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131 lines
2.9 KiB
131 lines
2.9 KiB
package main
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import (
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"flag"
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"fmt"
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"io/fs"
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"os"
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"strconv"
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"github.com/fatih/color"
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)
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func usage() {
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//TODO: Fill this out
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fmt.Fprintf(os.Stderr, "Usage:\n")
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os.Exit(1)
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}
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func FormatFileSize(fi fs.FileInfo) (size string) {
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fileSizeFloat := float64(fi.Size())
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switch {
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case fileSizeFloat > (1024 * 1024 * 1024): //GB
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fileSizeFloat /= (1024 * 1024 * 1024)
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size = strconv.FormatFloat(fileSizeFloat, 'f', 1, 64)
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return size + "G"
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case fileSizeFloat > (1024 * 1024): //MB
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fileSizeFloat /= (1024 * 1024)
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size = strconv.FormatFloat(fileSizeFloat, 'f', 1, 64)
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return size + "M"
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case fileSizeFloat > 1024: //KB
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fileSizeFloat /= 1024
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size = strconv.FormatFloat(fileSizeFloat, 'f', 1, 64)
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return size + "K"
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case fileSizeFloat > 0: //B
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size = strconv.FormatFloat(fileSizeFloat, 'f', 0, 64)
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return size
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default:
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return "0"
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}
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}
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func GetFileMod(fi fs.FileInfo) (mod string) {
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//day month short time HH:MM
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day := strconv.Itoa(fi.ModTime().Day())
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month := fi.ModTime().Month().String()
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timeH := strconv.Itoa(fi.ModTime().Hour())
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timeM := strconv.Itoa(fi.ModTime().Minute())
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if len(timeH) <= 1 {
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timeH = "0" + timeH
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}
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if len(timeM) <= 1 {
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timeM = "0" + timeM
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}
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mod = day + " " + month[0:3] + " " + timeH + ":" + timeM
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return mod
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}
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func PrintHeaders() {
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headersOutput := color.New(color.FgHiBlack).Add(color.Underline)
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//headersOutput.Printf("%-10s %7s %5s %11s\n", "Type", "Size", "Time", "Name") //leave this
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headersOutput.Printf("%-10s ", "Type")
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headersOutput.Printf("%7s ", "Size")
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headersOutput.Printf("%5s ", "Time")
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headersOutput.Printf("%11s\n", "Name")
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}
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func GetDir() {
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}
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func main() {
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var flagNoColor = flag.Bool("no-colour", false, "Disable color output")
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var flagEnableL = flag.Bool("l", false, "Enable ls -l output")
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var flagEnableA = flag.Bool("a", true, "Enable ls -a output")
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flag.Parse()
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if *flagNoColor {
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color.NoColor = true
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}
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if *flagEnableL {
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PrintHeaders()
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}
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dirOutput := color.New(color.FgCyan, color.Bold)
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fileOutput := color.New(color.FgWhite, color.Bold)
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files, err := os.ReadDir(".")
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if err != nil {
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fmt.Fprintf(os.Stderr, "%s\n", err)
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}
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for _, file := range files {
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fileName := file.Name()
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dirDash := "-"
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fileSize := ""
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fileModTime := ""
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fi, err := os.Stat(fileName)
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if err != nil {
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fmt.Fprintf(os.Stderr, "%s\n", err)
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}
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fileSize = FormatFileSize(fi)
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fileModTime = GetFileMod(fi)
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fileType := fi.Mode()
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if *flagEnableL { //PRINT JUST FILE FORMAT
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if file.IsDir() && (*flagEnableA && file.Name()[:1] == ".") {
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dirOutput.Printf("%s ", fileName)
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} else {
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fileOutput.Printf("%s ", fileName)
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}
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} else { //PRINT LIST FORMAT
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if file.IsDir() && (*flagEnableA && file.Name()[:1] == ".") { //print -l
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dirOutput.Printf("%s %7s %7s\t%s\n", fileType, dirDash, fileModTime, fileName)
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} else {
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fmt.Printf("%7s %7s %4s", fileType, fileSize, fileModTime)
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fileOutput.Printf("\t%s\n", fileName)
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}
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}
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}
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fmt.Println()
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}
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