Revision de5604231ce4bc8db1bc1dcd27d8540cbedf1518 authored by Nick Piggin on 01 February 2010, 11:24:18 UTC, committed by Linus Torvalds on 02 February 2010, 20:50:47 UTC
RCU list walking of the per-cpu vmap cache was broken. It did not use RCU primitives, and also the union of free_list and rcu_head is obviously wrong (because free_list is indeed the list we are RCU walking). While we are there, remove a couple of unused fields from an earlier iteration. These APIs aren't actually used anywhere, because of problems with the XFS conversion. Christoph has now verified that the problems are solved with these patches. Also it is an exported interface, so I think it will be good to be merged now (and Christoph wants to get the XFS changes into their local tree). Cc: stable@kernel.org Cc: linux-mm@kvack.org Tested-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Nick Piggin <npiggin@suse.de> -- Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 489b24f
get_maintainer.pl
#!/usr/bin/perl -w
# (c) 2007, Joe Perches <joe@perches.com>
# created from checkpatch.pl
#
# Print selected MAINTAINERS information for
# the files modified in a patch or for a file
#
# usage: perl scripts/get_maintainer.pl [OPTIONS] <patch>
# perl scripts/get_maintainer.pl [OPTIONS] -f <file>
#
# Licensed under the terms of the GNU GPL License version 2
use strict;
my $P = $0;
my $V = '0.23';
use Getopt::Long qw(:config no_auto_abbrev);
my $lk_path = "./";
my $email = 1;
my $email_usename = 1;
my $email_maintainer = 1;
my $email_list = 1;
my $email_subscriber_list = 0;
my $email_git_penguin_chiefs = 0;
my $email_git = 1;
my $email_git_blame = 0;
my $email_git_min_signatures = 1;
my $email_git_max_maintainers = 5;
my $email_git_min_percent = 5;
my $email_git_since = "1-year-ago";
my $email_hg_since = "-365";
my $email_remove_duplicates = 1;
my $output_multiline = 1;
my $output_separator = ", ";
my $output_roles = 0;
my $output_rolestats = 0;
my $scm = 0;
my $web = 0;
my $subsystem = 0;
my $status = 0;
my $keywords = 1;
my $from_filename = 0;
my $pattern_depth = 0;
my $version = 0;
my $help = 0;
my $exit = 0;
my @penguin_chief = ();
push(@penguin_chief,"Linus Torvalds:torvalds\@linux-foundation.org");
#Andrew wants in on most everything - 2009/01/14
#push(@penguin_chief,"Andrew Morton:akpm\@linux-foundation.org");
my @penguin_chief_names = ();
foreach my $chief (@penguin_chief) {
if ($chief =~ m/^(.*):(.*)/) {
my $chief_name = $1;
my $chief_addr = $2;
push(@penguin_chief_names, $chief_name);
}
}
my $penguin_chiefs = "\(" . join("|",@penguin_chief_names) . "\)";
# rfc822 email address - preloaded methods go here.
my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
my $rfc822_char = '[\\000-\\377]';
# VCS command support: class-like functions and strings
my %VCS_cmds;
my %VCS_cmds_git = (
"execute_cmd" => \&git_execute_cmd,
"available" => '(which("git") ne "") && (-d ".git")',
"find_signers_cmd" => "git log --since=\$email_git_since -- \$file",
"find_commit_signers_cmd" => "git log -1 \$commit",
"blame_range_cmd" => "git blame -l -L \$diff_start,+\$diff_length \$file",
"blame_file_cmd" => "git blame -l \$file",
"commit_pattern" => "^commit [0-9a-f]{40,40}",
"blame_commit_pattern" => "^([0-9a-f]+) "
);
my %VCS_cmds_hg = (
"execute_cmd" => \&hg_execute_cmd,
"available" => '(which("hg") ne "") && (-d ".hg")',
"find_signers_cmd" =>
"hg log --date=\$email_hg_since" .
" --template='commit {node}\\n{desc}\\n' -- \$file",
"find_commit_signers_cmd" => "hg log --template='{desc}\\n' -r \$commit",
"blame_range_cmd" => "", # not supported
"blame_file_cmd" => "hg blame -c \$file",
"commit_pattern" => "^commit [0-9a-f]{40,40}",
"blame_commit_pattern" => "^([0-9a-f]+):"
);
if (!GetOptions(
'email!' => \$email,
'git!' => \$email_git,
'git-blame!' => \$email_git_blame,
'git-chief-penguins!' => \$email_git_penguin_chiefs,
'git-min-signatures=i' => \$email_git_min_signatures,
'git-max-maintainers=i' => \$email_git_max_maintainers,
'git-min-percent=i' => \$email_git_min_percent,
'git-since=s' => \$email_git_since,
'hg-since=s' => \$email_hg_since,
'remove-duplicates!' => \$email_remove_duplicates,
'm!' => \$email_maintainer,
'n!' => \$email_usename,
'l!' => \$email_list,
's!' => \$email_subscriber_list,
'multiline!' => \$output_multiline,
'roles!' => \$output_roles,
'rolestats!' => \$output_rolestats,
'separator=s' => \$output_separator,
'subsystem!' => \$subsystem,
'status!' => \$status,
'scm!' => \$scm,
'web!' => \$web,
'pattern-depth=i' => \$pattern_depth,
'k|keywords!' => \$keywords,
'f|file' => \$from_filename,
'v|version' => \$version,
'h|help' => \$help,
)) {
die "$P: invalid argument - use --help if necessary\n";
}
if ($help != 0) {
usage();
exit 0;
}
if ($version != 0) {
print("${P} ${V}\n");
exit 0;
}
if ($#ARGV < 0) {
usage();
die "$P: argument missing: patchfile or -f file please\n";
}
if ($output_separator ne ", ") {
$output_multiline = 0;
}
if ($output_rolestats) {
$output_roles = 1;
}
my $selections = $email + $scm + $status + $subsystem + $web;
if ($selections == 0) {
usage();
die "$P: Missing required option: email, scm, status, subsystem or web\n";
}
if ($email &&
($email_maintainer + $email_list + $email_subscriber_list +
$email_git + $email_git_penguin_chiefs + $email_git_blame) == 0) {
usage();
die "$P: Please select at least 1 email option\n";
}
if (!top_of_kernel_tree($lk_path)) {
die "$P: The current directory does not appear to be "
. "a linux kernel source tree.\n";
}
## Read MAINTAINERS for type/value pairs
my @typevalue = ();
my %keyword_hash;
open(MAINT, "<${lk_path}MAINTAINERS") || die "$P: Can't open MAINTAINERS\n";
while (<MAINT>) {
my $line = $_;
if ($line =~ m/^(\C):\s*(.*)/) {
my $type = $1;
my $value = $2;
##Filename pattern matching
if ($type eq "F" || $type eq "X") {
$value =~ s@\.@\\\.@g; ##Convert . to \.
$value =~ s/\*/\.\*/g; ##Convert * to .*
$value =~ s/\?/\./g; ##Convert ? to .
##if pattern is a directory and it lacks a trailing slash, add one
if ((-d $value)) {
$value =~ s@([^/])$@$1/@;
}
} elsif ($type eq "K") {
$keyword_hash{@typevalue} = $value;
}
push(@typevalue, "$type:$value");
} elsif (!/^(\s)*$/) {
$line =~ s/\n$//g;
push(@typevalue, $line);
}
}
close(MAINT);
my %mailmap;
if ($email_remove_duplicates) {
open(MAILMAP, "<${lk_path}.mailmap") || warn "$P: Can't open .mailmap\n";
while (<MAILMAP>) {
my $line = $_;
next if ($line =~ m/^\s*#/);
next if ($line =~ m/^\s*$/);
my ($name, $address) = parse_email($line);
$line = format_email($name, $address, $email_usename);
next if ($line =~ m/^\s*$/);
if (exists($mailmap{$name})) {
my $obj = $mailmap{$name};
push(@$obj, $address);
} else {
my @arr = ($address);
$mailmap{$name} = \@arr;
}
}
close(MAILMAP);
}
## use the filenames on the command line or find the filenames in the patchfiles
my @files = ();
my @range = ();
my @keyword_tvi = ();
foreach my $file (@ARGV) {
##if $file is a directory and it lacks a trailing slash, add one
if ((-d $file)) {
$file =~ s@([^/])$@$1/@;
} elsif (!(-f $file)) {
die "$P: file '${file}' not found\n";
}
if ($from_filename) {
push(@files, $file);
if (-f $file && $keywords) {
open(FILE, "<$file") or die "$P: Can't open ${file}\n";
my $text = do { local($/) ; <FILE> };
foreach my $line (keys %keyword_hash) {
if ($text =~ m/$keyword_hash{$line}/x) {
push(@keyword_tvi, $line);
}
}
close(FILE);
}
} else {
my $file_cnt = @files;
my $lastfile;
open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
while (<PATCH>) {
my $patch_line = $_;
if (m/^\+\+\+\s+(\S+)/) {
my $filename = $1;
$filename =~ s@^[^/]*/@@;
$filename =~ s@\n@@;
$lastfile = $filename;
push(@files, $filename);
} elsif (m/^\@\@ -(\d+),(\d+)/) {
if ($email_git_blame) {
push(@range, "$lastfile:$1:$2");
}
} elsif ($keywords) {
foreach my $line (keys %keyword_hash) {
if ($patch_line =~ m/^[+-].*$keyword_hash{$line}/x) {
push(@keyword_tvi, $line);
}
}
}
}
close(PATCH);
if ($file_cnt == @files) {
warn "$P: file '${file}' doesn't appear to be a patch. "
. "Add -f to options?\n";
}
@files = sort_and_uniq(@files);
}
}
my @email_to = ();
my @list_to = ();
my @scm = ();
my @web = ();
my @subsystem = ();
my @status = ();
# Find responsible parties
foreach my $file (@files) {
my %hash;
my $tvi = find_first_section();
while ($tvi < @typevalue) {
my $start = find_starting_index($tvi);
my $end = find_ending_index($tvi);
my $exclude = 0;
my $i;
#Do not match excluded file patterns
for ($i = $start; $i < $end; $i++) {
my $line = $typevalue[$i];
if ($line =~ m/^(\C):\s*(.*)/) {
my $type = $1;
my $value = $2;
if ($type eq 'X') {
if (file_match_pattern($file, $value)) {
$exclude = 1;
}
}
}
}
if (!$exclude) {
for ($i = $start; $i < $end; $i++) {
my $line = $typevalue[$i];
if ($line =~ m/^(\C):\s*(.*)/) {
my $type = $1;
my $value = $2;
if ($type eq 'F') {
if (file_match_pattern($file, $value)) {
my $value_pd = ($value =~ tr@/@@);
my $file_pd = ($file =~ tr@/@@);
$value_pd++ if (substr($value,-1,1) ne "/");
if ($pattern_depth == 0 ||
(($file_pd - $value_pd) < $pattern_depth)) {
$hash{$tvi} = $value_pd;
}
}
}
}
}
}
$tvi += ($end - $start);
}
foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
add_categories($line);
}
if ($email && $email_git) {
vcs_file_signoffs($file);
}
if ($email && $email_git_blame) {
vcs_file_blame($file);
}
}
if ($keywords) {
@keyword_tvi = sort_and_uniq(@keyword_tvi);
foreach my $line (@keyword_tvi) {
add_categories($line);
}
}
if ($email) {
foreach my $chief (@penguin_chief) {
if ($chief =~ m/^(.*):(.*)/) {
my $email_address;
$email_address = format_email($1, $2, $email_usename);
if ($email_git_penguin_chiefs) {
push(@email_to, [$email_address, 'chief penguin']);
} else {
@email_to = grep($_->[0] !~ /${email_address}/, @email_to);
}
}
}
}
if ($email || $email_list) {
my @to = ();
if ($email) {
@to = (@to, @email_to);
}
if ($email_list) {
@to = (@to, @list_to);
}
output(merge_email(@to));
}
if ($scm) {
@scm = uniq(@scm);
output(@scm);
}
if ($status) {
@status = uniq(@status);
output(@status);
}
if ($subsystem) {
@subsystem = uniq(@subsystem);
output(@subsystem);
}
if ($web) {
@web = uniq(@web);
output(@web);
}
exit($exit);
sub file_match_pattern {
my ($file, $pattern) = @_;
if (substr($pattern, -1) eq "/") {
if ($file =~ m@^$pattern@) {
return 1;
}
} else {
if ($file =~ m@^$pattern@) {
my $s1 = ($file =~ tr@/@@);
my $s2 = ($pattern =~ tr@/@@);
if ($s1 == $s2) {
return 1;
}
}
}
return 0;
}
sub usage {
print <<EOT;
usage: $P [options] patchfile
$P [options] -f file|directory
version: $V
MAINTAINER field selection options:
--email => print email address(es) if any
--git => include recent git \*-by: signers
--git-chief-penguins => include ${penguin_chiefs}
--git-min-signatures => number of signatures required (default: 1)
--git-max-maintainers => maximum maintainers to add (default: 5)
--git-min-percent => minimum percentage of commits required (default: 5)
--git-blame => use git blame to find modified commits for patch or file
--git-since => git history to use (default: 1-year-ago)
--hg-since => hg history to use (default: -365)
--m => include maintainer(s) if any
--n => include name 'Full Name <addr\@domain.tld>'
--l => include list(s) if any
--s => include subscriber only list(s) if any
--remove-duplicates => minimize duplicate email names/addresses
--roles => show roles (status:subsystem, git-signer, list, etc...)
--rolestats => show roles and statistics (commits/total_commits, %)
--scm => print SCM tree(s) if any
--status => print status if any
--subsystem => print subsystem name if any
--web => print website(s) if any
Output type options:
--separator [, ] => separator for multiple entries on 1 line
using --separator also sets --nomultiline if --separator is not [, ]
--multiline => print 1 entry per line
Other options:
--pattern-depth => Number of pattern directory traversals (default: 0 (all))
--keywords => scan patch for keywords (default: 1 (on))
--version => show version
--help => show this help information
Default options:
[--email --git --m --n --l --multiline --pattern-depth=0 --remove-duplicates]
Notes:
Using "-f directory" may give unexpected results:
Used with "--git", git signators for _all_ files in and below
directory are examined as git recurses directories.
Any specified X: (exclude) pattern matches are _not_ ignored.
Used with "--nogit", directory is used as a pattern match,
no individual file within the directory or subdirectory
is matched.
Used with "--git-blame", does not iterate all files in directory
Using "--git-blame" is slow and may add old committers and authors
that are no longer active maintainers to the output.
Using "--roles" or "--rolestats" with git send-email --cc-cmd or any
other automated tools that expect only ["name"] <email address>
may not work because of additional output after <email address>.
Using "--rolestats" and "--git-blame" shows the #/total=% commits,
not the percentage of the entire file authored. # of commits is
not a good measure of amount of code authored. 1 major commit may
contain a thousand lines, 5 trivial commits may modify a single line.
If git is not installed, but mercurial (hg) is installed and an .hg
repository exists, the following options apply to mercurial:
--git,
--git-min-signatures, --git-max-maintainers, --git-min-percent, and
--git-blame
Use --hg-since not --git-since to control date selection
EOT
}
sub top_of_kernel_tree {
my ($lk_path) = @_;
if ($lk_path ne "" && substr($lk_path,length($lk_path)-1,1) ne "/") {
$lk_path .= "/";
}
if ( (-f "${lk_path}COPYING")
&& (-f "${lk_path}CREDITS")
&& (-f "${lk_path}Kbuild")
&& (-f "${lk_path}MAINTAINERS")
&& (-f "${lk_path}Makefile")
&& (-f "${lk_path}README")
&& (-d "${lk_path}Documentation")
&& (-d "${lk_path}arch")
&& (-d "${lk_path}include")
&& (-d "${lk_path}drivers")
&& (-d "${lk_path}fs")
&& (-d "${lk_path}init")
&& (-d "${lk_path}ipc")
&& (-d "${lk_path}kernel")
&& (-d "${lk_path}lib")
&& (-d "${lk_path}scripts")) {
return 1;
}
return 0;
}
sub parse_email {
my ($formatted_email) = @_;
my $name = "";
my $address = "";
if ($formatted_email =~ /^([^<]+)<(.+\@.*)>.*$/) {
$name = $1;
$address = $2;
} elsif ($formatted_email =~ /^\s*<(.+\@\S*)>.*$/) {
$address = $1;
} elsif ($formatted_email =~ /^(.+\@\S*).*$/) {
$address = $1;
}
$name =~ s/^\s+|\s+$//g;
$name =~ s/^\"|\"$//g;
$address =~ s/^\s+|\s+$//g;
if ($name =~ /[^a-z0-9 \.\-]/i) { ##has "must quote" chars
$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
$name = "\"$name\"";
}
return ($name, $address);
}
sub format_email {
my ($name, $address, $usename) = @_;
my $formatted_email;
$name =~ s/^\s+|\s+$//g;
$name =~ s/^\"|\"$//g;
$address =~ s/^\s+|\s+$//g;
if ($name =~ /[^a-z0-9 \.\-]/i) { ##has "must quote" chars
$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
$name = "\"$name\"";
}
if ($usename) {
if ("$name" eq "") {
$formatted_email = "$address";
} else {
$formatted_email = "$name <$address>";
}
} else {
$formatted_email = $address;
}
return $formatted_email;
}
sub find_first_section {
my $index = 0;
while ($index < @typevalue) {
my $tv = $typevalue[$index];
if (($tv =~ m/^(\C):\s*(.*)/)) {
last;
}
$index++;
}
return $index;
}
sub find_starting_index {
my ($index) = @_;
while ($index > 0) {
my $tv = $typevalue[$index];
if (!($tv =~ m/^(\C):\s*(.*)/)) {
last;
}
$index--;
}
return $index;
}
sub find_ending_index {
my ($index) = @_;
while ($index < @typevalue) {
my $tv = $typevalue[$index];
if (!($tv =~ m/^(\C):\s*(.*)/)) {
last;
}
$index++;
}
return $index;
}
sub get_maintainer_role {
my ($index) = @_;
my $i;
my $start = find_starting_index($index);
my $end = find_ending_index($index);
my $role;
my $subsystem = $typevalue[$start];
if (length($subsystem) > 20) {
$subsystem = substr($subsystem, 0, 17);
$subsystem =~ s/\s*$//;
$subsystem = $subsystem . "...";
}
for ($i = $start + 1; $i < $end; $i++) {
my $tv = $typevalue[$i];
if ($tv =~ m/^(\C):\s*(.*)/) {
my $ptype = $1;
my $pvalue = $2;
if ($ptype eq "S") {
$role = $pvalue;
}
}
}
$role = lc($role);
if ($role eq "supported") {
$role = "supporter";
} elsif ($role eq "maintained") {
$role = "maintainer";
} elsif ($role eq "odd fixes") {
$role = "odd fixer";
} elsif ($role eq "orphan") {
$role = "orphan minder";
} elsif ($role eq "obsolete") {
$role = "obsolete minder";
} elsif ($role eq "buried alive in reporters") {
$role = "chief penguin";
}
return $role . ":" . $subsystem;
}
sub get_list_role {
my ($index) = @_;
my $i;
my $start = find_starting_index($index);
my $end = find_ending_index($index);
my $subsystem = $typevalue[$start];
if (length($subsystem) > 20) {
$subsystem = substr($subsystem, 0, 17);
$subsystem =~ s/\s*$//;
$subsystem = $subsystem . "...";
}
if ($subsystem eq "THE REST") {
$subsystem = "";
}
return $subsystem;
}
sub add_categories {
my ($index) = @_;
my $i;
my $start = find_starting_index($index);
my $end = find_ending_index($index);
push(@subsystem, $typevalue[$start]);
for ($i = $start + 1; $i < $end; $i++) {
my $tv = $typevalue[$i];
if ($tv =~ m/^(\C):\s*(.*)/) {
my $ptype = $1;
my $pvalue = $2;
if ($ptype eq "L") {
my $list_address = $pvalue;
my $list_additional = "";
my $list_role = get_list_role($i);
if ($list_role ne "") {
$list_role = ":" . $list_role;
}
if ($list_address =~ m/([^\s]+)\s+(.*)$/) {
$list_address = $1;
$list_additional = $2;
}
if ($list_additional =~ m/subscribers-only/) {
if ($email_subscriber_list) {
push(@list_to, [$list_address, "subscriber list${list_role}"]);
}
} else {
if ($email_list) {
push(@list_to, [$list_address, "open list${list_role}"]);
}
}
} elsif ($ptype eq "M") {
my ($name, $address) = parse_email($pvalue);
if ($name eq "") {
if ($i > 0) {
my $tv = $typevalue[$i - 1];
if ($tv =~ m/^(\C):\s*(.*)/) {
if ($1 eq "P") {
$name = $2;
$pvalue = format_email($name, $address, $email_usename);
}
}
}
}
if ($email_maintainer) {
my $role = get_maintainer_role($i);
push_email_addresses($pvalue, $role);
}
} elsif ($ptype eq "T") {
push(@scm, $pvalue);
} elsif ($ptype eq "W") {
push(@web, $pvalue);
} elsif ($ptype eq "S") {
push(@status, $pvalue);
}
}
}
}
my %email_hash_name;
my %email_hash_address;
sub email_inuse {
my ($name, $address) = @_;
return 1 if (($name eq "") && ($address eq ""));
return 1 if (($name ne "") && exists($email_hash_name{$name}));
return 1 if (($address ne "") && exists($email_hash_address{$address}));
return 0;
}
sub push_email_address {
my ($line, $role) = @_;
my ($name, $address) = parse_email($line);
if ($address eq "") {
return 0;
}
if (!$email_remove_duplicates) {
push(@email_to, [format_email($name, $address, $email_usename), $role]);
} elsif (!email_inuse($name, $address)) {
push(@email_to, [format_email($name, $address, $email_usename), $role]);
$email_hash_name{$name}++;
$email_hash_address{$address}++;
}
return 1;
}
sub push_email_addresses {
my ($address, $role) = @_;
my @address_list = ();
if (rfc822_valid($address)) {
push_email_address($address, $role);
} elsif (@address_list = rfc822_validlist($address)) {
my $array_count = shift(@address_list);
while (my $entry = shift(@address_list)) {
push_email_address($entry, $role);
}
} else {
if (!push_email_address($address, $role)) {
warn("Invalid MAINTAINERS address: '" . $address . "'\n");
}
}
}
sub add_role {
my ($line, $role) = @_;
my ($name, $address) = parse_email($line);
my $email = format_email($name, $address, $email_usename);
foreach my $entry (@email_to) {
if ($email_remove_duplicates) {
my ($entry_name, $entry_address) = parse_email($entry->[0]);
if ($name eq $entry_name || $address eq $entry_address) {
if ($entry->[1] eq "") {
$entry->[1] = "$role";
} else {
$entry->[1] = "$entry->[1],$role";
}
}
} else {
if ($email eq $entry->[0]) {
if ($entry->[1] eq "") {
$entry->[1] = "$role";
} else {
$entry->[1] = "$entry->[1],$role";
}
}
}
}
}
sub which {
my ($bin) = @_;
foreach my $path (split(/:/, $ENV{PATH})) {
if (-e "$path/$bin") {
return "$path/$bin";
}
}
return "";
}
sub mailmap {
my (@lines) = @_;
my %hash;
foreach my $line (@lines) {
my ($name, $address) = parse_email($line);
if (!exists($hash{$name})) {
$hash{$name} = $address;
} elsif ($address ne $hash{$name}) {
$address = $hash{$name};
$line = format_email($name, $address, $email_usename);
}
if (exists($mailmap{$name})) {
my $obj = $mailmap{$name};
foreach my $map_address (@$obj) {
if (($map_address eq $address) &&
($map_address ne $hash{$name})) {
$line = format_email($name, $hash{$name}, $email_usename);
}
}
}
}
return @lines;
}
sub git_execute_cmd {
my ($cmd) = @_;
my @lines = ();
my $output = `$cmd`;
$output =~ s/^\s*//gm;
@lines = split("\n", $output);
return @lines;
}
sub hg_execute_cmd {
my ($cmd) = @_;
my @lines = ();
my $output = `$cmd`;
@lines = split("\n", $output);
return @lines;
}
sub vcs_find_signers {
my ($cmd) = @_;
my @lines = ();
my $commits;
@lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
my $pattern = $VCS_cmds{"commit_pattern"};
$commits = grep(/$pattern/, @lines); # of commits
@lines = grep(/^[-_ a-z]+by:.*\@.*$/i, @lines);
if (!$email_git_penguin_chiefs) {
@lines = grep(!/${penguin_chiefs}/i, @lines);
}
# cut -f2- -d":"
s/.*:\s*(.+)\s*/$1/ for (@lines);
## Reformat email addresses (with names) to avoid badly written signatures
foreach my $line (@lines) {
my ($name, $address) = parse_email($line);
$line = format_email($name, $address, 1);
}
return ($commits, @lines);
}
sub vcs_save_commits {
my ($cmd) = @_;
my @lines = ();
my @commits = ();
@lines = &{$VCS_cmds{"execute_cmd"}}($cmd);
foreach my $line (@lines) {
if ($line =~ m/$VCS_cmds{"blame_commit_pattern"}/) {
push(@commits, $1);
}
}
return @commits;
}
sub vcs_blame {
my ($file) = @_;
my $cmd;
my @commits = ();
return @commits if (!(-f $file));
if (@range && $VCS_cmds{"blame_range_cmd"} eq "") {
my @all_commits = ();
$cmd = $VCS_cmds{"blame_file_cmd"};
$cmd =~ s/(\$\w+)/$1/eeg; #interpolate $cmd
@all_commits = vcs_save_commits($cmd);
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" ne "$diff_file");
for (my $i = $diff_start; $i < $diff_start + $diff_length; $i++) {
push(@commits, $all_commits[$i]);
}
}
} elsif (@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" ne "$diff_file");
$cmd = $VCS_cmds{"blame_range_cmd"};
$cmd =~ s/(\$\w+)/$1/eeg; #interpolate $cmd
push(@commits, vcs_save_commits($cmd));
}
} else {
$cmd = $VCS_cmds{"blame_file_cmd"};
$cmd =~ s/(\$\w+)/$1/eeg; #interpolate $cmd
@commits = vcs_save_commits($cmd);
}
return @commits;
}
my $printed_novcs = 0;
sub vcs_exists {
%VCS_cmds = %VCS_cmds_git;
return 1 if eval $VCS_cmds{"available"};
%VCS_cmds = %VCS_cmds_hg;
return 1 if eval $VCS_cmds{"available"};
%VCS_cmds = ();
if (!$printed_novcs) {
warn("$P: No supported VCS found. Add --nogit to options?\n");
warn("Using a git repository produces better results.\n");
warn("Try Linus Torvalds' latest git repository using:\n");
warn("git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git\n");
$printed_novcs = 1;
}
return 0;
}
sub vcs_assign {
my ($role, $divisor, @lines) = @_;
my %hash;
my $count = 0;
return if (@lines <= 0);
if ($divisor <= 0) {
warn("Bad divisor in " . (caller(0))[3] . ": $divisor\n");
$divisor = 1;
}
if ($email_remove_duplicates) {
@lines = mailmap(@lines);
}
@lines = sort(@lines);
# uniq -c
$hash{$_}++ for @lines;
# sort -rn
foreach my $line (sort {$hash{$b} <=> $hash{$a}} keys %hash) {
my $sign_offs = $hash{$line};
my $percent = $sign_offs * 100 / $divisor;
$percent = 100 if ($percent > 100);
$count++;
last if ($sign_offs < $email_git_min_signatures ||
$count > $email_git_max_maintainers ||
$percent < $email_git_min_percent);
push_email_address($line, '');
if ($output_rolestats) {
my $fmt_percent = sprintf("%.0f", $percent);
add_role($line, "$role:$sign_offs/$divisor=$fmt_percent%");
} else {
add_role($line, $role);
}
}
}
sub vcs_file_signoffs {
my ($file) = @_;
my @signers = ();
my $commits;
return if (!vcs_exists());
my $cmd = $VCS_cmds{"find_signers_cmd"};
$cmd =~ s/(\$\w+)/$1/eeg; # interpolate $cmd
($commits, @signers) = vcs_find_signers($cmd);
vcs_assign("commit_signer", $commits, @signers);
}
sub vcs_file_blame {
my ($file) = @_;
my @signers = ();
my @commits = ();
my $total_commits;
return if (!vcs_exists());
@commits = vcs_blame($file);
@commits = uniq(@commits);
$total_commits = @commits;
foreach my $commit (@commits) {
my $commit_count;
my @commit_signers = ();
my $cmd = $VCS_cmds{"find_commit_signers_cmd"};
$cmd =~ s/(\$\w+)/$1/eeg; #interpolate $cmd
($commit_count, @commit_signers) = vcs_find_signers($cmd);
push(@signers, @commit_signers);
}
if ($from_filename) {
vcs_assign("commits", $total_commits, @signers);
} else {
vcs_assign("modified commits", $total_commits, @signers);
}
}
sub uniq {
my (@parms) = @_;
my %saw;
@parms = grep(!$saw{$_}++, @parms);
return @parms;
}
sub sort_and_uniq {
my (@parms) = @_;
my %saw;
@parms = sort @parms;
@parms = grep(!$saw{$_}++, @parms);
return @parms;
}
sub merge_email {
my @lines;
my %saw;
for (@_) {
my ($address, $role) = @$_;
if (!$saw{$address}) {
if ($output_roles) {
push(@lines, "$address ($role)");
} else {
push(@lines, $address);
}
$saw{$address} = 1;
}
}
return @lines;
}
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;
}
return wantarray ? () : 0;
}
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