dundee/gdu

package path

import "strings"

// ShortenPath removes the last but one path components to fit into maxLen
func ShortenPath(path string, maxLen int) string {
    if len(path) <= maxLen {
        return path
    }

    res := ""
    parts := strings.SplitAfter(path, "/")
    curLen := len(parts[len(parts)-1]) // count lenght of last part for start

    for _, part := range parts[:len(parts)-1] {
        curLen += len(part)
        if curLen > maxLen {
            res += ".../"
            break
        }
        res += part
    }

    res += parts[len(parts)-1]
    return res
}