feat(plugin): distribution and loading

.changeset/package-grit-plugins.md

@@ -0,0 +1,62 @@
+---
+"@biomejs/biome": minor
+---
+
+Added support for distributing named Grit rules, rule presets, and configurations through `biome-manifest.json` or `biome-manifest.jsonc`.
+
+The field `plugins` is used to export named Grit plugins, and `configs` is used to export named configurations.
+Package entries must select a named export: `package/rule`, `package/presets/preset`, or `package/configs/config`. Bare package entries aren't supported.
+Rules consumed from another package are exposed under the consuming package's name, while package authors continue to reference them by their source package inside the manifest.
+Configurations consumed from another package are also exposed under the consuming package's name.
+
+```json5
+{
+  "$schema": "./node_modules/@biomejs/biome/manifest_schema.json",
+  "version": 1,
+  "plugins": {
+    "rules": [
+      "@org/shared-rules/noDeprecatedApi",
+      "@org/strict-rules/presets/recommended",
+      { "useCompanyLogger": "./rules/useCompanyLogger.grit" }
+    ],
+    "presets": {
+      "recommended": [
+        "useCompanyLogger",
+        "@org/shared-rules/noDeprecatedApi"
+      ]
+    }
+  },
+  "configs": [
+    "@org/shared-configs/configs/recommended",
+    { "base": "./configs/base.json" }
+  ]
+}
+```
+
+The package must publish the manifest and every referenced file, for example, through the `files` field in `package.json`.
+Plugin authors can expose their manifest through the `biome` condition with `./biome-manifest.json` as its value.
+
+```json5
+// package.json
+{
+  "name": "@org/biome-plugin",
+  "exports": {
+    "biome": "./biome-manifest.json",
+    "default": "./index.js"
+  },
+  "files": ["biome-manifest.json", "rules", "configs"]
+}
+```
+
+And then, you can load the rules in your `biome.json`:
+
+```json
+{
+  "plugins": [
+    "@org/biome-plugin/useCompanyLogger",
+    "@org/biome-plugin/presets/recommended"
+  ]
+}
+```
+
+For more information on how to create a plugin to distribute via npm, check the relative [guide](https://biomejs.dev/guides/publish-packages/).

Cargo.toml

@@ -78,6 +78,7 @@ biome_json_value             = { path = "./crates/biome_json_value", version = "
 biome_line_index             = { path = "./crates/biome_line_index", version = "0.1.0" }
 biome_lsp                    = { path = "./crates/biome_lsp" }
 biome_lsp_converters         = { path = "./crates/biome_lsp_converters", version = "0.1.0" }
+biome_manifest               = { path = "./crates/biome_manifest", version = "0.0.1" }
 biome_markdown_factory       = { path = "./crates/biome_markdown_factory", version = "0.0.1" }
 biome_markdown_formatter     = { path = "./crates/biome_markdown_formatter", version = "0.0.1" }
 biome_markdown_parser        = { path = "./crates/biome_markdown_parser", version = "0.0.1" }

crates/biome_cli/src/service/mod.rs

@@ -284,7 +284,10 @@ where
         if let Some(channel) = channel {
             let response = match (response.result, response.error) {
                 (Some(result), None) => Ok(result),
-                (None, Some(err)) => Err(TransportError::RPCError(err.message)),
+                (None, Some(err)) => match err.data.and_then(|data| from_str(data.get()).ok()) {
+                    Some(diagnostic) => Err(TransportError::RemoteDiagnostic(Box::new(diagnostic))),
+                    None => Err(TransportError::RPCError(err.message)),
+                },
 
                 // Both result and error will be None if the request
                 // returns a null-ish result, in this case create a
@@ -443,7 +446,6 @@ struct JsonRpcError {
     #[expect(dead_code)]
     code: i64,
     message: String,
-    #[expect(dead_code)]
     data: Option<Box<RawValue>>,
 }