home-manager/modules/programs/java.nix

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2021-08-02 11:14:10 +02:00
# This module provides JAVA_HOME, with a different way to install java locally.
# This module is modified from the NixOS module `programs.java`
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.java;
in {
meta.maintainers = with maintainers; [ ShamrockLee ];
options = {
programs.java = {
enable = mkEnableOption "" // {
description = ''
Install the Java development kit and set the <envar>JAVA_HOME</envar>
variable.
'';
};
package = mkOption {
type = types.package;
default = pkgs.jdk;
defaultText = "pkgs.jdk";
description = ''
Java package to install. Typical values are
<literal>pkgs.jdk</literal> or <literal>pkgs.jre</literal>.
'';
};
};
};
config = mkIf cfg.enable {
home.packages = [ cfg.package ];
home.sessionVariables = {
JAVA_HOME = fileContents (pkgs.runCommandLocal "java-home" { } ''
source "${cfg.package}/nix-support/setup-hook"
echo "$JAVA_HOME" > $out
'');
};
};
}