nixpkgs/pkgs/development/compilers/openjdk/tests/hello.nix
2021-04-28 21:01:46 +02:00

42 lines
809 B
Nix

{ jdk
, jre
, pkgs
}:
/* 'Hello world' Java application derivation for use in tests */
let
source = pkgs.writeTextDir "src/Hello.java" ''
class Hello {
public static void main(String[] args) {
System.out.println("Hello, world!");
}
}
'';
in
pkgs.stdenv.mkDerivation {
pname = "hello";
version = "1.0.0";
src = source;
buildPhase = ''
runHook preBuildPhase
${jdk}/bin/javac src/Hello.java
runHook postBuildPhase
'';
installPhase = ''
runHook preInstallPhase
mkdir -p $out/lib
cp src/Hello.class $out/lib
mkdir -p $out/bin
cat >$out/bin/hello <<EOF;
#!/usr/bin/env sh
${jre}/bin/java -cp $out/lib Hello
EOF
chmod a+x $out/bin/hello
runHook postInstallPhase
'';
}