git-send-email-script

   1 #!/usr/bin/perl -w
   2 #
   3 # Copyright 2002,2005 Greg Kroah-Hartman <greg@kroah.com>
   4 # Copyright 2005 Ryan Anderson <ryan@michonline.com>
   5 #
   6 # GPL v2 (See COPYING)
   7 #
   8 # Ported to support git "mbox" format files by Ryan Anderson <ryan@michonline.com>
   9 #
  10 # Sends a collection of emails to the given email addresses, disturbingly fast.
  11 #
  12 # Supports two formats:
  13 # 1. mbox format files (ignoring most headers and MIME formatting - this is designed for sending patches)
  14 # 2. The original format support by Greg's script:
  15 #    first line of the message is who to CC,
  16 #    and second line is the subject of the message.
  17 #
  18
  19 use strict;
  20 use warnings;
  21 use Term::ReadLine;
  22 use Mail::Sendmail qw(sendmail %mailcfg);
  23 use Getopt::Long;
  24 use Data::Dumper;
  25 use Email::Valid;
  26
  27 # Variables we fill in automatically, or via prompting:
  28 my (@to,@cc,$initial_reply_to,$initial_subject,@files,$from);
  29
  30 # Behavior modification variables
  31 my ($chain_reply_to, $smtp_server) = (1, "localhost");
  32
  33 # Example reply to:
  34 #$initial_reply_to = ''; #<20050203173208.GA23964@foobar.com>';
  35
  36 my $term = new Term::ReadLine 'git-send-email';
  37
  38 # Begin by accumulating all the variables (defined above), that we will end up
  39 # needing, first, from the command line:
  40
  41 my $rc = GetOptions("from=s" => \$from,
  42                     "in-reply-to=s" => \$initial_reply_to,
  43                     "subject=s" => \$initial_subject,
  44                     "to=s" => \@to,
  45                     "chain-reply-to!" => \$chain_reply_to,
  46                     "smtp-server=s" => \$smtp_server,
  47          );
  48
  49 # Now, let's fill any that aren't set in with defaults:
  50
  51 open(GITVAR,"-|","git-var","-l")
  52         or die "Failed to open pipe from git-var: $!";
  53
  54 my ($author,$committer);
  55 while(<GITVAR>) {
  56         chomp;
  57         my ($var,$data) = split /=/,$_,2;
  58         my @fields = split /\s+/, $data;
  59
  60         my $ident = join(" ", @fields[0...(@fields-3)]);
  61
  62         if ($var eq 'GIT_AUTHOR_IDENT') {
  63                 $author = $ident;
  64         } elsif ($var eq 'GIT_COMMITTER_IDENT') {
  65                 $committer = $ident;
  66         }
  67 }
  68 close(GITVAR);
  69
  70
  71 if (!defined $from) {
  72         $from = $author || $committer;
  73         do {
  74                 $_ = $term->readline("Who should the emails appear to be from? ",
  75                         $from);
  76         } while (!defined $_);
  77
  78         $from = $_;
  79         print "Emails will be sent from: ", $from, "\n";
  80 }
  81
  82 if (!@to) {
  83         do {
  84                 $_ = $term->readline("Who should the emails be sent to? ",
  85                                 "");
  86         } while (!defined $_);
  87         my $to = $_;
  88         push @to, split /,/, $to;
  89 }
  90
  91 if (!defined $initial_subject) {
  92         do {
  93                 $_ = $term->readline("What subject should the emails start with? ",
  94                         $initial_subject);
  95         } while (!defined $_);
  96         $initial_subject = $_;
  97 }
  98
  99 if (!defined $initial_reply_to) {
 100         do {
 101                 $_= $term->readline("Message-ID to be used as In-Reply-To? ",
 102                         $initial_reply_to);
 103         } while (!defined $_);
 104
 105         $initial_reply_to = $_;
 106         $initial_reply_to =~ s/(^\s+|\s+$)//g;
 107 }
 108
 109 if (!defined $smtp_server) {
 110         $smtp_server = "localhost";
 111 }
 112
 113 # Now that all the defaults are set, process the rest of the command line
 114 # arguments and collect up the files that need to be processed.
 115 for my $f (@ARGV) {
 116         if (-d $f) {
 117                 opendir(DH,$f)
 118                         or die "Failed to opendir $f: $!";
 119
 120                 push @files, grep { -f $_ } map { +$f . "/" . $_ }
 121                                 sort readdir(DH);
 122
 123         } elsif (-f $f) {
 124                 push @files, $f;
 125
 126         } else {
 127                 print STDERR "Skipping $f - not found.\n";
 128         }
 129 }
 130
 131 if (@files) {
 132         print $_,"\n" for @files;
 133 } else {
 134         print <<EOT;
 135 git-send-email-script [options] <file | directory> [... file | directory ]
 136 Options:
 137    --from         Specify the "From:" line of the email to be sent.
 138    --to           Specify the primary "To:" line of the email.
 139    --subject      Specify the initial "Subject:" line.
 140    --in-reply-to  Specify the first "In-Reply-To:" header line.
 141    --chain-reply-to If set, the replies will all be to the first
 142                   email sent, rather than to the last email sent.
 143    --smtp-server  If set, specifies the outgoing SMTP server to use.
 144                   Defaults to localhost.
 145
 146 Error: Please specify a file or a directory on the command line.
 147 EOT
 148         exit(1);
 149 }
 150
 151 # Variables we set as part of the loop over files
 152 our ($message_id, $cc, %mail, $subject, $reply_to, $message);
 153
 154
 155 # Usually don't need to change anything below here.
 156
 157 # we make a "fake" message id by taking the current number
 158 # of seconds since the beginning of Unix time and tacking on
 159 # a random number to the end, in case we are called quicker than
 160 # 1 second since the last time we were called.
 161
 162 # We'll setup a template for the message id, using the "from" address:
 163 my $message_id_from = Email::Valid->address($from);
 164 my $message_id_template = "<%s-git-send-email-$from>";
 165
 166 sub make_message_id
 167 {
 168         my $date = `date "+\%s"`;
 169         chomp($date);
 170         my $pseudo_rand = int (rand(4200));
 171         $message_id = sprintf $message_id_template, "$date$pseudo_rand";
 172         #print "new message id = $message_id\n"; # Was useful for debugging
 173 }
 174
 175
 176
 177 $cc = "";
 178
 179 sub send_message
 180 {
 181         my %to;
 182         $to{lc(Email::Valid->address($_))}++ for (@to);
 183
 184         my $to = join(",", keys %to);
 185
 186         %mail = (       To      =>      $to,
 187                         From    =>      $from,
 188                         CC      =>      $cc,
 189                         Subject =>      $subject,
 190                         Message =>      $message,
 191                         'Reply-to'      =>      $from,
 192                         'In-Reply-To'   =>      $reply_to,
 193                         'Message-ID'    =>      $message_id,
 194                         'X-Mailer'      =>      "git-send-email-script",
 195                 );
 196
 197         $mail{smtp} = $smtp_server;
 198         $mailcfg{mime} = 0;
 199
 200         #print Data::Dumper->Dump([\%mail],[qw(*mail)]);
 201
 202         sendmail(%mail) or die $Mail::Sendmail::error;
 203
 204         print "OK. Log says:\n", $Mail::Sendmail::log;
 205         print "\n\n"
 206 }
 207
 208
 209 $reply_to = $initial_reply_to;
 210 make_message_id();
 211 $subject = $initial_subject;
 212
 213 foreach my $t (@files) {
 214         my $F = $t;
 215         open(F,"<",$t) or die "can't open file $t";
 216
 217         @cc = ();
 218         my $found_mbox = 0;
 219         my $header_done = 0;
 220         $message = "";
 221         while(<F>) {
 222                 if (!$header_done) {
 223                         $found_mbox = 1, next if (/^From /);
 224                         chomp;
 225
 226                         if ($found_mbox) {
 227                                 if (/^Subject:\s+(.*)$/) {
 228                                         $subject = $1;
 229
 230                                 } elsif (/^(Cc|From):\s+(.*)$/) {
 231                                         printf("(mbox) Adding cc: %s from line '%s'\n",
 232                                                 $2, $_);
 233                                         push @cc, $2;
 234                                 }
 235
 236                         } else {
 237                                 # In the traditional
 238                                 # "send lots of email" format,
 239                                 # line 1 = cc
 240                                 # line 2 = subject
 241                                 # So let's support that, too.
 242                                 if (@cc == 0) {
 243                                         printf("(non-mbox) Adding cc: %s from line '%s'\n",
 244                                                 $_, $_);
 245
 246                                         push @cc, $_;
 247
 248                                 } elsif (!defined $subject) {
 249                                         $subject = $_;
 250                                 }
 251                         }
 252
 253                         # A whitespace line will terminate the headers
 254                         if (m/^\s*$/) {
 255                                 $header_done = 1;
 256                         }
 257                 } else {
 258                         $message .=  $_;
 259                         if (/^Signed-off-by: (.*)$/i) {
 260                                 my $c = $1;
 261                                 chomp $c;
 262                                 push @cc, $c;
 263                                 printf("(sob) Adding cc: %s from line '%s'\n",
 264                                         $c, $_);
 265                         }
 266                 }
 267         }
 268         close F;
 269
 270         my %clean_ccs;
 271         $clean_ccs{lc(Email::Valid->address($_))}++ for @cc;
 272
 273         $cc = join(",", keys %clean_ccs);
 274
 275         send_message();
 276
 277         # set up for the next message
 278         if ($chain_reply_to || length($reply_to) == 0) {
 279                 $reply_to = $message_id;
 280         }
 281         make_message_id();
 282 #       $subject = "Re: ".$initial_subject;
 283 }