How to build Minie from source

Minie is free, open-source software.

While pre-built artifacts can be downloaded from GitHub and the Maven Central Repository, some people prefer to build them from source.

You can also build a local copy of the documentation (website content). This is useful if you are editing the content, or if your Internet access is limited or unreliable.

Library artifacts

Standard build

The standard build of the Minie library includes a non-debug, single-precision native library for each of the 13 platforms Minie supports.

Here’s the recommended procedure:

  1. Install a Java Development Kit (JDK), if you don’t already have one.

  2. Point the JAVA_HOME environment variable to your JDK installation: (The path might be something like "C:\Program Files\Java\jre1.8.0_301" or "/usr/lib/jvm/java-8-openjdk-amd64/" or "/Library/Java/JavaVirtualMachines/liberica-jdk-17-full.jdk/Contents/Home" .)

    1. using Bash or Zsh: export JAVA_HOME=" path to installation "

    2. using Fish: set -g JAVA_HOME " path to installation "

    3. using Windows Command Prompt: set JAVA_HOME=" path to installation "

    4. using PowerShell: $env:JAVA_HOME = ' path to installation '

  3. Download and extract the Minie source code from GitHub:

    1. using Git:

      1. git clone https://github.com/stephengold/Minie.git

      2. cd Minie

      3. git checkout -b latest 8.1.0

    2. using a web browser:

      1. browse to https://github.com/stephengold/Minie/releases/latest

      2. follow the "Source code (zip)" link

      3. save the ZIP file

      4. extract the contents of the saved ZIP file

      5. cd to the extracted directory

  4. Run the Gradle wrapper to build the entire project:

    1. using Bash or Fish or PowerShell or Zsh: ./gradlew build

    2. using Windows Command Prompt: .\gradlew build

After a successful build, artifacts will be found in the "MinieLibrary/build/libs" directory.

Quicker builds

In addition to the library, the Minie project includes subprojects for assets and applications that take time to build. To save time, you can build just the library subproject:

  • using Bash or Fish or PowerShell or Zsh: ./gradlew :MinieLibrary:build

  • using Windows Command Prompt: .\gradlew :MinieLibrary:build

To save even more time, you can skip the automated tests:

  • using Bash or Fish or PowerShell or Zsh: ./gradlew :MinieLibrary:assemble

  • using Windows Command Prompt: .\gradlew :MinieLibrary:assemble

Install artifacts

You can install the built artifacts to your local Maven repository:

  • using Bash or Fish or PowerShell or Zsh: ./gradlew install

  • using Windows Command Prompt: .\gradlew install

Cleanup

After a build, you can restore the project to a pristine state:

  • using Bash or Fish or PowerShell or Zsh: ./gradlew clean

  • using Windows Command Prompt: .\gradlew clean

Customizing native libraries

The standard build is very convenient. However, it’s sub-optimal for many situations.

Debug builds

During application development, debug-enabled native libraries should be used. Most Minie releases provide a "+debug" build of the library for this purpose. You can replicate it by adding the "-Pbtdebug" option to the build command:

  • using Bash or Fish or PowerShell or Zsh: ./gradlew -Pbtdebug clean build

  • using Windows Command Prompt: .\gradlew -Pbtdebug clean build

Don’t confuse the "-Pbtdebug" option with "-Pdebug", which had special significance to certain old versions of Gradle.

Double-precision builds

Some applications may benefit from double-precision native libraries. Most Minie releases provide "+dp" and "+debugdp" builds of the library, which you can replicate by adding the "-Pdp" option to the build command.

Multithreaded builds

Some applications may benefit from multithreaded native libraries. Some Minie releases provide "+mt" builds of the library, which you can replicate by specifying the "-Pmt" option in the build command.

Reduced builds

Supporting 13 platforms requires 13 native libraries, which results in a big, fat JAR and (potentially) a bloated application. To address bloat, most Minie releases provide reduced builds that don’t support all 13 platforms. These include:

  • a "+big4" build (built with the "-Pbig4" option) with support for just the 4 major desktop platforms (Linux64, MacOSX64, MacOSX_ARM64, and Windows64)

  • a "+bare" build (built with the "-Pbare" option) which doesn’t include any native libraries

  • a "+droid" build (built with the "-Pdroid" option) with support for just the 4 Android platforms

Further customization

You can customize Minie to include precisely the native libraries you need.

To configure which native libraries will be included in the JAR, edit the "MinieLibrary/build.gradle" script. Look for the section where the btf variables are set. It should look something like this:

btfAndroid_ARM7 = 'ReleaseSp'
btfAndroid_ARM8 = 'ReleaseSp'
btfAndroid_X86 = 'ReleaseSp'
btfAndroid_X86_64 = 'ReleaseSp'
btfLinux32 = 'ReleaseSp'
btfLinux64 = 'ReleaseSp'
btfLinux_ARM32 = 'hfReleaseSp'
btfLinux_ARM64 = 'ReleaseSp'
btfMacOSX32 = 'ReleaseSp'
btfMacOSX64 = 'ReleaseSp'
btfMacOSX_ARM64 = 'ReleaseSp'
btfWindows32 = 'ReleaseSp'
btfWindows64 = 'ReleaseSp'

For example, to include only the 64-bit Linux native library, change the other btf variables to '' and rebuild:

btfAndroid_ARM7 = ''
btfAndroid_ARM8 = ''
btfAndroid_X86 = ''
btfAndroid_X86_64 = ''
btfLinux32 = ''
btfLinux64 = 'ReleaseSp'
btfLinux_ARM32 = ''
btfLinux_ARM64 = ''
btfMacOSX32 = ''
btfMacOSX64 = ''
btfMacOSX_ARM64 = ''
btfWindows32 = ''
btfWindows64 = ''

Similarly, you could customize Minie with the debug-enabled native library for a specific platform:

btfAndroid_ARM7 = ''
btfAndroid_ARM8 = ''
btfAndroid_X86 = ''
btfAndroid_X86_64 = ''
btfLinux32 = ''
btfLinux64 = ''
btfLinux_ARM32 = ''
btfLinux_ARM64 = ''
btfMacOSX32 = ''
btfMacOSX64 = ''
btfMacOSX_ARM64 = ''
btfWindows32 = ''
btfWindows64 = 'DebugSp'

Similarly, you can specify double-precision (Dp-flavored) native libraries for specific platforms:

btfAndroid_ARM7 = ''
btfAndroid_ARM8 = ''
btfAndroid_X86 = ''
btfAndroid_X86_64 = ''
btfLinux32 = ''
btfLinux64 = 'ReleaseDp'
btfLinux_ARM32 = ''
btfLinux_ARM64 = ''
btfMacOSX32 = ''
btfMacOSX64 = 'ReleaseDp'
btfMacOSX_ARM64 = 'ReleaseDp'
btfWindows32 = ''
btfWindows64 = 'ReleaseDp'

Native libraries aren’t published for every possible combination of options. For instance, if you want Dp native libraries for Android platforms, you’ll probably have to build them yourself. For more information, see the Libbulletjme project.

Website content

  1. Download and extract the source code from GitHub:

    1. git clone https://github.com/stephengold/Minie.git

    2. cd Minie

  2. Edit "src/site/antora/playbook.yml" and replace "/home/sgold/NetBeansProjects/Minie" with an absolute path to your checkout directory (3 places).

  3. Install Node.js

  4. Run Antora:

    1. npx antora src/site/antora/playbook.yml

After a successful build, the local copy of the site will be found in the "build/site" directory.