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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 os import symlink

from spack import *


class Ds(AutotoolsPackage):
    """SAOImage DS9 is an astronomical imaging and data visualization
       application."""

    homepage = "http://ds9.si.edu/"
    url      = "http://ds9.si.edu/download/source/ds9.8.0.tar.gz"

    version('9.8.0', sha256='f3bdb46c1653997202f98c6f76632a4eb444707f4b64c14f8b96863d9c890304')

    depends_on('autoconf', type='build')
    depends_on('automake', type='build')
    depends_on('m4', type='build')
    depends_on('libtool', type='build')

    depends_on('libx11')
    depends_on('libxml2')
    depends_on('libxslt')
    depends_on('openssl')
    depends_on('tcl')
    depends_on('tcl-tclxml')
    depends_on('tk')

    def patch(self):
        # the package provides it's own TCL utilities
        # compiling and manually setting paths for all of them is contrived
        # (most of the utilities are small and not included in spack)

        # inject libxml, libxslt prefixes into configure search paths
        filter_file('/usr/bin/xml2-config',
                    join_path(self.spec['libxml2'].prefix, 'bin/xml2-config'),
                    'tclxml/configure', string=True)

        filter_file('/usr/bin/xslt-config',
                    join_path(self.spec['libxslt'].prefix, 'bin/xslt-config'),
                    'tclxml/configure', string=True)

        # symlink the master configure script into the source directory
        symlink('unix/configure', 'configure')

    def configure_args(self):
        srcdir = join_path(self.stage.source_path, 'unix')
        return ['--srcdir={0}'.format(srcdir)]

    def install(self, spec, prefix):
        # no install target provided in Makefile, install manually

        install_tree('bin', prefix.bin)
        install_tree('share', prefix.share)
        install_tree('lib', prefix.lib)