context servers: Show configuration modal when extension is installed (#29309)

WIP

Release Notes:

- N/A

---------

Co-authored-by: Danilo Leal <67129314+danilo-leal@users.noreply.github.com>
Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: Marshall Bowers <git@maxdeviant.com>
Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Oleksiy Syvokon <oleksiy.syvokon@gmail.com>

crates/extension_api/src/extension_api.rs

@@ -18,6 +18,7 @@ pub use wit::{
     CodeLabel, CodeLabelSpan, CodeLabelSpanLiteral, Command, DownloadedFileType, EnvVars,
     KeyValueStore, LanguageServerInstallationStatus, Project, Range, Worktree, download_file,
     make_file_executable,
+    zed::extension::context_server::ContextServerConfiguration,
     zed::extension::github::{
         GithubRelease, GithubReleaseAsset, GithubReleaseOptions, github_release_by_tag_name,
         latest_github_release,
@@ -159,6 +160,15 @@ pub trait Extension: Send + Sync {
         Err("`context_server_command` not implemented".to_string())
     }
 
+    /// Returns the configuration options for the specified context server.
+    fn context_server_configuration(
+        &mut self,
+        _context_server_id: &ContextServerId,
+        _project: &Project,
+    ) -> Result<Option<ContextServerConfiguration>> {
+        Ok(None)
+    }
+
     /// Returns a list of package names as suggestions to be included in the
     /// search results of the `/docs` slash command.
     ///
@@ -342,6 +352,14 @@ impl wit::Guest for Component {
         extension().context_server_command(&context_server_id, project)
     }
 
+    fn context_server_configuration(
+        context_server_id: String,
+        project: &Project,
+    ) -> Result<Option<ContextServerConfiguration>, String> {
+        let context_server_id = ContextServerId(context_server_id);
+        extension().context_server_configuration(&context_server_id, project)
+    }
+
     fn suggest_docs_packages(provider: String) -> Result<Vec<String>, String> {
         extension().suggest_docs_packages(provider)
     }

crates/extension_api/wit/since_v0.5.0/context-server.wit

@@ -0,0 +1,11 @@
+interface context-server {
+    ///
+    record context-server-configuration {
+        ///
+        installation-instructions: string,
+        ///
+        settings-schema: string,
+        ///
+        default-settings: string,
+    }
+}

crates/extension_api/wit/since_v0.5.0/extension.wit

@@ -1,6 +1,7 @@
 package zed:extension;
 
 world extension {
+    import context-server;
     import github;
     import http-client;
     import platform;
@@ -8,6 +9,7 @@ world extension {
     import nodejs;
 
     use common.{env-vars, range};
+    use context-server.{context-server-configuration};
     use lsp.{completion, symbol};
     use process.{command};
     use slash-command.{slash-command, slash-command-argument-completion, slash-command-output};
@@ -139,6 +141,9 @@ world extension {
     /// Returns the command used to start up a context server.
     export context-server-command: func(context-server-id: string, project: borrow<project>) -> result<command, string>;
 
+    /// Returns the configuration for a context server.
+    export context-server-configuration: func(context-server-id: string, project: borrow<project>) -> result<option<context-server-configuration>, string>;
+
     /// Returns a list of packages as suggestions to be included in the `/docs`
     /// search results.
     ///