Bach's (almost 17-M1) API

build.java

class build {
  public static void main(String... args) {
    var classes = Path.of(".bach/workspace/classes");
    var modules = Path.of(".bach/workspace/modules");
    try (var bach = Bach.of(args)) {
      Call.tool("javac")
          .with("--module", "com.greetings,org.astro")
          .with("--module-source-path", ".")
          .with("-d", classes)
          .run(bach, Run::requireSuccessful);

      Call.tool("directories", "clean", modules).run(bach, Run::requireSuccessful);

      Stream.of(
              Call.tool("jar")
                  .with("--create")
                  .with("--file", modules.resolve("com.greetings@99.jar"))
                  .with("--module-version", "99")
                  .with("--main-class", "com.greetings.Main")
                  .with("-C", classes.resolve("com.greetings"), "."),
              Call.tool("jar")
                  .with("--create")
                  .with("--file", modules.resolve("org.astro@99.jar"))
                  .with("--module-version", "99")
                  .with("-C", classes.resolve("org.astro"), "."))
          .parallel()
          .map(bach::run)
          .forEach(Run::requireSuccessful);

      Call.module(ModuleFinder.of(modules), "com.greetings")
          .run(
              bach,
              run -> run.output().lines().forEach(System.out::println),
              Run::requireSuccessful);
    }
  }
}