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|
package main
//go:generate go run gen.go
import (
"bytes"
"compress/gzip"
"encoding/base64"
"io"
"os"
"text/template"
)
func main() {
f, err := os.Open("sws.min.js")
if err != nil {
panic(err)
}
defer f.Close()
var buf bytes.Buffer
encoder := base64.NewEncoder(base64.StdEncoding, &buf)
compressor := gzip.NewWriter(encoder)
defer compressor.Close()
defer encoder.Close()
_, err = io.Copy(compressor, f)
tmpl, err := template.New("counter").Parse(tmplData)
if err != nil {
panic(err)
}
tmpl.Execute(os.Stdout, struct{ B64 string }{buf.String()})
}
var tmplData = `package main
// Automatically generated, don't bother editing.
import (
"bytes"
"strings"
"compress/gzip"
"encoding/base64"
"io"
)
const data = "{{ .B64 }}"
func GetCounter() []byte {
b := GetCounterGzipped()
decompressor, err := gzip.NewReader(bytes.NewReader(b))
if err != nil {
return panic(err)
}
var buf bytes.Buffer
_, err = io.Copy(&buf, decompressor)
if err != nil {
panic(err)
}
return buf.Bytes()
}
func GetCounterGzipped() []byte {
decoder := base64.NewDecoder(base64.StdEncoding, strings.NewReader(data))
out, err := base64.StdEncoding.DecodeString(data)
if err != nil {
panic(err)
}
return out
}
`
|
