snippets: Read user settings for workspace configuration (#13356)

Fixes #13334

Use `settings` field in `lsp` subsettings to fix up the settings as
wish:
```
  "lsp": {
    "snippet-completion-server": {
      "settings": {
        "max_completion_items": 20, 
        "snippets_first": false,
        "feature_words": true,
        "feature_snippets": true,
        "feature_paths": true,
        "feature_unicode_input": false
      }
    }
  }
```


Release Notes:

- N/A

Cargo.lock

@@ -13587,7 +13587,7 @@ dependencies = [
 
 [[package]]
 name = "zed_snippets"
-version = "0.0.3"
+version = "0.0.4"
 dependencies = [
  "serde_json",
  "zed_extension_api 0.0.6",

extensions/snippets/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zed_snippets"
-version = "0.0.3"
+version = "0.0.4"
 edition = "2021"
 publish = false
 license = "Apache-2.0"

extensions/snippets/extension.toml

@@ -1,15 +1,15 @@
 id = "snippets"
 name = "Snippets"
 description = "Support for language-agnostic snippets, provided by simple-completion-language-server"
-version = "0.0.3"
+version = "0.0.4"
 schema_version = 1
 authors = []
 repository = "https://github.com/zed-industries/zed"
 
 [language_servers.snippet-completion-server]
 name = "Snippet Completion Server"
-languages = ["Astro", "Clojure", "C", "C++", "C#", "Dart", "Elixir", "Elm", "ERB", "Erlang",
-    "Gleam","GLSL", "Go",  "Haskell", "HCL", "HEEX", "HTML", "JavaScript","JSDoc","Lua",
+languages = ["Astro", "Clojure", "C", "C++", "C#", "Dart", "Dockerfile", "Elixir", "Elm", "ERB", "Erlang",
+    "Gleam","GLSL", "Go",  "Haskell", "HCL", "HEEX", "HTML", "JavaScript","JSDoc", "JSON", "Lua",
     "Markdown","OCaml", "PHP", "Python", "Prisma", "PureScript", "Racket", "Ruby", "Rust", "Scheme",
     "Shell Script", "Svelte", "Terraform", "TOML", "TypeScript", "TSX", "Uiua", "Vue.js", "Zig"]
 language_ids = { TypeScript = "typescript", TSX = "typescriptreact", JavaScript = "javascript", "Vue.js" = "vue", Terraform = "terraform", "Terraform Vars" = "terraform-vars", PHP = "php", HTML = "html", CSS = "css" }

extensions/snippets/src/snippets.rs

@@ -1,7 +1,7 @@
 use serde_json::json;
 use std::fs;
 use zed::LanguageServerId;
-use zed_extension_api::{self as zed, Result};
+use zed_extension_api::{self as zed, settings::LspSettings, Result};
 
 struct SnippetExtension {
     cached_binary_path: Option<String>,
@@ -106,32 +106,24 @@ impl zed::Extension for SnippetExtension {
         })
     }
 
-    fn language_server_initialization_options(
-        &mut self,
-        _language_server_id: &LanguageServerId,
-        _worktree: &zed_extension_api::Worktree,
-    ) -> Result<Option<zed_extension_api::serde_json::Value>> {
-        Ok(Some(json!({
-            "max_completion_items": 20,
-            "snippets_first": true,
-            "feature_words": false,
-            "feature_snippets": true,
-            "feature_paths": true
-        })))
-    }
-
     fn language_server_workspace_configuration(
         &mut self,
-        _language_server_id: &LanguageServerId,
-        _worktree: &zed_extension_api::Worktree,
+        server_id: &LanguageServerId,
+        worktree: &zed_extension_api::Worktree,
     ) -> Result<Option<zed_extension_api::serde_json::Value>> {
-        Ok(Some(json!({
+        let settings = LspSettings::for_worktree(server_id.as_ref(), worktree)
+            .ok()
+            .and_then(|lsp_settings| lsp_settings.settings.clone())
+            .unwrap_or_else(|| {
+                json!({
                     "max_completion_items": 20,
                     "snippets_first": true,
                     "feature_words": false,
                     "feature_snippets": true,
                     "feature_paths": true
-        })))
+                })
+            });
+        Ok(Some(settings))
     }
 }