pre-commit

#!/bin/bash

# Workaround for Git GUI users to have environment variables available
source ~/.zshrc

# Immediately exit if any command has a non-zero exit status
#set -e

echo "Running formatter..."

# Get the list of staged Java and Kotlin files
staged_files=$(git diff --cached --name-only --diff-filter=ACMR | grep -E '\.(java|kt)$')

# If no files to format, exit with status 0 to complete the commit
if [ -z "$staged_files" ]; then
  echo "No Java or Kotlin files to format."
  exit 0
fi

# Convert the list of staged files into a comma-separated string of absolute paths
formatted_files=$(echo "$staged_files" | while read -r file; do
  realpath "$file"
done | tr '\n' ',' | sed 's/,$//')

# Check if there are any files to format
if [ -z "$formatted_files" ]; then
  echo "No files to format."
  exit 0
fi

# Run Spotless with the paths of the staged files
# Check for formatting errors and exit with the appropriate code
if ! ./gradlew spotlessApply -PspotlessFiles="$formatted_files" -PapplyLicenseHeader=false --daemon; then
  echo "Spotless formatting failed."
  exit 1
fi

# Re-add any changes that Spotless created
# Re-add only the files that were staged before formatting
for file in $staged_files; do
  git add "$file"
done

# Return the exit code
exit 0