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# Frege Gradle Plugin
Simplifies setting up your Frege project.
## Installation
You need `java >= 11`.
```bash
git clone https://github.com/tricktron/frege-gradle-plugin.git
./gradlew publishToMavenLocal
```
## How to Use
1. Specify the frege compiler release, version, main module and repl source file in your `build.gradle`:
```groovy
frege {
version = '3.25.84'
release = '3.25alpha'
mainModule = 'my.mod.Name' // see runFrege task
replSource = 'Name.fr' // see replFrege task
}
```
See the [Frege Releases](https://github.com/Frege/frege/releases) for all available versions.
Optional configuration parameters inside `build.gradle`:
- compilerDownloadDir: defaults to `<projectRoot>/lib`
- mainSourceDir: defaults to `<projectRoot>/src/main/frege`
- outputDir: defaults to `<projectRoot>/build/classes/main/frege`
- compilerFlags: defaults to `['-O', '-make']`
### Added Tasks
- **setupFrege**: Downloads the specified version of the Frege compiler.
- **compileFrege**: All your `*.fr` files in `mainSourceDir` get compiled to `outputDir`.
- **runFrege**: Runs the Frege module specified by `mainModule`. Alternatively you can also pass the main module by command line, e.g: `gradle runFrege --mainModule=my.mod.Name`.
- **replFrege**: Takes care of all project dependencies of the specified filename by `replSource` and prints the command to start the Frege REPL, e.g: `java -cp <your-correct-classpath-with-all-dependencies> frege.repl.FregeRepl`. Afterwards you can load your file into the repl with `:l <absolute path to replSource>`.
### Dependencies
Dependencies can be configured as expected in your `build.gradle` file, using the `implementation` scope, e.g.:
```groovy
repositories {
# Add your Frege repo here
}
dependencies {
implementation 'org.frege-lang:fregefx:0.8.2-SNAPSHOT'
}
```
### Build Cache
The `compileFrege` task supports incremental builds from build cache. Enable the build cache by setting `org.gradle.caching=true` in your `gradle.properites`.
## How to Contribute
Try to add another task, e.g. `fregeDoc` to the [FregePluginFunctionalTest.java](src/functionalTest/java/ch/fhnw/thga/gradleplugins/FregePluginFunctionalTest.java) file and try to make the test pass.
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