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# Copyright 2013-2023 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)

import os.path

from spack.package import *


class Snpeff(Package, SourceforgePackage):
    """SnpEff is a variant annotation and effect prediction tool. It
    annotates and predicts the effects of genetic variants (such as
    amino acid changes)."""

    homepage = "http://snpeff.sourceforge.net/"
    sourceforge_mirror_path = "snpeff/snpEff_latest_core.zip"

    version(
        "2017-11-24", sha256="d55a7389a78312947c1e7dadf5e6897b42d3c6e942e7c1b8ec68bb35d2ae2244"
    )

    depends_on("java", type=("build", "run"))

    def install(self, spec, prefix):
        install_tree("snpEff", prefix.bin)

        # Set up a helper script to call java on the jar files,
        # explicitly codes the path for java and the jar files.
        scripts = ["snpEff", "SnpSift"]

        for script in scripts:
            script_sh = join_path(os.path.dirname(__file__), script + ".sh")
            script_path = join_path(prefix.bin, script)
            install(script_sh, script_path)
            set_executable(script_path)

            # Munge the helper script to explicitly point to java and the
            # jar file.
            java = self.spec["java"].prefix.bin.java
            kwargs = {"backup": False}
            filter_file("^java", java, script_path, **kwargs)
            filter_file(
                script + ".jar", join_path(prefix.bin, script + ".jar"), script_path, **kwargs
            )