git/git-send-email.perl
J. Bruce Fields abec100c33 Make git-send-email aware of Cc: lines.
In the Linux kernel, for example, it's common to include Cc: lines
for cases when you want to remember to cc someone on a patch without
necessarily claiming they signed off on it.  Make git-send-email
aware of these.

Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-18 21:10:03 -07:00

633 lines
16 KiB
Perl
Executable File

#!/usr/bin/perl -w
#
# Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
# Copyright 2005 Ryan Anderson <ryan@michonline.com>
#
# GPL v2 (See COPYING)
#
# Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
#
# Sends a collection of emails to the given email addresses, disturbingly fast.
#
# Supports two formats:
# 1. mbox format files (ignoring most headers and MIME formatting - this is designed for sending patches)
# 2. The original format support by Greg's script:
# first line of the message is who to CC,
# and second line is the subject of the message.
#
use strict;
use warnings;
use Term::ReadLine;
use Getopt::Long;
use Data::Dumper;
use Git;
package FakeTerm;
sub new {
my ($class, $reason) = @_;
return bless \$reason, shift;
}
sub readline {
my $self = shift;
die "Cannot use readline on FakeTerm: $$self";
}
package main;
sub usage {
print <<EOT;
git-send-email [options] <file | directory>...
Options:
--from Specify the "From:" line of the email to be sent.
--to Specify the primary "To:" line of the email.
--cc Specify an initial "Cc:" list for the entire series
of emails.
--bcc Specify a list of email addresses that should be Bcc:
on all the emails.
--compose Use \$EDITOR to edit an introductory message for the
patch series.
--subject Specify the initial "Subject:" line.
Only necessary if --compose is also set. If --compose
is not set, this will be prompted for.
--in-reply-to Specify the first "In-Reply-To:" header line.
Only used if --compose is also set. If --compose is not
set, this will be prompted for.
--chain-reply-to If set, the replies will all be to the previous
email sent, rather than to the first email sent.
Defaults to on.
--no-signed-off-cc Suppress the automatic addition of email addresses
that appear in Signed-off-by: or Cc: lines to the cc:
list. Note: Using this option is not recommended.
--smtp-server If set, specifies the outgoing SMTP server to use.
Defaults to localhost.
--suppress-from Suppress sending emails to yourself if your address
appears in a From: line.
--quiet Make git-send-email less verbose. One line per email
should be all that is output.
EOT
exit(1);
}
# most mail servers generate the Date: header, but not all...
sub format_2822_time {
my ($time) = @_;
my @localtm = localtime($time);
my @gmttm = gmtime($time);
my $localmin = $localtm[1] + $localtm[2] * 60;
my $gmtmin = $gmttm[1] + $gmttm[2] * 60;
if ($localtm[0] != $gmttm[0]) {
die "local zone differs from GMT by a non-minute interval\n";
}
if ((($gmttm[6] + 1) % 7) == $localtm[6]) {
$localmin += 1440;
} elsif ((($gmttm[6] - 1) % 7) == $localtm[6]) {
$localmin -= 1440;
} elsif ($gmttm[6] != $localtm[6]) {
die "local time offset greater than or equal to 24 hours\n";
}
my $offset = $localmin - $gmtmin;
my $offhour = $offset / 60;
my $offmin = abs($offset % 60);
if (abs($offhour) >= 24) {
die ("local time offset greater than or equal to 24 hours\n");
}
return sprintf("%s, %2d %s %d %02d:%02d:%02d %s%02d%02d",
qw(Sun Mon Tue Wed Thu Fri Sat)[$localtm[6]],
$localtm[3],
qw(Jan Feb Mar Apr May Jun
Jul Aug Sep Oct Nov Dec)[$localtm[4]],
$localtm[5]+1900,
$localtm[2],
$localtm[1],
$localtm[0],
($offset >= 0) ? '+' : '-',
abs($offhour),
$offmin,
);
}
my $have_email_valid = eval { require Email::Valid; 1 };
my $smtp;
sub unique_email_list(@);
sub cleanup_compose_files();
# Constants (essentially)
my $compose_filename = ".msg.$$";
# Variables we fill in automatically, or via prompting:
my (@to,@cc,@initial_cc,@bcclist,@xh,
$initial_reply_to,$initial_subject,@files,$from,$compose,$time);
# Behavior modification variables
my ($chain_reply_to, $quiet, $suppress_from, $no_signed_off_cc,
$dry_run) = (1, 0, 0, 0, 0);
my $smtp_server;
# Example reply to:
#$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
my $repo = Git->repository();
my $term = eval {
new Term::ReadLine 'git-send-email';
};
if ($@) {
$term = new FakeTerm "$@: going non-interactive";
}
my $def_chain = $repo->config_boolean('sendemail.chainreplyto');
if ($def_chain and $def_chain eq 'false') {
$chain_reply_to = 0;
}
@bcclist = $repo->config('sendemail.bcc');
if (!@bcclist or !$bcclist[0]) {
@bcclist = ();
}
# Begin by accumulating all the variables (defined above), that we will end up
# needing, first, from the command line:
my $rc = GetOptions("from=s" => \$from,
"in-reply-to=s" => \$initial_reply_to,
"subject=s" => \$initial_subject,
"to=s" => \@to,
"cc=s" => \@initial_cc,
"bcc=s" => \@bcclist,
"chain-reply-to!" => \$chain_reply_to,
"smtp-server=s" => \$smtp_server,
"compose" => \$compose,
"quiet" => \$quiet,
"suppress-from" => \$suppress_from,
"no-signed-off-cc|no-signed-off-by-cc" => \$no_signed_off_cc,
"dry-run" => \$dry_run,
);
unless ($rc) {
usage();
}
# Verify the user input
foreach my $entry (@to) {
die "Comma in --to entry: $entry'\n" unless $entry !~ m/,/;
}
foreach my $entry (@initial_cc) {
die "Comma in --cc entry: $entry'\n" unless $entry !~ m/,/;
}
foreach my $entry (@bcclist) {
die "Comma in --bcclist entry: $entry'\n" unless $entry !~ m/,/;
}
# Now, let's fill any that aren't set in with defaults:
my ($author) = $repo->ident_person('author');
my ($committer) = $repo->ident_person('committer');
my %aliases;
my @alias_files = $repo->config('sendemail.aliasesfile');
my $aliasfiletype = $repo->config('sendemail.aliasfiletype');
my %parse_alias = (
# multiline formats can be supported in the future
mutt => sub { my $fh = shift; while (<$fh>) {
if (/^alias\s+(\S+)\s+(.*)$/) {
my ($alias, $addr) = ($1, $2);
$addr =~ s/#.*$//; # mutt allows # comments
# commas delimit multiple addresses
$aliases{$alias} = [ split(/\s*,\s*/, $addr) ];
}}},
mailrc => sub { my $fh = shift; while (<$fh>) {
if (/^alias\s+(\S+)\s+(.*)$/) {
# spaces delimit multiple addresses
$aliases{$1} = [ split(/\s+/, $2) ];
}}},
pine => sub { my $fh = shift; while (<$fh>) {
if (/^(\S+)\s+(.*)$/) {
$aliases{$1} = [ split(/\s*,\s*/, $2) ];
}}},
gnus => sub { my $fh = shift; while (<$fh>) {
if (/\(define-mail-alias\s+"(\S+?)"\s+"(\S+?)"\)/) {
$aliases{$1} = [ $2 ];
}}}
);
if (@alias_files and $aliasfiletype and defined $parse_alias{$aliasfiletype}) {
foreach my $file (@alias_files) {
open my $fh, '<', $file or die "opening $file: $!\n";
$parse_alias{$aliasfiletype}->($fh);
close $fh;
}
}
my $prompting = 0;
if (!defined $from) {
$from = $author || $committer;
do {
$_ = $term->readline("Who should the emails appear to be from? [$from] ");
} while (!defined $_);
$from = $_ if ($_);
print "Emails will be sent from: ", $from, "\n";
$prompting++;
}
if (!@to) {
do {
$_ = $term->readline("Who should the emails be sent to? ",
"");
} while (!defined $_);
my $to = $_;
push @to, split /,/, $to;
$prompting++;
}
sub expand_aliases {
my @cur = @_;
my @last;
do {
@last = @cur;
@cur = map { $aliases{$_} ? @{$aliases{$_}} : $_ } @last;
} while (join(',',@cur) ne join(',',@last));
return @cur;
}
@to = expand_aliases(@to);
@initial_cc = expand_aliases(@initial_cc);
@bcclist = expand_aliases(@bcclist);
if (!defined $initial_subject && $compose) {
do {
$_ = $term->readline("What subject should the emails start with? ",
$initial_subject);
} while (!defined $_);
$initial_subject = $_;
$prompting++;
}
if (!defined $initial_reply_to && $prompting) {
do {
$_= $term->readline("Message-ID to be used as In-Reply-To for the first email? ",
$initial_reply_to);
} while (!defined $_);
$initial_reply_to = $_;
$initial_reply_to =~ s/(^\s+|\s+$)//g;
}
if (!$smtp_server) {
$smtp_server = $repo->config('sendemail.smtpserver');
}
if (!$smtp_server) {
foreach (qw( /usr/sbin/sendmail /usr/lib/sendmail )) {
if (-x $_) {
$smtp_server = $_;
last;
}
}
$smtp_server ||= 'localhost'; # could be 127.0.0.1, too... *shrug*
}
if ($compose) {
# Note that this does not need to be secure, but we will make a small
# effort to have it be unique
open(C,">",$compose_filename)
or die "Failed to open for writing $compose_filename: $!";
print C "From $from # This line is ignored.\n";
printf C "Subject: %s\n\n", $initial_subject;
printf C <<EOT;
GIT: Please enter your email below.
GIT: Lines beginning in "GIT: " will be removed.
GIT: Consider including an overall diffstat or table of contents
GIT: for the patch you are writing.
EOT
close(C);
my $editor = $ENV{EDITOR};
$editor = 'vi' unless defined $editor;
system($editor, $compose_filename);
open(C2,">",$compose_filename . ".final")
or die "Failed to open $compose_filename.final : " . $!;
open(C,"<",$compose_filename)
or die "Failed to open $compose_filename : " . $!;
while(<C>) {
next if m/^GIT: /;
print C2 $_;
}
close(C);
close(C2);
do {
$_ = $term->readline("Send this email? (y|n) ");
} while (!defined $_);
if (uc substr($_,0,1) ne 'Y') {
cleanup_compose_files();
exit(0);
}
@files = ($compose_filename . ".final");
}
# Now that all the defaults are set, process the rest of the command line
# arguments and collect up the files that need to be processed.
for my $f (@ARGV) {
if (-d $f) {
opendir(DH,$f)
or die "Failed to opendir $f: $!";
push @files, grep { -f $_ } map { +$f . "/" . $_ }
sort readdir(DH);
} elsif (-f $f) {
push @files, $f;
} else {
print STDERR "Skipping $f - not found.\n";
}
}
if (@files) {
unless ($quiet) {
print $_,"\n" for (@files);
}
} else {
print STDERR "\nNo patch files specified!\n\n";
usage();
}
# Variables we set as part of the loop over files
our ($message_id, $cc, %mail, $subject, $reply_to, $references, $message);
sub extract_valid_address {
my $address = shift;
my $local_part_regexp = '[^<>"\s@]+';
my $domain_regexp = '[^.<>"\s@]+(?:\.[^.<>"\s@]+)+';
# check for a local address:
return $address if ($address =~ /^($local_part_regexp)$/);
if ($have_email_valid) {
return scalar Email::Valid->address($address);
} else {
# less robust/correct than the monster regexp in Email::Valid,
# but still does a 99% job, and one less dependency
$address =~ /($local_part_regexp\@$domain_regexp)/;
return $1;
}
}
# Usually don't need to change anything below here.
# we make a "fake" message id by taking the current number
# of seconds since the beginning of Unix time and tacking on
# a random number to the end, in case we are called quicker than
# 1 second since the last time we were called.
# We'll setup a template for the message id, using the "from" address:
my $message_id_from = extract_valid_address($from);
my $message_id_template = "<%s-git-send-email-$message_id_from>";
sub make_message_id
{
my $date = time;
my $pseudo_rand = int (rand(4200));
$message_id = sprintf $message_id_template, "$date$pseudo_rand";
#print "new message id = $message_id\n"; # Was useful for debugging
}
$cc = "";
$time = time - scalar $#files;
sub unquote_rfc2047 {
local ($_) = @_;
if (s/=\?utf-8\?q\?(.*)\?=/$1/g) {
s/_/ /g;
s/=([0-9A-F]{2})/chr(hex($1))/eg;
}
return "$_";
}
sub send_message
{
my @recipients = unique_email_list(@to);
my $to = join (",\n\t", @recipients);
@recipients = unique_email_list(@recipients,@cc,@bcclist);
my $date = format_2822_time($time++);
my $gitversion = '@@GIT_VERSION@@';
if ($gitversion =~ m/..GIT_VERSION../) {
$gitversion = Git::version();
}
my ($author_name) = ($from =~ /^(.*?)\s+</);
if ($author_name && $author_name =~ /\./ && $author_name !~ /^".*"$/) {
my ($name, $addr) = ($from =~ /^(.*?)(\s+<.*)/);
$from = "\"$name\"$addr";
}
my $header = "From: $from
To: $to
Cc: $cc
Subject: $subject
Date: $date
Message-Id: $message_id
X-Mailer: git-send-email $gitversion
";
if ($reply_to) {
$header .= "In-Reply-To: $reply_to\n";
$header .= "References: $references\n";
}
if (@xh) {
$header .= join("\n", @xh) . "\n";
}
if ($dry_run) {
# We don't want to send the email.
} elsif ($smtp_server =~ m#^/#) {
my $pid = open my $sm, '|-';
defined $pid or die $!;
if (!$pid) {
exec($smtp_server,'-i',
map { extract_valid_address($_) }
@recipients) or die $!;
}
print $sm "$header\n$message";
close $sm or die $?;
} else {
require Net::SMTP;
$smtp ||= Net::SMTP->new( $smtp_server );
$smtp->mail( $from ) or die $smtp->message;
$smtp->to( @recipients ) or die $smtp->message;
$smtp->data or die $smtp->message;
$smtp->datasend("$header\n$message") or die $smtp->message;
$smtp->dataend() or die $smtp->message;
$smtp->ok or die "Failed to send $subject\n".$smtp->message;
}
if ($quiet) {
printf "Sent %s\n", $subject;
} else {
print "OK. Log says:\nDate: $date\n";
if ($smtp) {
print "Server: $smtp_server\n";
} else {
print "Sendmail: $smtp_server\n";
}
print "From: $from\nSubject: $subject\nCc: $cc\nTo: $to\n\n";
if ($smtp) {
print "Result: ", $smtp->code, ' ',
($smtp->message =~ /\n([^\n]+\n)$/s), "\n";
} else {
print "Result: OK\n";
}
}
}
$reply_to = $initial_reply_to;
$references = $initial_reply_to || '';
make_message_id();
$subject = $initial_subject;
foreach my $t (@files) {
open(F,"<",$t) or die "can't open file $t";
my $author_not_sender = undef;
@cc = @initial_cc;
@xh = ();
my $input_format = undef;
my $header_done = 0;
$message = "";
while(<F>) {
if (!$header_done) {
if (/^From /) {
$input_format = 'mbox';
next;
}
chomp;
if (!defined $input_format && /^[-A-Za-z]+:\s/) {
$input_format = 'mbox';
}
if (defined $input_format && $input_format eq 'mbox') {
if (/^Subject:\s+(.*)$/) {
$subject = $1;
} elsif (/^(Cc|From):\s+(.*)$/) {
if ($2 eq $from) {
next if ($suppress_from);
}
elsif ($1 eq 'From') {
$author_not_sender = $2;
}
printf("(mbox) Adding cc: %s from line '%s'\n",
$2, $_) unless $quiet;
push @cc, $2;
}
elsif (!/^Date:\s/ && /^[-A-Za-z]+:\s+\S/) {
push @xh, $_;
}
} else {
# In the traditional
# "send lots of email" format,
# line 1 = cc
# line 2 = subject
# So let's support that, too.
$input_format = 'lots';
if (@cc == 0) {
printf("(non-mbox) Adding cc: %s from line '%s'\n",
$_, $_) unless $quiet;
push @cc, $_;
} elsif (!defined $subject) {
$subject = $_;
}
}
# A whitespace line will terminate the headers
if (m/^\s*$/) {
$header_done = 1;
}
} else {
$message .= $_;
if (/^(Signed-off-by|Cc): (.*)$/i && !$no_signed_off_cc) {
my $c = $2;
chomp $c;
push @cc, $c;
printf("(sob) Adding cc: %s from line '%s'\n",
$c, $_) unless $quiet;
}
}
}
close F;
if (defined $author_not_sender) {
$author_not_sender = unquote_rfc2047($author_not_sender);
$message = "From: $author_not_sender\n\n$message";
}
$cc = join(", ", unique_email_list(@cc));
send_message();
# set up for the next message
if ($chain_reply_to || !defined $reply_to || length($reply_to) == 0) {
$reply_to = $message_id;
if (length $references > 0) {
$references .= " $message_id";
} else {
$references = "$message_id";
}
}
make_message_id();
}
if ($compose) {
cleanup_compose_files();
}
sub cleanup_compose_files() {
unlink($compose_filename, $compose_filename . ".final");
}
$smtp->quit if $smtp;
sub unique_email_list(@) {
my %seen;
my @emails;
foreach my $entry (@_) {
if (my $clean = extract_valid_address($entry)) {
$seen{$clean} ||= 0;
next if $seen{$clean}++;
push @emails, $entry;
} else {
print STDERR "W: unable to extract a valid address",
" from: $entry\n";
}
}
return @emails;
}