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