in src/main/groovy/commandLineTools/SimpleWebServer.groovy [76:84]
def printDirectoryListing(f) {
printHeaders("text/html")
println "<html><head></head><body>"
for (i in f.list().toList().sort()) {
if ("/" == content) { content = "" } // special case for root document
println "<a href='${content}/${i}'>${i}</a><br>"
}
println "</body></html>"
}