Initial duplicity automation script using expect (not finished)

config

set GOOGLE_ACCOUNT "foobar"

set GOOGLE_PASSWORD "foobar"

# # Watch out !!!
# # If you have a '$' in your passphrase, make sure you escape it with '\'
set GNUPG_PASSPHRASE "foobar"

set VERBOSITY_LEVEL 8

set GOOGLE_BACKUP_DIRECTORY "duplicity-backup"

set SOURCE "/Users/foobar/some_dir/"

duplicity-backup.sh

#!/usr/bin/expect

proc srcfile-safe {filename args} {
    global argv
    global GOOGLE_ACCOUNT GOOGLE_PASSWORD GNUPG_PASSPHRASE VERBOSITY_LEVEL GOOGLE_BACKUP_DIRECTORY SOURCE

    set save $argv
    set argv $args
    set rc [catch {source $filename} ret]
    set argv $save
    return -code $rc $ret
}

srcfile-safe config

spawn duplicity -v$VERBOSITY_LEVEL $SOURCE gdocs://$GOOGLE_ACCOUNT/$GOOGLE_BACKUP_DIRECTORY

expect "Password" { send "$GOOGLE_PASSWORD\r" }

expect "GnuPG passphrase:" { send "$GNUPG_PASSPHRASE\r" }

expect "Retype passphrase" { send "$GNUPG_PASSPHRASE\r" }

interact