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# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.


# Java detection
# ========================================================
option(
    "--with-java-bin-path",
    nargs=1,
    help="Location of Java binaries",
)


@depends("--with-java-bin-path", host, toolchains_base_dir)
@imports(_from="mozboot.android", _import="JavaLocationFailedException")
@imports(_from="mozboot.android", _import="locate_java_bin_path")
@imports(_from="os", _import="environ")
@imports(_from="os.path", _import="dirname")
def java_search_paths(path, host, toolchains_base_dir):
    if path:
        # Look for javac and jar in the specified path.
        return path

    try:
        path = locate_java_bin_path(host.kernel, toolchains_base_dir)

        java_home = environ.get("JAVA_HOME")
        if java_home and java_home != dirname(path):
            log.info(
                "Ignoring JAVA_HOME value. Use --with-java-bin-path "
                "to override the default Java location."
            )
        return [path]
    except JavaLocationFailedException as e:
        die(str(e))


# Finds the given java tool, failing with a custom error message if we can't
# find it.


@template
def check_java_tool(tool):
    check = check_prog(
        tool.upper(), (tool,), paths=java_search_paths, allow_missing=True
    )

    @depends(check)
    def require_tool(result):
        if result is None:
            die(
                "The program %s was not found. Use '--with-java-bin-path={java-bin-dir}'"
                % tool
            )
        return result

    return require_tool


check_java_tool("java")


# Java Code Coverage
# ========================================================
option(
    "--enable-java-coverage",
    env="MOZ_JAVA_CODE_COVERAGE",
    help="Enable Java code coverage",
)

set_config(
    "MOZ_JAVA_CODE_COVERAGE", depends("--enable-java-coverage")(lambda v: bool(v))
)