Add Qwen2-7B to the list of zed.dev models (#15649)

Release Notes:

- N/A

---------

Co-authored-by: Nathan <nathan@zed.dev>

crates/collab/src/lib.rs

@@ -151,6 +151,8 @@ pub struct Config {
     pub openai_api_key: Option<Arc<str>>,
     pub google_ai_api_key: Option<Arc<str>>,
     pub anthropic_api_key: Option<Arc<str>>,
+    pub qwen2_7b_api_key: Option<Arc<str>>,
+    pub qwen2_7b_api_url: Option<Arc<str>>,
     pub zed_client_checksum_seed: Option<String>,
     pub slack_panics_webhook: Option<String>,
     pub auto_join_channel_id: Option<ChannelId>,

crates/collab/src/rpc.rs

@@ -4706,6 +4706,30 @@ async fn stream_complete_with_language_model(
                 })?;
             }
         }
+        Some(proto::LanguageModelProvider::Zed) => {
+            let api_key = config
+                .qwen2_7b_api_key
+                .as_ref()
+                .context("no Qwen2-7B API key configured on the server")?;
+            let api_url = config
+                .qwen2_7b_api_url
+                .as_ref()
+                .context("no Qwen2-7B URL configured on the server")?;
+            let mut events = open_ai::stream_completion(
+                session.http_client.as_ref(),
+                &api_url,
+                api_key,
+                serde_json::from_str(&request.request)?,
+                None,
+            )
+            .await?;
+            while let Some(event) = events.next().await {
+                let event = event?;
+                response.send(proto::StreamCompleteWithLanguageModelResponse {
+                    event: serde_json::to_string(&event)?,
+                })?;
+            }
+        }
         None => return Err(anyhow!("unknown provider"))?,
     }
 

crates/collab/src/tests/test_server.rs

@@ -672,6 +672,8 @@ impl TestServer {
                 stripe_api_key: None,
                 stripe_price_id: None,
                 supermaven_admin_api_key: None,
+                qwen2_7b_api_key: None,
+                qwen2_7b_api_url: None,
             },
         })
     }