From: Tom Russello <tom.russe...@ensimag.grenoble-inp.fr>

This new option takes an email message file, parses it, fills the "To",
"Subject" and "Cc" fields appropriately and quote the message.
This option involves the `--compose` mode to edit the cover letter quoting the
given email.

Signed-off-by: Tom Russello <tom.russe...@grenoble-inp.org>
Signed-off-by: Samuel Groot <samuel.gr...@grenoble-inp.org>
Signed-off-by: Matthieu Moy <matthieu....@grenoble-inp.fr>

---

diff --git a/git-send-email.perl b/git-send-email.perl
index 6958785..784b8a6 100755
--- a/git-send-email.perl
+++ b/git-send-email.perl
@@ -55,6 +55,7 @@ git send-email --dump-aliases
     --[no-]bcc              <str>  * Email Bcc:
     --subject               <str>  * Email "Subject:"
     --in-reply-to           <str>  * Email "In-Reply-To:"
+    --quote-mail            <str>  * Email To, Cc and quote the message.
     --[no-]xmailer                 * Add "X-Mailer:" header (default).
     --[no-]annotate                * Review each patch that will be sent in an 
editor.
     --compose                      * Open an editor for introduction.
@@ -160,7 +161,7 @@ my $re_encoded_word = 
qr/=\?($re_token)\?($re_token)\?($re_encoded_text)\?=/;
 
 # Variables we fill in automatically, or via prompting:
 my (@to,$no_to,@initial_to,@cc,$no_cc,@initial_cc,@bcclist,$no_bcc,@xh,
-       $initial_reply_to,$initial_subject,@files,
+       $initial_reply_to,$quote_mail,$initial_subject,@files,
        $author,$sender,$smtp_authpass,$annotate,$use_xmailer,$compose,$time);
 
 my $envelope_sender;
@@ -304,6 +305,7 @@ $rc = GetOptions(
                    "sender|from=s" => \$sender,
                     "in-reply-to=s" => \$initial_reply_to,
                    "subject=s" => \$initial_subject,
+                   "quote-mail=s" => \$quote_mail,
                    "to=s" => \@initial_to,
                    "to-cmd=s" => \$to_cmd,
                    "no-to" => \$no_to,
@@ -638,6 +640,98 @@ if (@files) {
        print STDERR "\nNo patch files specified!\n\n";
        usage();
 }
+my $message_quoted;
+if ($quote_mail) {
+       $message_quoted = "";
+       my $error = validate_patch($quote_mail);
+       $error and die "fatal: $quote_mail: $error\nwarning: no patches were 
sent\n";
+       $compose = 1;
+       my @header = ();
+       open my $fh, "<", $quote_mail or die "can't open file $quote_mail";
+       while(<$fh>) {
+               #for files containing crlf line endings
+               $_=~ s/\r//g;
+               last if /^\s*$/;
+               if (/^\s+\S/ and @header) {
+                       chomp($header[$#header]);
+                       s/^\s+/ /;
+                       $header[$#header] .= $_;
+               } else {
+                       push(@header, $_);
+               }
+       }
+
+       foreach(@header) {
+               my $input_format;
+               my $initial_sender = $sender || $repoauthor || $repocommitter 
|| '';
+               if (/^From /) {
+                       $input_format = 'mbox';
+                       next;
+               }
+               chomp;
+               if (!defined $input_format && /^[-A-Za-z]+:\s/) {
+                       $input_format = 'mbox';
+               }
+
+               if (defined $input_format && $input_format eq 'mbox') {
+                       if (/^Subject:\s+(.*)$/i) {
+                               my $prefix_re = "";
+                               my $subject_re = $1;
+                               if ($1=~/^[^Re:]/) {
+                                       $prefix_re = "Re: ";
+                               }
+                               $initial_subject = $prefix_re.$subject_re;
+                       }
+                       elsif (/^From:\s+(.*)$/i) {
+                               push @initial_to, $1;
+                       }
+                       elsif (/^To:\s+(.*)$/i) {
+                               foreach my $addr (parse_address_line($1)) {
+                                       if (!($addr eq $initial_sender)) {
+                                               push @initial_to, $addr;
+                                       }
+                               }
+                       } elsif (/^Cc:\s+(.*)$/i) {
+                               foreach my $addr (parse_address_line($1)) {
+                                       my $qaddr = unquote_rfc2047($addr);
+                                       my $saddr = sanitize_address($qaddr);
+                                       if ($saddr eq $initial_sender) {
+                                               next if ($suppress_cc{'self'});
+                                       } else {
+                                               next if ($suppress_cc{'cc'});
+                                       }
+                                       push @initial_cc, $addr;
+                               }
+                       } elsif (/^Message-Id: (.*)/i) {
+                               $initial_reply_to = $1;
+                       }
+               } else {
+                       # In the traditional
+                       # "send lots of email" format,
+                       # line 1 = cc
+                       # line 2 = subject
+                       # So let's support that, too.
+                       $input_format = 'lots';
+                       if (@cc == 0 && !$suppress_cc{'cc'}) {
+                               push @cc, $_;
+                       } elsif (!defined $initial_subject) {
+                               $initial_subject = $_;
+                       }
+               }
+       }
+
+       #Message body
+       while (<$fh>) {
+               #for files containing crlf line endings
+               $_=~ s/\r//g;
+               my $space="";
+               if (/^[^>]/) {
+                       $space = " ";
+               }
+               $message_quoted .=  ">".$space.$_;
+       }
+
+}
 
 sub get_patch_subject {
        my $fn = shift;
@@ -664,6 +758,7 @@ if ($compose) {
        my $tpl_sender = $sender || $repoauthor || $repocommitter || '';
        my $tpl_subject = $initial_subject || '';
        my $tpl_reply_to = $initial_reply_to || '';
+       my $tpl_quote = $message_quoted || '';
 
        print $c <<EOT;
 From $tpl_sender # This line is ignored.
@@ -676,6 +771,8 @@ From: $tpl_sender
 Subject: $tpl_subject
 In-Reply-To: $tpl_reply_to
 
+$tpl_quote
+
 EOT
        for my $f (@files) {
                print $c get_patch_subject($f);
-- 
2.8.2

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