bootstrap-build-environment/rpmsign.exp

#!/usr/bin/expect -f

set key [lindex $argv 0]
set password [lindex $argv 1]
set files [lrange $argv 2 end]

### rpm-sign.exp -- Sign RPMs by sending the passphrase.
spawn rpmsign --define "_gpg_name $key" --addsign {*}$files
expect {
    "Enter pass phrase: " {
        send -- "$password\r"
        exp_continue
    } eof
}