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# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack import *


class Ssmtp(AutotoolsPackage):
    """A program that replaces sendmail on workstations that should send their
    mail via the departmental mailhub from which they pick up their mail."""

    homepage = "https://salsa.debian.org/debian/ssmtp"
    url = "https://deb.debian.org/debian/pool/main/s/ssmtp/ssmtp_2.64.orig.tar.bz2"

    version('2.64', sha256='22c37dc90c871e8e052b2cab0ad219d010fa938608cd66b21c8f3c759046fa36')

    variant('ssl', default=True,
            description='Enable support for secure connection to mail server')
    variant('inet6', default=True,
            description='Enable support for IPv6 transport')
    variant('md5auth', default=True,
            description='Enable support for MD5 authentication')

    depends_on('libnsl')
    depends_on('openssl', when='+ssl')

    patch('install.patch')

    @when('+ssl')
    def setup_build_environment(self, env):
        # The configure script is generated with a very old version of
        # autoconf, which cannot accept LIBS as a command-line argument
        env.set('LIBS', self.spec['openssl'].libs.link_flags)

    def configure_args(self):
        args = self.enable_or_disable('ssl')
        args += self.enable_or_disable('inet6')
        args += self.enable_or_disable('md5auth')
        return args

    def install(self, spec, prefix):
        install_answers = [
            # Please enter the mail name of your system.
            # This is the hostname portion of the address to be shown
            # on outgoing news and mail messages headers.
            # The default is your system's host name.
            #
            # Mail name [system.host.name]:
            '\n',
            # Please enter the SMTP port number [25]:
            '\n'
        ]
        install_answers_filename = 'spack-install.in'
        with working_dir(self.build_directory):
            with open(install_answers_filename, 'w') as f:
                f.writelines(install_answers)
            make('install-sendmail', input=install_answers_filename)