package main

import (
	"fmt"
	"os"
	"path/filepath"
	"strings"

	"github.com/logrusorgru/aurora"
)

const (
	largeFileLimit = 1 << 20 // 1MiB
)

func checkLargeFiles() error {
	return filepath.Walk(".", checkLargeFilesW)
}

func checkLargeFilesW(path string, info os.FileInfo, err error) error {
	switch {
	case err != nil:
		return err
	case info.Size() > largeFileLimit:
		return fmt.Errorf("committing large file: %s (%d bytes)",
			aurora.Red(path), info.Size())
	case info.IsDir() && strings.HasPrefix(info.Name(), "."):
		return filepath.SkipDir
	default:
		return nil
	}
}