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Installing Bach

This document describes common ways to install Bach.

Bach is usually installed as source code relative to each project's root directory. The default directory path is .bach/src/run/bach.

Prerequisite

  • JDK 22 or higher

Install Bach using JShell

Install Bach using jshell by running the snippets from the default installation script. The https://install.bach.run URL forwards to the "install default version of Bach into .bach directory of the current working directory" Java Shell script.

mkdir example && cd example
jshell
/open https://install.bach.run

Above's commands are a shortcut for the following Java Shell commands and snippets.

mkdir example && cd example
jshell
/open https://src.bach.run/Bach.java
Bach.init()
/exit

Consult Bach.java's source and documentation for customizing the installation process.

Install Bach using Git

Install Bach using git and create java's argument file manually.

First time:

mkdir example && cd example
git init
git submodule add https://github.com/sormuras/run.bach .bach/src/run/bach
echo .bach/src/run/bach/Main.java > bach

Consult the following manual pages for details of git and java tools:

  • git init - Create an empty Git repository or reinitialize an existing one
  • git submodule - Initialize, update or inspect submodules
  • java @file - Java Command-Line Argument Files

Subsequent times:

cd example
git submodule update --remote --recursive

Play with Bach

Running a tool via the ToolProvider SPI.

  • java @bach jar --version

Running a tool via the ProcessBuilder API.

  • java @bach jcmd -l

Running a tool via the ToolInstaller API.

  • java @bach https://src.bach.run/Hi.java Lo