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//go:build ignore
// +build ignore
package main
import (
"bytes"
"fmt"
"os"
"strings"
"time"
yaml "gopkg.in/yaml.v2"
)
type HeaderYaml struct {
FileType string `yaml:"filetype"`
Detect struct {
FNameRgx string `yaml:"filename"`
HeaderRgx string `yaml:"header"`
SignatureRgx string `yaml:"signature"`
} `yaml:"detect"`
}
type Header struct {
FileType string
FNameRgx string
HeaderRgx string
SignatureRgx string
}
func main() {
if len(os.Args) > 1 {
os.Chdir(os.Args[1])
}
files, _ := os.ReadDir(".")
for _, f := range files {
fname := f.Name()
if strings.HasSuffix(fname, ".yaml") {
convert(fname[:len(fname)-5])
}
}
}
func convert(name string) {
filename := name + ".yaml"
var hdr HeaderYaml
source, err := os.ReadFile(filename)
if err != nil {
panic(err)
}
err = yaml.Unmarshal(source, &hdr)
if err != nil {
panic(err)
}
encode(name, hdr)
}
func encode(name string, c HeaderYaml) {
f, _ := os.Create(name + ".hdr")
f.WriteString(c.FileType + "\n")
f.WriteString(c.Detect.FNameRgx + "\n")
f.WriteString(c.Detect.HeaderRgx + "\n")
f.WriteString(c.Detect.SignatureRgx + "\n")
f.Close()
}
func decode(name string) Header {
start := time.Now()
data, _ := os.ReadFile(name + ".hdr")
strs := bytes.Split(data, []byte{'\n'})
var hdr Header
hdr.FileType = string(strs[0])
hdr.FNameRgx = string(strs[1])
hdr.HeaderRgx = string(strs[2])
hdr.SignatureRgx = string(strs[3])
fmt.Printf("took %v\n", time.Since(start))
return hdr
}
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