# -*- mode: python; coding: utf-8 -*-

#

# Copyright (C) 2021 CONTACT Software GmbH

# https://www.contact-software.com/

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""Implementation of the java plugin for csspin"""

import os

import shutil

from csspin import config, die, echo, interpolate1, mv, setenv, warn

from path import Path

defaults = config(install_dir="{spin.data}/java")

def set_environment(cfg):

"""Set the environment variables needed for java"""

java_bin_dir = cfg.java.java_home / "bin"

setenv(

JAVA_HOME=cfg.java.java_home,

PATH=os.pathsep.join((java_bin_dir, "{PATH}")),

)

def configure(cfg):

"""Configure the java plugin"""

if cfg.java.use:

warn(f"java.version will be ignored, since java.use is set to '{cfg.java.use}'")

if java_path := shutil.which(interpolate1(cfg.java.use)):

# assuming java to be $JAVA_HOME/bin/java

cfg.java.java_home = Path(java_path).realpath().dirname().dirname()

else:

die(f"Could not find java executable '{cfg.java.use}'")

elif cfg.java.version:

cfg.java.java_home = Path(interpolate1(cfg.java.install_dir)) / str(

cfg.java.version

)

else:

die(

"'csspin_java.java' does not set a default version for java. "

"Set either 'java.version' or 'java.use'."

)

def provision(cfg):

"""Install java if it does not exist"""

if cfg.java.version and not (cfg.java.use or cfg.java.java_home.exists()):

from tempfile import TemporaryDirectory

import jdk

with TemporaryDirectory() as tmp_dir:

echo(f"Downloading JDK from {jdk.get_download_url(cfg.java.version)}")

jdk_path = jdk.install(cfg.java.version, path=Path(tmp_dir))

mv(jdk_path, cfg.java.java_home)

set_environment(cfg)

def init(cfg):

"""Initialize the environment"""

set_environment(cfg)