ ignored.
1099      Used with "--nogit", directory is used as a pattern match,
1100          no individual file within the directory or subdirectory
1101          is matched.
1102      Used with "--git-blame", does not iterate all files in directory
1103  Using "--git-blame" is slow and may add old committers and authors
1104      that are no longer active maintainers to the output.
1105  Using "--roles" or "--rolestats" with git send-email --cc-cmd or any
1106      other automated tools that expect only ["name"] <email address>
1107      may not work because of additional output after <email address>.
1108  Using "--rolestats" and "--git-blame" shows the #/total=% commits,
1109      not the percentage of the entire file authored.  # of commits is
1110      not a good measure of amount of code authored.  1 major commit may
1111      contain a thousand lines, 5 trivial commits may modify a single line.
1112  If git is not installed, but mercurial (hg) is installed and an .hg
1113      repository exists, the following options apply to mercurial:
1114          --git,
1115          --git-min-signatures, --git-max-maintainers, --git-min-percent, and
1116          --git-blame
1117      Use --hg-since not --git-since to control date selection
1118  File ".get_maintainer.conf", if it exists in the linux kernel source root
1119      directory, can change whatever get_maintainer defaults are desired.
1120      Entries in this file can be any command line argument.
1121      This file is prepended to any additional command line arguments.
1122      Multiple lines and # comments are allowed.
1123  Most options have both positive and negative forms.
1124      The negative forms for --<foo> are --no<foo> and --no-<foo>.
1125
1126EOT
1127}
1128
1129sub top_of_kernel_tree {
1130    my ($lk_path) = @_;
1131
1132    if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
1133	$lk_path .= "/";
1134    }
1135    if (   (-f "${lk_path}COPYING")
1136	&& (-f "${lk_path}CREDITS")
1137	&& (-f "${lk_path}Kbuild")
1138	&& (-e "${lk_path}MAINTAINERS")
1139	&& (-f "${lk_path}Makefile")
1140	&& (-f "${lk_path}README")
1141	&& (-d "${lk_path}Documentation")
1142	&& (-d "${lk_path}arch")
1143	&& (-d "${lk_path}include")
1144	&& (-d "${lk_path}drivers")
1145	&& (-d "${lk_path}fs")
1146	&& (-d "${lk_path}init")
1147	&& (-d "${lk_path}ipc")
1148	&& (-d "${lk_path}kernel")
1149	&& (-d "${lk_path}lib")
1150	&& (-d "${lk_path}scripts")) {
1151	return 1;
1152    }
1153    return 0;
1154}
1155
1156sub escape_name {
1157    my ($name) = @_;
1158
1159    if ($name =~ /[^\w \-]/ai) {  	 ##has "must quote" chars
1160	$name =~ s/(?<!\\)"/\\"/g;       ##escape quotes
1161	$name = "\"$name\"";
1162    }
1163
1164    return $name;
1165}
1166
1167sub parse_email {
1168    my ($formatted_email) = @_;
1169
1170    my $name = "";
1171    my $address = "";
1172
1173    if ($formatted_email =~ /^([^<]+)<(.+\@.*)>.*$/) {
1174	$name = $1;
1175	$address = $2;
1176    } elsif ($formatted_email =~ /^\s*<(.+\@\S*)>.*$/) {
1177	$address = $1;
1178    } elsif ($formatted_email =~ /^(.+\@\S*).*$/) {
1179	$address = $1;
1180    }
1181
1182    $name =~ s/^\s+|\s+$//g;
1183    $name =~ s/^\"|\"$//g;
1184    $name = escape_name($name);
1185    $address =~ s/^\s+|\s+$//g;
1186
 
 
 
 
 
1187    return ($name, $address);
1188}
1189
1190sub format_email {
1191    my ($name, $address, $usename) = @_;
1192
1193    my $formatted_email;
1194
1195    $name =~ s/^\s+|\s+$//g;
1196    $name =~ s/^\"|\"$//g;
1197    $name = escape_name($name);
1198    $address =~ s/^\s+|\s+$//g;
1199
 
 
 
 
 
1200    if ($usename) {
1201	if ("$name" eq "") {
1202	    $formatted_email = "$address";
1203	} else {
1204	    $formatted_email = "$name <$address>";
1205	}
1206    } else {
1207	$formatted_email = $address;
1208    }
1209
1210    return $formatted_email;
1211}
1212
1213sub find_first_section {
1214    my $index = 0;
1215
1216    while ($index < @typevalue) {
1217	my $tv = $typevalue[$index];
1218	if (($tv =~ m/^([A-Z]):\s*(.*)/)) {
1219	    last;
1220	}
1221	$index++;
1222    }
1223
1224    return $index;
1225}
1226
1227sub find_starting_index {
1228    my ($index) = @_;
1229
1230    while ($index > 0) {
1231	my $tv = $typevalue[$index];
1232	if (!($tv =~ m/^([A-Z]):\s*(.*)/)) {
1233	    last;
1234	}
1235	$index--;
1236    }
1237
1238    return $index;
1239}
1240
1241sub find_ending_index {
1242    my ($index) = @_;
1243
1244    while ($index < @typevalue) {
1245	my $tv = $typevalue[$index];
1246	if (!($tv =~ m/^([A-Z]):\s*(.*)/)) {
1247	    last;
1248	}
1249	$index++;
1250    }
1251
1252    return $index;
1253}
1254
1255sub get_subsystem_name {
1256    my ($index) = @_;
1257
1258    my $start = find_starting_index($index);
1259
1260    my $subsystem = $typevalue[$start];
1261    if ($output_section_maxlen && length($subsystem) > $output_section_maxlen) {
1262	$subsystem = substr($subsystem, 0, $output_section_maxlen - 3);
1263	$subsystem =~ s/\s*$//;
1264	$subsystem = $subsystem . "...";
1265    }
1266    return $subsystem;
1267}
1268
1269sub get_maintainer_role {
1270    my ($index) = @_;
1271
1272    my $i;
1273    my $start = find_starting_index($index);
1274    my $end = find_ending_index($index);
1275
1276    my $role = "unknown";
1277    my $subsystem = get_subsystem_name($index);
1278
1279    for ($i = $start + 1; $i < $end; $i++) {
1280	my $tv = $typevalue[$i];
1281	if ($tv =~ m/^([A-Z]):\s*(.*)/) {
1282	    my $ptype = $1;
1283	    my $pvalue = $2;
1284	    if ($ptype eq "S") {
1285		$role = $pvalue;
1286	    }
1287	}
1288    }
1289
1290    $role = lc($role);
1291    if      ($role eq "supported") {
1292	$role = "supporter";
1293    } elsif ($role eq "maintained") {
1294	$role = "maintainer";
1295    } elsif ($role eq "odd fixes") {
1296	$role = "odd fixer";
1297    } elsif ($role eq "orphan") {
1298	$role = "orphan minder";
1299    } elsif ($role eq "obsolete") {
1300	$role = "obsolete minder";
1301    } elsif ($role eq "buried alive in reporters") {
1302	$role = "chief penguin";
1303    }
1304
1305    return $role . ":" . $subsystem;
1306}
1307
1308sub get_list_role {
1309    my ($index) = @_;
1310
1311    my $subsystem = get_subsystem_name($index);
1312
1313    if ($subsystem eq "THE REST") {
1314	$subsystem = "";
1315    }
1316
1317    return $subsystem;
1318}
1319
1320sub add_categories {
1321    my ($index, $suffix) = @_;
1322
1323    my $i;
1324    my $start = find_starting_index($index);
1325    my $end = find_ending_index($index);
1326
1327    push(@subsystem, $typevalue[$start]);
1328
1329    for ($i = $start + 1; $i < $end; $i++) {
1330	my $tv = $typevalue[$i];
1331	if ($tv =~ m/^([A-Z]):\s*(.*)/) {
1332	    my $ptype = $1;
1333	    my $pvalue = $2;
1334	    if ($ptype eq "L") {
1335		my $list_address = $pvalue;
1336		my $list_additional = "";
1337		my $list_role = get_list_role($i);
1338
1339		if ($list_role ne "") {
1340		    $list_role = ":" . $list_role;
1341		}
1342		if ($list_address =~ m/([^\s]+)\s+(.*)$/) {
1343		    $list_address = $1;
1344		    $list_additional = $2;
1345		}
1346		if ($list_additional =~ m/subscribers-only/) {
1347		    if ($email_subscriber_list) {
1348			if (!$hash_list_to{lc($list_address)}) {
1349			    $hash_list_to{lc($list_address)} = 1;
1350			    push(@list_to, [$list_address,
1351					    "subscriber list${list_role}" . $suffix]);
1352			}
1353		    }
1354		} else {
1355		    if ($email_list) {
1356			if (!$hash_list_to{lc($list_address)}) {
1357			    if ($list_additional =~ m/moderated/) {
1358				if ($email_moderated_list) {
1359				    $hash_list_to{lc($list_address)} = 1;
1360				    push(@list_to, [$list_address,
1361						    "moderated list${list_role}" . $suffix]);
1362				}
1363			    } else {
1364				$hash_list_to{lc($list_address)} = 1;
1365				push(@list_to, [$list_address,
1366						"open list${list_role}" . $suffix]);
1367			    }
1368			}
1369		    }
1370		}
1371	    } elsif ($ptype eq "M") {
1372		if ($email_maintainer) {
1373		    my $role = get_maintainer_role($i);
1374		    push_email_addresses($pvalue, $role . $suffix);
1375		}
1376	    } elsif ($ptype eq "R") {
1377		if ($email_reviewer) {
1378		    my $subsystem = get_subsystem_name($i);
1379		    push_email_addresses($pvalue, "reviewer:$subsystem" . $suffix);
1380		}
1381	    } elsif ($ptype eq "T") {
1382		push(@scm, $pvalue . $suffix);
1383	    } elsif ($ptype eq "W") {
1384		push(@web, $pvalue . $suffix);
1385	    } elsif ($ptype eq "S") {
1386		push(@status, $pvalue . $suffix);
1387	    }
1388	}
1389    }
1390}
1391
1392sub email_inuse {
1393    my ($name, $address) = @_;
1394
1395    return 1 if (($name eq "") && ($address eq ""));
1396    return 1 if (($name ne "") && exists($email_hash_name{lc($name)}));
1397    return 1 if (($address ne "") && exists($email_hash_address{lc($address)}));
1398
1399    return 0;
1400}
1401
1402sub push_email_address {
1403    my ($line, $role) = @_;
1404
1405    my ($name, $address) = parse_email($line);
1406
1407    if ($address eq "") {
1408	return 0;
1409    }
1410
1411    if (!$email_remove_duplicates) {
1412	push(@email_to, [format_email($name, $address, $email_usename), $role]);
1413    } elsif (!email_inuse($name, $address)) {
1414	push(@email_to, [format_email($name, $address, $email_usename), $role]);
1415	$email_hash_name{lc($name)}++ if ($name ne "");
1416	$email_hash_address{lc($address)}++;
1417    }
1418
1419    return 1;
1420}
1421
1422sub push_email_addresses {
1423    my ($address, $role) = @_;
1424
1425    my @address_list = ();
1426
1427    if (rfc822_valid($address)) {
1428	push_email_address($address, $role);
1429    } elsif (@address_list = rfc822_validlist($address)) {
1430	my $array_count = shift(@address_list);
1431	while (my $entry = shift(@address_list)) {
1432	    push_email_address($entry, $role);
1433	}
1434    } else {
1435	if (!push_email_address($address, $role)) {
1436	    warn("Invalid MAINTAINERS address: '" . $address . "'\n");
1437	}
1438    }
1439}
1440
1441sub add_role {
1442    my ($line, $role) = @_;
1443
1444    my ($name, $address) = parse_email($line);
1445    my $email = format_email($name, $address, $email_usename);
1446
1447    foreach my $entry (@email_to) {
1448	if ($email_remove_duplicates) {
1449	    my ($entry_name, $entry_address) = parse_email($entry->[0]);
1450	    if (($name eq $entry_name || $address eq $entry_address)
1451		&& ($role eq "" || !($entry->[1] =~ m/$role/))
1452	    ) {
1453		if ($entry->[1] eq "") {
1454		    $entry->[1] = "$role";
1455		} else {
1456		    $entry->[1] = "$entry->[1],$role";
1457		}
1458	    }
1459	} else {
1460	    if ($email eq $entry->[0]
1461		&& ($role eq "" || !($entry->[1] =~ m/$role/))
1462	    ) {
1463		if ($entry->[1] eq "") {
1464		    $entry->[1] = "$role";
1465		} else {
1466		    $entry->[1] = "$entry->[1],$role";
1467		}
1468	    }
1469	}
1470    }
1471}
1472
1473sub which {
1474    my ($bin) = @_;
1475
1476    foreach my $path (split(/:/, $ENV{PATH})) {
1477	if (-e "$path/$bin") {
1478	    return "$path/$bin";
1479	}
1480    }
1481
1482    return "";
1483}
1484
1485sub which_conf {
1486    my ($conf) = @_;
1487
1488    foreach my $path (split(/:/, ".:$ENV{HOME}:.scripts")) {
1489	if (-e "$path/$conf") {
1490	    return "$path/$conf";
1491	}
1492    }
1493
1494    return "";
1495}
1496
1497sub mailmap_email {
1498    my ($line) = @_;
1499
1500    my ($name, $address) = parse_email($line);
1501    my $email = format_email($name, $address, 1);
1502    my $real_name = $name;
1503    my $real_address = $address;
1504
1505    if (exists $mailmap->{names}->{$email} ||
1506	exists $mailmap->{addresses}->{$email}) {
1507	if (exists $mailmap->{names}->{$email}) {
1508	    $real_name = $mailmap->{names}->{$email};
1509	}
1510	if (exists $mailmap->{addresses}->{$email}) {
1511	    $real_address = $mailmap->{addresses}->{$email};
1512	}
1513    } else {
1514	if (exists $mailmap->{names}->{$address}) {
1515	    $real_name = $mailmap->{names}->{$address};
1516	}
1517	if (exists $mailmap->{addresses}->{$address}) {
1518	    $real_address = $mailmap->{addresses}->{$address};
1519	}
1520    }
1521    return format_email($real_name, $real_address, 1);
1522}
1523
1524sub mailmap {
1525    my (@addresses) = @_;
1526
1527    my @mapped_emails = ();
1528    foreach my $line (@addresses) {
1529	push(@mapped_emails, mailmap_email($line));
1530    }
1531    merge_by_realname(@mapped_emails) if ($email_use_mailmap);
1532    return @mapped_emails;
1533}
1534
1535sub merge_by_realname {
1536    my %address_map;
1537    my (@emails) = @_;
1538
1539    foreach my $email (@emails) {
1540	my ($name, $address) = parse_email($email);
1541	if (exists $address_map{$name}) {
1542	    $address = $address_map{$name};
1543	    $email = format_email($name, $address, 1);
1544	} else {
1545	    $address_map{$name} = $address;
1546	}
1547    }
1548}
1549
1550sub git_execute_cmd {
1551    my ($cmd) = @_;
1552    my @lines = ();
1553
1554    my $output = `$cmd`;
1555    $output =~ s/^\s*//gm;
1556    @lines = split("\n", $output);
1557
1558    return @lines;
1559}
1560
1561sub hg_execute_cmd {
1562    my ($cmd) = @_;
1563    my @lines = ();
1564
1565    my $output = `$cmd`;
1566    @lines = split("\n", $output);
1567
1568    return @lines;
1569}
1570
1571sub extract_formatted_signatures {
1572    my (@signature_lines) = @_;
1573
1574    my @type = @signature_lines;
1575
1576    s/\s*(.*):.*/$1/ for (@type);
1577
1578    # cut -f2- -d":"
1579    s/\s*.*:\s*(.+)\s*/$1/ for (@signature_lines);
1580
1581## Reformat email addresses (with names) to avoid badly written signatures
1582
1583    foreach my $signer (@signature_lines) {
1584	$signer = deduplicate_email($signer);
1585    }
1586
1587    return (\@type, \@signature_lines);
1588}
1589
1590sub vcs_find_signers {
1591    my ($cmd, $file) = @_;
1592    my $commits;
1593    my @lines = ();
1594    my @signatures = ();
1595    my @authors = ();
1596    my @stats = ();
1597
1598    @lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
1599
1600    my $pattern = $VCS_cmds{"commit_pattern"};
1601    my $author_pattern = $VCS_cmds{"author_pattern"};
1602    my $stat_pattern = $VCS_cmds{"stat_pattern"};
1603
1604    $stat_pattern =~ s/(\$\w+)/$1/eeg;		#interpolate $stat_pattern
1605
1606    $commits = grep(/$pattern/, @lines);	# of commits
1607
1608    @authors = grep(/$author_pattern/, @lines);
1609    @signatures = grep(/^[ \t]*${signature_pattern}.*\@.*$/, @lines);
1610    @stats = grep(/$stat_pattern/, @lines);
1611
1612#    print("stats: <@stats>\n");
1613
1614    return (0, \@signatures, \@authors, \@stats) if !@signatures;
1615
1616    save_commits_by_author(@lines) if ($interactive);
1617    save_commits_by_signer(@lines) if ($interactive);
1618
1619    if (!$email_git_penguin_chiefs) {
1620	@signatures = grep(!/${penguin_chiefs}/i, @signatures);
1621    }
1622
1623    my ($author_ref, $authors_ref) = extract_formatted_signatures(@authors);
1624    my ($types_ref, $signers_ref) = extract_formatted_signatures(@signatures);
1625
1626    return ($commits, $signers_ref, $authors_ref, \@stats);
1627}
1628
1629sub vcs_find_author {
1630    my ($cmd) = @_;
1631    my @lines = ();
1632
1633    @lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
1634
1635    if (!$email_git_penguin_chiefs) {
1636	@lines = grep(!/${penguin_chiefs}/i, @lines);
1637    }
1638
1639    return @lines if !@lines;
1640
1641    my @authors = ();
1642    foreach my $line (@lines) {
1643	if ($line =~ m/$VCS_cmds{"author_pattern"}/) {
1644	    my $author = $1;
1645	    my ($name, $address) = parse_email($author);
1646	    $author = format_email($name, $address, 1);
1647	    push(@authors, $author);
1648	}
1649    }
1650
1651    save_commits_by_author(@lines) if ($interactive);
1652    save_commits_by_signer(@lines) if ($interactive);
1653
1654    return @authors;
1655}
1656
1657sub vcs_save_commits {
1658    my ($cmd) = @_;
1659    my @lines = ();
1660    my @commits = ();
1661
1662    @lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
1663
1664    foreach my $line (@lines) {
1665	if ($line =~ m/$VCS_cmds{"blame_commit_pattern"}/) {
1666	    push(@commits, $1);
1667	}
1668    }
1669
1670    return @commits;
1671}
1672
1673sub vcs_blame {
1674    my ($file) = @_;
1675    my $cmd;
1676    my @commits = ();
1677
1678    return @commits if (!(-f $file));
1679
1680    if (@range && $VCS_cmds{"blame_range_cmd"} eq "") {
1681	my @all_commits = ();
1682
1683	$cmd = $VCS_cmds{"blame_file_cmd"};
1684	$cmd =~ s/(\$\w+)/$1/eeg;		#interpolate $cmd
1685	@all_commits = vcs_save_commits($cmd);
1686
1687	foreach my $file_range_diff (@range) {
1688	    next if (!($file_range_diff =~ m/(.+):(.+):(.+)/));
1689	    my $diff_file = $1;
1690	    my $diff_start = $2;
1691	    my $diff_length = $3;
1692	    next if ("$file" ne "$diff_file");
1693	    for (my $i = $diff_start; $i < $diff_start + $diff_length; $i++) {
1694		push(@commits, $all_commits[$i]);
1695	    }
1696	}
1697    } elsif (@range) {
1698	foreach my $file_range_diff (@range) {
1699	    next if (!($file_range_diff =~ m/(.+):(.+):(.+)/));
1700	    my $diff_file = $1;
1701	    my $diff_start = $2;
1702	    my $diff_length = $3;
1703	    next if ("$file" ne "$diff_file");
1704	    $cmd = $VCS_cmds{"blame_range_cmd"};
1705	    $cmd =~ s/(\$\w+)/$1/eeg;		#interpolate $cmd
1706	    push(@commits, vcs_save_commits($cmd));
1707	}
1708    } else {
1709	$cmd = $VCS_cmds{"blame_file_cmd"};
1710	$cmd =~ s/(\$\w+)/$1/eeg;		#interpolate $cmd
1711	@commits = vcs_save_commits($cmd);
1712    }
1713
1714    foreach my $commit (@commits) {
1715	$commit =~ s/^\^//g;
1716    }
1717
1718    return @commits;
1719}
1720
1721my $printed_novcs = 0;
1722sub vcs_exists {
1723    %VCS_cmds = %VCS_cmds_git;
1724    return 1 if eval $VCS_cmds{"available"};
1725    %VCS_cmds = %VCS_cmds_hg;
1726    return 2 if eval $VCS_cmds{"available"};
1727    %VCS_cmds = ();
1728    if (!$printed_novcs && $email_git) {
1729	warn("$P: No supported VCS found.  Add --nogit to options?\n");
1730	warn("Using a git repository produces better results.\n");
1731	warn("Try Linus Torvalds' latest git repository using:\n");
1732	warn("git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git\n");
1733	$printed_novcs = 1;
1734    }
1735    return 0;
1736}
1737
1738sub vcs_is_git {
1739    vcs_exists();
1740    return $vcs_used == 1;
1741}
1742
1743sub vcs_is_hg {
1744    return $vcs_used == 2;
1745}
1746
1747sub vcs_add_commit_signers {
1748    return if (!vcs_exists());
1749
1750    my ($commit, $desc) = @_;
1751    my $commit_count = 0;
1752    my $commit_authors_ref;
1753    my $commit_signers_ref;
1754    my $stats_ref;
1755    my @commit_authors = ();
1756    my @commit_signers = ();
1757    my $cmd;
1758
1759    $cmd = $VCS_cmds{"find_commit_signers_cmd"};
1760    $cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
1761
1762    ($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, "");
1763    @commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
1764    @commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
1765
1766    foreach my $signer (@commit_signers) {
1767	$signer = deduplicate_email($signer);
1768    }
1769
1770    vcs_assign($desc, 1, @commit_signers);
1771}
1772
1773sub interactive_get_maintainers {
1774    my ($list_ref) = @_;
1775    my @list = @$list_ref;
1776
1777    vcs_exists();
1778
1779    my %selected;
1780    my %authored;
1781    my %signed;
1782    my $count = 0;
1783    my $maintained = 0;
1784    foreach my $entry (@list) {
1785	$maintained = 1 if ($entry->[1] =~ /^(maintainer|supporter)/i);
1786	$selected{$count} = 1;
1787	$authored{$count} = 0;
1788	$signed{$count} = 0;
1789	$count++;
1790    }
1791
1792    #menu loop
1793    my $done = 0;
1794    my $print_options = 0;
1795    my $redraw = 1;
1796    while (!$done) {
1797	$count = 0;
1798	if ($redraw) {
1799	    printf STDERR "\n%1s %2s %-65s",
1800			  "*", "#", "email/list and role:stats";
1801	    if ($email_git ||
1802		($email_git_fallback && !$maintained) ||
1803		$email_git_blame) {
1804		print STDERR "auth sign";
1805	    }
1806	    print STDERR "\n";
1807	    foreach my $entry (@list) {
1808		my $email = $entry->[0];
1809		my $role = $entry->[1];
1810		my $sel = "";
1811		$sel = "*" if ($selected{$count});
1812		my $commit_author = $commit_author_hash{$email};
1813		my $commit_signer = $commit_signer_hash{$email};
1814		my $authored = 0;
1815		my $signed = 0;
1816		$authored++ for (@{$commit_author});
1817		$signed++ for (@{$commit_signer});
1818		printf STDERR "%1s %2d %-65s", $sel, $count + 1, $email;
1819		printf STDERR "%4d %4d", $authored, $signed
1820		    if ($authored > 0 || $signed > 0);
1821		printf STDERR "\n     %s\n", $role;
1822		if ($authored{$count}) {
1823		    my $commit_author = $commit_author_hash{$email};
1824		    foreach my $ref (@{$commit_author}) {
1825			print STDERR "     Author: @{$ref}[1]\n";
1826		    }
1827		}
1828		if ($signed{$count}) {
1829		    my $commit_signer = $commit_signer_hash{$email};
1830		    foreach my $ref (@{$commit_signer}) {
1831			print STDERR "     @{$ref}[2]: @{$ref}[1]\n";
1832		    }
1833		}
1834
1835		$count++;
1836	    }
1837	}
1838	my $date_ref = \$email_git_since;
1839	$date_ref = \$email_hg_since if (vcs_is_hg());
1840	if ($print_options) {
1841	    $print_options = 0;
1842	    if (vcs_exists()) {
1843		print STDERR <<EOT
1844
1845Version Control options:
1846g  use git history      [$email_git]
1847gf use git-fallback     [$email_git_fallback]
1848b  use git blame        [$email_git_blame]
1849bs use blame signatures [$email_git_blame_signatures]
1850c# minimum commits      [$email_git_min_signatures]
1851%# min percent          [$email_git_min_percent]
1852d# history to use       [$$date_ref]
1853x# max maintainers      [$email_git_max_maintainers]
1854t  all signature types  [$email_git_all_signature_types]
1855m  use .mailmap         [$email_use_mailmap]
1856EOT
1857	    }
1858	    print STDERR <<EOT
1859
1860Additional options:
18610  toggle all
1862tm toggle maintainers
1863tg toggle git entries
1864tl toggle open list entries
1865ts toggle subscriber list entries
1866f  emails in file       [$email_file_emails]
1867k  keywords in file     [$keywords]
1868r  remove duplicates    [$email_remove_duplicates]
1869p# pattern match depth  [$pattern_depth]
1870EOT
1871	}
1872	print STDERR
1873"\n#(toggle), A#(author), S#(signed) *(all), ^(none), O(options), Y(approve): ";
1874
1875	my $input = <STDIN>;
1876	chomp($input);
1877
1878	$redraw = 1;
1879	my $rerun = 0;
1880	my @wish = split(/[, ]+/, $input);
1881	foreach my $nr (@wish) {
1882	    $nr = lc($nr);
1883	    my $sel = substr($nr, 0, 1);
1884	    my $str = substr($nr, 1);
1885	    my $val = 0;
1886	    $val = $1 if $str =~ /^(\d+)$/;
1887
1888	    if ($sel eq "y") {
1889		$interactive = 0;
1890		$done = 1;
1891		$output_rolestats = 0;
1892		$output_roles = 0;
1893		last;
1894	    } elsif ($nr =~ /^\d+$/ && $nr > 0 && $nr <= $count) {
1895		$selected{$nr - 1} = !$selected{$nr - 1};
1896	    } elsif ($sel eq "*" || $sel eq '^') {
1897		my $toggle = 0;
1898		$toggle = 1 if ($sel eq '*');
1899		for (my $i = 0; $i < $count; $i++) {
1900		    $selected{$i} = $toggle;
1901		}
1902	    } elsif ($sel eq "0") {
1903		for (my $i = 0; $i < $count; $i++) {
1904		    $selected{$i} = !$selected{$i};
1905		}
1906	    } elsif ($sel eq "t") {
1907		if (lc($str) eq "m") {
1908		    for (my $i = 0; $i < $count; $i++) {
1909			$selected{$i} = !$selected{$i}
1910			    if ($list[$i]->[1] =~ /^(maintainer|supporter)/i);
1911		    }
1912		} elsif (lc($str) eq "g") {
1913		    for (my $i = 0; $i < $count; $i++) {
1914			$selected{$i} = !$selected{$i}
1915			    if ($list[$i]->[1] =~ /^(author|commit|signer)/i);
1916		    }
1917		} elsif (lc($str) eq "l") {
1918		    for (my $i = 0; $i < $count; $i++) {
1919			$selected{$i} = !$selected{$i}
1920			    if ($list[$i]->[1] =~ /^(open list)/i);
1921		    }
1922		} elsif (lc($str) eq "s") {
1923		    for (my $i = 0; $i < $count; $i++) {
1924			$selected{$i} = !$selected{$i}
1925			    if ($list[$i]->[1] =~ /^(subscriber list)/i);
1926		    }
1927		}
1928	    } elsif ($sel eq "a") {
1929		if ($val > 0 && $val <= $count) {
1930		    $authored{$val - 1} = !$authored{$val - 1};
1931		} elsif ($str eq '*' || $str eq '^') {
1932		    my $toggle = 0;
1933		    $toggle = 1 if ($str eq '*');
1934		    for (my $i = 0; $i < $count; $i++) {
1935			$authored{$i} = $toggle;
1936		    }
1937		}
1938	    } elsif ($sel eq "s") {
1939		if ($val > 0 && $val <= $count) {
1940		    $signed{$val - 1} = !$signed{$val - 1};
1941		} elsif ($str eq '*' || $str eq '^') {
1942		    my $toggle = 0;
1943		    $toggle = 1 if ($str eq '*');
1944		    for (my $i = 0; $i < $count; $i++) {
1945			$signed{$i} = $toggle;
1946		    }
1947		}
1948	    } elsif ($sel eq "o") {
1949		$print_options = 1;
1950		$redraw = 1;
1951	    } elsif ($sel eq "g") {
1952		if ($str eq "f") {
1953		    bool_invert(\$email_git_fallback);
1954		} else {
1955		    bool_invert(\$email_git);
1956		}
1957		$rerun = 1;
1958	    } elsif ($sel eq "b") {
1959		if ($str eq "s") {
1960		    bool_invert(\$email_git_blame_signatures);
1961		} else {
1962		    bool_invert(\$email_git_blame);
1963		}
1964		$rerun = 1;
1965	    } elsif ($sel eq "c") {
1966		if ($val > 0) {
1967		    $email_git_min_signatures = $val;
1968		    $rerun = 1;
1969		}
1970	    } elsif ($sel eq "x") {
1971		if ($val > 0) {
1972		    $email_git_max_maintainers = $val;
1973		    $rerun = 1;
1974		}
1975	    } elsif ($sel eq "%") {
1976		if ($str ne "" && $val >= 0) {
1977		    $email_git_min_percent = $val;
1978		    $rerun = 1;
1979		}
1980	    } elsif ($sel eq "d") {
1981		if (vcs_is_git()) {
1982		    $email_git_since = $str;
1983		} elsif (vcs_is_hg()) {
1984		    $email_hg_since = $str;
1985		}
1986		$rerun = 1;
1987	    } elsif ($sel eq "t") {
1988		bool_invert(\$email_git_all_signature_types);
1989		$rerun = 1;
1990	    } elsif ($sel eq "f") {
1991		bool_invert(\$email_file_emails);
1992		$rerun = 1;
1993	    } elsif ($sel eq "r") {
1994		bool_invert(\$email_remove_duplicates);
1995		$rerun = 1;
1996	    } elsif ($sel eq "m") {
1997		bool_invert(\$email_use_mailmap);
1998		read_mailmap();
1999		$rerun = 1;
2000	    } elsif ($sel eq "k") {
2001		bool_invert(\$keywords);
2002		$rerun = 1;
2003	    } elsif ($sel eq "p") {
2004		if ($str ne "" && $val >= 0) {
2005		    $pattern_depth = $val;
2006		    $rerun = 1;
2007		}
2008	    } elsif ($sel eq "h" || $sel eq "?") {
2009		print STDERR <<EOT
2010
2011Interactive mode allows you to select the various maintainers, submitters,
2012commit signers and mailing lists that could be CC'd on a patch.
2013
2014Any *'d entry is selected.
2015
2016If you have git or hg installed, you can choose to summarize the commit
2017history of files in the patch.  Also, each line of the current file can
2018be matched to its commit author and that commits signers with blame.
2019
2020Various knobs exist to control the length of time for active commit
2021tracking, the maximum number of commit authors and signers to add,
2022and such.
2023
2024Enter selections at the prompt until you are satisfied that the selected
2025maintainers are appropriate.  You may enter multiple selections separated
2026by either commas or spaces.
2027
2028EOT
2029	    } else {
2030		print STDERR "invalid option: '$nr'\n";
2031		$redraw = 0;
2032	    }
2033	}
2034	if ($rerun) {
2035	    print STDERR "git-blame can be very slow, please have patience..."
2036		if ($email_git_blame);
2037	    goto &get_maintainers;
2038	}
2039    }
2040
2041    #drop not selected entries
2042    $count = 0;
2043    my @new_emailto = ();
2044    foreach my $entry (@list) {
2045	if ($selected{$count}) {
2046	    push(@new_emailto, $list[$count]);
2047	}
2048	$count++;
2049    }
2050    return @new_emailto;
2051}
2052
2053sub bool_invert {
2054    my ($bool_ref) = @_;
2055
2056    if ($$bool_ref) {
2057	$$bool_ref = 0;
2058    } else {
2059	$$bool_ref = 1;
2060    }
2061}
2062
2063sub deduplicate_email {
2064    my ($email) = @_;
2065
2066    my $matched = 0;
2067    my ($name, $address) = parse_email($email);
2068    $email = format_email($name, $address, 1);
2069    $email = mailmap_email($email);
2070
2071    return $email if (!$email_remove_duplicates);
2072
2073    ($name, $address) = parse_email($email);
2074
2075    if ($name ne "" && $deduplicate_name_hash{lc($name)}) {
2076	$name = $deduplicate_name_hash{lc($name)}->[0];
2077	$address = $deduplicate_name_hash{lc($name)}->[1];
2078	$matched = 1;
2079    } elsif ($deduplicate_address_hash{lc($address)}) {
2080	$name = $deduplicate_address_hash{lc($address)}->[0];
2081	$address = $deduplicate_address_hash{lc($address)}->[1];
2082	$matched = 1;
2083    }
2084    if (!$matched) {
2085	$deduplicate_name_hash{lc($name)} = [ $name, $address ];
2086	$deduplicate_address_hash{lc($address)} = [ $name, $address ];
2087    }
2088    $email = format_email($name, $address, 1);
2089    $email = mailmap_email($email);
2090    return $email;
2091}
2092
2093sub save_commits_by_author {
2094    my (@lines) = @_;
2095
2096    my @authors = ();
2097    my @commits = ();
2098    my @subjects = ();
2099
2100    foreach my $line (@lines) {
2101	if ($line =~ m/$VCS_cmds{"author_pattern"}/) {
2102	    my $author = $1;
2103	    $author = deduplicate_email($author);
2104	    push(@authors, $author);
2105	}
2106	push(@commits, $1) if ($line =~ m/$VCS_cmds{"commit_pattern"}/);
2107	push(@subjects, $1) if ($line =~ m/$VCS_cmds{"subject_pattern"}/);
2108    }
2109
2110    for (my $i = 0; $i < @authors; $i++) {
2111	my $exists = 0;
2112	foreach my $ref(@{$commit_author_hash{$authors[$i]}}) {
2113	    if (@{$ref}[0] eq $commits[$i] &&
2114		@{$ref}[1] eq $subjects[$i]) {
2115		$exists = 1;
2116		last;
2117	    }
2118	}
2119	if (!$exists) {
2120	    push(@{$commit_author_hash{$authors[$i]}},
2121		 [ ($commits[$i], $subjects[$i]) ]);
2122	}
2123    }
2124}
2125
2126sub save_commits_by_signer {
2127    my (@lines) = @_;
2128
2129    my $commit = "";
2130    my $subject = "";
2131
2132    foreach my $line (@lines) {
2133	$commit = $1 if ($line =~ m/$VCS_cmds{"commit_pattern"}/);
2134	$subject = $1 if ($line =~ m/$VCS_cmds{"subject_pattern"}/);
2135	if ($line =~ /^[ \t]*${signature_pattern}.*\@.*$/) {
2136	    my @signatures = ($line);
2137	    my ($types_ref, $signers_ref) = extract_formatted_signatures(@signatures);
2138	    my @types = @$types_ref;
2139	    my @signers = @$signers_ref;
2140
2141	    my $type = $types[0];
2142	    my $signer = $signers[0];
2143
2144	    $signer = deduplicate_email($signer);
2145
2146	    my $exists = 0;
2147	    foreach my $ref(@{$commit_signer_hash{$signer}}) {
2148		if (@{$ref}[0] eq $commit &&
2149		    @{$ref}[1] eq $subject &&
2150		    @{$ref}[2] eq $type) {
2151		    $exists = 1;
2152		    last;
2153		}
2154	    }
2155	    if (!$exists) {
2156		push(@{$commit_signer_hash{$signer}},
2157		     [ ($commit, $subject, $type) ]);
2158	    }
2159	}
2160    }
2161}
2162
2163sub vcs_assign {
2164    my ($role, $divisor, @lines) = @_;
2165
2166    my %hash;
2167    my $count = 0;
2168
2169    return if (@lines <= 0);
2170
2171    if ($divisor <= 0) {
2172	warn("Bad divisor in " . (caller(0))[3] . ": $divisor\n");
2173	$divisor = 1;
2174    }
2175
2176    @lines = mailmap(@lines);
2177
2178    return if (@lines <= 0);
2179
2180    @lines = sort(@lines);
2181
2182    # uniq -c
2183    $hash{$_}++ for @lines;
2184
2185    # sort -rn
2186    foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
2187	my $sign_offs = $hash{$line};
2188	my $percent = $sign_offs * 100 / $divisor;
2189
2190	$percent = 100 if ($percent > 100);
2191	next if (ignore_email_address($line));
2192	$count++;
2193	last if ($sign_offs < $email_git_min_signatures ||
2194		 $count > $email_git_max_maintainers ||
2195		 $percent < $email_git_min_percent);
2196	push_email_address($line, '');
2197	if ($output_rolestats) {
2198	    my $fmt_percent = sprintf("%.0f", $percent);
2199	    add_role($line, "$role:$sign_offs/$divisor=$fmt_percent%");
2200	} else {
2201	    add_role($line, $role);
2202	}
2203    }
2204}
2205
2206sub vcs_file_signoffs {
2207    my ($file) = @_;
2208
2209    my $authors_ref;
2210    my $signers_ref;
2211    my $stats_ref;
2212    my @authors = ();
2213    my @signers = ();
2214    my @stats = ();
2215    my $commits;
2216
2217    $vcs_used = vcs_exists();
2218    return if (!$vcs_used);
2219
2220    my $cmd = $VCS_cmds{"find_signers_cmd"};
2221    $cmd =~ s/(\$\w+)/$1/eeg;		# interpolate $cmd
2222
2223    ($commits, $signers_ref, $authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
2224
2225    @signers = @{$signers_ref} if defined $signers_ref;
2226    @authors = @{$authors_ref} if defined $authors_ref;
2227    @stats = @{$stats_ref} if defined $stats_ref;
2228
2229#    print("commits: <$commits>\nsigners:<@signers>\nauthors: <@authors>\nstats: <@stats>\n");
2230
2231    foreach my $signer (@signers) {
2232	$signer = deduplicate_email($signer);
2233    }
2234
2235    vcs_assign("commit_signer", $commits, @signers);
2236    vcs_assign("authored", $commits, @authors);
2237    if ($#authors == $#stats) {
2238	my $stat_pattern = $VCS_cmds{"stat_pattern"};
2239	$stat_pattern =~ s/(\$\w+)/$1/eeg;	#interpolate $stat_pattern
2240
2241	my $added = 0;
2242	my $deleted = 0;
2243	for (my $i = 0; $i <= $#stats; $i++) {
2244	    if ($stats[$i] =~ /$stat_pattern/) {
2245		$added += $1;
2246		$deleted += $2;
2247	    }
2248	}
2249	my @tmp_authors = uniq(@authors);
2250	foreach my $author (@tmp_authors) {
2251	    $author = deduplicate_email($author);
2252	}
2253	@tmp_authors = uniq(@tmp_authors);
2254	my @list_added = ();
2255	my @list_deleted = ();
2256	foreach my $author (@tmp_authors) {
2257	    my $auth_added = 0;
2258	    my $auth_deleted = 0;
2259	    for (my $i = 0; $i <= $#stats; $i++) {
2260		if ($author eq deduplicate_email($authors[$i]) &&
2261		    $stats[$i] =~ /$stat_pattern/) {
2262		    $auth_added += $1;
2263		    $auth_deleted += $2;
2264		}
2265	    }
2266	    for (my $i = 0; $i < $auth_added; $i++) {
2267		push(@list_added, $author);
2268	    }
2269	    for (my $i = 0; $i < $auth_deleted; $i++) {
2270		push(@list_deleted, $author);
2271	    }
2272	}
2273	vcs_assign("added_lines", $added, @list_added);
2274	vcs_assign("removed_lines", $deleted, @list_deleted);
2275    }
2276}
2277
2278sub vcs_file_blame {
2279    my ($file) = @_;
2280
2281    my @signers = ();
2282    my @all_commits = ();
2283    my @commits = ();
2284    my $total_commits;
2285    my $total_lines;
2286
2287    $vcs_used = vcs_exists();
2288    return if (!$vcs_used);
2289
2290    @all_commits = vcs_blame($file);
2291    @commits = uniq(@all_commits);
2292    $total_commits = @commits;
2293    $total_lines = @all_commits;
2294
2295    if ($email_git_blame_signatures) {
2296	if (vcs_is_hg()) {
2297	    my $commit_count;
2298	    my $commit_authors_ref;
2299	    my $commit_signers_ref;
2300	    my $stats_ref;
2301	    my @commit_authors = ();
2302	    my @commit_signers = ();
2303	    my $commit = join(" -r ", @commits);
2304	    my $cmd;
2305
2306	    $cmd = $VCS_cmds{"find_commit_signers_cmd"};
2307	    $cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
2308
2309	    ($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
2310	    @commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
2311	    @commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
2312
2313	    push(@signers, @commit_signers);
2314	} else {
2315	    foreach my $commit (@commits) {
2316		my $commit_count;
2317		my $commit_authors_ref;
2318		my $commit_signers_ref;
2319		my $stats_ref;
2320		my @commit_authors = ();
2321		my @commit_signers = ();
2322		my $cmd;
2323
2324		$cmd = $VCS_cmds{"find_commit_signers_cmd"};
2325		$cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
2326
2327		($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
2328		@commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
2329		@commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
2330
2331		push(@signers, @commit_signers);
2332	    }
2333	}
2334    }
2335
2336    if ($from_filename) {
2337	if ($output_rolestats) {
2338	    my @blame_signers;
2339	    if (vcs_is_hg()) {{		# Double brace for last exit
2340		my $commit_count;
2341		my @commit_signers = ();
2342		@commits = uniq(@commits);
2343		@commits = sort(@commits);
2344		my $commit = join(" -r ", @commits);
2345		my $cmd;
2346
2347		$cmd = $VCS_cmds{"find_commit_author_cmd"};
2348		$cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
2349
2350		my @lines = ();
2351
2352		@lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
2353
2354		if (!$email_git_penguin_chiefs) {
2355		    @lines = grep(!/${penguin_chiefs}/i, @lines);
2356		}
2357
2358		last if !@lines;
2359
2360		my @authors = ();
2361		foreach my $line (@lines) {
2362		    if ($line =~ m/$VCS_cmds{"author_pattern"}/) {
2363			my $author = $1;
2364			$author = deduplicate_email($author);
2365			push(@authors, $author);
2366		    }
2367		}
2368
2369		save_commits_by_author(@lines) if ($interactive);
2370		save_commits_by_signer(@lines) if ($interactive);
2371
2372		push(@signers, @authors);
2373	    }}
2374	    else {
2375		foreach my $commit (@commits) {
2376		    my $i;
2377		    my $cmd = $VCS_cmds{"find_commit_author_cmd"};
2378		    $cmd =~ s/(\$\w+)/$1/eeg;	#interpolate $cmd
2379		    my @author = vcs_find_author($cmd);
2380		    next if !@author;
2381
2382		    my $formatted_author = deduplicate_email($author[0]);
2383
2384		    my $count = grep(/$commit/, @all_commits);
2385		    for ($i = 0; $i < $count ; $i++) {
2386			push(@blame_signers, $formatted_author);
2387		    }
2388		}
2389	    }
2390	    if (@blame_signers) {
2391		vcs_assign("authored lines", $total_lines, @blame_signers);
2392	    }
2393	}
2394	foreach my $signer (@signers) {
2395	    $signer = deduplicate_email($signer);
2396	}
2397	vcs_assign("commits", $total_commits, @signers);
2398    } else {
2399	foreach my $signer (@signers) {
2400	    $signer = deduplicate_email($signer);
2401	}
2402	vcs_assign("modified commits", $total_commits, @signers);
2403    }
2404}
2405
2406sub vcs_file_exists {
2407    my ($file) = @_;
2408
2409    my $exists;
2410
2411    my $vcs_used = vcs_exists();
2412    return 0 if (!$vcs_used);
2413
2414    my $cmd = $VCS_cmds{"file_exists_cmd"};
2415    $cmd =~ s/(\$\w+)/$1/eeg;		# interpolate $cmd
2416    $cmd .= " 2>&1";
2417    $exists = &{$VCS_cmds{"execute_cmd"}}($cmd);
2418
2419    return 0 if ($? != 0);
2420
2421    return $exists;
2422}
2423
2424sub vcs_list_files {
2425    my ($file) = @_;
2426
2427    my @lsfiles = ();
2428
2429    my $vcs_used = vcs_exists();
2430    return 0 if (!$vcs_used);
2431
2432    my $cmd = $VCS_cmds{"list_files_cmd"};
2433    $cmd =~ s/(\$\w+)/$1/eeg;   # interpolate $cmd
2434    @lsfiles = &{$VCS_cmds{"execute_cmd"}}($cmd);
2435
2436    return () if ($? != 0);
2437
2438    return @lsfiles;
2439}
2440
2441sub uniq {
2442    my (@parms) = @_;
2443
2444    my %saw;
2445    @parms = grep(!$saw{$_}++, @parms);
2446    return @parms;
2447}
2448
2449sub sort_and_uniq {
2450    my (@parms) = @_;
2451
2452    my %saw;
2453    @parms = sort @parms;
2454    @parms = grep(!$saw{$_}++, @parms);
2455    return @parms;
2456}
2457
2458sub clean_file_emails {
2459    my (@file_emails) = @_;
2460    my @fmt_emails = ();
2461
2462    foreach my $email (@file_emails) {
2463	$email =~ s/[\(\<\{]{0,1}([A-Za-z0-9_\.\+-]+\@[A-Za-z0-9\.-]+)[\)\>\}]{0,1}/\<$1\>/g;
2464	my ($name, $address) = parse_email($email);
 
 
 
2465
2466	# Strip quotes for easier processing, format_email will add them back
2467	$name =~ s/^"(.*)"$/$1/;
2468
2469	# Split into name-like parts and remove stray punctuation particles
2470	my @nw = split(/[^\p{L}\'\,\.\+-]/, $name);
2471	@nw = grep(!/^[\'\,\.\+-]$/, @nw);
2472
2473	# Make a best effort to extract the name, and only the name, by taking
2474	# only the last two names, or in the case of obvious initials, the last
2475	# three names.
2476	if (@nw > 2) {
2477	    my $first = $nw[@nw - 3];
2478	    my $middle = $nw[@nw - 2];
2479	    my $last = $nw[@nw - 1];
2480
2481	    if (((length($first) == 1 && $first =~ m/\p{L}/) ||
2482		 (length($first) == 2 && substr($first, -1) eq ".")) ||
2483		(length($middle) == 1 ||
2484		 (length($middle) == 2 && substr($middle, -1) eq "."))) {
2485		$name = "$first $middle $last";
2486	    } else {
2487		$name = "$middle $last";
2488	    }
2489	} else {
2490	    $name = "@nw";
2491	}
2492
2493	if (substr($name, -1) =~ /[,\.]/) {
2494	    $name = substr($name, 0, length($name) - 1);
 
 
2495	}
2496
2497	if (substr($name, 0, 1) =~ /[,\.]/) {
2498	    $name = substr($name, 1, length($name) - 1);
 
 
2499	}
2500
2501	my $fmt_email = format_email($name, $address, $email_usename);
2502	push(@fmt_emails, $fmt_email);
2503    }
2504    return @fmt_emails;
2505}
2506
2507sub merge_email {
2508    my @lines;
2509    my %saw;
2510
2511    for (@_) {
2512	my ($address, $role) = @$_;
2513	if (!$saw{$address}) {
2514	    if ($output_roles) {
2515		push(@lines, "$address ($role)");
2516	    } else {
2517		push(@lines, $address);
2518	    }
2519	    $saw{$address} = 1;
2520	}
2521    }
2522
2523    return @lines;
2524}
2525
2526sub output {
2527    my (@parms) = @_;
2528
2529    if ($output_multiline) {
2530	foreach my $line (@parms) {
2531	    print("${line}\n");
2532	}
2533    } else {
2534	print(join($output_separator, @parms));
2535	print("\n");
2536    }
2537}
2538
2539my $rfc822re;
2540
2541sub make_rfc822re {
2542#   Basic lexical tokens are specials, domain_literal, quoted_string, atom, and
2543#   comment.  We must allow for rfc822_lwsp (or comments) after each of these.
2544#   This regexp will only work on addresses which have had comments stripped
2545#   and replaced with rfc822_lwsp.
2546
2547    my $specials = '()<>@,;:\\\\".\\[\\]';
2548    my $controls = '\\000-\\037\\177';
2549
2550    my $dtext = "[^\\[\\]\\r\\\\]";
2551    my $domain_literal = "\\[(?:$dtext|\\\\.)*\\]$rfc822_lwsp*";
2552
2553    my $quoted_string = "\"(?:[^\\\"\\r\\\\]|\\\\.|$rfc822_lwsp)*\"$rfc822_lwsp*";
2554
2555#   Use zero-width assertion to spot the limit of an atom.  A simple
2556#   $rfc822_lwsp* causes the regexp engine to hang occasionally.
2557    my $atom = "[^$specials $controls]+(?:$rfc822_lwsp+|\\Z|(?=[\\[\"$specials]))";
2558    my $word = "(?:$atom|$quoted_string)";
2559    my $localpart = "$word(?:\\.$rfc822_lwsp*$word)*";
2560
2561    my $sub_domain = "(?:$atom|$domain_literal)";
2562    my $domain = "$sub_domain(?:\\.$rfc822_lwsp*$sub_domain)*";
2563
2564    my $addr_spec = "$localpart\@$rfc822_lwsp*$domain";
2565
2566    my $phrase = "$word*";
2567    my $route = "(?:\@$domain(?:,\@$rfc822_lwsp*$domain)*:$rfc822_lwsp*)";
2568    my $route_addr = "\\<$rfc822_lwsp*$route?$addr_spec\\>$rfc822_lwsp*";
2569    my $mailbox = "(?:$addr_spec|$phrase$route_addr)";
2570
2571    my $group = "$phrase:$rfc822_lwsp*(?:$mailbox(?:,\\s*$mailbox)*)?;\\s*";
2572    my $address = "(?:$mailbox|$group)";
2573
2574    return "$rfc822_lwsp*$address";
2575}
2576
2577sub rfc822_strip_comments {
2578    my $s = shift;
2579#   Recursively remove comments, and replace with a single space.  The simpler
2580#   regexps in the Email Addressing FAQ are imperfect - they will miss escaped
2581#   chars in atoms, for example.
2582
2583    while ($s =~ s/^((?:[^"\\]|\\.)*
2584                    (?:"(?:[^"\\]|\\.)*"(?:[^"\\]|\\.)*)*)
2585                    \((?:[^()\\]|\\.)*\)/$1 /osx) {}
2586    return $s;
2587}
2588
2589#   valid: returns true if the parameter is an RFC822 valid address
2590#
2591sub rfc822_valid {
2592    my $s = rfc822_strip_comments(shift);
2593
2594    if (!$rfc822re) {
2595        $rfc822re = make_rfc822re();
2596    }
2597
2598    return $s =~ m/^$rfc822re$/so && $s =~ m/^$rfc822_char*$/;
2599}
2600
2601#   validlist: In scalar context, returns true if the parameter is an RFC822
2602#              valid list of addresses.
2603#
2604#              In list context, returns an empty list on failure (an invalid
2605#              address was found); otherwise a list whose first element is the
2606#              number of addresses found and whose remaining elements are the
2607#              addresses.  This is needed to disambiguate failure (invalid)
2608#              from success with no addresses found, because an empty string is
2609#              a valid list.
2610
2611sub rfc822_validlist {
2612    my $s = rfc822_strip_comments(shift);
2613
2614    if (!$rfc822re) {
2615        $rfc822re = make_rfc822re();
2616    }
2617    # * null list items are valid according to the RFC
2618    # * the '1' business is to aid in distinguishing failure from no results
2619
2620    my @r;
2621    if ($s =~ m/^(?:$rfc822re)?(?:,(?:$rfc822re)?)*$/so &&
2622	$s =~ m/^$rfc822_char*$/) {
2623        while ($s =~ m/(?:^|,$rfc822_lwsp*)($rfc822re)/gos) {
2624            push(@r, $1);
2625        }
2626        return wantarray ? (scalar(@r), @r) : 1;
2627    }
2628    return wantarray ? () : 0;
2629}
v5.14.15
   1#!/usr/bin/env perl
   2# SPDX-License-Identifier: GPL-2.0
   3#
   4# (c) 2007, Joe Perches <joe@perches.com>
   5#           created from checkpatch.pl
   6#
   7# Print selected MAINTAINERS information for
   8# the files modified in a patch or for a file
   9#
  10# usage: perl scripts/get_maintainer.pl [OPTIONS] <patch>
  11#        perl scripts/get_maintainer.pl [OPTIONS] -f <file>
  12
  13use warnings;
  14use strict;
  15
  16my $P = $0;
  17my $V = '0.26';
  18
  19use Getopt::Long qw(:config no_auto_abbrev);
  20use Cwd;
  21use File::Find;
  22use File::Spec::Functions;
 
  23
  24my $cur_path = fastgetcwd() . '/';
  25my $lk_path = "./";
  26my $email = 1;
  27my $email_usename = 1;
  28my $email_maintainer = 1;
  29my $email_reviewer = 1;
  30my $email_fixes = 1;
  31my $email_list = 1;
  32my $email_moderated_list = 1;
  33my $email_subscriber_list = 0;
  34my $email_git_penguin_chiefs = 0;
  35my $email_git = 0;
  36my $email_git_all_signature_types = 0;
  37my $email_git_blame = 0;
  38my $email_git_blame_signatures = 1;
  39my $email_git_fallback = 1;
  40my $email_git_min_signatures = 1;
  41my $email_git_max_maintainers = 5;
  42my $email_git_min_percent = 5;
  43my $email_git_since = "1-year-ago";
  44my $email_hg_since = "-365";
  45my $interactive = 0;
  46my $email_remove_duplicates = 1;
  47my $email_use_mailmap = 1;
  48my $output_multiline = 1;
  49my $output_separator = ", ";
  50my $output_roles = 0;
  51my $output_rolestats = 1;
  52my $output_section_maxlen = 50;
  53my $scm = 0;
  54my $tree = 1;
  55my $web = 0;
  56my $subsystem = 0;
  57my $status = 0;
  58my $letters = "";
  59my $keywords = 1;
 
  60my $sections = 0;
  61my $email_file_emails = 0;
  62my $from_filename = 0;
  63my $pattern_depth = 0;
  64my $self_test = undef;
  65my $version = 0;
  66my $help = 0;
  67my $find_maintainer_files = 0;
  68my $maintainer_path;
  69my $vcs_used = 0;
  70
  71my $exit = 0;
  72
  73my @files = ();
  74my @fixes = ();			# If a patch description includes Fixes: lines
  75my @range = ();
  76my @keyword_tvi = ();
  77my @file_emails = ();
  78
  79my %commit_author_hash;
  80my %commit_signer_hash;
  81
  82my @penguin_chief = ();
  83push(@penguin_chief, "Linus Torvalds:torvalds\@linux-foundation.org");
  84#Andrew wants in on most everything - 2009/01/14
  85#push(@penguin_chief, "Andrew Morton:akpm\@linux-foundation.org");
  86
  87my @penguin_chief_names = ();
  88foreach my $chief (@penguin_chief) {
  89    if ($chief =~ m/^(.*):(.*)/) {
  90	my $chief_name = $1;
  91	my $chief_addr = $2;
  92	push(@penguin_chief_names, $chief_name);
  93    }
  94}
  95my $penguin_chiefs = "\(" . join("|", @penguin_chief_names) . "\)";
  96
  97# Signature types of people who are either
  98# 	a) responsible for the code in question, or
  99# 	b) familiar enough with it to give relevant feedback
 100my @signature_tags = ();
 101push(@signature_tags, "Signed-off-by:");
 102push(@signature_tags, "Reviewed-by:");
 103push(@signature_tags, "Acked-by:");
 104
 105my $signature_pattern = "\(" . join("|", @signature_tags) . "\)";
 106
 107# rfc822 email address - preloaded methods go here.
 108my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
 109my $rfc822_char = '[\\000-\\377]';
 110
 111# VCS command support: class-like functions and strings
 112
 113my %VCS_cmds;
 114
 115my %VCS_cmds_git = (
 116    "execute_cmd" => \&git_execute_cmd,
 117    "available" => '(which("git") ne "") && (-e ".git")',
 118    "find_signers_cmd" =>
 119	"git log --no-color --follow --since=\$email_git_since " .
 120	    '--numstat --no-merges ' .
 121	    '--format="GitCommit: %H%n' .
 122		      'GitAuthor: %an <%ae>%n' .
 123		      'GitDate: %aD%n' .
 124		      'GitSubject: %s%n' .
 125		      '%b%n"' .
 126	    " -- \$file",
 127    "find_commit_signers_cmd" =>
 128	"git log --no-color " .
 129	    '--numstat ' .
 130	    '--format="GitCommit: %H%n' .
 131		      'GitAuthor: %an <%ae>%n' .
 132		      'GitDate: %aD%n' .
 133		      'GitSubject: %s%n' .
 134		      '%b%n"' .
 135	    " -1 \$commit",
 136    "find_commit_author_cmd" =>
 137	"git log --no-color " .
 138	    '--numstat ' .
 139	    '--format="GitCommit: %H%n' .
 140		      'GitAuthor: %an <%ae>%n' .
 141		      'GitDate: %aD%n' .
 142		      'GitSubject: %s%n"' .
 143	    " -1 \$commit",
 144    "blame_range_cmd" => "git blame -l -L \$diff_start,+\$diff_length \$file",
 145    "blame_file_cmd" => "git blame -l \$file",
 146    "commit_pattern" => "^GitCommit: ([0-9a-f]{40,40})",
 147    "blame_commit_pattern" => "^([0-9a-f]+) ",
 148    "author_pattern" => "^GitAuthor: (.*)",
 149    "subject_pattern" => "^GitSubject: (.*)",
 150    "stat_pattern" => "^(\\d+)\\t(\\d+)\\t\$file\$",
 151    "file_exists_cmd" => "git ls-files \$file",
 152    "list_files_cmd" => "git ls-files \$file",
 153);
 154
 155my %VCS_cmds_hg = (
 156    "execute_cmd" => \&hg_execute_cmd,
 157    "available" => '(which("hg") ne "") && (-d ".hg")',
 158    "find_signers_cmd" =>
 159	"hg log --date=\$email_hg_since " .
 160	    "--template='HgCommit: {node}\\n" .
 161	                "HgAuthor: {author}\\n" .
 162			"HgSubject: {desc}\\n'" .
 163	    " -- \$file",
 164    "find_commit_signers_cmd" =>
 165	"hg log " .
 166	    "--template='HgSubject: {desc}\\n'" .
 167	    " -r \$commit",
 168    "find_commit_author_cmd" =>
 169	"hg log " .
 170	    "--template='HgCommit: {node}\\n" .
 171		        "HgAuthor: {author}\\n" .
 172			"HgSubject: {desc|firstline}\\n'" .
 173	    " -r \$commit",
 174    "blame_range_cmd" => "",		# not supported
 175    "blame_file_cmd" => "hg blame -n \$file",
 176    "commit_pattern" => "^HgCommit: ([0-9a-f]{40,40})",
 177    "blame_commit_pattern" => "^([ 0-9a-f]+):",
 178    "author_pattern" => "^HgAuthor: (.*)",
 179    "subject_pattern" => "^HgSubject: (.*)",
 180    "stat_pattern" => "^(\\d+)\t(\\d+)\t\$file\$",
 181    "file_exists_cmd" => "hg files \$file",
 182    "list_files_cmd" => "hg manifest -R \$file",
 183);
 184
 185my $conf = which_conf(".get_maintainer.conf");
 186if (-f $conf) {
 187    my @conf_args;
 188    open(my $conffile, '<', "$conf")
 189	or warn "$P: Can't find a readable .get_maintainer.conf file $!\n";
 190
 191    while (<$conffile>) {
 192	my $line = $_;
 193
 194	$line =~ s/\s*\n?$//g;
 195	$line =~ s/^\s*//g;
 196	$line =~ s/\s+/ /g;
 197
 198	next if ($line =~ m/^\s*#/);
 199	next if ($line =~ m/^\s*$/);
 200
 201	my @words = split(" ", $line);
 202	foreach my $word (@words) {
 203	    last if ($word =~ m/^#/);
 204	    push (@conf_args, $word);
 205	}
 206    }
 207    close($conffile);
 208    unshift(@ARGV, @conf_args) if @conf_args;
 209}
 210
 211my @ignore_emails = ();
 212my $ignore_file = which_conf(".get_maintainer.ignore");
 213if (-f $ignore_file) {
 214    open(my $ignore, '<', "$ignore_file")
 215	or warn "$P: Can't find a readable .get_maintainer.ignore file $!\n";
 216    while (<$ignore>) {
 217	my $line = $_;
 218
 219	$line =~ s/\s*\n?$//;
 220	$line =~ s/^\s*//;
 221	$line =~ s/\s+$//;
 222	$line =~ s/#.*$//;
 223
 224	next if ($line =~ m/^\s*$/);
 225	if (rfc822_valid($line)) {
 226	    push(@ignore_emails, $line);
 227	}
 228    }
 229    close($ignore);
 230}
 231
 232if ($#ARGV > 0) {
 233    foreach (@ARGV) {
 234        if ($_ =~ /^-{1,2}self-test(?:=|$)/) {
 235            die "$P: using --self-test does not allow any other option or argument\n";
 236        }
 237    }
 238}
 239
 240if (!GetOptions(
 241		'email!' => \$email,
 242		'git!' => \$email_git,
 243		'git-all-signature-types!' => \$email_git_all_signature_types,
 244		'git-blame!' => \$email_git_blame,
 245		'git-blame-signatures!' => \$email_git_blame_signatures,
 246		'git-fallback!' => \$email_git_fallback,
 247		'git-chief-penguins!' => \$email_git_penguin_chiefs,
 248		'git-min-signatures=i' => \$email_git_min_signatures,
 249		'git-max-maintainers=i' => \$email_git_max_maintainers,
 250		'git-min-percent=i' => \$email_git_min_percent,
 251		'git-since=s' => \$email_git_since,
 252		'hg-since=s' => \$email_hg_since,
 253		'i|interactive!' => \$interactive,
 254		'remove-duplicates!' => \$email_remove_duplicates,
 255		'mailmap!' => \$email_use_mailmap,
 256		'm!' => \$email_maintainer,
 257		'r!' => \$email_reviewer,
 258		'n!' => \$email_usename,
 259		'l!' => \$email_list,
 260		'fixes!' => \$email_fixes,
 261		'moderated!' => \$email_moderated_list,
 262		's!' => \$email_subscriber_list,
 263		'multiline!' => \$output_multiline,
 264		'roles!' => \$output_roles,
 265		'rolestats!' => \$output_rolestats,
 266		'separator=s' => \$output_separator,
 267		'subsystem!' => \$subsystem,
 268		'status!' => \$status,
 269		'scm!' => \$scm,
 270		'tree!' => \$tree,
 271		'web!' => \$web,
 272		'letters=s' => \$letters,
 273		'pattern-depth=i' => \$pattern_depth,
 274		'k|keywords!' => \$keywords,
 
 275		'sections!' => \$sections,
 276		'fe|file-emails!' => \$email_file_emails,
 277		'f|file' => \$from_filename,
 278		'find-maintainer-files' => \$find_maintainer_files,
 279		'mpath|maintainer-path=s' => \$maintainer_path,
 280		'self-test:s' => \$self_test,
 281		'v|version' => \$version,
 282		'h|help|usage' => \$help,
 283		)) {
 284    die "$P: invalid argument - use --help if necessary\n";
 285}
 286
 287if ($help != 0) {
 288    usage();
 289    exit 0;
 290}
 291
 292if ($version != 0) {
 293    print("${P} ${V}\n");
 294    exit 0;
 295}
 296
 297if (defined $self_test) {
 298    read_all_maintainer_files();
 299    self_test();
 300    exit 0;
 301}
 302
 303if (-t STDIN && !@ARGV) {
 304    # We're talking to a terminal, but have no command line arguments.
 305    die "$P: missing patchfile or -f file - use --help if necessary\n";
 306}
 307
 308$output_multiline = 0 if ($output_separator ne ", ");
 309$output_rolestats = 1 if ($interactive);
 310$output_roles = 1 if ($output_rolestats);
 311
 312if ($sections || $letters ne "") {
 313    $sections = 1;
 314    $email = 0;
 315    $email_list = 0;
 316    $scm = 0;
 317    $status = 0;
 318    $subsystem = 0;
 319    $web = 0;
 320    $keywords = 0;
 
 321    $interactive = 0;
 322} else {
 323    my $selections = $email + $scm + $status + $subsystem + $web;
 324    if ($selections == 0) {
 325	die "$P:  Missing required option: email, scm, status, subsystem or web\n";
 326    }
 327}
 328
 329if ($email &&
 330    ($email_maintainer + $email_reviewer +
 331     $email_list + $email_subscriber_list +
 332     $email_git + $email_git_penguin_chiefs + $email_git_blame) == 0) {
 333    die "$P: Please select at least 1 email option\n";
 334}
 335
 336if ($tree && !top_of_kernel_tree($lk_path)) {
 337    die "$P: The current directory does not appear to be "
 338	. "a linux kernel source tree.\n";
 339}
 340
 341## Read MAINTAINERS for type/value pairs
 342
 343my @typevalue = ();
 344my %keyword_hash;
 345my @mfiles = ();
 346my @self_test_info = ();
 347
 348sub read_maintainer_file {
 349    my ($file) = @_;
 350
 351    open (my $maint, '<', "$file")
 352	or die "$P: Can't open MAINTAINERS file '$file': $!\n";
 353    my $i = 1;
 354    while (<$maint>) {
 355	my $line = $_;
 356	chomp $line;
 357
 358	if ($line =~ m/^([A-Z]):\s*(.*)/) {
 359	    my $type = $1;
 360	    my $value = $2;
 361
 362	    ##Filename pattern matching
 363	    if ($type eq "F" || $type eq "X") {
 364		$value =~ s@\.@\\\.@g;       ##Convert . to \.
 365		$value =~ s/\*/\.\*/g;       ##Convert * to .*
 366		$value =~ s/\?/\./g;         ##Convert ? to .
 367		##if pattern is a directory and it lacks a trailing slash, add one
 368		if ((-d $value)) {
 369		    $value =~ s@([^/])$@$1/@;
 370		}
 371	    } elsif ($type eq "K") {
 372		$keyword_hash{@typevalue} = $value;
 373	    }
 374	    push(@typevalue, "$type:$value");
 375	} elsif (!(/^\s*$/ || /^\s*\#/)) {
 376	    push(@typevalue, $line);
 377	}
 378	if (defined $self_test) {
 379	    push(@self_test_info, {file=>$file, linenr=>$i, line=>$line});
 380	}
 381	$i++;
 382    }
 383    close($maint);
 384}
 385
 386sub find_is_maintainer_file {
 387    my ($file) = $_;
 388    return if ($file !~ m@/MAINTAINERS$@);
 389    $file = $File::Find::name;
 390    return if (! -f $file);
 391    push(@mfiles, $file);
 392}
 393
 394sub find_ignore_git {
 395    return grep { $_ !~ /^\.git$/; } @_;
 396}
 397
 398read_all_maintainer_files();
 399
 400sub read_all_maintainer_files {
 401    my $path = "${lk_path}MAINTAINERS";
 402    if (defined $maintainer_path) {
 403	$path = $maintainer_path;
 404	# Perl Cookbook tilde expansion if necessary
 405	$path =~ s@^~([^/]*)@ $1 ? (getpwnam($1))[7] : ( $ENV{HOME} || $ENV{LOGDIR} || (getpwuid($<))[7])@ex;
 406    }
 407
 408    if (-d $path) {
 409	$path .= '/' if ($path !~ m@/$@);
 410	if ($find_maintainer_files) {
 411	    find( { wanted => \&find_is_maintainer_file,
 412		    preprocess => \&find_ignore_git,
 413		    no_chdir => 1,
 414		}, "$path");
 415	} else {
 416	    opendir(DIR, "$path") or die $!;
 417	    my @files = readdir(DIR);
 418	    closedir(DIR);
 419	    foreach my $file (@files) {
 420		push(@mfiles, "$path$file") if ($file !~ /^\./);
 421	    }
 422	}
 423    } elsif (-f "$path") {
 424	push(@mfiles, "$path");
 425    } else {
 426	die "$P: MAINTAINER file not found '$path'\n";
 427    }
 428    die "$P: No MAINTAINER files found in '$path'\n" if (scalar(@mfiles) == 0);
 429    foreach my $file (@mfiles) {
 430	read_maintainer_file("$file");
 431    }
 432}
 433
 434sub maintainers_in_file {
 435    my ($file) = @_;
 436
 437    return if ($file =~ m@\bMAINTAINERS$@);
 438
 439    if (-f $file && ($email_file_emails || $file =~ /\.yaml$/)) {
 440	open(my $f, '<', $file)
 441	    or die "$P: Can't open $file: $!\n";
 442	my $text = do { local($/) ; <$f> };
 443	close($f);
 444
 445	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;
 446	push(@file_emails, clean_file_emails(@poss_addr));
 447    }
 448}
 449
 450#
 451# Read mail address map
 452#
 453
 454my $mailmap;
 455
 456read_mailmap();
 457
 458sub read_mailmap {
 459    $mailmap = {
 460	names => {},
 461	addresses => {}
 462    };
 463
 464    return if (!$email_use_mailmap || !(-f "${lk_path}.mailmap"));
 465
 466    open(my $mailmap_file, '<', "${lk_path}.mailmap")
 467	or warn "$P: Can't open .mailmap: $!\n";
 468
 469    while (<$mailmap_file>) {
 470	s/#.*$//; #strip comments
 471	s/^\s+|\s+$//g; #trim
 472
 473	next if (/^\s*$/); #skip empty lines
 474	#entries have one of the following formats:
 475	# name1 <mail1>
 476	# <mail1> <mail2>
 477	# name1 <mail1> <mail2>
 478	# name1 <mail1> name2 <mail2>
 479	# (see man git-shortlog)
 480
 481	if (/^([^<]+)<([^>]+)>$/) {
 482	    my $real_name = $1;
 483	    my $address = $2;
 484
 485	    $real_name =~ s/\s+$//;
 486	    ($real_name, $address) = parse_email("$real_name <$address>");
 487	    $mailmap->{names}->{$address} = $real_name;
 488
 489	} elsif (/^<([^>]+)>\s*<([^>]+)>$/) {
 490	    my $real_address = $1;
 491	    my $wrong_address = $2;
 492
 493	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 494
 495	} elsif (/^(.+)<([^>]+)>\s*<([^>]+)>$/) {
 496	    my $real_name = $1;
 497	    my $real_address = $2;
 498	    my $wrong_address = $3;
 499
 500	    $real_name =~ s/\s+$//;
 501	    ($real_name, $real_address) =
 502		parse_email("$real_name <$real_address>");
 503	    $mailmap->{names}->{$wrong_address} = $real_name;
 504	    $mailmap->{addresses}->{$wrong_address} = $real_address;
 505
 506	} elsif (/^(.+)<([^>]+)>\s*(.+)\s*<([^>]+)>$/) {
 507	    my $real_name = $1;
 508	    my $real_address = $2;
 509	    my $wrong_name = $3;
 510	    my $wrong_address = $4;
 511
 512	    $real_name =~ s/\s+$//;
 513	    ($real_name, $real_address) =
 514		parse_email("$real_name <$real_address>");
 515
 516	    $wrong_name =~ s/\s+$//;
 517	    ($wrong_name, $wrong_address) =
 518		parse_email("$wrong_name <$wrong_address>");
 519
 520	    my $wrong_email = format_email($wrong_name, $wrong_address, 1);
 521	    $mailmap->{names}->{$wrong_email} = $real_name;
 522	    $mailmap->{addresses}->{$wrong_email} = $real_address;
 523	}
 524    }
 525    close($mailmap_file);
 526}
 527
 528## use the filenames on the command line or find the filenames in the patchfiles
 529
 530if (!@ARGV) {
 531    push(@ARGV, "&STDIN");
 532}
 533
 534foreach my $file (@ARGV) {
 535    if ($file ne "&STDIN") {
 536	$file = canonpath($file);
 537	##if $file is a directory and it lacks a trailing slash, add one
 538	if ((-d $file)) {
 539	    $file =~ s@([^/])$@$1/@;
 540	} elsif (!(-f $file)) {
 541	    die "$P: file '${file}' not found\n";
 542	}
 543    }
 544    if ($from_filename && (vcs_exists() && !vcs_file_exists($file))) {
 545	warn "$P: file '$file' not found in version control $!\n";
 546    }
 547    if ($from_filename || ($file ne "&STDIN" && vcs_file_exists($file))) {
 548	$file =~ s/^\Q${cur_path}\E//;	#strip any absolute path
 549	$file =~ s/^\Q${lk_path}\E//;	#or the path to the lk tree
 550	push(@files, $file);
 551	if ($file ne "MAINTAINERS" && -f $file && $keywords) {
 552	    open(my $f, '<', $file)
 553		or die "$P: Can't open $file: $!\n";
 554	    my $text = do { local($/) ; <$f> };
 555	    close($f);
 556	    if ($keywords) {
 557		foreach my $line (keys %keyword_hash) {
 558		    if ($text =~ m/$keyword_hash{$line}/x) {
 559			push(@keyword_tvi, $line);
 560		    }
 561		}
 562	    }
 563	}
 564    } else {
 565	my $file_cnt = @files;
 566	my $lastfile;
 567
 568	open(my $patch, "< $file")
 569	    or die "$P: Can't open $file: $!\n";
 570
 571	# We can check arbitrary information before the patch
 572	# like the commit message, mail headers, etc...
 573	# This allows us to match arbitrary keywords against any part
 574	# of a git format-patch generated file (subject tags, etc...)
 575
 576	my $patch_prefix = "";			#Parsing the intro
 577
 578	while (<$patch>) {
 579	    my $patch_line = $_;
 580	    if (m/^ mode change [0-7]+ => [0-7]+ (\S+)\s*$/) {
 581		my $filename = $1;
 582		push(@files, $filename);
 583	    } elsif (m/^rename (?:from|to) (\S+)\s*$/) {
 584		my $filename = $1;
 585		push(@files, $filename);
 586	    } elsif (m/^diff --git a\/(\S+) b\/(\S+)\s*$/) {
 587		my $filename1 = $1;
 588		my $filename2 = $2;
 589		push(@files, $filename1);
 590		push(@files, $filename2);
 591	    } elsif (m/^Fixes:\s+([0-9a-fA-F]{6,40})/) {
 592		push(@fixes, $1) if ($email_fixes);
 593	    } elsif (m/^\+\+\+\s+(\S+)/ or m/^---\s+(\S+)/) {
 594		my $filename = $1;
 595		$filename =~ s@^[^/]*/@@;
 596		$filename =~ s@\n@@;
 597		$lastfile = $filename;
 598		push(@files, $filename);
 599		$patch_prefix = "^[+-].*";	#Now parsing the actual patch
 600	    } elsif (m/^\@\@ -(\d+),(\d+)/) {
 601		if ($email_git_blame) {
 602		    push(@range, "$lastfile:$1:$2");
 603		}
 604	    } elsif ($keywords) {
 605		foreach my $line (keys %keyword_hash) {
 606		    if ($patch_line =~ m/${patch_prefix}$keyword_hash{$line}/x) {
 607			push(@keyword_tvi, $line);
 608		    }
 609		}
 610	    }
 611	}
 612	close($patch);
 613
 614	if ($file_cnt == @files) {
 615	    warn "$P: file '${file}' doesn't appear to be a patch.  "
 616		. "Add -f to options?\n";
 617	}
 618	@files = sort_and_uniq(@files);
 619    }
 620}
 621
 622@file_emails = uniq(@file_emails);
 623@fixes = uniq(@fixes);
 624
 625my %email_hash_name;
 626my %email_hash_address;
 627my @email_to = ();
 628my %hash_list_to;
 629my @list_to = ();
 630my @scm = ();
 631my @web = ();
 632my @subsystem = ();
 633my @status = ();
 634my %deduplicate_name_hash = ();
 635my %deduplicate_address_hash = ();
 636
 637my @maintainers = get_maintainers();
 638if (@maintainers) {
 639    @maintainers = merge_email(@maintainers);
 640    output(@maintainers);
 641}
 642
 643if ($scm) {
 644    @scm = uniq(@scm);
 645    output(@scm);
 646}
 647
 648if ($status) {
 649    @status = uniq(@status);
 650    output(@status);
 651}
 652
 653if ($subsystem) {
 654    @subsystem = uniq(@subsystem);
 655    output(@subsystem);
 656}
 657
 658if ($web) {
 659    @web = uniq(@web);
 660    output(@web);
 661}
 662
 663exit($exit);
 664
 665sub self_test {
 666    my @lsfiles = ();
 667    my @good_links = ();
 668    my @bad_links = ();
 669    my @section_headers = ();
 670    my $index = 0;
 671
 672    @lsfiles = vcs_list_files($lk_path);
 673
 674    for my $x (@self_test_info) {
 675	$index++;
 676
 677	## Section header duplication and missing section content
 678	if (($self_test eq "" || $self_test =~ /\bsections\b/) &&
 679	    $x->{line} =~ /^\S[^:]/ &&
 680	    defined $self_test_info[$index] &&
 681	    $self_test_info[$index]->{line} =~ /^([A-Z]):\s*\S/) {
 682	    my $has_S = 0;
 683	    my $has_F = 0;
 684	    my $has_ML = 0;
 685	    my $status = "";
 686	    if (grep(m@^\Q$x->{line}\E@, @section_headers)) {
 687		print("$x->{file}:$x->{linenr}: warning: duplicate section header\t$x->{line}\n");
 688	    } else {
 689		push(@section_headers, $x->{line});
 690	    }
 691	    my $nextline = $index;
 692	    while (defined $self_test_info[$nextline] &&
 693		   $self_test_info[$nextline]->{line} =~ /^([A-Z]):\s*(\S.*)/) {
 694		my $type = $1;
 695		my $value = $2;
 696		if ($type eq "S") {
 697		    $has_S = 1;
 698		    $status = $value;
 699		} elsif ($type eq "F" || $type eq "N") {
 700		    $has_F = 1;
 701		} elsif ($type eq "M" || $type eq "R" || $type eq "L") {
 702		    $has_ML = 1;
 703		}
 704		$nextline++;
 705	    }
 706	    if (!$has_ML && $status !~ /orphan|obsolete/i) {
 707		print("$x->{file}:$x->{linenr}: warning: section without email address\t$x->{line}\n");
 708	    }
 709	    if (!$has_S) {
 710		print("$x->{file}:$x->{linenr}: warning: section without status \t$x->{line}\n");
 711	    }
 712	    if (!$has_F) {
 713		print("$x->{file}:$x->{linenr}: warning: section without file pattern\t$x->{line}\n");
 714	    }
 715	}
 716
 717	next if ($x->{line} !~ /^([A-Z]):\s*(.*)/);
 718
 719	my $type = $1;
 720	my $value = $2;
 721
 722	## Filename pattern matching
 723	if (($type eq "F" || $type eq "X") &&
 724	    ($self_test eq "" || $self_test =~ /\bpatterns\b/)) {
 725	    $value =~ s@\.@\\\.@g;       ##Convert . to \.
 726	    $value =~ s/\*/\.\*/g;       ##Convert * to .*
 727	    $value =~ s/\?/\./g;         ##Convert ? to .
 728	    ##if pattern is a directory and it lacks a trailing slash, add one
 729	    if ((-d $value)) {
 730		$value =~ s@([^/])$@$1/@;
 731	    }
 732	    if (!grep(m@^$value@, @lsfiles)) {
 733		print("$x->{file}:$x->{linenr}: warning: no file matches\t$x->{line}\n");
 734	    }
 735
 736	## Link reachability
 737	} elsif (($type eq "W" || $type eq "Q" || $type eq "B") &&
 738		 $value =~ /^https?:/ &&
 739		 ($self_test eq "" || $self_test =~ /\blinks\b/)) {
 740	    next if (grep(m@^\Q$value\E$@, @good_links));
 741	    my $isbad = 0;
 742	    if (grep(m@^\Q$value\E$@, @bad_links)) {
 743	        $isbad = 1;
 744	    } else {
 745		my $output = `wget --spider -q --no-check-certificate --timeout 10 --tries 1 $value`;
 746		if ($? == 0) {
 747		    push(@good_links, $value);
 748		} else {
 749		    push(@bad_links, $value);
 750		    $isbad = 1;
 751		}
 752	    }
 753	    if ($isbad) {
 754	        print("$x->{file}:$x->{linenr}: warning: possible bad link\t$x->{line}\n");
 755	    }
 756
 757	## SCM reachability
 758	} elsif ($type eq "T" &&
 759		 ($self_test eq "" || $self_test =~ /\bscm\b/)) {
 760	    next if (grep(m@^\Q$value\E$@, @good_links));
 761	    my $isbad = 0;
 762	    if (grep(m@^\Q$value\E$@, @bad_links)) {
 763	        $isbad = 1;
 764            } elsif ($value !~ /^(?:git|quilt|hg)\s+\S/) {
 765		print("$x->{file}:$x->{linenr}: warning: malformed entry\t$x->{line}\n");
 766	    } elsif ($value =~ /^git\s+(\S+)(\s+([^\(]+\S+))?/) {
 767		my $url = $1;
 768		my $branch = "";
 769		$branch = $3 if $3;
 770		my $output = `git ls-remote --exit-code -h "$url" $branch > /dev/null 2>&1`;
 771		if ($? == 0) {
 772		    push(@good_links, $value);
 773		} else {
 774		    push(@bad_links, $value);
 775		    $isbad = 1;
 776		}
 777	    } elsif ($value =~ /^(?:quilt|hg)\s+(https?:\S+)/) {
 778		my $url = $1;
 779		my $output = `wget --spider -q --no-check-certificate --timeout 10 --tries 1 $url`;
 780		if ($? == 0) {
 781		    push(@good_links, $value);
 782		} else {
 783		    push(@bad_links, $value);
 784		    $isbad = 1;
 785		}
 786	    }
 787	    if ($isbad) {
 788		print("$x->{file}:$x->{linenr}: warning: possible bad link\t$x->{line}\n");
 789	    }
 790	}
 791    }
 792}
 793
 794sub ignore_email_address {
 795    my ($address) = @_;
 796
 797    foreach my $ignore (@ignore_emails) {
 798	return 1 if ($ignore eq $address);
 799    }
 800
 801    return 0;
 802}
 803
 804sub range_is_maintained {
 805    my ($start, $end) = @_;
 806
 807    for (my $i = $start; $i < $end; $i++) {
 808	my $line = $typevalue[$i];
 809	if ($line =~ m/^([A-Z]):\s*(.*)/) {
 810	    my $type = $1;
 811	    my $value = $2;
 812	    if ($type eq 'S') {
 813		if ($value =~ /(maintain|support)/i) {
 814		    return 1;
 815		}
 816	    }
 817	}
 818    }
 819    return 0;
 820}
 821
 822sub range_has_maintainer {
 823    my ($start, $end) = @_;
 824
 825    for (my $i = $start; $i < $end; $i++) {
 826	my $line = $typevalue[$i];
 827	if ($line =~ m/^([A-Z]):\s*(.*)/) {
 828	    my $type = $1;
 829	    my $value = $2;
 830	    if ($type eq 'M') {
 831		return 1;
 832	    }
 833	}
 834    }
 835    return 0;
 836}
 837
 838sub get_maintainers {
 839    %email_hash_name = ();
 840    %email_hash_address = ();
 841    %commit_author_hash = ();
 842    %commit_signer_hash = ();
 843    @email_to = ();
 844    %hash_list_to = ();
 845    @list_to = ();
 846    @scm = ();
 847    @web = ();
 848    @subsystem = ();
 849    @status = ();
 850    %deduplicate_name_hash = ();
 851    %deduplicate_address_hash = ();
 852    if ($email_git_all_signature_types) {
 853	$signature_pattern = "(.+?)[Bb][Yy]:";
 854    } else {
 855	$signature_pattern = "\(" . join("|", @signature_tags) . "\)";
 856    }
 857
 858    # Find responsible parties
 859
 860    my %exact_pattern_match_hash = ();
 861
 862    foreach my $file (@files) {
 863
 864	my %hash;
 865	my $tvi = find_first_section();
 866	while ($tvi < @typevalue) {
 867	    my $start = find_starting_index($tvi);
 868	    my $end = find_ending_index($tvi);
 869	    my $exclude = 0;
 870	    my $i;
 871
 872	    #Do not match excluded file patterns
 873
 874	    for ($i = $start; $i < $end; $i++) {
 875		my $line = $typevalue[$i];
 876		if ($line =~ m/^([A-Z]):\s*(.*)/) {
 877		    my $type = $1;
 878		    my $value = $2;
 879		    if ($type eq 'X') {
 880			if (file_match_pattern($file, $value)) {
 881			    $exclude = 1;
 882			    last;
 883			}
 884		    }
 885		}
 886	    }
 887
 888	    if (!$exclude) {
 889		for ($i = $start; $i < $end; $i++) {
 890		    my $line = $typevalue[$i];
 891		    if ($line =~ m/^([A-Z]):\s*(.*)/) {
 892			my $type = $1;
 893			my $value = $2;
 894			if ($type eq 'F') {
 895			    if (file_match_pattern($file, $value)) {
 896				my $value_pd = ($value =~ tr@/@@);
 897				my $file_pd = ($file  =~ tr@/@@);
 898				$value_pd++ if (substr($value,-1,1) ne "/");
 899				$value_pd = -1 if ($value =~ /^\.\*/);
 900				if ($value_pd >= $file_pd &&
 901				    range_is_maintained($start, $end) &&
 902				    range_has_maintainer($start, $end)) {
 903				    $exact_pattern_match_hash{$file} = 1;
 904				}
 905				if ($pattern_depth == 0 ||
 906				    (($file_pd - $value_pd) < $pattern_depth)) {
 907				    $hash{$tvi} = $value_pd;
 908				}
 909			    }
 910			} elsif ($type eq 'N') {
 911			    if ($file =~ m/$value/x) {
 912				$hash{$tvi} = 0;
 913			    }
 914			}
 915		    }
 916		}
 917	    }
 918	    $tvi = $end + 1;
 919	}
 920
 921	foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
 922	    add_categories($line);
 923	    if ($sections) {
 924		my $i;
 925		my $start = find_starting_index($line);
 926		my $end = find_ending_index($line);
 927		for ($i = $start; $i < $end; $i++) {
 928		    my $line = $typevalue[$i];
 929		    if ($line =~ /^[FX]:/) {		##Restore file patterns
 930			$line =~ s/([^\\])\.([^\*])/$1\?$2/g;
 931			$line =~ s/([^\\])\.$/$1\?/g;	##Convert . back to ?
 932			$line =~ s/\\\./\./g;       	##Convert \. to .
 933			$line =~ s/\.\*/\*/g;       	##Convert .* to *
 934		    }
 935		    my $count = $line =~ s/^([A-Z]):/$1:\t/g;
 936		    if ($letters eq "" || (!$count || $letters =~ /$1/i)) {
 937			print("$line\n");
 938		    }
 939		}
 940		print("\n");
 941	    }
 942	}
 943
 944	maintainers_in_file($file);
 945    }
 946
 947    if ($keywords) {
 948	@keyword_tvi = sort_and_uniq(@keyword_tvi);
 949	foreach my $line (@keyword_tvi) {
 950	    add_categories($line);
 951	}
 952    }
 953
 954    foreach my $email (@email_to, @list_to) {
 955	$email->[0] = deduplicate_email($email->[0]);
 956    }
 957
 958    foreach my $file (@files) {
 959	if ($email &&
 960	    ($email_git ||
 961	     ($email_git_fallback &&
 962	      $file !~ /MAINTAINERS$/ &&
 963	      !$exact_pattern_match_hash{$file}))) {
 964	    vcs_file_signoffs($file);
 965	}
 966	if ($email && $email_git_blame) {
 967	    vcs_file_blame($file);
 968	}
 969    }
 970
 971    if ($email) {
 972	foreach my $chief (@penguin_chief) {
 973	    if ($chief =~ m/^(.*):(.*)/) {
 974		my $email_address;
 975
 976		$email_address = format_email($1, $2, $email_usename);
 977		if ($email_git_penguin_chiefs) {
 978		    push(@email_to, [$email_address, 'chief penguin']);
 979		} else {
 980		    @email_to = grep($_->[0] !~ /${email_address}/, @email_to);
 981		}
 982	    }
 983	}
 984
 985	foreach my $email (@file_emails) {
 
 986	    my ($name, $address) = parse_email($email);
 987
 988	    my $tmp_email = format_email($name, $address, $email_usename);
 989	    push_email_address($tmp_email, '');
 990	    add_role($tmp_email, 'in file');
 991	}
 992    }
 993
 994    foreach my $fix (@fixes) {
 995	vcs_add_commit_signers($fix, "blamed_fixes");
 996    }
 997
 998    my @to = ();
 999    if ($email || $email_list) {
1000	if ($email) {
1001	    @to = (@to, @email_to);
1002	}
1003	if ($email_list) {
1004	    @to = (@to, @list_to);
1005	}
1006    }
1007
1008    if ($interactive) {
1009	@to = interactive_get_maintainers(\@to);
1010    }
1011
1012    return @to;
1013}
1014
1015sub file_match_pattern {
1016    my ($file, $pattern) = @_;
1017    if (substr($pattern, -1) eq "/") {
1018	if ($file =~ m@^$pattern@) {
1019	    return 1;
1020	}
1021    } else {
1022	if ($file =~ m@^$pattern@) {
1023	    my $s1 = ($file =~ tr@/@@);
1024	    my $s2 = ($pattern =~ tr@/@@);
1025	    if ($s1 == $s2) {
1026		return 1;
1027	    }
1028	}
1029    }
1030    return 0;
1031}
1032
1033sub usage {
1034    print <<EOT;
1035usage: $P [options] patchfile
1036       $P [options] -f file|directory
1037version: $V
1038
1039MAINTAINER field selection options:
1040  --email => print email address(es) if any
1041    --git => include recent git \*-by: signers
1042    --git-all-signature-types => include signers regardless of signature type
1043        or use only ${signature_pattern} signers (default: $email_git_all_signature_types)
1044    --git-fallback => use git when no exact MAINTAINERS pattern (default: $email_git_fallback)
1045    --git-chief-penguins => include ${penguin_chiefs}
1046    --git-min-signatures => number of signatures required (default: $email_git_min_signatures)
1047    --git-max-maintainers => maximum maintainers to add (default: $email_git_max_maintainers)
1048    --git-min-percent => minimum percentage of commits required (default: $email_git_min_percent)
1049    --git-blame => use git blame to find modified commits for patch or file
1050    --git-blame-signatures => when used with --git-blame, also include all commit signers
1051    --git-since => git history to use (default: $email_git_since)
1052    --hg-since => hg history to use (default: $email_hg_since)
1053    --interactive => display a menu (mostly useful if used with the --git option)
1054    --m => include maintainer(s) if any
1055    --r => include reviewer(s) if any
1056    --n => include name 'Full Name <addr\@domain.tld>'
1057    --l => include list(s) if any
1058    --moderated => include moderated lists(s) if any (default: true)
1059    --s => include subscriber only list(s) if any (default: false)
1060    --remove-duplicates => minimize duplicate email names/addresses
1061    --roles => show roles (status:subsystem, git-signer, list, etc...)
1062    --rolestats => show roles and statistics (commits/total_commits, %)
1063    --file-emails => add email addresses found in -f file (default: 0 (off))
1064    --fixes => for patches, add signatures of commits with 'Fixes: <commit>' (default: 1 (on))
1065  --scm => print SCM tree(s) if any
1066  --status => print status if any
1067  --subsystem => print subsystem name if any
1068  --web => print website(s) if any
1069
1070Output type options:
1071  --separator [, ] => separator for multiple entries on 1 line
1072    using --separator also sets --nomultiline if --separator is not [, ]
1073  --multiline => print 1 entry per line
1074
1075Other options:
1076  --pattern-depth => Number of pattern directory traversals (default: 0 (all))
1077  --keywords => scan patch for keywords (default: $keywords)
 
1078  --sections => print all of the subsystem sections with pattern matches
1079  --letters => print all matching 'letter' types from all matching sections
1080  --mailmap => use .mailmap file (default: $email_use_mailmap)
1081  --no-tree => run without a kernel tree
1082  --self-test => show potential issues with MAINTAINERS file content
1083  --version => show version
1084  --help => show this help information
1085
1086Default options:
1087  [--email --tree --nogit --git-fallback --m --r --n --l --multiline
1088   --pattern-depth=0 --remove-duplicates --rolestats]
1089
1090Notes:
1091  Using "-f directory" may give unexpected results:
1092      Used with "--git", git signators for _all_ files in and below
1093          directory are examined as git recurses directories.
1094          Any specified X: (exclude) pattern matches are _not_ ignored.
1095      Used with "--nogit", directory is used as a pattern match,
1096          no individual file within the directory or subdirectory
1097          is matched.
1098      Used with "--git-blame", does not iterate all files in directory
1099  Using "--git-blame" is slow and may add old committers and authors
1100      that are no longer active maintainers to the output.
1101  Using "--roles" or "--rolestats" with git send-email --cc-cmd or any
1102      other automated tools that expect only ["name"] <email address>
1103      may not work because of additional output after <email address>.
1104  Using "--rolestats" and "--git-blame" shows the #/total=% commits,
1105      not the percentage of the entire file authored.  # of commits is
1106      not a good measure of amount of code authored.  1 major commit may
1107      contain a thousand lines, 5 trivial commits may modify a single line.
1108  If git is not installed, but mercurial (hg) is installed and an .hg
1109      repository exists, the following options apply to mercurial:
1110          --git,
1111          --git-min-signatures, --git-max-maintainers, --git-min-percent, and
1112          --git-blame
1113      Use --hg-since not --git-since to control date selection
1114  File ".get_maintainer.conf", if it exists in the linux kernel source root
1115      directory, can change whatever get_maintainer defaults are desired.
1116      Entries in this file can be any command line argument.
1117      This file is prepended to any additional command line arguments.
1118      Multiple lines and # comments are allowed.
1119  Most options have both positive and negative forms.
1120      The negative forms for --<foo> are --no<foo> and --no-<foo>.
1121
1122EOT
1123}
1124
1125sub top_of_kernel_tree {
1126    my ($lk_path) = @_;
1127
1128    if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
1129	$lk_path .= "/";
1130    }
1131    if (   (-f "${lk_path}COPYING")
1132	&& (-f "${lk_path}CREDITS")
1133	&& (-f "${lk_path}Kbuild")
1134	&& (-e "${lk_path}MAINTAINERS")
1135	&& (-f "${lk_path}Makefile")
1136	&& (-f "${lk_path}README")
1137	&& (-d "${lk_path}Documentation")
1138	&& (-d "${lk_path}arch")
1139	&& (-d "${lk_path}include")
1140	&& (-d "${lk_path}drivers")
1141	&& (-d "${lk_path}fs")
1142	&& (-d "${lk_path}init")
1143	&& (-d "${lk_path}ipc")
1144	&& (-d "${lk_path}kernel")
1145	&& (-d "${lk_path}lib")
1146	&& (-d "${lk_path}scripts")) {
1147	return 1;
1148    }
1149    return 0;
1150}
1151
 
 
 
 
 
 
 
 
 
 
 
1152sub parse_email {
1153    my ($formatted_email) = @_;
1154
1155    my $name = "";
1156    my $address = "";
1157
1158    if ($formatted_email =~ /^([^<]+)<(.+\@.*)>.*$/) {
1159	$name = $1;
1160	$address = $2;
1161    } elsif ($formatted_email =~ /^\s*<(.+\@\S*)>.*$/) {
1162	$address = $1;
1163    } elsif ($formatted_email =~ /^(.+\@\S*).*$/) {
1164	$address = $1;
1165    }
1166
1167    $name =~ s/^\s+|\s+$//g;
1168    $name =~ s/^\"|\"$//g;
 
1169    $address =~ s/^\s+|\s+$//g;
1170
1171    if ($name =~ /[^\w \-]/i) {  	 ##has "must quote" chars
1172	$name =~ s/(?<!\\)"/\\"/g;       ##escape quotes
1173	$name = "\"$name\"";
1174    }
1175
1176    return ($name, $address);
1177}
1178
1179sub format_email {
1180    my ($name, $address, $usename) = @_;
1181
1182    my $formatted_email;
1183
1184    $name =~ s/^\s+|\s+$//g;
1185    $name =~ s/^\"|\"$//g;
 
1186    $address =~ s/^\s+|\s+$//g;
1187
1188    if ($name =~ /[^\w \-]/i) {          ##has "must quote" chars
1189	$name =~ s/(?<!\\)"/\\"/g;       ##escape quotes
1190	$name = "\"$name\"";
1191    }
1192
1193    if ($usename) {
1194	if ("$name" eq "") {
1195	    $formatted_email = "$address";
1196	} else {
1197	    $formatted_email = "$name <$address>";
1198	}
1199    } else {
1200	$formatted_email = $address;
1201    }
1202
1203    return $formatted_email;
1204}
1205
1206sub find_first_section {
1207    my $index = 0;
1208
1209    while ($index < @typevalue) {
1210	my $tv = $typevalue[$index];
1211	if (($tv =~ m/^([A-Z]):\s*(.*)/)) {
1212	    last;
1213	}
1214	$index++;
1215    }
1216
1217    return $index;
1218}
1219
1220sub find_starting_index {
1221    my ($index) = @_;
1222
1223    while ($index > 0) {
1224	my $tv = $typevalue[$index];
1225	if (!($tv =~ m/^([A-Z]):\s*(.*)/)) {
1226	    last;
1227	}
1228	$index--;
1229    }
1230
1231    return $index;
1232}
1233
1234sub find_ending_index {
1235    my ($index) = @_;
1236
1237    while ($index < @typevalue) {
1238	my $tv = $typevalue[$index];
1239	if (!($tv =~ m/^([A-Z]):\s*(.*)/)) {
1240	    last;
1241	}
1242	$index++;
1243    }
1244
1245    return $index;
1246}
1247
1248sub get_subsystem_name {
1249    my ($index) = @_;
1250
1251    my $start = find_starting_index($index);
1252
1253    my $subsystem = $typevalue[$start];
1254    if ($output_section_maxlen && length($subsystem) > $output_section_maxlen) {
1255	$subsystem = substr($subsystem, 0, $output_section_maxlen - 3);
1256	$subsystem =~ s/\s*$//;
1257	$subsystem = $subsystem . "...";
1258    }
1259    return $subsystem;
1260}
1261
1262sub get_maintainer_role {
1263    my ($index) = @_;
1264
1265    my $i;
1266    my $start = find_starting_index($index);
1267    my $end = find_ending_index($index);
1268
1269    my $role = "unknown";
1270    my $subsystem = get_subsystem_name($index);
1271
1272    for ($i = $start + 1; $i < $end; $i++) {
1273	my $tv = $typevalue[$i];
1274	if ($tv =~ m/^([A-Z]):\s*(.*)/) {
1275	    my $ptype = $1;
1276	    my $pvalue = $2;
1277	    if ($ptype eq "S") {
1278		$role = $pvalue;
1279	    }
1280	}
1281    }
1282
1283    $role = lc($role);
1284    if      ($role eq "supported") {
1285	$role = "supporter";
1286    } elsif ($role eq "maintained") {
1287	$role = "maintainer";
1288    } elsif ($role eq "odd fixes") {
1289	$role = "odd fixer";
1290    } elsif ($role eq "orphan") {
1291	$role = "orphan minder";
1292    } elsif ($role eq "obsolete") {
1293	$role = "obsolete minder";
1294    } elsif ($role eq "buried alive in reporters") {
1295	$role = "chief penguin";
1296    }
1297
1298    return $role . ":" . $subsystem;
1299}
1300
1301sub get_list_role {
1302    my ($index) = @_;
1303
1304    my $subsystem = get_subsystem_name($index);
1305
1306    if ($subsystem eq "THE REST") {
1307	$subsystem = "";
1308    }
1309
1310    return $subsystem;
1311}
1312
1313sub add_categories {
1314    my ($index) = @_;
1315
1316    my $i;
1317    my $start = find_starting_index($index);
1318    my $end = find_ending_index($index);
1319
1320    push(@subsystem, $typevalue[$start]);
1321
1322    for ($i = $start + 1; $i < $end; $i++) {
1323	my $tv = $typevalue[$i];
1324	if ($tv =~ m/^([A-Z]):\s*(.*)/) {
1325	    my $ptype = $1;
1326	    my $pvalue = $2;
1327	    if ($ptype eq "L") {
1328		my $list_address = $pvalue;
1329		my $list_additional = "";
1330		my $list_role = get_list_role($i);
1331
1332		if ($list_role ne "") {
1333		    $list_role = ":" . $list_role;
1334		}
1335		if ($list_address =~ m/([^\s]+)\s+(.*)$/) {
1336		    $list_address = $1;
1337		    $list_additional = $2;
1338		}
1339		if ($list_additional =~ m/subscribers-only/) {
1340		    if ($email_subscriber_list) {
1341			if (!$hash_list_to{lc($list_address)}) {
1342			    $hash_list_to{lc($list_address)} = 1;
1343			    push(@list_to, [$list_address,
1344					    "subscriber list${list_role}"]);
1345			}
1346		    }
1347		} else {
1348		    if ($email_list) {
1349			if (!$hash_list_to{lc($list_address)}) {
1350			    if ($list_additional =~ m/moderated/) {
1351				if ($email_moderated_list) {
1352				    $hash_list_to{lc($list_address)} = 1;
1353				    push(@list_to, [$list_address,
1354						    "moderated list${list_role}"]);
1355				}
1356			    } else {
1357				$hash_list_to{lc($list_address)} = 1;
1358				push(@list_to, [$list_address,
1359						"open list${list_role}"]);
1360			    }
1361			}
1362		    }
1363		}
1364	    } elsif ($ptype eq "M") {
1365		if ($email_maintainer) {
1366		    my $role = get_maintainer_role($i);
1367		    push_email_addresses($pvalue, $role);
1368		}
1369	    } elsif ($ptype eq "R") {
1370		if ($email_reviewer) {
1371		    my $subsystem = get_subsystem_name($i);
1372		    push_email_addresses($pvalue, "reviewer:$subsystem");
1373		}
1374	    } elsif ($ptype eq "T") {
1375		push(@scm, $pvalue);
1376	    } elsif ($ptype eq "W") {
1377		push(@web, $pvalue);
1378	    } elsif ($ptype eq "S") {
1379		push(@status, $pvalue);
1380	    }
1381	}
1382    }
1383}
1384
1385sub email_inuse {
1386    my ($name, $address) = @_;
1387
1388    return 1 if (($name eq "") && ($address eq ""));
1389    return 1 if (($name ne "") && exists($email_hash_name{lc($name)}));
1390    return 1 if (($address ne "") && exists($email_hash_address{lc($address)}));
1391
1392    return 0;
1393}
1394
1395sub push_email_address {
1396    my ($line, $role) = @_;
1397
1398    my ($name, $address) = parse_email($line);
1399
1400    if ($address eq "") {
1401	return 0;
1402    }
1403
1404    if (!$email_remove_duplicates) {
1405	push(@email_to, [format_email($name, $address, $email_usename), $role]);
1406    } elsif (!email_inuse($name, $address)) {
1407	push(@email_to, [format_email($name, $address, $email_usename), $role]);
1408	$email_hash_name{lc($name)}++ if ($name ne "");
1409	$email_hash_address{lc($address)}++;
1410    }
1411
1412    return 1;
1413}
1414
1415sub push_email_addresses {
1416    my ($address, $role) = @_;
1417
1418    my @address_list = ();
1419
1420    if (rfc822_valid($address)) {
1421	push_email_address($address, $role);
1422    } elsif (@address_list = rfc822_validlist($address)) {
1423	my $array_count = shift(@address_list);
1424	while (my $entry = shift(@address_list)) {
1425	    push_email_address($entry, $role);
1426	}
1427    } else {
1428	if (!push_email_address($address, $role)) {
1429	    warn("Invalid MAINTAINERS address: '" . $address . "'\n");
1430	}
1431    }
1432}
1433
1434sub add_role {
1435    my ($line, $role) = @_;
1436
1437    my ($name, $address) = parse_email($line);
1438    my $email = format_email($name, $address, $email_usename);
1439
1440    foreach my $entry (@email_to) {
1441	if ($email_remove_duplicates) {
1442	    my ($entry_name, $entry_address) = parse_email($entry->[0]);
1443	    if (($name eq $entry_name || $address eq $entry_address)
1444		&& ($role eq "" || !($entry->[1] =~ m/$role/))
1445	    ) {
1446		if ($entry->[1] eq "") {
1447		    $entry->[1] = "$role";
1448		} else {
1449		    $entry->[1] = "$entry->[1],$role";
1450		}
1451	    }
1452	} else {
1453	    if ($email eq $entry->[0]
1454		&& ($role eq "" || !($entry->[1] =~ m/$role/))
1455	    ) {
1456		if ($entry->[1] eq "") {
1457		    $entry->[1] = "$role";
1458		} else {
1459		    $entry->[1] = "$entry->[1],$role";
1460		}
1461	    }
1462	}
1463    }
1464}
1465
1466sub which {
1467    my ($bin) = @_;
1468
1469    foreach my $path (split(/:/, $ENV{PATH})) {
1470	if (-e "$path/$bin") {
1471	    return "$path/$bin";
1472	}
1473    }
1474
1475    return "";
1476}
1477
1478sub which_conf {
1479    my ($conf) = @_;
1480
1481    foreach my $path (split(/:/, ".:$ENV{HOME}:.scripts")) {
1482	if (-e "$path/$conf") {
1483	    return "$path/$conf";
1484	}
1485    }
1486
1487    return "";
1488}
1489
1490sub mailmap_email {
1491    my ($line) = @_;
1492
1493    my ($name, $address) = parse_email($line);
1494    my $email = format_email($name, $address, 1);
1495    my $real_name = $name;
1496    my $real_address = $address;
1497
1498    if (exists $mailmap->{names}->{$email} ||
1499	exists $mailmap->{addresses}->{$email}) {
1500	if (exists $mailmap->{names}->{$email}) {
1501	    $real_name = $mailmap->{names}->{$email};
1502	}
1503	if (exists $mailmap->{addresses}->{$email}) {
1504	    $real_address = $mailmap->{addresses}->{$email};
1505	}
1506    } else {
1507	if (exists $mailmap->{names}->{$address}) {
1508	    $real_name = $mailmap->{names}->{$address};
1509	}
1510	if (exists $mailmap->{addresses}->{$address}) {
1511	    $real_address = $mailmap->{addresses}->{$address};
1512	}
1513    }
1514    return format_email($real_name, $real_address, 1);
1515}
1516
1517sub mailmap {
1518    my (@addresses) = @_;
1519
1520    my @mapped_emails = ();
1521    foreach my $line (@addresses) {
1522	push(@mapped_emails, mailmap_email($line));
1523    }
1524    merge_by_realname(@mapped_emails) if ($email_use_mailmap);
1525    return @mapped_emails;
1526}
1527
1528sub merge_by_realname {
1529    my %address_map;
1530    my (@emails) = @_;
1531
1532    foreach my $email (@emails) {
1533	my ($name, $address) = parse_email($email);
1534	if (exists $address_map{$name}) {
1535	    $address = $address_map{$name};
1536	    $email = format_email($name, $address, 1);
1537	} else {
1538	    $address_map{$name} = $address;
1539	}
1540    }
1541}
1542
1543sub git_execute_cmd {
1544    my ($cmd) = @_;
1545    my @lines = ();
1546
1547    my $output = `$cmd`;
1548    $output =~ s/^\s*//gm;
1549    @lines = split("\n", $output);
1550
1551    return @lines;
1552}
1553
1554sub hg_execute_cmd {
1555    my ($cmd) = @_;
1556    my @lines = ();
1557
1558    my $output = `$cmd`;
1559    @lines = split("\n", $output);
1560
1561    return @lines;
1562}
1563
1564sub extract_formatted_signatures {
1565    my (@signature_lines) = @_;
1566
1567    my @type = @signature_lines;
1568
1569    s/\s*(.*):.*/$1/ for (@type);
1570
1571    # cut -f2- -d":"
1572    s/\s*.*:\s*(.+)\s*/$1/ for (@signature_lines);
1573
1574## Reformat email addresses (with names) to avoid badly written signatures
1575
1576    foreach my $signer (@signature_lines) {
1577	$signer = deduplicate_email($signer);
1578    }
1579
1580    return (\@type, \@signature_lines);
1581}
1582
1583sub vcs_find_signers {
1584    my ($cmd, $file) = @_;
1585    my $commits;
1586    my @lines = ();
1587    my @signatures = ();
1588    my @authors = ();
1589    my @stats = ();
1590
1591    @lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
1592
1593    my $pattern = $VCS_cmds{"commit_pattern"};
1594    my $author_pattern = $VCS_cmds{"author_pattern"};
1595    my $stat_pattern = $VCS_cmds{"stat_pattern"};
1596
1597    $stat_pattern =~ s/(\$\w+)/$1/eeg;		#interpolate $stat_pattern
1598
1599    $commits = grep(/$pattern/, @lines);	# of commits
1600
1601    @authors = grep(/$author_pattern/, @lines);
1602    @signatures = grep(/^[ \t]*${signature_pattern}.*\@.*$/, @lines);
1603    @stats = grep(/$stat_pattern/, @lines);
1604
1605#    print("stats: <@stats>\n");
1606
1607    return (0, \@signatures, \@authors, \@stats) if !@signatures;
1608
1609    save_commits_by_author(@lines) if ($interactive);
1610    save_commits_by_signer(@lines) if ($interactive);
1611
1612    if (!$email_git_penguin_chiefs) {
1613	@signatures = grep(!/${penguin_chiefs}/i, @signatures);
1614    }
1615
1616    my ($author_ref, $authors_ref) = extract_formatted_signatures(@authors);
1617    my ($types_ref, $signers_ref) = extract_formatted_signatures(@signatures);
1618
1619    return ($commits, $signers_ref, $authors_ref, \@stats);
1620}
1621
1622sub vcs_find_author {
1623    my ($cmd) = @_;
1624    my @lines = ();
1625
1626    @lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
1627
1628    if (!$email_git_penguin_chiefs) {
1629	@lines = grep(!/${penguin_chiefs}/i, @lines);
1630    }
1631
1632    return @lines if !@lines;
1633
1634    my @authors = ();
1635    foreach my $line (@lines) {
1636	if ($line =~ m/$VCS_cmds{"author_pattern"}/) {
1637	    my $author = $1;
1638	    my ($name, $address) = parse_email($author);
1639	    $author = format_email($name, $address, 1);
1640	    push(@authors, $author);
1641	}
1642    }
1643
1644    save_commits_by_author(@lines) if ($interactive);
1645    save_commits_by_signer(@lines) if ($interactive);
1646
1647    return @authors;
1648}
1649
1650sub vcs_save_commits {
1651    my ($cmd) = @_;
1652    my @lines = ();
1653    my @commits = ();
1654
1655    @lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
1656
1657    foreach my $line (@lines) {
1658	if ($line =~ m/$VCS_cmds{"blame_commit_pattern"}/) {
1659	    push(@commits, $1);
1660	}
1661    }
1662
1663    return @commits;
1664}
1665
1666sub vcs_blame {
1667    my ($file) = @_;
1668    my $cmd;
1669    my @commits = ();
1670
1671    return @commits if (!(-f $file));
1672
1673    if (@range && $VCS_cmds{"blame_range_cmd"} eq "") {
1674	my @all_commits = ();
1675
1676	$cmd = $VCS_cmds{"blame_file_cmd"};
1677	$cmd =~ s/(\$\w+)/$1/eeg;		#interpolate $cmd
1678	@all_commits = vcs_save_commits($cmd);
1679
1680	foreach my $file_range_diff (@range) {
1681	    next if (!($file_range_diff =~ m/(.+):(.+):(.+)/));
1682	    my $diff_file = $1;
1683	    my $diff_start = $2;
1684	    my $diff_length = $3;
1685	    next if ("$file" ne "$diff_file");
1686	    for (my $i = $diff_start; $i < $diff_start + $diff_length; $i++) {
1687		push(@commits, $all_commits[$i]);
1688	    }
1689	}
1690    } elsif (@range) {
1691	foreach my $file_range_diff (@range) {
1692	    next if (!($file_range_diff =~ m/(.+):(.+):(.+)/));
1693	    my $diff_file = $1;
1694	    my $diff_start = $2;
1695	    my $diff_length = $3;
1696	    next if ("$file" ne "$diff_file");
1697	    $cmd = $VCS_cmds{"blame_range_cmd"};
1698	    $cmd =~ s/(\$\w+)/$1/eeg;		#interpolate $cmd
1699	    push(@commits, vcs_save_commits($cmd));
1700	}
1701    } else {
1702	$cmd = $VCS_cmds{"blame_file_cmd"};
1703	$cmd =~ s/(\$\w+)/$1/eeg;		#interpolate $cmd
1704	@commits = vcs_save_commits($cmd);
1705    }
1706
1707    foreach my $commit (@commits) {
1708	$commit =~ s/^\^//g;
1709    }
1710
1711    return @commits;
1712}
1713
1714my $printed_novcs = 0;
1715sub vcs_exists {
1716    %VCS_cmds = %VCS_cmds_git;
1717    return 1 if eval $VCS_cmds{"available"};
1718    %VCS_cmds = %VCS_cmds_hg;
1719    return 2 if eval $VCS_cmds{"available"};
1720    %VCS_cmds = ();
1721    if (!$printed_novcs) {
1722	warn("$P: No supported VCS found.  Add --nogit to options?\n");
1723	warn("Using a git repository produces better results.\n");
1724	warn("Try Linus Torvalds' latest git repository using:\n");
1725	warn("git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git\n");
1726	$printed_novcs = 1;
1727    }
1728    return 0;
1729}
1730
1731sub vcs_is_git {
1732    vcs_exists();
1733    return $vcs_used == 1;
1734}
1735
1736sub vcs_is_hg {
1737    return $vcs_used == 2;
1738}
1739
1740sub vcs_add_commit_signers {
1741    return if (!vcs_exists());
1742
1743    my ($commit, $desc) = @_;
1744    my $commit_count = 0;
1745    my $commit_authors_ref;
1746    my $commit_signers_ref;
1747    my $stats_ref;
1748    my @commit_authors = ();
1749    my @commit_signers = ();
1750    my $cmd;
1751
1752    $cmd = $VCS_cmds{"find_commit_signers_cmd"};
1753    $cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
1754
1755    ($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, "");
1756    @commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
1757    @commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
1758
1759    foreach my $signer (@commit_signers) {
1760	$signer = deduplicate_email($signer);
1761    }
1762
1763    vcs_assign($desc, 1, @commit_signers);
1764}
1765
1766sub interactive_get_maintainers {
1767    my ($list_ref) = @_;
1768    my @list = @$list_ref;
1769
1770    vcs_exists();
1771
1772    my %selected;
1773    my %authored;
1774    my %signed;
1775    my $count = 0;
1776    my $maintained = 0;
1777    foreach my $entry (@list) {
1778	$maintained = 1 if ($entry->[1] =~ /^(maintainer|supporter)/i);
1779	$selected{$count} = 1;
1780	$authored{$count} = 0;
1781	$signed{$count} = 0;
1782	$count++;
1783    }
1784
1785    #menu loop
1786    my $done = 0;
1787    my $print_options = 0;
1788    my $redraw = 1;
1789    while (!$done) {
1790	$count = 0;
1791	if ($redraw) {
1792	    printf STDERR "\n%1s %2s %-65s",
1793			  "*", "#", "email/list and role:stats";
1794	    if ($email_git ||
1795		($email_git_fallback && !$maintained) ||
1796		$email_git_blame) {
1797		print STDERR "auth sign";
1798	    }
1799	    print STDERR "\n";
1800	    foreach my $entry (@list) {
1801		my $email = $entry->[0];
1802		my $role = $entry->[1];
1803		my $sel = "";
1804		$sel = "*" if ($selected{$count});
1805		my $commit_author = $commit_author_hash{$email};
1806		my $commit_signer = $commit_signer_hash{$email};
1807		my $authored = 0;
1808		my $signed = 0;
1809		$authored++ for (@{$commit_author});
1810		$signed++ for (@{$commit_signer});
1811		printf STDERR "%1s %2d %-65s", $sel, $count + 1, $email;
1812		printf STDERR "%4d %4d", $authored, $signed
1813		    if ($authored > 0 || $signed > 0);
1814		printf STDERR "\n     %s\n", $role;
1815		if ($authored{$count}) {
1816		    my $commit_author = $commit_author_hash{$email};
1817		    foreach my $ref (@{$commit_author}) {
1818			print STDERR "     Author: @{$ref}[1]\n";
1819		    }
1820		}
1821		if ($signed{$count}) {
1822		    my $commit_signer = $commit_signer_hash{$email};
1823		    foreach my $ref (@{$commit_signer}) {
1824			print STDERR "     @{$ref}[2]: @{$ref}[1]\n";
1825		    }
1826		}
1827
1828		$count++;
1829	    }
1830	}
1831	my $date_ref = \$email_git_since;
1832	$date_ref = \$email_hg_since if (vcs_is_hg());
1833	if ($print_options) {
1834	    $print_options = 0;
1835	    if (vcs_exists()) {
1836		print STDERR <<EOT
1837
1838Version Control options:
1839g  use git history      [$email_git]
1840gf use git-fallback     [$email_git_fallback]
1841b  use git blame        [$email_git_blame]
1842bs use blame signatures [$email_git_blame_signatures]
1843c# minimum commits      [$email_git_min_signatures]
1844%# min percent          [$email_git_min_percent]
1845d# history to use       [$$date_ref]
1846x# max maintainers      [$email_git_max_maintainers]
1847t  all signature types  [$email_git_all_signature_types]
1848m  use .mailmap         [$email_use_mailmap]
1849EOT
1850	    }
1851	    print STDERR <<EOT
1852
1853Additional options:
18540  toggle all
1855tm toggle maintainers
1856tg toggle git entries
1857tl toggle open list entries
1858ts toggle subscriber list entries
1859f  emails in file       [$email_file_emails]
1860k  keywords in file     [$keywords]
1861r  remove duplicates    [$email_remove_duplicates]
1862p# pattern match depth  [$pattern_depth]
1863EOT
1864	}
1865	print STDERR
1866"\n#(toggle), A#(author), S#(signed) *(all), ^(none), O(options), Y(approve): ";
1867
1868	my $input = <STDIN>;
1869	chomp($input);
1870
1871	$redraw = 1;
1872	my $rerun = 0;
1873	my @wish = split(/[, ]+/, $input);
1874	foreach my $nr (@wish) {
1875	    $nr = lc($nr);
1876	    my $sel = substr($nr, 0, 1);
1877	    my $str = substr($nr, 1);
1878	    my $val = 0;
1879	    $val = $1 if $str =~ /^(\d+)$/;
1880
1881	    if ($sel eq "y") {
1882		$interactive = 0;
1883		$done = 1;
1884		$output_rolestats = 0;
1885		$output_roles = 0;
1886		last;
1887	    } elsif ($nr =~ /^\d+$/ && $nr > 0 && $nr <= $count) {
1888		$selected{$nr - 1} = !$selected{$nr - 1};
1889	    } elsif ($sel eq "*" || $sel eq '^') {
1890		my $toggle = 0;
1891		$toggle = 1 if ($sel eq '*');
1892		for (my $i = 0; $i < $count; $i++) {
1893		    $selected{$i} = $toggle;
1894		}
1895	    } elsif ($sel eq "0") {
1896		for (my $i = 0; $i < $count; $i++) {
1897		    $selected{$i} = !$selected{$i};
1898		}
1899	    } elsif ($sel eq "t") {
1900		if (lc($str) eq "m") {
1901		    for (my $i = 0; $i < $count; $i++) {
1902			$selected{$i} = !$selected{$i}
1903			    if ($list[$i]->[1] =~ /^(maintainer|supporter)/i);
1904		    }
1905		} elsif (lc($str) eq "g") {
1906		    for (my $i = 0; $i < $count; $i++) {
1907			$selected{$i} = !$selected{$i}
1908			    if ($list[$i]->[1] =~ /^(author|commit|signer)/i);
1909		    }
1910		} elsif (lc($str) eq "l") {
1911		    for (my $i = 0; $i < $count; $i++) {
1912			$selected{$i} = !$selected{$i}
1913			    if ($list[$i]->[1] =~ /^(open list)/i);
1914		    }
1915		} elsif (lc($str) eq "s") {
1916		    for (my $i = 0; $i < $count; $i++) {
1917			$selected{$i} = !$selected{$i}
1918			    if ($list[$i]->[1] =~ /^(subscriber list)/i);
1919		    }
1920		}
1921	    } elsif ($sel eq "a") {
1922		if ($val > 0 && $val <= $count) {
1923		    $authored{$val - 1} = !$authored{$val - 1};
1924		} elsif ($str eq '*' || $str eq '^') {
1925		    my $toggle = 0;
1926		    $toggle = 1 if ($str eq '*');
1927		    for (my $i = 0; $i < $count; $i++) {
1928			$authored{$i} = $toggle;
1929		    }
1930		}
1931	    } elsif ($sel eq "s") {
1932		if ($val > 0 && $val <= $count) {
1933		    $signed{$val - 1} = !$signed{$val - 1};
1934		} elsif ($str eq '*' || $str eq '^') {
1935		    my $toggle = 0;
1936		    $toggle = 1 if ($str eq '*');
1937		    for (my $i = 0; $i < $count; $i++) {
1938			$signed{$i} = $toggle;
1939		    }
1940		}
1941	    } elsif ($sel eq "o") {
1942		$print_options = 1;
1943		$redraw = 1;
1944	    } elsif ($sel eq "g") {
1945		if ($str eq "f") {
1946		    bool_invert(\$email_git_fallback);
1947		} else {
1948		    bool_invert(\$email_git);
1949		}
1950		$rerun = 1;
1951	    } elsif ($sel eq "b") {
1952		if ($str eq "s") {
1953		    bool_invert(\$email_git_blame_signatures);
1954		} else {
1955		    bool_invert(\$email_git_blame);
1956		}
1957		$rerun = 1;
1958	    } elsif ($sel eq "c") {
1959		if ($val > 0) {
1960		    $email_git_min_signatures = $val;
1961		    $rerun = 1;
1962		}
1963	    } elsif ($sel eq "x") {
1964		if ($val > 0) {
1965		    $email_git_max_maintainers = $val;
1966		    $rerun = 1;
1967		}
1968	    } elsif ($sel eq "%") {
1969		if ($str ne "" && $val >= 0) {
1970		    $email_git_min_percent = $val;
1971		    $rerun = 1;
1972		}
1973	    } elsif ($sel eq "d") {
1974		if (vcs_is_git()) {
1975		    $email_git_since = $str;
1976		} elsif (vcs_is_hg()) {
1977		    $email_hg_since = $str;
1978		}
1979		$rerun = 1;
1980	    } elsif ($sel eq "t") {
1981		bool_invert(\$email_git_all_signature_types);
1982		$rerun = 1;
1983	    } elsif ($sel eq "f") {
1984		bool_invert(\$email_file_emails);
1985		$rerun = 1;
1986	    } elsif ($sel eq "r") {
1987		bool_invert(\$email_remove_duplicates);
1988		$rerun = 1;
1989	    } elsif ($sel eq "m") {
1990		bool_invert(\$email_use_mailmap);
1991		read_mailmap();
1992		$rerun = 1;
1993	    } elsif ($sel eq "k") {
1994		bool_invert(\$keywords);
1995		$rerun = 1;
1996	    } elsif ($sel eq "p") {
1997		if ($str ne "" && $val >= 0) {
1998		    $pattern_depth = $val;
1999		    $rerun = 1;
2000		}
2001	    } elsif ($sel eq "h" || $sel eq "?") {
2002		print STDERR <<EOT
2003
2004Interactive mode allows you to select the various maintainers, submitters,
2005commit signers and mailing lists that could be CC'd on a patch.
2006
2007Any *'d entry is selected.
2008
2009If you have git or hg installed, you can choose to summarize the commit
2010history of files in the patch.  Also, each line of the current file can
2011be matched to its commit author and that commits signers with blame.
2012
2013Various knobs exist to control the length of time for active commit
2014tracking, the maximum number of commit authors and signers to add,
2015and such.
2016
2017Enter selections at the prompt until you are satisfied that the selected
2018maintainers are appropriate.  You may enter multiple selections separated
2019by either commas or spaces.
2020
2021EOT
2022	    } else {
2023		print STDERR "invalid option: '$nr'\n";
2024		$redraw = 0;
2025	    }
2026	}
2027	if ($rerun) {
2028	    print STDERR "git-blame can be very slow, please have patience..."
2029		if ($email_git_blame);
2030	    goto &get_maintainers;
2031	}
2032    }
2033
2034    #drop not selected entries
2035    $count = 0;
2036    my @new_emailto = ();
2037    foreach my $entry (@list) {
2038	if ($selected{$count}) {
2039	    push(@new_emailto, $list[$count]);
2040	}
2041	$count++;
2042    }
2043    return @new_emailto;
2044}
2045
2046sub bool_invert {
2047    my ($bool_ref) = @_;
2048
2049    if ($$bool_ref) {
2050	$$bool_ref = 0;
2051    } else {
2052	$$bool_ref = 1;
2053    }
2054}
2055
2056sub deduplicate_email {
2057    my ($email) = @_;
2058
2059    my $matched = 0;
2060    my ($name, $address) = parse_email($email);
2061    $email = format_email($name, $address, 1);
2062    $email = mailmap_email($email);
2063
2064    return $email if (!$email_remove_duplicates);
2065
2066    ($name, $address) = parse_email($email);
2067
2068    if ($name ne "" && $deduplicate_name_hash{lc($name)}) {
2069	$name = $deduplicate_name_hash{lc($name)}->[0];
2070	$address = $deduplicate_name_hash{lc($name)}->[1];
2071	$matched = 1;
2072    } elsif ($deduplicate_address_hash{lc($address)}) {
2073	$name = $deduplicate_address_hash{lc($address)}->[0];
2074	$address = $deduplicate_address_hash{lc($address)}->[1];
2075	$matched = 1;
2076    }
2077    if (!$matched) {
2078	$deduplicate_name_hash{lc($name)} = [ $name, $address ];
2079	$deduplicate_address_hash{lc($address)} = [ $name, $address ];
2080    }
2081    $email = format_email($name, $address, 1);
2082    $email = mailmap_email($email);
2083    return $email;
2084}
2085
2086sub save_commits_by_author {
2087    my (@lines) = @_;
2088
2089    my @authors = ();
2090    my @commits = ();
2091    my @subjects = ();
2092
2093    foreach my $line (@lines) {
2094	if ($line =~ m/$VCS_cmds{"author_pattern"}/) {
2095	    my $author = $1;
2096	    $author = deduplicate_email($author);
2097	    push(@authors, $author);
2098	}
2099	push(@commits, $1) if ($line =~ m/$VCS_cmds{"commit_pattern"}/);
2100	push(@subjects, $1) if ($line =~ m/$VCS_cmds{"subject_pattern"}/);
2101    }
2102
2103    for (my $i = 0; $i < @authors; $i++) {
2104	my $exists = 0;
2105	foreach my $ref(@{$commit_author_hash{$authors[$i]}}) {
2106	    if (@{$ref}[0] eq $commits[$i] &&
2107		@{$ref}[1] eq $subjects[$i]) {
2108		$exists = 1;
2109		last;
2110	    }
2111	}
2112	if (!$exists) {
2113	    push(@{$commit_author_hash{$authors[$i]}},
2114		 [ ($commits[$i], $subjects[$i]) ]);
2115	}
2116    }
2117}
2118
2119sub save_commits_by_signer {
2120    my (@lines) = @_;
2121
2122    my $commit = "";
2123    my $subject = "";
2124
2125    foreach my $line (@lines) {
2126	$commit = $1 if ($line =~ m/$VCS_cmds{"commit_pattern"}/);
2127	$subject = $1 if ($line =~ m/$VCS_cmds{"subject_pattern"}/);
2128	if ($line =~ /^[ \t]*${signature_pattern}.*\@.*$/) {
2129	    my @signatures = ($line);
2130	    my ($types_ref, $signers_ref) = extract_formatted_signatures(@signatures);
2131	    my @types = @$types_ref;
2132	    my @signers = @$signers_ref;
2133
2134	    my $type = $types[0];
2135	    my $signer = $signers[0];
2136
2137	    $signer = deduplicate_email($signer);
2138
2139	    my $exists = 0;
2140	    foreach my $ref(@{$commit_signer_hash{$signer}}) {
2141		if (@{$ref}[0] eq $commit &&
2142		    @{$ref}[1] eq $subject &&
2143		    @{$ref}[2] eq $type) {
2144		    $exists = 1;
2145		    last;
2146		}
2147	    }
2148	    if (!$exists) {
2149		push(@{$commit_signer_hash{$signer}},
2150		     [ ($commit, $subject, $type) ]);
2151	    }
2152	}
2153    }
2154}
2155
2156sub vcs_assign {
2157    my ($role, $divisor, @lines) = @_;
2158
2159    my %hash;
2160    my $count = 0;
2161
2162    return if (@lines <= 0);
2163
2164    if ($divisor <= 0) {
2165	warn("Bad divisor in " . (caller(0))[3] . ": $divisor\n");
2166	$divisor = 1;
2167    }
2168
2169    @lines = mailmap(@lines);
2170
2171    return if (@lines <= 0);
2172
2173    @lines = sort(@lines);
2174
2175    # uniq -c
2176    $hash{$_}++ for @lines;
2177
2178    # sort -rn
2179    foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
2180	my $sign_offs = $hash{$line};
2181	my $percent = $sign_offs * 100 / $divisor;
2182
2183	$percent = 100 if ($percent > 100);
2184	next if (ignore_email_address($line));
2185	$count++;
2186	last if ($sign_offs < $email_git_min_signatures ||
2187		 $count > $email_git_max_maintainers ||
2188		 $percent < $email_git_min_percent);
2189	push_email_address($line, '');
2190	if ($output_rolestats) {
2191	    my $fmt_percent = sprintf("%.0f", $percent);
2192	    add_role($line, "$role:$sign_offs/$divisor=$fmt_percent%");
2193	} else {
2194	    add_role($line, $role);
2195	}
2196    }
2197}
2198
2199sub vcs_file_signoffs {
2200    my ($file) = @_;
2201
2202    my $authors_ref;
2203    my $signers_ref;
2204    my $stats_ref;
2205    my @authors = ();
2206    my @signers = ();
2207    my @stats = ();
2208    my $commits;
2209
2210    $vcs_used = vcs_exists();
2211    return if (!$vcs_used);
2212
2213    my $cmd = $VCS_cmds{"find_signers_cmd"};
2214    $cmd =~ s/(\$\w+)/$1/eeg;		# interpolate $cmd
2215
2216    ($commits, $signers_ref, $authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
2217
2218    @signers = @{$signers_ref} if defined $signers_ref;
2219    @authors = @{$authors_ref} if defined $authors_ref;
2220    @stats = @{$stats_ref} if defined $stats_ref;
2221
2222#    print("commits: <$commits>\nsigners:<@signers>\nauthors: <@authors>\nstats: <@stats>\n");
2223
2224    foreach my $signer (@signers) {
2225	$signer = deduplicate_email($signer);
2226    }
2227
2228    vcs_assign("commit_signer", $commits, @signers);
2229    vcs_assign("authored", $commits, @authors);
2230    if ($#authors == $#stats) {
2231	my $stat_pattern = $VCS_cmds{"stat_pattern"};
2232	$stat_pattern =~ s/(\$\w+)/$1/eeg;	#interpolate $stat_pattern
2233
2234	my $added = 0;
2235	my $deleted = 0;
2236	for (my $i = 0; $i <= $#stats; $i++) {
2237	    if ($stats[$i] =~ /$stat_pattern/) {
2238		$added += $1;
2239		$deleted += $2;
2240	    }
2241	}
2242	my @tmp_authors = uniq(@authors);
2243	foreach my $author (@tmp_authors) {
2244	    $author = deduplicate_email($author);
2245	}
2246	@tmp_authors = uniq(@tmp_authors);
2247	my @list_added = ();
2248	my @list_deleted = ();
2249	foreach my $author (@tmp_authors) {
2250	    my $auth_added = 0;
2251	    my $auth_deleted = 0;
2252	    for (my $i = 0; $i <= $#stats; $i++) {
2253		if ($author eq deduplicate_email($authors[$i]) &&
2254		    $stats[$i] =~ /$stat_pattern/) {
2255		    $auth_added += $1;
2256		    $auth_deleted += $2;
2257		}
2258	    }
2259	    for (my $i = 0; $i < $auth_added; $i++) {
2260		push(@list_added, $author);
2261	    }
2262	    for (my $i = 0; $i < $auth_deleted; $i++) {
2263		push(@list_deleted, $author);
2264	    }
2265	}
2266	vcs_assign("added_lines", $added, @list_added);
2267	vcs_assign("removed_lines", $deleted, @list_deleted);
2268    }
2269}
2270
2271sub vcs_file_blame {
2272    my ($file) = @_;
2273
2274    my @signers = ();
2275    my @all_commits = ();
2276    my @commits = ();
2277    my $total_commits;
2278    my $total_lines;
2279
2280    $vcs_used = vcs_exists();
2281    return if (!$vcs_used);
2282
2283    @all_commits = vcs_blame($file);
2284    @commits = uniq(@all_commits);
2285    $total_commits = @commits;
2286    $total_lines = @all_commits;
2287
2288    if ($email_git_blame_signatures) {
2289	if (vcs_is_hg()) {
2290	    my $commit_count;
2291	    my $commit_authors_ref;
2292	    my $commit_signers_ref;
2293	    my $stats_ref;
2294	    my @commit_authors = ();
2295	    my @commit_signers = ();
2296	    my $commit = join(" -r ", @commits);
2297	    my $cmd;
2298
2299	    $cmd = $VCS_cmds{"find_commit_signers_cmd"};
2300	    $cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
2301
2302	    ($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
2303	    @commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
2304	    @commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
2305
2306	    push(@signers, @commit_signers);
2307	} else {
2308	    foreach my $commit (@commits) {
2309		my $commit_count;
2310		my $commit_authors_ref;
2311		my $commit_signers_ref;
2312		my $stats_ref;
2313		my @commit_authors = ();
2314		my @commit_signers = ();
2315		my $cmd;
2316
2317		$cmd = $VCS_cmds{"find_commit_signers_cmd"};
2318		$cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
2319
2320		($commit_count, $commit_signers_ref, $commit_authors_ref, $stats_ref) = vcs_find_signers($cmd, $file);
2321		@commit_authors = @{$commit_authors_ref} if defined $commit_authors_ref;
2322		@commit_signers = @{$commit_signers_ref} if defined $commit_signers_ref;
2323
2324		push(@signers, @commit_signers);
2325	    }
2326	}
2327    }
2328
2329    if ($from_filename) {
2330	if ($output_rolestats) {
2331	    my @blame_signers;
2332	    if (vcs_is_hg()) {{		# Double brace for last exit
2333		my $commit_count;
2334		my @commit_signers = ();
2335		@commits = uniq(@commits);
2336		@commits = sort(@commits);
2337		my $commit = join(" -r ", @commits);
2338		my $cmd;
2339
2340		$cmd = $VCS_cmds{"find_commit_author_cmd"};
2341		$cmd =~ s/(\$\w+)/$1/eeg;	#substitute variables in $cmd
2342
2343		my @lines = ();
2344
2345		@lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
2346
2347		if (!$email_git_penguin_chiefs) {
2348		    @lines = grep(!/${penguin_chiefs}/i, @lines);
2349		}
2350
2351		last if !@lines;
2352
2353		my @authors = ();
2354		foreach my $line (@lines) {
2355		    if ($line =~ m/$VCS_cmds{"author_pattern"}/) {
2356			my $author = $1;
2357			$author = deduplicate_email($author);
2358			push(@authors, $author);
2359		    }
2360		}
2361
2362		save_commits_by_author(@lines) if ($interactive);
2363		save_commits_by_signer(@lines) if ($interactive);
2364
2365		push(@signers, @authors);
2366	    }}
2367	    else {
2368		foreach my $commit (@commits) {
2369		    my $i;
2370		    my $cmd = $VCS_cmds{"find_commit_author_cmd"};
2371		    $cmd =~ s/(\$\w+)/$1/eeg;	#interpolate $cmd
2372		    my @author = vcs_find_author($cmd);
2373		    next if !@author;
2374
2375		    my $formatted_author = deduplicate_email($author[0]);
2376
2377		    my $count = grep(/$commit/, @all_commits);
2378		    for ($i = 0; $i < $count ; $i++) {
2379			push(@blame_signers, $formatted_author);
2380		    }
2381		}
2382	    }
2383	    if (@blame_signers) {
2384		vcs_assign("authored lines", $total_lines, @blame_signers);
2385	    }
2386	}
2387	foreach my $signer (@signers) {
2388	    $signer = deduplicate_email($signer);
2389	}
2390	vcs_assign("commits", $total_commits, @signers);
2391    } else {
2392	foreach my $signer (@signers) {
2393	    $signer = deduplicate_email($signer);
2394	}
2395	vcs_assign("modified commits", $total_commits, @signers);
2396    }
2397}
2398
2399sub vcs_file_exists {
2400    my ($file) = @_;
2401
2402    my $exists;
2403
2404    my $vcs_used = vcs_exists();
2405    return 0 if (!$vcs_used);
2406
2407    my $cmd = $VCS_cmds{"file_exists_cmd"};
2408    $cmd =~ s/(\$\w+)/$1/eeg;		# interpolate $cmd
2409    $cmd .= " 2>&1";
2410    $exists = &{$VCS_cmds{"execute_cmd"}}($cmd);
2411
2412    return 0 if ($? != 0);
2413
2414    return $exists;
2415}
2416
2417sub vcs_list_files {
2418    my ($file) = @_;
2419
2420    my @lsfiles = ();
2421
2422    my $vcs_used = vcs_exists();
2423    return 0 if (!$vcs_used);
2424
2425    my $cmd = $VCS_cmds{"list_files_cmd"};
2426    $cmd =~ s/(\$\w+)/$1/eeg;   # interpolate $cmd
2427    @lsfiles = &{$VCS_cmds{"execute_cmd"}}($cmd);
2428
2429    return () if ($? != 0);
2430
2431    return @lsfiles;
2432}
2433
2434sub uniq {
2435    my (@parms) = @_;
2436
2437    my %saw;
2438    @parms = grep(!$saw{$_}++, @parms);
2439    return @parms;
2440}
2441
2442sub sort_and_uniq {
2443    my (@parms) = @_;
2444
2445    my %saw;
2446    @parms = sort @parms;
2447    @parms = grep(!$saw{$_}++, @parms);
2448    return @parms;
2449}
2450
2451sub clean_file_emails {
2452    my (@file_emails) = @_;
2453    my @fmt_emails = ();
2454
2455    foreach my $email (@file_emails) {
2456	$email =~ s/[\(\<\{]{0,1}([A-Za-z0-9_\.\+-]+\@[A-Za-z0-9\.-]+)[\)\>\}]{0,1}/\<$1\>/g;
2457	my ($name, $address) = parse_email($email);
2458	if ($name eq '"[,\.]"') {
2459	    $name = "";
2460	}
2461
2462	my @nw = split(/[^A-Za-zÀ-ÿ\'\,\.\+-]/, $name);
 
 
 
 
 
 
 
 
 
2463	if (@nw > 2) {
2464	    my $first = $nw[@nw - 3];
2465	    my $middle = $nw[@nw - 2];
2466	    my $last = $nw[@nw - 1];
2467
2468	    if (((length($first) == 1 && $first =~ m/[A-Za-z]/) ||
2469		 (length($first) == 2 && substr($first, -1) eq ".")) ||
2470		(length($middle) == 1 ||
2471		 (length($middle) == 2 && substr($middle, -1) eq "."))) {
2472		$name = "$first $middle $last";
2473	    } else {
2474		$name = "$middle $last";
2475	    }
 
 
2476	}
2477
2478	if (substr($name, -1) =~ /[,\.]/) {
2479	    $name = substr($name, 0, length($name) - 1);
2480	} elsif (substr($name, -2) =~ /[,\.]"/) {
2481	    $name = substr($name, 0, length($name) - 2) . '"';
2482	}
2483
2484	if (substr($name, 0, 1) =~ /[,\.]/) {
2485	    $name = substr($name, 1, length($name) - 1);
2486	} elsif (substr($name, 0, 2) =~ /"[,\.]/) {
2487	    $name = '"' . substr($name, 2, length($name) - 2);
2488	}
2489
2490	my $fmt_email = format_email($name, $address, $email_usename);
2491	push(@fmt_emails, $fmt_email);
2492    }
2493    return @fmt_emails;
2494}
2495
2496sub merge_email {
2497    my @lines;
2498    my %saw;
2499
2500    for (@_) {
2501	my ($address, $role) = @$_;
2502	if (!$saw{$address}) {
2503	    if ($output_roles) {
2504		push(@lines, "$address ($role)");
2505	    } else {
2506		push(@lines, $address);
2507	    }
2508	    $saw{$address} = 1;
2509	}
2510    }
2511
2512    return @lines;
2513}
2514
2515sub output {
2516    my (@parms) = @_;
2517
2518    if ($output_multiline) {
2519	foreach my $line (@parms) {
2520	    print("${line}\n");
2521	}
2522    } else {
2523	print(join($output_separator, @parms));
2524	print("\n");
2525    }
2526}
2527
2528my $rfc822re;
2529
2530sub make_rfc822re {
2531#   Basic lexical tokens are specials, domain_literal, quoted_string, atom, and
2532#   comment.  We must allow for rfc822_lwsp (or comments) after each of these.
2533#   This regexp will only work on addresses which have had comments stripped
2534#   and replaced with rfc822_lwsp.
2535
2536    my $specials = '()<>@,;:\\\\".\\[\\]';
2537    my $controls = '\\000-\\037\\177';
2538
2539    my $dtext = "[^\\[\\]\\r\\\\]";
2540    my $domain_literal = "\\[(?:$dtext|\\\\.)*\\]$rfc822_lwsp*";
2541
2542    my $quoted_string = "\"(?:[^\\\"\\r\\\\]|\\\\.|$rfc822_lwsp)*\"$rfc822_lwsp*";
2543
2544#   Use zero-width assertion to spot the limit of an atom.  A simple
2545#   $rfc822_lwsp* causes the regexp engine to hang occasionally.
2546    my $atom = "[^$specials $controls]+(?:$rfc822_lwsp+|\\Z|(?=[\\[\"$specials]))";
2547    my $word = "(?:$atom|$quoted_string)";
2548    my $localpart = "$word(?:\\.$rfc822_lwsp*$word)*";
2549
2550    my $sub_domain = "(?:$atom|$domain_literal)";
2551    my $domain = "$sub_domain(?:\\.$rfc822_lwsp*$sub_domain)*";
2552
2553    my $addr_spec = "$localpart\@$rfc822_lwsp*$domain";
2554
2555    my $phrase = "$word*";
2556    my $route = "(?:\@$domain(?:,\@$rfc822_lwsp*$domain)*:$rfc822_lwsp*)";
2557    my $route_addr = "\\<$rfc822_lwsp*$route?$addr_spec\\>$rfc822_lwsp*";
2558    my $mailbox = "(?:$addr_spec|$phrase$route_addr)";
2559
2560    my $group = "$phrase:$rfc822_lwsp*(?:$mailbox(?:,\\s*$mailbox)*)?;\\s*";
2561    my $address = "(?:$mailbox|$group)";
2562
2563    return "$rfc822_lwsp*$address";
2564}
2565
2566sub rfc822_strip_comments {
2567    my $s = shift;
2568#   Recursively remove comments, and replace with a single space.  The simpler
2569#   regexps in the Email Addressing FAQ are imperfect - they will miss escaped
2570#   chars in atoms, for example.
2571
2572    while ($s =~ s/^((?:[^"\\]|\\.)*
2573                    (?:"(?:[^"\\]|\\.)*"(?:[^"\\]|\\.)*)*)
2574                    \((?:[^()\\]|\\.)*\)/$1 /osx) {}
2575    return $s;
2576}
2577
2578#   valid: returns true if the parameter is an RFC822 valid address
2579#
2580sub rfc822_valid {
2581    my $s = rfc822_strip_comments(shift);
2582
2583    if (!$rfc822re) {
2584        $rfc822re = make_rfc822re();
2585    }
2586
2587    return $s =~ m/^$rfc822re$/so && $s =~ m/^$rfc822_char*$/;
2588}
2589
2590#   validlist: In scalar context, returns true if the parameter is an RFC822
2591#              valid list of addresses.
2592#
2593#              In list context, returns an empty list on failure (an invalid
2594#              address was found); otherwise a list whose first element is the
2595#              number of addresses found and whose remaining elements are the
2596#              addresses.  This is needed to disambiguate failure (invalid)
2597#              from success with no addresses found, because an empty string is
2598#              a valid list.
2599
2600sub rfc822_validlist {
2601    my $s = rfc822_strip_comments(shift);
2602
2603    if (!$rfc822re) {
2604        $rfc822re = make_rfc822re();
2605    }
2606    # * null list items are valid according to the RFC
2607    # * the '1' business is to aid in distinguishing failure from no results
2608
2609    my @r;
2610    if ($s =~ m/^(?:$rfc822re)?(?:,(?:$rfc822re)?)*$/so &&
2611	$s =~ m/^$rfc822_char*$/) {
2612        while ($s =~ m/(?:^|,$rfc822_lwsp*)($rfc822re)/gos) {
2613            push(@r, $1);
2614        }
2615        return wantarray ? (scalar(@r), @r) : 1;
2616    }
2617    return wantarray ? () : 0;
2618}