gpg-mail-tube: New feature --as-attach.

* tools/gpg-mail-tube.c (oAsAttach): NEw.
(opts): Add --as-attach.
(opt): Add .as_attach.
(parse_arguments): Set it.
(mail_tube_encrypt): Detect plain text and hhandle new option.

1 files changed, 11 insertions, 2 deletions

diff --git a/doc/tools.texi b/doc/tools.texi
index 75765b5c3..6e95a81a3 100644
--- a/doc/tools.texi
+++ b/doc/tools.texi
@@ -2171,10 +2171,10 @@ gpgtar --list-archive test1
 @c
 @manpage gpg-mail-tube.1
 @node gpg-mail-tube
-@section Encrypt rfc822 formated mail in a pipeline
+@section Encrypt rfc822 formatted mail in a pipeline
 @ifset manverb
 .B gpg-mail-tube
-\- Encrypt rfc822 formated mail in a pipeline
+\- Encrypt rfc822 formatted mail in a pipeline
 @end ifset
 
 @mansect synopsis
@@ -2229,6 +2229,15 @@ Put the given environment string into the environment of this process
 and of the called gpg.  This option is required if there is no other
 way to set the environemt.
 
+@item --as-attach
+@itemx -a
+@opindex as-attach
+Do not write a PGP/MIME mail but emit a simple body along with an
+attachment containing the encrypted body of the input mail.  If the
+input was a plain text message a simple encrypted file will be
+attached.  If the input was a multipart MIME message the encrypted
+file is of type message/rfc822.
+
 @item --gpg @var{gpgcmd}
 @opindex gpg
 Use the specified command @var{gpgcmd} instead of @command{gpg}.