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91 lines
3.7 KiB
Go
91 lines
3.7 KiB
Go
package config
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import (
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"context"
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"strings"
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"cursor/internal/modelchannel"
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legacyruntime "cursor/internal/runtime"
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)
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const (
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defaultChannelTimeoutMS = int((2 * 60 * 60) * 1000)
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defaultChannelContextWindowTokens = 500_000
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// 两类渠道的最大输出默认值按协议分道：
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// openai 兼容网关对大 max_tokens 普遍宽容；anthropic 生态主流输出上限为 128K，
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// 默认值越过服务方上限会直接返回 400（exceeds the configured maximum output length）。
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defaultChannelMaxTokens = 278_000
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defaultChannelAnthropicMaxTokens = 131_072
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defaultChannelThinkingBudget = 4_096
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defaultChannelAnthropicEffort = "xhigh"
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)
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func (manager *Manager) SelectChannelForModel(_ context.Context, modelID string) (*legacyruntime.ResolvedChannel, error) {
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if manager == nil {
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return nil, legacyruntime.ErrChannelNotAvailable
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}
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adapters, err := NormalizeModelAdapterConfigs(manager.Current().ModelAdapters)
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if err != nil {
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return nil, err
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}
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return resolveModelAdapterChannel(adapters, modelID)
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}
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func resolveModelAdapterChannel(adapters []ModelAdapterConfig, requestedModel string) (*legacyruntime.ResolvedChannel, error) {
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matchIndex, ok := modelchannel.ResolveAdapterIndex(
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adapters,
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requestedModel,
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func(adapter ModelAdapterConfig) string { return adapter.ID },
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func(adapter ModelAdapterConfig) string { return adapter.ModelID },
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func(adapter ModelAdapterConfig) string {
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return modelchannel.BuildLegacyChannelID(adapter.BaseURL, adapter.ModelID, adapter.APIKey, adapter.DisplayName)
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},
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)
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if !ok {
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return nil, legacyruntime.ErrChannelNotAvailable
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}
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matched := adapters[matchIndex]
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resolved := &legacyruntime.ResolvedChannel{
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ID: strings.TrimSpace(matched.ID),
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Name: strings.TrimSpace(matched.DisplayName),
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GroupName: "local",
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Code: strings.TrimSpace(matched.ID),
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Provider: strings.TrimSpace(matched.Type),
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BaseURL: strings.TrimSpace(matched.BaseURL),
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APIKey: strings.TrimSpace(matched.APIKey),
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Model: strings.TrimSpace(matched.ModelID),
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OpenAIEndpoint: strings.TrimSpace(matched.OpenAIEndpoint),
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OpenAIExtraParamsEnabled: matched.OpenAIExtraParamsEnabled,
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OpenAIExtraParamsJSON: strings.TrimSpace(matched.OpenAIExtraParamsJSON),
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CustomHeadersEnabled: matched.CustomHeadersEnabled,
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CustomHeadersJSON: strings.TrimSpace(matched.CustomHeadersJSON),
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AnthropicExtraParamsEnabled: matched.AnthropicExtraParamsEnabled,
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AnthropicExtraParamsJSON: strings.TrimSpace(matched.AnthropicExtraParamsJSON),
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TimeoutMS: defaultChannelTimeoutMS,
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ContextWindowTokens: defaultChannelContextWindowTokens,
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MaxTokens: defaultChannelMaxTokens,
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ReasoningEffort: strings.TrimSpace(matched.ReasoningEffort),
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AnthropicMaxTokens: defaultChannelAnthropicMaxTokens,
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AnthropicThinkingEffort: defaultChannelAnthropicEffort,
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ThinkingEnabled: true,
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ThinkingBudgetTokens: defaultChannelThinkingBudget,
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}
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if matched.ContextWindowTokens > 0 {
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resolved.ContextWindowTokens = matched.ContextWindowTokens
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}
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if matched.MaxCompletionTokens > 0 {
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resolved.MaxTokens = matched.MaxCompletionTokens
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}
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if matched.AnthropicMaxTokens > 0 {
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resolved.AnthropicMaxTokens = matched.AnthropicMaxTokens
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}
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if matched.ThinkingBudgetTokens > 0 {
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resolved.ThinkingBudgetTokens = matched.ThinkingBudgetTokens
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}
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if strings.TrimSpace(matched.AnthropicThinkingEffort) != "" {
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resolved.AnthropicThinkingEffort = strings.TrimSpace(matched.AnthropicThinkingEffort)
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}
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return resolved, nil
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}
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