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80 lines
2.8 KiB
Markdown
80 lines
2.8 KiB
Markdown
# Java Bindings Developer documents.
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This document is meant to anyone looking to build the Java bindings from source, test a build locally and perform a release.
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## Building locally
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Maven is the build tool used by the project. Maven version of 3.8 or higher is recommended. Make sure the **mvn**
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is available on the command path.
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The project builds to Java version 11 target so make sure that a JDK at version 11 or newer is installed.
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### Setting up location of native shared libraries
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The property **native.libs.location** in pom.xml may need to be set:
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```
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<properties>
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...
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<native.libs.location>C:\Users\felix\dev\gpt4all_java_bins\release_1_1_3_Jun22_2023</native.libs.location>
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</properties>
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```
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All the native shared libraries bundled with the Java binding jar will be copied from this location.
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The directory structure is **native/linux**, **native/macos**, **native/windows**. These directories are copied
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into the **src/main/resources** folder during the build process.
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For the purposes of local testing, none of these directories have to be present or just one OS type may be present.
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If none of the native libraries are present in **native.libs.location** the shared libraries will be searched for
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in location path set by **LLModel.LIBRARY_SEARCH_PATH** static variable in Java source code that is using the bindings.
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Alternately you can copy the shared libraries into the **src/resources/native/linux** before
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you build, but note **src/main/resources/native** is on the .gitignore, so it will not be committed to sources.
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### Building
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To package the bindings jar run:
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```
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mvn package
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```
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This will build two jars. One has only the Java bindings and the other is a fat jar that will have required dependencies included as well.
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To package and install the Java bindings to your local maven repository run:
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```
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mvn install
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```
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### Using in a sample application
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You can check out a sample project that uses the java bindings here:
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https://github.com/felix-zaslavskiy/gpt4all-java-bindings-sample.git
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1. First, update the dependency of java bindings to whatever you have installed in local repository such as **1.1.4-SNAPSHOT**
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2. Second, update **Main.java** and set **baseModelPath** to the correct location of model weight files.
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3. To make a runnable jar run:
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```
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mvn package
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```
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A fat jar is also created which is easy to run from command line:
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```
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java -jar target/gpt4all-java-bindings-sample-1.0-SNAPSHOT-jar-with-dependencies.jar
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```
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### Publish a public release.
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For publishing a new version to maven central repository requires password and signing keys which F.Z. currently maintains, so
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he is responsible for making a public release.
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The procedure is as follows:
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For a snapshot release
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Run:
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```
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mvn deploy -P signing-profile
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```
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For a non-snapshot release
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Run:
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```
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mvn clean deploy -P signing-profile,release
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``` |