entrypoint.sh

#!/bin/sh
set -e

# Extract arguments for the footprint binary
# We pass all arguments received by the script to the binary
/footprint "$@"

# If OUTPUT_BRANCH is set, we handle the git push
if [ -n "$OUTPUT_BRANCH" ]; then
    echo "🚀 Storing artifacts to branch: $OUTPUT_BRANCH"
    
    # Configure git
    git config --global user.name "github-actions[bot]"
    git config --global user.email "github-actions[bot]@users.noreply.github.com"
    git config --global --add safe.directory /github/workspace
    
    # Remote URL with token for authentication
    # GITHUB_REPOSITORY is automatically provided by the Actions runner (e.g. "user/repo")
    REMOTE_REPO="https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
    
    # Determine the directory where artifacts were generated
    # Defaults to 'dist' if not set in args (which action.yaml handles)
    TARGET_DIR="${OUTPUT_DIR:-dist}"
    
    # Capture the absolute path of the generated artifacts
    SOURCE_DIR="$(pwd)/$TARGET_DIR"
    
    if [ ! -d "$TARGET_DIR" ]; then
        echo "Error: Output directory '$TARGET_DIR' not found."
        exit 1
    fi

    # Create a temporary directory for the push
    PUSH_DIR=$(mktemp -d)
    
    cd "$PUSH_DIR"
    git init
    git remote add origin "$REMOTE_REPO"
    
    # Check if branch exists on remote
    if git ls-remote --exit-code origin "$OUTPUT_BRANCH" > /dev/null 2>&1; then
        echo "Updating existing branch: $OUTPUT_BRANCH"
        git fetch origin "$OUTPUT_BRANCH"
        git checkout "$OUTPUT_BRANCH"
        # Remove all files in the current branch except the .git directory
        find . -maxdepth 1 -not -name "." -not -name ".git" -exec rm -rf {} +
    else
        echo "Creating new branch: $OUTPUT_BRANCH"
        git checkout --orphan "$OUTPUT_BRANCH"
    fi
    
    # Copy new artifacts from the captured absolute path
    cp -r "$SOURCE_DIR/." .
    
    git add .
    
    # Only commit and push if there are changes
    if git commit -m "Auto-generated footprint data"; then
        git push origin "$OUTPUT_BRANCH"
        echo "✓ Footprint artifacts successfully pushed to $OUTPUT_BRANCH"
    else
        echo "No changes to commit."
    fi
fi