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refactor: 静态资源哈希算法从 SHA-1 改为 CRC32

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- CRC32 更快且语义更匹配缓存破坏场景
- 输出自然为 8 位 hex，无需截取
This commit is contained in:
Victor Jay
2026-05-31 02:06:41 +08:00
parent d3e5cbe18b
commit eabceecaae
1 changed files with 9 additions and 9 deletions
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18
internal/common/helper.go
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@ -1,9 +1,8 @@
package common package common
import ( import (
"crypto/sha1"
"encoding/hex"
"fmt" "fmt"
"hash/crc32"
"io/fs" "io/fs"
"log" "log"
"net/http" "net/http"
@ -11,6 +10,7 @@ import (
"os" "os"
"path/filepath" "path/filepath"
"regexp" "regexp"
"strconv"
"sync" "sync"
"metazone.cc/metalab/internal/model" "metazone.cc/metalab/internal/model"
@ -24,7 +24,7 @@ var (
assetOnce sync.Once assetOnce sync.Once
) )
// ComputeAssetHashes 遍历 static 目录，计算每个文件的 SHA-1 前 8 位作为版本号 // ComputeAssetHashes 遍历 static 目录，计算每个文件的 CRC32作为版本号
func ComputeAssetHashes(templateDir string) { func ComputeAssetHashes(templateDir string) {
assetHashes = make(map[string]string) assetHashes = make(map[string]string)
staticDir := filepath.Join(templateDir, "static") staticDir := filepath.Join(templateDir, "static")
@ -41,8 +41,8 @@ func ComputeAssetHashes(templateDir string) {
if err != nil { if err != nil {
return nil return nil
} }
h := sha1.Sum(data) h := crc32.ChecksumIEEE(data)
shortHash := hex.EncodeToString(h[:])[:8] shortHash := strconv.FormatUint(uint64(h), 16)
// 生成 URL 路径：/static/... // 生成 URL 路径：/static/...
rel, _ := filepath.Rel(filepath.Dir(templateDir), path) rel, _ := filepath.Rel(filepath.Dir(templateDir), path)
urlPath := "/" + filepath.ToSlash(rel) urlPath := "/" + filepath.ToSlash(rel)
@ -63,8 +63,8 @@ func ComputeAssetHashes(templateDir string) {
if err != nil { if err != nil {
return nil return nil
} }
h := sha1.Sum(data) h := crc32.ChecksumIEEE(data)
shortHash := hex.EncodeToString(h[:])[:8] shortHash := strconv.FormatUint(uint64(h), 16)
rel, _ := filepath.Rel(filepath.Dir(templateDir), path) rel, _ := filepath.Rel(filepath.Dir(templateDir), path)
urlPath := "/" + filepath.ToSlash(rel) urlPath := "/" + filepath.ToSlash(rel)
assetHashes[urlPath] = shortHash assetHashes[urlPath] = shortHash
@ -84,8 +84,8 @@ func ComputeAssetHashes(templateDir string) {
if err != nil { if err != nil {
return nil return nil
} }
h := sha1.Sum(data) h := crc32.ChecksumIEEE(data)
shortHash := hex.EncodeToString(h[:])[:8] shortHash := strconv.FormatUint(uint64(h), 16)
rel, _ := filepath.Rel(filepath.Dir(templateDir), path) rel, _ := filepath.Rel(filepath.Dir(templateDir), path)
urlPath := "/" + filepath.ToSlash(rel) urlPath := "/" + filepath.ToSlash(rel)
assetHashes[urlPath] = shortHash assetHashes[urlPath] = shortHash