768 lines
18 KiB
Perl
Executable File
768 lines
18 KiB
Perl
Executable File
#!/usr/bin/perl -w
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# (c) 2007, Joe Perches <joe@perches.com>
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# created from checkpatch.pl
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#
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# Print selected MAINTAINERS information for
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# the files modified in a patch or for a file
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#
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# usage: perl scripts/get_maintainers.pl [OPTIONS] <patch>
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# perl scripts/get_maintainers.pl [OPTIONS] -f <file>
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#
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# Licensed under the terms of the GNU GPL License version 2
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use strict;
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my $P = $0;
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my $V = '0.18beta2';
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use Getopt::Long qw(:config no_auto_abbrev);
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my $lk_path = "./";
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my $email = 1;
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my $email_usename = 1;
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my $email_maintainer = 1;
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my $email_list = 1;
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my $email_subscriber_list = 0;
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my $email_git = 1;
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my $email_git_penguin_chiefs = 0;
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my $email_git_min_signatures = 1;
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my $email_git_max_maintainers = 5;
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my $email_git_min_percent = 5;
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my $email_git_since = "1-year-ago";
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my $email_git_blame = 0;
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my $output_multiline = 1;
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my $output_separator = ", ";
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my $scm = 0;
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my $web = 0;
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my $subsystem = 0;
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my $status = 0;
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my $from_filename = 0;
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my $version = 0;
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my $help = 0;
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my $exit = 0;
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my @penguin_chief = ();
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push(@penguin_chief,"Linus Torvalds:torvalds\@linux-foundation.org");
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#Andrew wants in on most everything - 2009/01/14
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#push(@penguin_chief,"Andrew Morton:akpm\@linux-foundation.org");
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my @penguin_chief_names = ();
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foreach my $chief (@penguin_chief) {
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if ($chief =~ m/^(.*):(.*)/) {
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my $chief_name = $1;
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my $chief_addr = $2;
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push(@penguin_chief_names, $chief_name);
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}
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}
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my $penguin_chiefs = "\(" . join("|",@penguin_chief_names) . "\)";
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# rfc822 email address - preloaded methods go here.
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my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
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my $rfc822_char = '[\\000-\\377]';
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if (!GetOptions(
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'email!' => \$email,
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'git!' => \$email_git,
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'git-chief-penguins!' => \$email_git_penguin_chiefs,
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'git-min-signatures=i' => \$email_git_min_signatures,
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'git-max-maintainers=i' => \$email_git_max_maintainers,
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'git-min-percent=i' => \$email_git_min_percent,
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'git-since=s' => \$email_git_since,
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'git-blame!' => \$email_git_blame,
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'm!' => \$email_maintainer,
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'n!' => \$email_usename,
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'l!' => \$email_list,
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's!' => \$email_subscriber_list,
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'multiline!' => \$output_multiline,
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'separator=s' => \$output_separator,
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'subsystem!' => \$subsystem,
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'status!' => \$status,
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'scm!' => \$scm,
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'web!' => \$web,
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'f|file' => \$from_filename,
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'v|version' => \$version,
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'h|help' => \$help,
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)) {
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usage();
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die "$P: invalid argument\n";
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}
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if ($help != 0) {
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usage();
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exit 0;
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}
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if ($version != 0) {
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print("${P} ${V}\n");
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exit 0;
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}
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if ($#ARGV < 0) {
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usage();
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die "$P: argument missing: patchfile or -f file please\n";
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}
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my $selections = $email + $scm + $status + $subsystem + $web;
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if ($selections == 0) {
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usage();
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die "$P: Missing required option: email, scm, status, subsystem or web\n";
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}
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if ($email &&
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($email_maintainer + $email_list + $email_subscriber_list +
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$email_git + $email_git_penguin_chiefs + $email_git_blame) == 0) {
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usage();
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die "$P: Please select at least 1 email option\n";
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}
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if (!top_of_kernel_tree($lk_path)) {
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die "$P: The current directory does not appear to be "
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. "a linux kernel source tree.\n";
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}
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## Read MAINTAINERS for type/value pairs
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my @typevalue = ();
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open(MAINT, "<${lk_path}MAINTAINERS") || die "$P: Can't open MAINTAINERS\n";
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while (<MAINT>) {
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my $line = $_;
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if ($line =~ m/^(\C):\s*(.*)/) {
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my $type = $1;
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my $value = $2;
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##Filename pattern matching
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if ($type eq "F" || $type eq "X") {
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$value =~ s@\.@\\\.@g; ##Convert . to \.
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$value =~ s/\*/\.\*/g; ##Convert * to .*
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$value =~ s/\?/\./g; ##Convert ? to .
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##if pattern is a directory and it lacks a trailing slash, add one
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if ((-d $value)) {
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$value =~ s@([^/])$@$1/@;
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}
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}
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push(@typevalue, "$type:$value");
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} elsif (!/^(\s)*$/) {
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$line =~ s/\n$//g;
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push(@typevalue, $line);
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}
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}
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close(MAINT);
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## use the filenames on the command line or find the filenames in the patchfiles
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my @files = ();
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my @range = ();
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foreach my $file (@ARGV) {
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##if $file is a directory and it lacks a trailing slash, add one
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if ((-d $file)) {
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$file =~ s@([^/])$@$1/@;
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} elsif (!(-f $file)) {
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die "$P: file '${file}' not found\n";
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}
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if ($from_filename) {
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push(@files, $file);
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} else {
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my $file_cnt = @files;
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my $lastfile;
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open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
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while (<PATCH>) {
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if (m/^\+\+\+\s+(\S+)/) {
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my $filename = $1;
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$filename =~ s@^[^/]*/@@;
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$filename =~ s@\n@@;
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$lastfile = $filename;
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push(@files, $filename);
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} elsif (m/^\@\@ -(\d+),(\d+)/) {
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if ($email_git_blame) {
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push(@range, "$lastfile:$1:$2");
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}
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}
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}
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close(PATCH);
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if ($file_cnt == @files) {
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warn "$P: file '${file}' doesn't appear to be a patch. "
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. "Add -f to options?\n";
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}
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@files = sort_and_uniq(@files);
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}
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}
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my @email_to = ();
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my @list_to = ();
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my @scm = ();
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my @web = ();
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my @subsystem = ();
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my @status = ();
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# Find responsible parties
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foreach my $file (@files) {
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#Do not match excluded file patterns
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my $exclude = 0;
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foreach my $line (@typevalue) {
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if ($line =~ m/^(\C):\s*(.*)/) {
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my $type = $1;
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my $value = $2;
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if ($type eq 'X') {
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if (file_match_pattern($file, $value)) {
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$exclude = 1;
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}
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}
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}
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}
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if (!$exclude) {
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my $tvi = 0;
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foreach my $line (@typevalue) {
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if ($line =~ m/^(\C):\s*(.*)/) {
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my $type = $1;
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my $value = $2;
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if ($type eq 'F') {
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if (file_match_pattern($file, $value)) {
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add_categories($tvi);
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}
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}
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}
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$tvi++;
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}
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}
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if ($email && $email_git) {
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recent_git_signoffs($file);
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}
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if ($email && $email_git_blame) {
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git_assign_blame($file);
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}
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}
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if ($email) {
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foreach my $chief (@penguin_chief) {
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if ($chief =~ m/^(.*):(.*)/) {
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my $email_address;
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if ($email_usename) {
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$email_address = format_email($1, $2);
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} else {
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$email_address = $2;
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}
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if ($email_git_penguin_chiefs) {
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push(@email_to, $email_address);
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} else {
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@email_to = grep(!/${email_address}/, @email_to);
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}
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}
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}
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}
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if ($email || $email_list) {
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my @to = ();
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if ($email) {
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@to = (@to, @email_to);
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}
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if ($email_list) {
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@to = (@to, @list_to);
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}
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output(uniq(@to));
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}
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if ($scm) {
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@scm = sort_and_uniq(@scm);
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output(@scm);
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}
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if ($status) {
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@status = sort_and_uniq(@status);
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output(@status);
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}
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if ($subsystem) {
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@subsystem = sort_and_uniq(@subsystem);
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output(@subsystem);
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}
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if ($web) {
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@web = sort_and_uniq(@web);
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output(@web);
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}
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exit($exit);
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sub file_match_pattern {
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my ($file, $pattern) = @_;
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if (substr($pattern, -1) eq "/") {
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if ($file =~ m@^$pattern@) {
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return 1;
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}
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} else {
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if ($file =~ m@^$pattern@) {
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my $s1 = ($file =~ tr@/@@);
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my $s2 = ($pattern =~ tr@/@@);
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if ($s1 == $s2) {
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return 1;
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}
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}
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}
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return 0;
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}
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sub usage {
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print <<EOT;
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usage: $P [options] patchfile
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$P [options] -f file|directory
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version: $V
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MAINTAINER field selection options:
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--email => print email address(es) if any
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--git => include recent git \*-by: signers
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--git-chief-penguins => include ${penguin_chiefs}
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--git-min-signatures => number of signatures required (default: 1)
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--git-max-maintainers => maximum maintainers to add (default: 5)
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--git-min-percent => minimum percentage of commits required (default: 5)
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--git-since => git history to use (default: 1-year-ago)
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--git-blame => use git blame to find modified commits for patch or file
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--m => include maintainer(s) if any
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--n => include name 'Full Name <addr\@domain.tld>'
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--l => include list(s) if any
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--s => include subscriber only list(s) if any
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--scm => print SCM tree(s) if any
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--status => print status if any
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--subsystem => print subsystem name if any
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--web => print website(s) if any
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Output type options:
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--separator [, ] => separator for multiple entries on 1 line
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--multiline => print 1 entry per line
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Default options:
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[--email --git --m --n --l --multiline]
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Other options:
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--version => show version
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--help => show this help information
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Notes:
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Using "-f directory" may give unexpected results:
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Used with "--git", git signators for _all_ files in and below
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directory are examined as git recurses directories.
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Any specified X: (exclude) pattern matches are _not_ ignored.
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Used with "--nogit", directory is used as a pattern match,
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no individual file within the directory or subdirectory
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is matched.
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Used with "--git-blame", does not iterate all files in directory
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Using "--git-blame" is slow and may add old committers and authors
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that are no longer active maintainers to the output.
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EOT
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}
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sub top_of_kernel_tree {
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my ($lk_path) = @_;
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if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
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$lk_path .= "/";
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}
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if ( (-f "${lk_path}COPYING")
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&& (-f "${lk_path}CREDITS")
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&& (-f "${lk_path}Kbuild")
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&& (-f "${lk_path}MAINTAINERS")
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&& (-f "${lk_path}Makefile")
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&& (-f "${lk_path}README")
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&& (-d "${lk_path}Documentation")
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&& (-d "${lk_path}arch")
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&& (-d "${lk_path}include")
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&& (-d "${lk_path}drivers")
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&& (-d "${lk_path}fs")
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&& (-d "${lk_path}init")
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&& (-d "${lk_path}ipc")
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&& (-d "${lk_path}kernel")
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&& (-d "${lk_path}lib")
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&& (-d "${lk_path}scripts")) {
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return 1;
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}
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return 0;
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}
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sub format_email {
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my ($name, $email) = @_;
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$name =~ s/^\s+|\s+$//g;
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$name =~ s/^\"|\"$//g;
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$email =~ s/^\s+|\s+$//g;
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my $formatted_email = "";
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if ($name =~ /[^a-z0-9 \.\-]/i) { ##has "must quote" chars
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$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
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$formatted_email = "\"${name}\"\ \<${email}\>";
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} else {
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$formatted_email = "${name} \<${email}\>";
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}
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return $formatted_email;
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}
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sub add_categories {
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my ($index) = @_;
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$index = $index - 1;
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while ($index >= 0) {
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my $tv = $typevalue[$index];
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if ($tv =~ m/^(\C):\s*(.*)/) {
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my $ptype = $1;
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my $pvalue = $2;
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if ($ptype eq "L") {
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my $list_address = $pvalue;
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my $list_additional = "";
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if ($list_address =~ m/([^\s]+)\s+(.*)$/) {
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$list_address = $1;
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$list_additional = $2;
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}
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if ($list_additional =~ m/subscribers-only/) {
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if ($email_subscriber_list) {
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push(@list_to, $list_address);
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}
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} else {
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if ($email_list) {
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push(@list_to, $list_address);
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}
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}
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} elsif ($ptype eq "M") {
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my $p_used = 0;
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if ($index >= 0) {
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my $tv = $typevalue[$index - 1];
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if ($tv =~ m/^(\C):\s*(.*)/) {
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if ($1 eq "P") {
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if ($email_usename) {
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push_email_address(format_email($2, $pvalue));
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$p_used = 1;
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}
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}
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}
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}
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if (!$p_used) {
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push_email_addresses($pvalue);
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}
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} elsif ($ptype eq "T") {
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push(@scm, $pvalue);
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} elsif ($ptype eq "W") {
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push(@web, $pvalue);
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} elsif ($ptype eq "S") {
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push(@status, $pvalue);
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}
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$index--;
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} else {
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push(@subsystem,$tv);
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$index = -1;
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}
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}
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}
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sub push_email_address {
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my ($email_address) = @_;
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my $email_name = "";
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if ($email_maintainer) {
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if ($email_address =~ m/([^<]+)<(.*\@.*)>$/) {
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$email_name = $1;
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$email_address = $2;
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if ($email_usename) {
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push(@email_to, format_email($email_name, $email_address));
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} else {
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push(@email_to, $email_address);
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}
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} elsif ($email_address =~ m/<(.+)>/) {
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$email_address = $1;
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push(@email_to, $email_address);
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} else {
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push(@email_to, $email_address);
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}
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}
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}
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sub push_email_addresses {
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my ($address) = @_;
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my @address_list = ();
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if (rfc822_valid($address)) {
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push_email_address($address);
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} elsif (@address_list = rfc822_validlist($address)) {
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my $array_count = shift(@address_list);
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while (my $entry = shift(@address_list)) {
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push_email_address($entry);
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}
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} else {
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warn("Invalid MAINTAINERS address: '" . $address . "'\n");
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}
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}
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sub which {
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my ($bin) = @_;
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foreach my $path (split(/:/, $ENV{PATH})) {
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if (-e "$path/$bin") {
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return "$path/$bin";
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}
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}
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return "";
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}
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sub recent_git_signoffs {
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my ($file) = @_;
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my $sign_offs = "";
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my $cmd = "";
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my $output = "";
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my $count = 0;
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my @lines = ();
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my $total_sign_offs;
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if (which("git") eq "") {
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warn("$P: git not found. Add --nogit to options?\n");
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return;
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}
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if (!(-d ".git")) {
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warn("$P: .git directory not found. Use a git repository for better results.\n");
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warn("$P: perhaps 'git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git'\n");
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|
return;
|
|
}
|
|
|
|
$cmd = "git log --since=${email_git_since} -- ${file}";
|
|
$cmd .= " | grep -Ei \"^[-_ a-z]+by:.*\\\@.*\$\"";
|
|
if (!$email_git_penguin_chiefs) {
|
|
$cmd .= " | grep -Ev \"${penguin_chiefs}\"";
|
|
}
|
|
$cmd .= " | cut -f2- -d\":\"";
|
|
$cmd .= " | sort | uniq -c | sort -rn";
|
|
|
|
$output = `${cmd}`;
|
|
$output =~ s/^\s*//gm;
|
|
|
|
@lines = split("\n", $output);
|
|
|
|
$total_sign_offs = 0;
|
|
foreach my $line (@lines) {
|
|
if ($line =~ m/([0-9]+)\s+(.*)/) {
|
|
$total_sign_offs += $1;
|
|
} else {
|
|
die("$P: Unexpected git output: ${line}\n");
|
|
}
|
|
}
|
|
|
|
foreach my $line (@lines) {
|
|
if ($line =~ m/([0-9]+)\s+(.*)/) {
|
|
my $sign_offs = $1;
|
|
$line = $2;
|
|
$count++;
|
|
if ($sign_offs < $email_git_min_signatures ||
|
|
$count > $email_git_max_maintainers ||
|
|
$sign_offs * 100 / $total_sign_offs < $email_git_min_percent) {
|
|
last;
|
|
}
|
|
}
|
|
push_email_address($line);
|
|
}
|
|
}
|
|
|
|
sub save_commits {
|
|
my ($cmd, @commits) = @_;
|
|
my $output;
|
|
my @lines = ();
|
|
|
|
$output = `${cmd}`;
|
|
|
|
@lines = split("\n", $output);
|
|
foreach my $line (@lines) {
|
|
if ($line =~ m/^(\w+) /) {
|
|
push (@commits, $1);
|
|
}
|
|
}
|
|
return @commits;
|
|
}
|
|
|
|
sub git_assign_blame {
|
|
my ($file) = @_;
|
|
|
|
my @lines = ();
|
|
my @commits = ();
|
|
my $cmd;
|
|
my $output;
|
|
my %hash;
|
|
my $total_sign_offs;
|
|
my $count;
|
|
|
|
if (@range) {
|
|
foreach my $file_range_diff (@range) {
|
|
next if (!($file_range_diff =~ m/(.+):(.+):(.+)/));
|
|
my $diff_file = $1;
|
|
my $diff_start = $2;
|
|
my $diff_length = $3;
|
|
next if (!("$file" eq "$diff_file"));
|
|
$cmd = "git blame -l -L $diff_start,+$diff_length $file\n";
|
|
@commits = save_commits($cmd, @commits);
|
|
}
|
|
} else {
|
|
if (-f $file) {
|
|
$cmd = "git blame -l $file\n";
|
|
@commits = save_commits($cmd, @commits);
|
|
}
|
|
}
|
|
|
|
$total_sign_offs = 0;
|
|
@commits = uniq(@commits);
|
|
foreach my $commit (@commits) {
|
|
$cmd = "git log -1 ${commit}";
|
|
$cmd .= " | grep -Ei \"^[-_ a-z]+by:.*\\\@.*\$\"";
|
|
if (!$email_git_penguin_chiefs) {
|
|
$cmd .= " | grep -Ev \"${penguin_chiefs}\"";
|
|
}
|
|
$cmd .= " | cut -f2- -d\":\"";
|
|
|
|
$output = `${cmd}`;
|
|
$output =~ s/^\s*//gm;
|
|
@lines = split("\n", $output);
|
|
$hash{$_}++ for @lines;
|
|
$total_sign_offs += @lines;
|
|
}
|
|
|
|
$count = 0;
|
|
foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
|
|
my $sign_offs = $hash{$line};
|
|
$count++;
|
|
last if ($sign_offs < $email_git_min_signatures ||
|
|
$count > $email_git_max_maintainers ||
|
|
$sign_offs * 100 / $total_sign_offs < $email_git_min_percent);
|
|
push_email_address($line);
|
|
}
|
|
}
|
|
|
|
sub uniq {
|
|
my @parms = @_;
|
|
|
|
my %saw;
|
|
@parms = grep(!$saw{$_}++, @parms);
|
|
return @parms;
|
|
}
|
|
|
|
sub sort_and_uniq {
|
|
my @parms = @_;
|
|
|
|
my %saw;
|
|
@parms = sort @parms;
|
|
@parms = grep(!$saw{$_}++, @parms);
|
|
return @parms;
|
|
}
|
|
|
|
sub output {
|
|
my @parms = @_;
|
|
|
|
if ($output_multiline) {
|
|
foreach my $line (@parms) {
|
|
print("${line}\n");
|
|
}
|
|
} else {
|
|
print(join($output_separator, @parms));
|
|
print("\n");
|
|
}
|
|
}
|
|
|
|
my $rfc822re;
|
|
|
|
sub make_rfc822re {
|
|
# Basic lexical tokens are specials, domain_literal, quoted_string, atom, and
|
|
# comment. We must allow for rfc822_lwsp (or comments) after each of these.
|
|
# This regexp will only work on addresses which have had comments stripped
|
|
# and replaced with rfc822_lwsp.
|
|
|
|
my $specials = '()<>@,;:\\\\".\\[\\]';
|
|
my $controls = '\\000-\\037\\177';
|
|
|
|
my $dtext = "[^\\[\\]\\r\\\\]";
|
|
my $domain_literal = "\\[(?:$dtext|\\\\.)*\\]$rfc822_lwsp*";
|
|
|
|
my $quoted_string = "\"(?:[^\\\"\\r\\\\]|\\\\.|$rfc822_lwsp)*\"$rfc822_lwsp*";
|
|
|
|
# Use zero-width assertion to spot the limit of an atom. A simple
|
|
# $rfc822_lwsp* causes the regexp engine to hang occasionally.
|
|
my $atom = "[^$specials $controls]+(?:$rfc822_lwsp+|\\Z|(?=[\\[\"$specials]))";
|
|
my $word = "(?:$atom|$quoted_string)";
|
|
my $localpart = "$word(?:\\.$rfc822_lwsp*$word)*";
|
|
|
|
my $sub_domain = "(?:$atom|$domain_literal)";
|
|
my $domain = "$sub_domain(?:\\.$rfc822_lwsp*$sub_domain)*";
|
|
|
|
my $addr_spec = "$localpart\@$rfc822_lwsp*$domain";
|
|
|
|
my $phrase = "$word*";
|
|
my $route = "(?:\@$domain(?:,\@$rfc822_lwsp*$domain)*:$rfc822_lwsp*)";
|
|
my $route_addr = "\\<$rfc822_lwsp*$route?$addr_spec\\>$rfc822_lwsp*";
|
|
my $mailbox = "(?:$addr_spec|$phrase$route_addr)";
|
|
|
|
my $group = "$phrase:$rfc822_lwsp*(?:$mailbox(?:,\\s*$mailbox)*)?;\\s*";
|
|
my $address = "(?:$mailbox|$group)";
|
|
|
|
return "$rfc822_lwsp*$address";
|
|
}
|
|
|
|
sub rfc822_strip_comments {
|
|
my $s = shift;
|
|
# Recursively remove comments, and replace with a single space. The simpler
|
|
# regexps in the Email Addressing FAQ are imperfect - they will miss escaped
|
|
# chars in atoms, for example.
|
|
|
|
while ($s =~ s/^((?:[^"\\]|\\.)*
|
|
(?:"(?:[^"\\]|\\.)*"(?:[^"\\]|\\.)*)*)
|
|
\((?:[^()\\]|\\.)*\)/$1 /osx) {}
|
|
return $s;
|
|
}
|
|
|
|
# valid: returns true if the parameter is an RFC822 valid address
|
|
#
|
|
sub rfc822_valid ($) {
|
|
my $s = rfc822_strip_comments(shift);
|
|
|
|
if (!$rfc822re) {
|
|
$rfc822re = make_rfc822re();
|
|
}
|
|
|
|
return $s =~ m/^$rfc822re$/so && $s =~ m/^$rfc822_char*$/;
|
|
}
|
|
|
|
# validlist: In scalar context, returns true if the parameter is an RFC822
|
|
# valid list of addresses.
|
|
#
|
|
# In list context, returns an empty list on failure (an invalid
|
|
# address was found); otherwise a list whose first element is the
|
|
# number of addresses found and whose remaining elements are the
|
|
# addresses. This is needed to disambiguate failure (invalid)
|
|
# from success with no addresses found, because an empty string is
|
|
# a valid list.
|
|
|
|
sub rfc822_validlist ($) {
|
|
my $s = rfc822_strip_comments(shift);
|
|
|
|
if (!$rfc822re) {
|
|
$rfc822re = make_rfc822re();
|
|
}
|
|
# * null list items are valid according to the RFC
|
|
# * the '1' business is to aid in distinguishing failure from no results
|
|
|
|
my @r;
|
|
if ($s =~ m/^(?:$rfc822re)?(?:,(?:$rfc822re)?)*$/so &&
|
|
$s =~ m/^$rfc822_char*$/) {
|
|
while ($s =~ m/(?:^|,$rfc822_lwsp*)($rfc822re)/gos) {
|
|
push @r, $1;
|
|
}
|
|
return wantarray ? (scalar(@r), @r) : 1;
|
|
}
|
|
else {
|
|
return wantarray ? () : 0;
|
|
}
|
|
}
|