doytsujin / bach

🎼 Java Shell Builder - Build modular Java projects with JDK tools

Bach.java 11-ea - Java Shell Builder

Build modular Java projects with JDK Foundation Tools.

Features

• ☕ Java, pristine Java

  Describe your project in Java's syntax. No XML, no YML, no Z... nor any another programming language required.

• 🧩 Modules, modules, everywhere!

  Java modules as basic building blocks. Write module-info.java files to define main, test, and test-preview modules.

• 🚀 Zero-installation build mode

  jshell https://sormuras.de/bach/build - redirects to bach-build.jsh

Build Bach.java with Bach.java

• Install JDK 14 or newer
• Call java .bach/src/build/build/Bootstrap.java

install-jdk.sh

install-jdk.sh main purpose is to install the latest-and-greatest available OpenJDK release from jdk.java.net. Find a Travis CI matrix configuration at sormuras.github.io/.travis.yml.

Options of install-jdk.sh

-h|--help                 Displays this help
-d|--dry-run              Activates dry-run mode
-s|--silent               Displays no output
-e|--emit-java-home       Print value of "JAVA_HOME" to stdout (ignores silent mode)
-v|--verbose              Displays verbose output

-f|--feature 9|11|...|ea  JDK feature release number, defaults to "ea"
-o|--os linux-x64|osx-x64 Operating system identifier
-u|--url "https://..."    Use custom JDK archive (provided as .tar.gz file)
-w|--workspace PATH       Working directory defaults to user's ${HOME}
-t|--target PATH          Target directory, defaults to first real component of the tarball
-c|--cacerts              Link system CA certificates (currently only Debian/Ubuntu is supported)

How to set JAVA_HOME with install-jdk.sh

• Source install-jdk.sh into current shell to install latest OpenJDK and let it update JAVA_HOME and PATH environment variables:

  • source ./install-jdk.sh Caveat: if an error happens during script execution the calling shell will terminate

• Provide target directory path to use as JAVA_HOME:

  • JAVA_HOME=~/jdk && ./install-jdk.sh --target $JAVA_HOME && PATH=$JAVA_HOME/bin:$PATH

• Run install-jdk.sh in a sub-shell to install latest OpenJDK and emit the installation path to stdout:

  • JAVA_HOME=$(./install-jdk.sh --silent --emit-java-home)
  • JAVA_HOME=$(./install-jdk.sh --emit-java-home | tail --lines 1)

be free - have fun