74 lines
1.1 KiB
Go
74 lines
1.1 KiB
Go
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"strings"
|
|
|
|
"git.wntrmute.dev/kyle/goutils/die"
|
|
)
|
|
|
|
func usage(w io.Writer, exc int) {
|
|
fmt.Fprintln(w, `usage: dumpbytes -n tabs <file>`)
|
|
os.Exit(exc)
|
|
}
|
|
|
|
func printBytes(buf []byte) {
|
|
fmt.Printf("\t")
|
|
for i := range buf {
|
|
fmt.Printf("0x%02x, ", buf[i])
|
|
}
|
|
fmt.Println()
|
|
}
|
|
|
|
func dumpFile(path string, indentLevel int) error {
|
|
var indent strings.Builder
|
|
for range indentLevel {
|
|
indent.WriteByte('\t')
|
|
}
|
|
|
|
file, err := os.Open(path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer file.Close()
|
|
|
|
fmt.Printf("%svar buffer = []byte{\n", indent.String())
|
|
for {
|
|
buf := make([]byte, 8)
|
|
n, err := file.Read(buf)
|
|
if err == io.EOF {
|
|
if n > 0 {
|
|
fmt.Printf("%s", indent.String())
|
|
printBytes(buf[:n])
|
|
}
|
|
break
|
|
}
|
|
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fmt.Printf("%s", indent.String())
|
|
printBytes(buf[:n])
|
|
}
|
|
|
|
fmt.Printf("%s}\n", indent.String())
|
|
return nil
|
|
}
|
|
|
|
func main() {
|
|
indent := 0
|
|
flag.Usage = func() { usage(os.Stderr, 0) }
|
|
flag.IntVar(&indent, "n", 0, "indent level")
|
|
flag.Parse()
|
|
|
|
for _, file := range flag.Args() {
|
|
err := dumpFile(file, indent)
|
|
die.If(err)
|
|
}
|
|
}
|