List the `.` directory and read build scripts / configs. Then set up a linter for the project. Then tell me how to set this up as a pre-commit hook.

To set up a linter for the project and configure it as a pre-commit hook, follow these steps:

### Step 1: Set Up a Linter

1. **Choose a Linter**: For a Java/Kotlin project like this, a popular choice is Checkstyle for Java and Detekt for Kotlin. Since the project uses Kotlin, we'll set up Detekt.

2. **Add Detekt to the Build Script**:
   Add the following to your `build.gradle` file to include Detekt:

   ```groovy
   plugins {
       id "io.gitlab.arturbosch.detekt" version "1.22.0"
   }

   detekt {
       toolVersion = "1.22.0"
       config = files("detekt-config.yml") // Create this file for custom rules
       buildUponDefaultConfig = true // Use default config as a base
   }

   tasks.withType(io.gitlab.arturbosch.detekt.Detekt).configureEach {
       reports {
           html.required.set(true) // Enable HTML report
           xml.required.set(false) // Disable XML report
           txt.required.set(false) // Disable TXT report
       }
   }
   ```

3. **Create a Configuration File**:
   Create a `detekt-config.yml` file in the root directory for custom rules and configurations.

### Step 2: Set Up a Pre-commit Hook

1. **Create a Pre-commit Hook Script**:
   Create a file named `pre-commit` in the `.git/hooks` directory with the following content:

   ```bash
   #!/bin/sh
   ./gradlew detekt
   if [ $? -ne 0 ]; then
       echo "Detekt failed, please fix the issues before committing."
       exit 1
   fi
   ```

2. **Make the Script Executable**:
   Run the following command to make the script executable:

   ```bash
   chmod +x .git/hooks/pre-commit
   ```

### Summary

- **Linter**: Detekt is set up in the `build.gradle` file.
- **Pre-commit Hook**: A script is created in `.git/hooks` to run Detekt before each commit.

This setup ensures that code quality checks are enforced before any code is committed to the repository.