Add language_models crate to house language model providers (#20945)
This PR adds a new `language_models` crate to house the various language model providers. By extracting the provider definitions out of `language_model`, we're able to remove `language_model`'s dependency on `editor`, which improves incremental compilation when changing `editor`. Release Notes: - N/A
This commit is contained in:
Marshall Bowers
GitHub
parent
335b112abd
commit
cbba44900d
27 changed files with 265 additions and 199 deletions
742
crates/language_models/src/provider/anthropic.rs
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742
crates/language_models/src/provider/anthropic.rs
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@ -0,0 +1,742 @@
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use crate::AllLanguageModelSettings;
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use anthropic::{AnthropicError, ContentDelta, Event, ResponseContent};
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use anyhow::{anyhow, Context as _, Result};
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use collections::{BTreeMap, HashMap};
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use editor::{Editor, EditorElement, EditorStyle};
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use futures::Stream;
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use futures::{future::BoxFuture, stream::BoxStream, FutureExt, StreamExt, TryStreamExt as _};
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use gpui::{
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AnyView, AppContext, AsyncAppContext, FontStyle, ModelContext, Subscription, Task, TextStyle,
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View, WhiteSpace,
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};
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use http_client::HttpClient;
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use language_model::{
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LanguageModel, LanguageModelCacheConfiguration, LanguageModelId, LanguageModelName,
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LanguageModelProvider, LanguageModelProviderId, LanguageModelProviderName,
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LanguageModelProviderState, LanguageModelRequest, RateLimiter, Role,
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};
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use language_model::{LanguageModelCompletionEvent, LanguageModelToolUse, StopReason};
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use schemars::JsonSchema;
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use serde::{Deserialize, Serialize};
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use settings::{Settings, SettingsStore};
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use std::pin::Pin;
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use std::str::FromStr;
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use std::sync::Arc;
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use strum::IntoEnumIterator;
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use theme::ThemeSettings;
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use ui::{prelude::*, Icon, IconName, Tooltip};
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use util::{maybe, ResultExt};
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pub const PROVIDER_ID: &str = "anthropic";
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const PROVIDER_NAME: &str = "Anthropic";
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#[derive(Default, Clone, Debug, PartialEq)]
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pub struct AnthropicSettings {
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pub api_url: String,
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/// Extend Zed's list of Anthropic models.
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pub available_models: Vec<AvailableModel>,
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pub needs_setting_migration: bool,
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}
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#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
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pub struct AvailableModel {
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/// The model's name in the Anthropic API. e.g. claude-3-5-sonnet-latest, claude-3-opus-20240229, etc
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pub name: String,
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/// The model's name in Zed's UI, such as in the model selector dropdown menu in the assistant panel.
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pub display_name: Option<String>,
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/// The model's context window size.
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pub max_tokens: usize,
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/// A model `name` to substitute when calling tools, in case the primary model doesn't support tool calling.
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pub tool_override: Option<String>,
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/// Configuration of Anthropic's caching API.
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pub cache_configuration: Option<LanguageModelCacheConfiguration>,
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pub max_output_tokens: Option<u32>,
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pub default_temperature: Option<f32>,
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}
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pub struct AnthropicLanguageModelProvider {
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http_client: Arc<dyn HttpClient>,
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state: gpui::Model<State>,
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}
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const ANTHROPIC_API_KEY_VAR: &str = "ANTHROPIC_API_KEY";
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pub struct State {
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api_key: Option<String>,
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api_key_from_env: bool,
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_subscription: Subscription,
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}
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impl State {
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fn reset_api_key(&self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
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let delete_credentials =
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cx.delete_credentials(&AllLanguageModelSettings::get_global(cx).anthropic.api_url);
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cx.spawn(|this, mut cx| async move {
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delete_credentials.await.ok();
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this.update(&mut cx, |this, cx| {
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this.api_key = None;
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this.api_key_from_env = false;
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cx.notify();
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})
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})
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}
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fn set_api_key(&mut self, api_key: String, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
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let write_credentials = cx.write_credentials(
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AllLanguageModelSettings::get_global(cx)
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.anthropic
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.api_url
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.as_str(),
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"Bearer",
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api_key.as_bytes(),
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);
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cx.spawn(|this, mut cx| async move {
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write_credentials.await?;
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this.update(&mut cx, |this, cx| {
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this.api_key = Some(api_key);
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cx.notify();
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})
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})
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}
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fn is_authenticated(&self) -> bool {
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self.api_key.is_some()
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}
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fn authenticate(&self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
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if self.is_authenticated() {
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Task::ready(Ok(()))
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} else {
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let api_url = AllLanguageModelSettings::get_global(cx)
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.anthropic
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.api_url
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.clone();
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cx.spawn(|this, mut cx| async move {
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let (api_key, from_env) = if let Ok(api_key) = std::env::var(ANTHROPIC_API_KEY_VAR)
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{
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(api_key, true)
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} else {
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let (_, api_key) = cx
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.update(|cx| cx.read_credentials(&api_url))?
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.await?
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.ok_or_else(|| anyhow!("credentials not found"))?;
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(String::from_utf8(api_key)?, false)
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};
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this.update(&mut cx, |this, cx| {
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this.api_key = Some(api_key);
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this.api_key_from_env = from_env;
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cx.notify();
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})
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})
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}
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}
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}
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impl AnthropicLanguageModelProvider {
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pub fn new(http_client: Arc<dyn HttpClient>, cx: &mut AppContext) -> Self {
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let state = cx.new_model(|cx| State {
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api_key: None,
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api_key_from_env: false,
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_subscription: cx.observe_global::<SettingsStore>(|_, cx| {
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cx.notify();
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}),
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});
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Self { http_client, state }
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}
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}
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impl LanguageModelProviderState for AnthropicLanguageModelProvider {
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type ObservableEntity = State;
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fn observable_entity(&self) -> Option<gpui::Model<Self::ObservableEntity>> {
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Some(self.state.clone())
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}
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}
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impl LanguageModelProvider for AnthropicLanguageModelProvider {
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fn id(&self) -> LanguageModelProviderId {
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LanguageModelProviderId(PROVIDER_ID.into())
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}
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fn name(&self) -> LanguageModelProviderName {
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LanguageModelProviderName(PROVIDER_NAME.into())
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}
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fn icon(&self) -> IconName {
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IconName::AiAnthropic
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}
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fn provided_models(&self, cx: &AppContext) -> Vec<Arc<dyn LanguageModel>> {
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let mut models = BTreeMap::default();
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// Add base models from anthropic::Model::iter()
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for model in anthropic::Model::iter() {
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if !matches!(model, anthropic::Model::Custom { .. }) {
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models.insert(model.id().to_string(), model);
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}
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}
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// Override with available models from settings
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for model in AllLanguageModelSettings::get_global(cx)
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.anthropic
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.available_models
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.iter()
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{
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models.insert(
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model.name.clone(),
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anthropic::Model::Custom {
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name: model.name.clone(),
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display_name: model.display_name.clone(),
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max_tokens: model.max_tokens,
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tool_override: model.tool_override.clone(),
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cache_configuration: model.cache_configuration.as_ref().map(|config| {
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anthropic::AnthropicModelCacheConfiguration {
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max_cache_anchors: config.max_cache_anchors,
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should_speculate: config.should_speculate,
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min_total_token: config.min_total_token,
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}
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}),
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max_output_tokens: model.max_output_tokens,
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default_temperature: model.default_temperature,
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},
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);
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}
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models
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.into_values()
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.map(|model| {
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Arc::new(AnthropicModel {
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id: LanguageModelId::from(model.id().to_string()),
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model,
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state: self.state.clone(),
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http_client: self.http_client.clone(),
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request_limiter: RateLimiter::new(4),
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}) as Arc<dyn LanguageModel>
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})
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.collect()
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}
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fn is_authenticated(&self, cx: &AppContext) -> bool {
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self.state.read(cx).is_authenticated()
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}
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fn authenticate(&self, cx: &mut AppContext) -> Task<Result<()>> {
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self.state.update(cx, |state, cx| state.authenticate(cx))
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}
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fn configuration_view(&self, cx: &mut WindowContext) -> AnyView {
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cx.new_view(|cx| ConfigurationView::new(self.state.clone(), cx))
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.into()
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}
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fn reset_credentials(&self, cx: &mut AppContext) -> Task<Result<()>> {
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self.state.update(cx, |state, cx| state.reset_api_key(cx))
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}
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}
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pub struct AnthropicModel {
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id: LanguageModelId,
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model: anthropic::Model,
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state: gpui::Model<State>,
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http_client: Arc<dyn HttpClient>,
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request_limiter: RateLimiter,
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}
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pub fn count_anthropic_tokens(
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request: LanguageModelRequest,
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cx: &AppContext,
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) -> BoxFuture<'static, Result<usize>> {
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cx.background_executor()
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.spawn(async move {
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let messages = request.messages;
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let mut tokens_from_images = 0;
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let mut string_messages = Vec::with_capacity(messages.len());
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for message in messages {
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use language_model::MessageContent;
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let mut string_contents = String::new();
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for content in message.content {
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match content {
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MessageContent::Text(text) => {
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string_contents.push_str(&text);
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}
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MessageContent::Image(image) => {
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tokens_from_images += image.estimate_tokens();
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}
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MessageContent::ToolUse(_tool_use) => {
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// TODO: Estimate token usage from tool uses.
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}
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MessageContent::ToolResult(tool_result) => {
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string_contents.push_str(&tool_result.content);
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}
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}
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}
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if !string_contents.is_empty() {
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string_messages.push(tiktoken_rs::ChatCompletionRequestMessage {
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role: match message.role {
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Role::User => "user".into(),
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Role::Assistant => "assistant".into(),
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Role::System => "system".into(),
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},
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content: Some(string_contents),
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name: None,
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function_call: None,
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});
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}
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}
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// Tiktoken doesn't yet support these models, so we manually use the
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// same tokenizer as GPT-4.
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tiktoken_rs::num_tokens_from_messages("gpt-4", &string_messages)
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.map(|tokens| tokens + tokens_from_images)
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})
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.boxed()
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}
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impl AnthropicModel {
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fn stream_completion(
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&self,
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request: anthropic::Request,
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cx: &AsyncAppContext,
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) -> BoxFuture<'static, Result<BoxStream<'static, Result<anthropic::Event, AnthropicError>>>>
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{
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let http_client = self.http_client.clone();
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let Ok((api_key, api_url)) = cx.read_model(&self.state, |state, cx| {
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let settings = &AllLanguageModelSettings::get_global(cx).anthropic;
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(state.api_key.clone(), settings.api_url.clone())
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}) else {
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return futures::future::ready(Err(anyhow!("App state dropped"))).boxed();
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};
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async move {
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let api_key = api_key.ok_or_else(|| anyhow!("Missing Anthropic API Key"))?;
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let request =
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anthropic::stream_completion(http_client.as_ref(), &api_url, &api_key, request);
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request.await.context("failed to stream completion")
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}
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.boxed()
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}
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}
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impl LanguageModel for AnthropicModel {
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fn id(&self) -> LanguageModelId {
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self.id.clone()
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}
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fn name(&self) -> LanguageModelName {
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LanguageModelName::from(self.model.display_name().to_string())
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}
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fn provider_id(&self) -> LanguageModelProviderId {
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LanguageModelProviderId(PROVIDER_ID.into())
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}
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fn provider_name(&self) -> LanguageModelProviderName {
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LanguageModelProviderName(PROVIDER_NAME.into())
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}
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fn telemetry_id(&self) -> String {
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format!("anthropic/{}", self.model.id())
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}
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fn api_key(&self, cx: &AppContext) -> Option<String> {
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self.state.read(cx).api_key.clone()
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}
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fn max_token_count(&self) -> usize {
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self.model.max_token_count()
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}
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fn max_output_tokens(&self) -> Option<u32> {
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Some(self.model.max_output_tokens())
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}
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fn count_tokens(
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&self,
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request: LanguageModelRequest,
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cx: &AppContext,
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) -> BoxFuture<'static, Result<usize>> {
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count_anthropic_tokens(request, cx)
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}
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fn stream_completion(
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&self,
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request: LanguageModelRequest,
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cx: &AsyncAppContext,
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) -> BoxFuture<'static, Result<BoxStream<'static, Result<LanguageModelCompletionEvent>>>> {
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let request = request.into_anthropic(
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self.model.id().into(),
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self.model.default_temperature(),
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self.model.max_output_tokens(),
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);
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let request = self.stream_completion(request, cx);
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let future = self.request_limiter.stream(async move {
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let response = request.await.map_err(|err| anyhow!(err))?;
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Ok(map_to_language_model_completion_events(response))
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});
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async move { Ok(future.await?.boxed()) }.boxed()
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}
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fn cache_configuration(&self) -> Option<LanguageModelCacheConfiguration> {
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self.model
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.cache_configuration()
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.map(|config| LanguageModelCacheConfiguration {
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max_cache_anchors: config.max_cache_anchors,
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should_speculate: config.should_speculate,
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min_total_token: config.min_total_token,
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})
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}
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fn use_any_tool(
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&self,
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request: LanguageModelRequest,
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tool_name: String,
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tool_description: String,
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input_schema: serde_json::Value,
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cx: &AsyncAppContext,
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) -> BoxFuture<'static, Result<BoxStream<'static, Result<String>>>> {
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let mut request = request.into_anthropic(
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self.model.tool_model_id().into(),
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self.model.default_temperature(),
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self.model.max_output_tokens(),
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);
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request.tool_choice = Some(anthropic::ToolChoice::Tool {
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name: tool_name.clone(),
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});
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request.tools = vec![anthropic::Tool {
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name: tool_name.clone(),
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description: tool_description,
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input_schema,
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}];
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let response = self.stream_completion(request, cx);
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self.request_limiter
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.run(async move {
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let response = response.await?;
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Ok(anthropic::extract_tool_args_from_events(
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tool_name,
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Box::pin(response.map_err(|e| anyhow!(e))),
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)
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.await?
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.boxed())
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})
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.boxed()
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}
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}
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pub fn map_to_language_model_completion_events(
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events: Pin<Box<dyn Send + Stream<Item = Result<Event, AnthropicError>>>>,
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) -> impl Stream<Item = Result<LanguageModelCompletionEvent>> {
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struct RawToolUse {
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id: String,
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name: String,
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input_json: String,
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}
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struct State {
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events: Pin<Box<dyn Send + Stream<Item = Result<Event, AnthropicError>>>>,
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tool_uses_by_index: HashMap<usize, RawToolUse>,
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}
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futures::stream::unfold(
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State {
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events,
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tool_uses_by_index: HashMap::default(),
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},
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|mut state| async move {
|
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while let Some(event) = state.events.next().await {
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match event {
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Ok(event) => match event {
|
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Event::ContentBlockStart {
|
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index,
|
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content_block,
|
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} => match content_block {
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ResponseContent::Text { text } => {
|
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return Some((
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Some(Ok(LanguageModelCompletionEvent::Text(text))),
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state,
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));
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}
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ResponseContent::ToolUse { id, name, .. } => {
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state.tool_uses_by_index.insert(
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index,
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RawToolUse {
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id,
|
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name,
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input_json: String::new(),
|
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},
|
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);
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return Some((None, state));
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}
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},
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Event::ContentBlockDelta { index, delta } => match delta {
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ContentDelta::TextDelta { text } => {
|
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return Some((
|
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Some(Ok(LanguageModelCompletionEvent::Text(text))),
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state,
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));
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}
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ContentDelta::InputJsonDelta { partial_json } => {
|
||||
if let Some(tool_use) = state.tool_uses_by_index.get_mut(&index) {
|
||||
tool_use.input_json.push_str(&partial_json);
|
||||
return Some((None, state));
|
||||
}
|
||||
}
|
||||
},
|
||||
Event::ContentBlockStop { index } => {
|
||||
if let Some(tool_use) = state.tool_uses_by_index.remove(&index) {
|
||||
return Some((
|
||||
Some(maybe!({
|
||||
Ok(LanguageModelCompletionEvent::ToolUse(
|
||||
LanguageModelToolUse {
|
||||
id: tool_use.id,
|
||||
name: tool_use.name,
|
||||
input: if tool_use.input_json.is_empty() {
|
||||
serde_json::Value::Null
|
||||
} else {
|
||||
serde_json::Value::from_str(
|
||||
&tool_use.input_json,
|
||||
)
|
||||
.map_err(|err| anyhow!(err))?
|
||||
},
|
||||
},
|
||||
))
|
||||
})),
|
||||
state,
|
||||
));
|
||||
}
|
||||
}
|
||||
Event::MessageStart { message } => {
|
||||
return Some((
|
||||
Some(Ok(LanguageModelCompletionEvent::StartMessage {
|
||||
message_id: message.id,
|
||||
})),
|
||||
state,
|
||||
))
|
||||
}
|
||||
Event::MessageDelta { delta, .. } => {
|
||||
if let Some(stop_reason) = delta.stop_reason.as_deref() {
|
||||
let stop_reason = match stop_reason {
|
||||
"end_turn" => StopReason::EndTurn,
|
||||
"max_tokens" => StopReason::MaxTokens,
|
||||
"tool_use" => StopReason::ToolUse,
|
||||
_ => StopReason::EndTurn,
|
||||
};
|
||||
|
||||
return Some((
|
||||
Some(Ok(LanguageModelCompletionEvent::Stop(stop_reason))),
|
||||
state,
|
||||
));
|
||||
}
|
||||
}
|
||||
Event::Error { error } => {
|
||||
return Some((
|
||||
Some(Err(anyhow!(AnthropicError::ApiError(error)))),
|
||||
state,
|
||||
));
|
||||
}
|
||||
_ => {}
|
||||
},
|
||||
Err(err) => {
|
||||
return Some((Some(Err(anyhow!(err))), state));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
None
|
||||
},
|
||||
)
|
||||
.filter_map(|event| async move { event })
|
||||
}
|
||||
|
||||
struct ConfigurationView {
|
||||
api_key_editor: View<Editor>,
|
||||
state: gpui::Model<State>,
|
||||
load_credentials_task: Option<Task<()>>,
|
||||
}
|
||||
|
||||
impl ConfigurationView {
|
||||
const PLACEHOLDER_TEXT: &'static str = "sk-ant-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
|
||||
|
||||
fn new(state: gpui::Model<State>, cx: &mut ViewContext<Self>) -> Self {
|
||||
cx.observe(&state, |_, _, cx| {
|
||||
cx.notify();
|
||||
})
|
||||
.detach();
|
||||
|
||||
let load_credentials_task = Some(cx.spawn({
|
||||
let state = state.clone();
|
||||
|this, mut cx| async move {
|
||||
if let Some(task) = state
|
||||
.update(&mut cx, |state, cx| state.authenticate(cx))
|
||||
.log_err()
|
||||
{
|
||||
// We don't log an error, because "not signed in" is also an error.
|
||||
let _ = task.await;
|
||||
}
|
||||
this.update(&mut cx, |this, cx| {
|
||||
this.load_credentials_task = None;
|
||||
cx.notify();
|
||||
})
|
||||
.log_err();
|
||||
}
|
||||
}));
|
||||
|
||||
Self {
|
||||
api_key_editor: cx.new_view(|cx| {
|
||||
let mut editor = Editor::single_line(cx);
|
||||
editor.set_placeholder_text(Self::PLACEHOLDER_TEXT, cx);
|
||||
editor
|
||||
}),
|
||||
state,
|
||||
load_credentials_task,
|
||||
}
|
||||
}
|
||||
|
||||
fn save_api_key(&mut self, _: &menu::Confirm, cx: &mut ViewContext<Self>) {
|
||||
let api_key = self.api_key_editor.read(cx).text(cx);
|
||||
if api_key.is_empty() {
|
||||
return;
|
||||
}
|
||||
|
||||
let state = self.state.clone();
|
||||
cx.spawn(|_, mut cx| async move {
|
||||
state
|
||||
.update(&mut cx, |state, cx| state.set_api_key(api_key, cx))?
|
||||
.await
|
||||
})
|
||||
.detach_and_log_err(cx);
|
||||
|
||||
cx.notify();
|
||||
}
|
||||
|
||||
fn reset_api_key(&mut self, cx: &mut ViewContext<Self>) {
|
||||
self.api_key_editor
|
||||
.update(cx, |editor, cx| editor.set_text("", cx));
|
||||
|
||||
let state = self.state.clone();
|
||||
cx.spawn(|_, mut cx| async move {
|
||||
state
|
||||
.update(&mut cx, |state, cx| state.reset_api_key(cx))?
|
||||
.await
|
||||
})
|
||||
.detach_and_log_err(cx);
|
||||
|
||||
cx.notify();
|
||||
}
|
||||
|
||||
fn render_api_key_editor(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
|
||||
let settings = ThemeSettings::get_global(cx);
|
||||
let text_style = TextStyle {
|
||||
color: cx.theme().colors().text,
|
||||
font_family: settings.ui_font.family.clone(),
|
||||
font_features: settings.ui_font.features.clone(),
|
||||
font_fallbacks: settings.ui_font.fallbacks.clone(),
|
||||
font_size: rems(0.875).into(),
|
||||
font_weight: settings.ui_font.weight,
|
||||
font_style: FontStyle::Normal,
|
||||
line_height: relative(1.3),
|
||||
background_color: None,
|
||||
underline: None,
|
||||
strikethrough: None,
|
||||
white_space: WhiteSpace::Normal,
|
||||
truncate: None,
|
||||
};
|
||||
EditorElement::new(
|
||||
&self.api_key_editor,
|
||||
EditorStyle {
|
||||
background: cx.theme().colors().editor_background,
|
||||
local_player: cx.theme().players().local(),
|
||||
text: text_style,
|
||||
..Default::default()
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
fn should_render_editor(&self, cx: &mut ViewContext<Self>) -> bool {
|
||||
!self.state.read(cx).is_authenticated()
|
||||
}
|
||||
}
|
||||
|
||||
impl Render for ConfigurationView {
|
||||
fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
|
||||
const ANTHROPIC_CONSOLE_URL: &str = "https://console.anthropic.com/settings/keys";
|
||||
const INSTRUCTIONS: [&str; 3] = [
|
||||
"To use Zed's assistant with Anthropic, you need to add an API key. Follow these steps:",
|
||||
"- Create one at:",
|
||||
"- Paste your API key below and hit enter to use the assistant:",
|
||||
];
|
||||
let env_var_set = self.state.read(cx).api_key_from_env;
|
||||
|
||||
if self.load_credentials_task.is_some() {
|
||||
div().child(Label::new("Loading credentials...")).into_any()
|
||||
} else if self.should_render_editor(cx) {
|
||||
v_flex()
|
||||
.size_full()
|
||||
.on_action(cx.listener(Self::save_api_key))
|
||||
.child(Label::new(INSTRUCTIONS[0]))
|
||||
.child(h_flex().child(Label::new(INSTRUCTIONS[1])).child(
|
||||
Button::new("anthropic_console", ANTHROPIC_CONSOLE_URL)
|
||||
.style(ButtonStyle::Subtle)
|
||||
.icon(IconName::ExternalLink)
|
||||
.icon_size(IconSize::XSmall)
|
||||
.icon_color(Color::Muted)
|
||||
.on_click(move |_, cx| cx.open_url(ANTHROPIC_CONSOLE_URL))
|
||||
)
|
||||
)
|
||||
.child(Label::new(INSTRUCTIONS[2]))
|
||||
.child(
|
||||
h_flex()
|
||||
.w_full()
|
||||
.my_2()
|
||||
.px_2()
|
||||
.py_1()
|
||||
.bg(cx.theme().colors().editor_background)
|
||||
.rounded_md()
|
||||
.child(self.render_api_key_editor(cx)),
|
||||
)
|
||||
.child(
|
||||
Label::new(
|
||||
format!("You can also assign the {ANTHROPIC_API_KEY_VAR} environment variable and restart Zed."),
|
||||
)
|
||||
.size(LabelSize::Small),
|
||||
)
|
||||
.into_any()
|
||||
} else {
|
||||
h_flex()
|
||||
.size_full()
|
||||
.justify_between()
|
||||
.child(
|
||||
h_flex()
|
||||
.gap_1()
|
||||
.child(Icon::new(IconName::Check).color(Color::Success))
|
||||
.child(Label::new(if env_var_set {
|
||||
format!("API key set in {ANTHROPIC_API_KEY_VAR} environment variable.")
|
||||
} else {
|
||||
"API key configured.".to_string()
|
||||
})),
|
||||
)
|
||||
.child(
|
||||
Button::new("reset-key", "Reset key")
|
||||
.icon(Some(IconName::Trash))
|
||||
.icon_size(IconSize::Small)
|
||||
.icon_position(IconPosition::Start)
|
||||
.disabled(env_var_set)
|
||||
.when(env_var_set, |this| {
|
||||
this.tooltip(|cx| Tooltip::text(format!("To reset your API key, unset the {ANTHROPIC_API_KEY_VAR} environment variable."), cx))
|
||||
})
|
||||
.on_click(cx.listener(|this, _, cx| this.reset_api_key(cx))),
|
||||
)
|
||||
.into_any()
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue