I've used the following really simple AWK script to do a few simple
migrations (on hosts that were using qpopper and/or just plain unix
mail). It beats the hell out of Perl, especially for simplicty, though
it was also pretty speedy, given that it was forking a deliver process
per message.
#! /bin/sh
#
# unix2cyrus.sh - feed unix mailboxes to cyrus
#
# Here's a VERY simple little script to pipe individual messages from
# a unix mailbox format spool file into "deliver" so as to move that
# user's current incoming mail into their new Cyrus IMAPd "INBOX".
#
# WARNING: This script assumes the return-path header will be just one line.
#
# Usage: unix2cyrus /var/mail/USER
awk -v user=$(basename $1) '
BEGIN {
FS = " ";
pipe_cmd = "";
deliver_cmd = "/usr/cyrus/bin/deliver -q ";
last_line = "";
ret_path = "";
in_header = 1;
header[0] = "";
hc = 1;
}
$1 == "From" && last_line == "" {
close(pipe_cmd);
hc = 1;
in_header = 1;
ret_path = "root@localhost";
next;
}
in_header && $0 != "" {
if ($1 ~ /[Rr][Ee][Tt][Uu][Rr][Nn]-[Pp][Aa][Tt][Hh]:/) {
ret_path = $2;
gsub(/[<>]/, "", ret_path);
} else {
header[hc++] = $0;
}
next;
}
in_header && $0 == "" {
in_header = 0;
pipe_cmd = deliver_cmd "-f \"" ret_path "\" " user;
for (i = 1; i <= hc; i++) {
print header[i] | pipe_cmd;
}
print "" | pipe_cmd;
next;
}
! in_header {
last_line = $0;
print $0 | pipe_cmd;
}' $1
--
Greg A. Woods
H:+1 416 218-0098 W:+1 416 489-5852 x122 VE3TCP RoboHack <woods@xxxxxxxxxxx>
Planix, Inc. <woods@xxxxxxxxxx> Secrets of the Weird <woods@xxxxxxxxx>
----
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