62 lines
999 B
Go
62 lines
999 B
Go
package glance
|
|
|
|
import (
|
|
"crypto/md5"
|
|
"embed"
|
|
"encoding/hex"
|
|
"io"
|
|
"io/fs"
|
|
"log"
|
|
"strconv"
|
|
"time"
|
|
)
|
|
|
|
//go:embed static
|
|
var _staticFS embed.FS
|
|
|
|
//go:embed templates
|
|
var _templateFS embed.FS
|
|
|
|
var staticFS, _ = fs.Sub(_staticFS, "static")
|
|
var templateFS, _ = fs.Sub(_templateFS, "templates")
|
|
|
|
var staticFSHash = func() string {
|
|
hash, err := computeFSHash(staticFS)
|
|
if err != nil {
|
|
log.Printf("Could not compute static assets cache key: %v", err)
|
|
return strconv.FormatInt(time.Now().Unix(), 10)
|
|
}
|
|
|
|
return hash
|
|
}()
|
|
|
|
func computeFSHash(files fs.FS) (string, error) {
|
|
hash := md5.New()
|
|
|
|
err := fs.WalkDir(files, ".", func(path string, d fs.DirEntry, err error) error {
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if d.IsDir() {
|
|
return nil
|
|
}
|
|
|
|
file, err := files.Open(path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if _, err := io.Copy(hash, file); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
})
|
|
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
return hex.EncodeToString(hash.Sum(nil))[:10], nil
|
|
}
|