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Gitnuro/DEVELOPMENT.md

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Developing Gitnuro

Requirements

  • JDK 17 or higher: You don't need this if you only use the JDK installed by IntelliJ IDEA. If you want to build using the CLI, check this section.
  • Rust: Gitnuro is mainly written in Kotlin (JVM) but also uses Rust for some specific tasks. To set up your Rust environment, please read its documentation. cargo and rustc must be available in the path in order to build Gitnuro properly.
  • cargo-kotars: A tool to run autogenerated bindings from Rust to Kotlin. You can install it using cargo install cargo-kotars --git https://github.com/JetpackDuba/kotars
  • Perl: Perl is required to build openssl (which is required for LibSSH to work).
  • Packages for Linux ARM64/aarch64: You need to install the aarch64-linux-gnu-gcc package to cross compile the Rust components to ARM from x86_64. You will also need to use rustup to add a new target: rustup target add aarch64-unknown-linux-gnu

Setting up an IDE

If you don't have another preference, the recommendation is to download and install IntelliJ IDEA Community Edition (possibly through the JetBrains Toolbox, if you have it already). The recommended plugins to improve the DX are:

By default, the JDK used by "IntelliJ IDEA Community Edition (2023.1.3)" is "JetBrains Runtime version 21" which is not currently supported by the project.

Alternative: Setting up JDK for use on CLI

You don't need this if you only use the JDK installed by IntelliJ IDEA and build using the IDE.

Check which Java version this project currently uses (cat build.gradle.kts | grep JavaLanguageVersion) and install it. For instance on Debian-based systems, you'd run:

sudo apt install openjdk-17-jre openjdk-17-jdk
export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64

Once it works (e.g. ./gradlew build). On Linux, you may want to add that latter line to your /etc/environment or user-specific files such as .profile or .bashrc.

Running the app / unit tests

From the "Gradle" window in the IDE, under "Tasks" select "compose desktop > run" or "verification > test" for the main app or unit tests, respectively, and run it. Next time, it will already be in the "Run Configurations" at the top right of the IDE, so you won't have to open the "Gradle" window again. You can also run these in debug mode and set break points in the code.

Alternatively on CLI: ./gradlew run or ./gradlew test.