56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
package hubmodule
|
|
|
|
import "time"
|
|
|
|
// MigrationState 描述模块上线阶段，方便观测端区分 legacy/beta/ga。
|
|
type MigrationState string
|
|
|
|
const (
|
|
MigrationStateLegacy MigrationState = "legacy"
|
|
MigrationStateBeta MigrationState = "beta"
|
|
MigrationStateGA MigrationState = "ga"
|
|
)
|
|
|
|
// ValidationMode 描述缓存再验证的默认策略。
|
|
type ValidationMode string
|
|
|
|
const (
|
|
ValidationModeETag ValidationMode = "etag"
|
|
ValidationModeLastModified ValidationMode = "last-modified"
|
|
ValidationModeNever ValidationMode = "never"
|
|
)
|
|
|
|
// CacheStrategyProfile 描述模块的缓存读写策略及其默认值。
|
|
type CacheStrategyProfile struct {
|
|
TTLHint time.Duration
|
|
ValidationMode ValidationMode
|
|
DiskLayout string
|
|
RequiresMetadataFile bool
|
|
SupportsStreamingWrite bool
|
|
}
|
|
|
|
// ModuleMetadata 记录一个模块的静态信息，供配置校验和诊断端使用。
|
|
type ModuleMetadata struct {
|
|
Key string
|
|
Description string
|
|
MigrationState MigrationState
|
|
SupportedProtocols []string
|
|
CacheStrategy CacheStrategyProfile
|
|
LocatorRewrite LocatorRewrite
|
|
}
|
|
|
|
// DefaultModuleKey 返回内置 legacy 模块的键值。
|
|
func DefaultModuleKey() string {
|
|
return defaultModuleKey
|
|
}
|
|
|
|
// Locator 表示模块可用于重写缓存路径的轻量结构体，避免依赖 cache 包。
|
|
type Locator struct {
|
|
HubName string
|
|
Path string
|
|
HubType string
|
|
}
|
|
|
|
// LocatorRewrite 允许模块根据自身协议调整缓存路径，例如将 npm metadata 写入独立文件。
|
|
type LocatorRewrite func(Locator) Locator
|