xfy
3b2360162c
Extract duplicate generateETag function from handler/static.go and cache/file_cache.go into internal/utils/etag.go. Both functions were identical, using strconv.AppendInt for zero-allocation ETag generation. - Create utils.GenerateETag(modTime, size) as the unified implementation - Update handler/static.go to call utils.GenerateETag - Update cache/file_cache.go to call utils.GenerateETag - Remove unused strconv import from static.go Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
21 lines
453 B
Go
21 lines
453 B
Go
package utils
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import (
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"strconv"
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"time"
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)
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// GenerateETag 基于 ModTime 和 Size 生成 ETag。
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// 使用 strconv.AppendInt 避免 fmt.Sprintf 分配。
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// 格式: "<modtime-unix-hex>-<size-hex>"
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func GenerateETag(modTime time.Time, size int64) string {
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var buf [32]byte
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b := buf[:0]
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b = append(b, '"')
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b = strconv.AppendInt(b, modTime.Unix(), 16)
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b = append(b, '-')
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b = strconv.AppendInt(b, size, 16)
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b = append(b, '"')
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return string(b)
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}
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